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Open - Source - Research => Member Benches => evostars => Topic started by: evostars on May 7th, 2019, 06:49 AM

Title: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 7th, 2019, 06:49 AM

The basic solid state hairpin circuit is explained here:
https://youtu.be/1Flj1i0zQ-8(https://youtu.be/1Flj1i0zQ-8)
see attached schematic

I want to advance it.

Since L3 only gets one impulse from L2 per period, Why not also pulse from the other side of L3, with a second L2 coil?

lets call them L2a and L2b. The impulses they create, would be alternating...  one (a) at the maximum, and one (b) at the miniumum (but seen from the other side of L3 this is actually a maximum also).
See attached picture.

this would require a single pulse generator, that drives the 2 separate L2 systems. This might be solved by Matts isolated gate drive circuit, or by a pulse transformer. I already made pulse transformers, and I'm not a fan of them, so I want to give the opto isolator a try.


Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 9th, 2019, 09:13 AM
I'm going to use 1EDI60I12AF as gate drivers. these are isolated, and need 2 power supplies.
Thanks Matt for advising to use these.

the specs of these are amazing, and it will be the first time I will use smd components.

part link, where data sheet can be found
https://www.mouser.com/Semiconductors/Power-Management-ICs/Gate-Drivers/_/N-41fcp?Keyword=1EDI60I12AF&FS=True
Title: My first Sony
Post by: evostars on May 13th, 2019, 03:40 AM
First time I soldered smd.
Wasn't that hard.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Matt Watts on May 13th, 2019, 12:00 PM
Good job Evo!   You must have far better eyes than I do--without 4x magnification, forget about it.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: patrick1 on May 13th, 2019, 01:51 PM
nice job,  that was super satisfying first time i did it too, -  concentration is heaps higher than my usual style of beer driven electronics.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 14th, 2019, 05:38 AM
Thanks guys! :thumbsup:

Also decided to step up the voltage capabilities to 900V by using 2 diodes in series and this Sic mosfet:
C3M0120090D

mosfet info page with datasheet(https://www.wolfspeed.com/c3m0120090d)

also ordered higher voltage tuning caps (1nf wima fkp1 2000v)
It doesn't seem to be needed but I rather play it safe.
the caps haven't changed their values although I have been crossing over the voltage threshold several times with many hundreds of volts. I think this is due to the difference in quality of the negative back emf.
Title: just an idea
Post by: evostars on May 15th, 2019, 06:36 AM
still waiting on the final parts.

the back emf is limited in voltage by the mosfet. the SiC sets the maximum around 900V
but... would it be possible to step it up, with another coil, just there to capture the back emf and step up its voltage?
yes but then it needs to be injected into a series resonant bifilar coil. thats a bit harder.

or not. basically, this is done by coupling l1 and l2, but making l2 step up l1. hmm...

L1 is basically only there to provide back emf. this means, high inductance low capacitance and low resistance would be best. Not a bifilar, but a pure inductive coil. Single distanced thick windings.
a single pancake coil with distanced windings, would be perfect.

L1 would demand high voltage, as the current/inductance would be lower probably.

pressure is needed. bemf impulse pressure. the faster the better, the higher in negative voltage the better.

just ideas...
Title: slight change in the radiant circuit
Post by: evostars on May 15th, 2019, 08:30 AM
I changed the function of c1 and c2 around. this also means the L2 is connected in reverse, outside rim (grounded) on C2

It simply makes a more powerfull impulse in L2:

- C2/L2 connection (outside rim L2) gets to see the back emf impulse. giving a maximum negative voltage.
- While the C1/L2 connection (inside rim L2) is being resonant, giving a maximum positive voltage.

this outside negative with inside positive results in a bigger voltage difference over the whole of L2, during the impulse.

I also changed the negative DC offset connection to C2/L2

The negative impulse, now reaches a quicker maximum, the 500V maximum of the IRFP460 makes it impossible to step up the voltage higher, as the body diode starts avalance and cuts the voltage off.
To avoid this, I slightly slowed down the impulse, by adding C5 parallel over L2, 700pF.  Its small capacitance is charged up by the back emf, and this adds some time to the discharge, making the impulse wider, and lower in voltage.

Now the back emf impulse voltage is lower (and loinger in duration), I can Increase the current and voltage of the dc power supply again. resulting in a higher voltage resonant sine in L2

I added the changes to the picture below in RED

The resonant sine of L2 at C1/L2 now doesn't show the impulse anymore, but is a flawless sine wave.
The circuit still works the same and can light a 28W lightbulb,
But it does look, like it needs less power for equal light. I tested this without proper tuning. So when tuned better, I should be able to see how much more...

Another thing could be using a 900V SiC mosfet, and doubling the voltage of D1 by putting 2 diodes is series. But I havent done this yet, because the capacitors also need to be stepped up, to deal with these increased voltages
Title: Let the build begin
Post by: evostars on May 16th, 2019, 01:53 PM
Here we go again.
I decided to put a fan on the mosfets.
the gate drive circuit will be on its own pcb, raised above the main radiant citcuit.
Already love it!
Title: smd microscope
Post by: evostars on May 17th, 2019, 03:26 AM
I was looking at a video of a smd soldering microscope comparison, and looked at the price of the best one. 280 euro on aliexpress. And probably more for custums duty tax.

Then I realized... My phone has a decent camera.
made some pictures with and without digital zoom.
pretty impressive. So for occasional smd work, Ill just use the phone (or a lense).

pictures says all, thats my pinky finger for size
Title: Layout
Post by: evostars on May 17th, 2019, 03:40 PM
been playing with the layout. These caps are BIG!
think this will be the layout. center green is low voltage gate driver circuit. it will be elevated.

to the right I added a buck converter that can handle 36V, it outputs 12V so I only need one external powersupply, (no battery needed) as I will also use a 12V to 15V isolated boost converter, thats the only part still in the mail.

Did several test with the new radiant circuit v2.0 much more power this way. But it als draws more power, low voltage is enough.

but for the buck converter to work it needs at least 13.5V to generate 12.
Title: gate driver sub board layout
Post by: evostars on May 17th, 2019, 04:18 PM
with room for the 12v to 15v isolated boost converter

bottom of the main board has no copper pads. I avoid  ground planes, as I dont want the impulse to loose voltage
Title: Parts are in, first gate driver ready for testing
Post by: evostars on May 20th, 2019, 01:43 PM
I soldered the first gate driver for testing. I made the gate resistor very small 1.5 ohm, so its limited to 10A.
But it might oscillate a lot.

12v to 15v isolated power supplies came in today. no duty tax. tested them. can be regulated by changing input voltage. Gave the 15 some extra capacitors to really be able to give a 10A punch to the gate. 100nF ceramic, 1uf polyester and 22nf polypropylene. together 1.122uF

still got rome for an elco. but hope I dont need it

input only has a 22nF and the 220uF from the buck converter (connects to main power supply max 36 V).
Title: testing gate driver FAIL
Post by: evostars on May 21st, 2019, 01:46 PM
hmm...
first I forgot hooking up the - input signal to ground of the IC.
Then I hooked it up correctly, and the signal on the input side looks good.
Voltages on the input and output side are correct 10V and 14,5V  well within range.
mosfet checks out.
 all connections are good.
 
But no switching signal at the gate.
Can't find anything wrong.

only thing left is the IC is dead... but I see no reason why it would have died...
I have not socketed it, so... hmm... build another one? this time,... with socket
 :-/
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Matt Watts on May 22nd, 2019, 05:17 AM
Slow and careful Evo.  Don't rush anything, start with low power and gently work up as long as everything checks out along the way.

Hopefully you didn't smoke the chip.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 22nd, 2019, 05:49 AM
Quote from Matt Watts on May 22nd, 05:17 AM
Slow and careful Evo.  Don't rush anything, start with low power and gently work up as long as everything checks out along the way.

Hopefully you didn't smoke the chip.
I hope so. Made another one, this time on a socket. voltages check out. connections are good.
I do see some kind of signal on the output side, but it is as if its  turned off, realy fast. As if its in protect mode.
These chips do have a protection build in, so I'll need to read that part again in the specs.
Title: 1EDI06I12AF isolated gate driver demands
Post by: evostars on May 23rd, 2019, 05:38 AM
I looked into the specs (attached) of the 1EDI06I12AF once more, to see why it isn't working (yet).

first, Vcc1 for me is 10V right now.
and Vcc2=14,5V. those values are good.

from table 3 operating values:
Vcc1= 3.1V to 17V (10V now)
Vcc2= 13V to 35V  (14.5V no load, so could drop and trigger under voltage lock out, UVLO Vcc2=12.7V minimum?)
Logic input voltages (IN+,IN-) VLogicIN = -0.3 17 V

The input signal (table 5) needs to be
Vin low= maximum 1.5V and 30% of Vcc1 (3V)  (0V)
Vin high=minimal 3.5V and 70% of Vcc1 (7V)

From this... I conclude, I cant just use the logic level inputs. they need to be a minimum of 3.5V (need to check this)
But also... the Vcc1 needs to be much lower as Vin high needs to be at least 70% of Vcc1.
if 3.5V =70% then Vcc max=5V.
A higher voltage vcc wont work .

Solution is, not use the cmos outputs at 3.5V.  keep running Vcc1 at 10V.  and use the inverted inputs, to get the signals 180 degrees out of phase.
much easier also...

Vin has a max of 17V. need to check that. but also a min of -0.3V  need to check that also. I have seen the pulse gen signal mirrored on the negative side. so, I will limit this (zener, or straight diode to Vcc-)

Enough for now...
Title: pulse generator signal
Post by: evostars on May 23rd, 2019, 05:53 AM
my square wave generator gives a +5V and -5V output relative to ground. together 10V... but.... relative to ground.
I think I can fix it, by not using the ground of the pulse gen, and using ground from Vcc1

this creates a problem, with the inverted signal, that needs to be referenced to Vcc1 high. cant have both. as Vcc is the same.

maybe a solution is to use the cmos out, and use a transistor to raise the voltage to Vin.

the generator has 2 cmos outputs, both 3.5V (ttl) referance to ground (positive) To use these, I would need a switch, for turning the system of (Or i need to turn the whole pulse generator of, and it takes time to start up.
But more important, I need to change Vcc1 to 5V. 

Vcc1 is now determined by the buckconverter 10V output, that is set to 10v so the isolated boost converter gives 14.5V unloaded.
So this 10V (that might be raised to 12V when the load is on) needs to be converted to 5V....
First tought is another buck converter, giving 5V. But since there is almost no current of Vcc, I might do a resistor voltage divider.
Power dissipation (Input side) PD, IN = 25 mW  (table 2 absolute maximums)

2x 180 Ohm with cap over it.
both 5V=0.027A and 0.139W per resistor

with 12V its 2x 6V
6v=0.0333A  and 0.2W 

add a 5V zener maybe, to deal with the extra 1V?

or a lm317
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on May 23rd, 2019, 08:00 AM
So why not use a good old LM7805 to get 5VDC?
https://stak.com/7800_Series_Linear_Voltage_Regulators__1.5A_Voltage_Regulator__Various_Pack_Sizes_Available_to_save_you_money_
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 23rd, 2019, 08:03 AM
Quote from Lynx on May 23rd, 08:00 AM
So why not use a good old LM7805 to get 5VDC?
https://stak.com/7800_Series_Linear_Voltage_Regulators__1.5A_Voltage_Regulator__Various_Pack_Sizes_Available_to_save_you_money_
yes! confused the lm317 with it.
even easier

thanks :thumbsup2:
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 23rd, 2019, 12:12 PM
Placed the 78L05 in with a 0.1uF over the 5V output, and voltages check out. now for the signal to the input... hope I dont lose to much voltage, with the bnc signal wire I bought.
And enough power left on the 100mA 78L05, for a low current red led, to see its working.
Title: we got signal
Post by: evostars on May 23rd, 2019, 01:05 PM
YES! measured a nice 15V square wave on the gate terminal. both work, also with the bnc!
Feels good. reached another goal. wanted to build this for years.
First time I tought of this, is when I wanted to make 2 similar tesla coils, and make them out of phase.
Now I can.

Now put a mosfet in and see how switches, then with a resistive load, then with a coil.
but first a well deserved brake.
Title: mosfets switch resistor test successfull
Post by: evostars on May 23rd, 2019, 04:42 PM
as expected I needed to raise the voltage when the gate driver was connected to the mosfet.
tuned it to vcc1= 11.61V giving vcc2=14.92V just below the 15v zener threshold.

signals look good. nothing getting hot.
isolated boost converter is slightly warm.

so far so good.
Title: mosfets switch coil test successfull
Post by: evostars on May 24th, 2019, 03:43 AM
Can easily produce a -900V impulse with a Sic mosfet, with very low power.
Next step, Incorporate it in the new radiant circuit.
I will set it up so it can handle the higher voltages (series diodes better caps).
I also got some silver plated copper wire 1 mm2 to hook it up.
extra low resistance for the impulses.

This is working out rather good! Faster than I expected. but not there yet. fingers crossed
Title: I love how this looks
Post by: evostars on May 24th, 2019, 01:00 PM
Beautiful, 2 working gate drivers. I like where this is going.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 24th, 2019, 02:25 PM
another photo just because its beautiful
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on May 24th, 2019, 02:34 PM
Quote from evostars on May 24th, 02:25 PM
another photo just because its beautiful
Love your enthusiasm :thumbsup2: :-D
Title: gate driver circuit
Post by: evostars on May 24th, 2019, 03:15 PM
First time I worked with EasyEDA, so did my best...
here is the schematic : https://easyeda.com/MasterIvo/high-side-gate-driver-for-n-mosfet

the 12V buck converter, is powered from the VCC of the mosfet:

VCC mosfet is the main power input min 13,5V - max 36V
into  buck converter (2A) making 12V
12V into 78L05 (0.1A) for 5V VCC1
12V into isolated boost converter (2W altough 3W would be better) for VCC2

12V is also used for the cooling fan of the mosfet radiator

edit: did several corrections to the schematic
Title: Oil bath
Post by: evostars on May 25th, 2019, 04:40 AM
since I work with dielectric fields, and air isn't the best dielectric medium, I want to use oil.

I tried Latex as a dielectric but it was much to hard to work with, and it didn't stick to the coils.

I'm thinking of using a bin where I can put the coils in, fill it up with oil and put a lid on it. the Lid could hold the circuit (although it could also be submerged, I preffer not to).

But maybe its to soon...
baby steps...
first finish the circuits.

I'll probably need to make new (equal) coils. Those would need to fit the basket.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 25th, 2019, 08:06 AM
made an interesting mistake.
I felt a bit weak, So I hooked up the coils without a load. I decided to let it run for a while (feel fine already).
when I turned off the system, I saw the pulse generator was powered by a wall socket, instead of the high side battery.
It worked fine! the wall socket power supply must have some how isolated it.
Title: Finished the first circuit
Post by: evostars on May 25th, 2019, 04:20 PM
Used 1mm2 silver plated multi stranded copper wire for the impulse path (extra low resistance).

looks good. testing soon
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on May 26th, 2019, 12:52 AM
Looking good Evo :thumbsup:
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 26th, 2019, 05:30 AM
Quote from Lynx on May 26th, 12:52 AM
Looking good Evo :thumbsup:
Thanks :)
Title: first test successful
Post by: evostars on May 26th, 2019, 05:32 AM
Finished the first circuit and tested it.
easily could produce 800V impulses, and off scale sine wave in l2.

super cool.

next up. building the second circuit
Title: second circuit tested and working
Post by: evostars on May 26th, 2019, 10:57 AM
Fully assembled second circuit, and tested it.
First something shorted out, so I had dinner, checked everything, and nothing found. hooked it up, and it works. funny how these things work.

So, now I have 2 equal working circuits. Time to hook up the coils... need at least 4 coils lets see what I have got...
Title: double system working together
Post by: evostars on May 26th, 2019, 11:33 AM
Found 3 equal coils and one Phi ratio, that I used for L1 (higher inductance, bigger back emf)

L2 coils work in unison.  out of phase, as I'm driving them from my cmos ttl output from the square wave generator, that are out of phase.

impulses alternating. one each half period.

Loose coupled both the L2 coils (L1's separated) stacked them with 4.5cm distance.

When the l2's are counter rotated, they draw much more amps, and produce much bigger resonant voltages.
When the L2's are not mirrored/counter rotated  voltages dont really change.

Need to check connections in coils.

BUT ITS WORKING!!!  :clap: :clap2: :bliss:

Time for a break.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 27th, 2019, 08:30 AM
just did another quick test. Really interesting.    when the 2 L2 coils with their alternating impulses are loose coupled, the resonant voltage goes way up in both coils, as expected.

But also, they change phase! very peculiar. as if the pressure is to much. and pushes the fields the other way... dont know precisely whats happening yet.  but very interesting.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on May 27th, 2019, 10:32 AM
Quote from evostars on May 27th, 08:30 AM
But also, they change phase! very peculiar. as if the pressure is to much. and pushes the fields the other way... dont know precisely whats happening yet.  but very interesting.
Break on through to the other side :thumbsup2:
Find out what gives, then show the rest of us how to replicate :-D
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 27th, 2019, 03:43 PM
Quote from Lynx on May 27th, 10:32 AM
Break on through to the other side :thumbsup2:
Find out what gives, then show the rest of us how to replicate :-D
Will do
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 27th, 2019, 03:48 PM
using the 2 out of phase cmos ttl outouts for the 2 circuits left me without a switch.

made a nice board with bnc connectors and a dpdt switch.

also got zapped AGAIN across both hands. really need protection. If I'm going to work at 1000V impulses, the zap is 1 joule, within a fraction of a second.
 :emperor:
bad. very bad.

 will install bleeder resistors or some sort of safety discharge thing, to stay healthy.

Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 28th, 2019, 06:58 AM
If I put a 2W 1Mohm resistor over the 2.04 uF cap, it would burn 1.3W or something like that. Thats not acceptable.

Instead to make it safe, I might need to make a discharge switch, so I can discharge the caps over a resistor. Something that will always work, and with some kind of back up plan, so I definitely know I'm safe.

or... as I always have done... stay at (relative) low voltage. 500V might be enough
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 28th, 2019, 10:08 AM
did some more testing with a single circuit, installed a discharge point for my power resistors, to discharge the caps. didnt use bleed resistors (yet).

installed a IRFP460A mosfet, without heatsink. Bad Idea It overheated soon, so installed a new one on the heatsink again. it really needs to be cooled (when the circuit draws amps).

Checked the power supply voltage, and it had a big ripple, so I connected the negative to ground, and ripple is gone. So it really needs a ground (I now use 1000uF for the input voltage, could be higher).

Also noticed, the resonant sine of L2 has changed phase, due to the new (reversed) functions of its adjoining caps. This makes sense. The resonance now takes place at the V+ side.
This also means, the back EMF, does not need to be delayed anymore (as with the previous version). It can be directly when the L1 coil is shut off (not just before turn on). So the diode function off the coil is still available, but not used.

Also added a 4cm distanced L3 coil (not tuned) on top of L2,  and connected a 5W 12V lamp to it. when L2 was tuned proper, it did light up. So thats working ok again.

I now use 60nF to tune L2.
Since I want maximum current, I want to play with the 60nF and see If I can get to the frequency that gives the highest current in L2 and L3. I need to load it, as my powersupply is now minimal 13V due to the minimum voltage needed for the boost converter.

The Idea is, the resonant L2 gets its power not only by the switching power supply, but also by the back emf impulse. and both should be matched for best results. Not completely sure about this, and that' s why I want to test it.

another thing I added, is 500pF across L1 so the impulse is a little bit slower, and more controlable (if its to fast, the circuit cant handle it).

standby power is now around 0.17A 13.5V=2.3W  This is due to the boost converters, and the cooling fan.

Title: crazy amounts of energy
Post by: evostars on May 28th, 2019, 01:59 PM
Just to give an Idea of what this circuit produces:
I hooked up L1 and L2  no L3 coil.
L1 and L2 are not coupled.

I am measuring the series resonant L2.  voltage, current, and impulse.
The series resonant tuning capacitor is 60nF,
Fres=45.46kHz
DC power input: 1.8A 13.0V =23.4W

The peak to peak voltage in L2 (resonant side) is 972V (yellow 10:1 curve newfile1)
the peak to peak current is 18A  (blue curve 10mV/A) EDIT:probed wrong, current is somewhat lower (voltage should be leading not current)
the impulse is -500V (yellow newfile3, blue is still current at 10mV/A)

The impulse is on the other side of the coil, so the total voltage difference(during the impulse, 1uS) over the coil is:
1/2 972=486+ 500=986V

These are impressive numbers to me, but, this is series resonant energy. and 21W is pretty much.
The real cool stuff happens, when L3 is loose coupled to L2 and is tuned to parallel resonate.

It would make sense that the more capacitance is series resonating with L2, the more current is needed to charge it up, and the more energy is resonating.
The question is,  how is it balanced with the impulse presented at the other end of the coil. My best guess is the 60nF is to big right now, it needs to be smaller, to become a better match for the -500V impulse.
But not to small, because when L3 is added, the frequency jumps higher. and I dont want it to high.

So what Am I looking for? How does this balance between impulse and series resonance manifest?
Lowest DC current draw, vs highest resonant voltage/current. This is do able. I'll just make a list with different values, and see if there is a logic to it.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 28th, 2019, 03:01 PM
changed the series resonant capacitor from 60nF to 30nF and correctly probed the current.
I expected lower DC input current, and lower resonant voltage. but, both went up. while the impulse went down in voltage.
Is this larger voltage (offscale guessing around 1400Vpp) in L2 due to the better balance between the impulse and resonance?

C2         Adc    Vdc     Fres     Vimp   Vppl2     Appl2
60nF     1.81    13.0    45.44    -510    984       18.2
30nF     2.13    13.0    63.54    -410   1400?      16.2

need to test more tomorrow, and see If I can make a curve. Probably will need to load L2 with L3 with a lamp. To keep the voltages in line.

Note to self:
Quote
Arrow on current probe should point in direction of ground
, away from positive.
Title: power supply ripple
Post by: evostars on May 29th, 2019, 05:15 AM
My power supply on the board now has a ripple of 8Vpp thats way to much, going to increase capacitance. with a poly propylene cap.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 29th, 2019, 06:00 AM
added a 1uF mpk10 but didn't do it still 8Vpp. Must be due to the boost converters.
Really need to increase capacitance a lot. find some room on the board. Since its so high frequency elco's dont work.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 29th, 2019, 06:36 AM
added 2200uF elco on both sides of the first buck converter, this reduced the ripple to 3V. acceptable for now
Title: dipping below zero
Post by: evostars on May 29th, 2019, 06:46 AM
interesting to see the L2 resonant sine dips below the zero voltage, when the resonant voltage really goes high
The DC offset created by the back emf isn't enough.
no implications as far as I see right now
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: patrick1 on May 29th, 2019, 09:29 AM
Quote from evostars on May 25th, 08:06 AM
made an interesting mistake.
I felt a bit weak, So I hooked up the coils without a load. I decided to let it run for a while (feel fine already).
when I turned off the system, I saw the pulse generator was powered by a wall socket, instead of the high side battery.
It worked fine! the wall socket power supply must have some how isolated it.
wow facinating, do you mean your bifilar pancake coils ?
Title: checking the ripple
Post by: evostars on May 29th, 2019, 10:55 AM
checking the ripple:
removed L2. removed Fan (from 12V)

standby power:
 60mA at 15V
no ripple

turned on switching L1 at 63.5kHz:
83mA at 15V  .
ripple is 1,5V but with a 4V initial spike.  (probably from gate charging?)

now I add the 12V fan:
standby:
192mA @ 15V
no ripple

turned on switching L1 at 63.5kHz:
211mA at 15V
1.5V ripple  4V spike (see attached scope 1:1 probed at V+)

EDIT:
Spike is from back emf at ground. Is the ground good enough?
Edit2:
YEP ground. when directly connected to ground at L1 ripple is: 200mV Big difference. Spike keeps being there at around 3,7V as expected.


checked with L2, and works also. the circuit just behaves different with the c1 and c2 reversed in functionality



Title: back to the test.
Post by: evostars on May 29th, 2019, 11:36 AM
close coupled a L3 phi ratio coil equal wire lenght, to l2 and loaded it with a 21W 12V light bulb.

Fres = 122 kHz
impulse = -332V
L2=196Vpp
lamp is medium dimmed on
DC= 0.98A 15.9V 

would love to keep the impulse at the same voltage of - 500V but... the lamp is much to bright at those levels. - 400V works. 1.21A @ 19.2V =23W.

probably will have to vary the voltages during testing...

Ill just play until I get it.
Title: impulse speed
Post by: evostars on May 29th, 2019, 11:43 AM
with 500pF parallel over L1 and a - 400V impulse at 121.84 kHz,
the impulse duration is only 700nS
this is probably due to the low resistance.
Very happy with this.
Title: Indicator for longitudinal pressure
Post by: evostars on May 30th, 2019, 03:19 AM
The circuit  produces an impulse, on one end of the bifilar coil. The impulse is from a back emf (L1), and is injected into the series resonant L2 coil.
So the impulse enters on end of the coil presenting a sudden negative voltage, while the other end of the coil is maximum positive voltage from resonance, giving a huge sudden change in voltage over the coil, creating longitudinal pressure.

This series resonance produces very high currents and voltages, from the positive power supply AND from the impulse. (the resonant coil is powered from BOTH ends)

I feel this powering from both ends, needs to be tuned, so the impulse is balanced with the positive power supply, giving a maximum longitudinal impulse. Just resonance, and just a impulse isn't enough. It needs to be at the right frequency. Probably related to the copper mass of the coil.

When this is tuned properly, the dielectric longitudinal impulse pressure wave is maximal, and is able to elevate a aluminum foil above the coil.
If not properly tuned, the foil will not float, but will be heated up by the eddy currents of the changing high currents/magnetic field.

So the Idea is, to keep tuning the coil, until the effect is observed.
Meanwhile,
input current and voltage can be measured, to give input power,

The impulse voltage needs to be at the same voltage for each test. If the frequency goes up, more voltage is needed to produce the same back emf voltage and vice versa, lower frequencies need lower voltages.

The coil will need to be the same each time. once we find the right frequency, where the aluminium foil floats,
We can do the test all over again, with a different coil, that has the same mass, but has a bigger center hole, that changes the capacitance/inductance of the coil, so we can see if it plays a role in tuning. (or not).

then if the mass really is the key, we test again, with a different mass of copper coil. If the realtion ship is found, this would make life easier in the future. But thats to soon...

First make a test setup, with enough load on L2, to keep the voltages down, and choose an impulse voltage.


Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 30th, 2019, 01:24 PM
did 5 tests, increased series resonant capacitance from 20 to 60nF
Nothing conclusive yet.
21W Lamp with 30W input got very bright... no wonder...


L1=L2=L3= 1.5mm2 9.246 meter 2x ; 0.3ohm ; 0.22mH  ; 492pF
L2 and L3 close coupled. L1 far away
L3 not grounded, so both leads show same voltage sine, that has a "dip" in it from the impulse.

Think I need to make smaller steps, but first I need to analyse the data, see if I notice something


Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 30th, 2019, 04:26 PM
after looking at the data, I probably need to go lower in frequency, and thus add more capacitance.
notice the voltage ratio of L2 and L3 at 60nf. 
its going up, thats good.

I dont want to drop below a certain voltage or else I will loose by buck converter.

to do so I will add capacity to L1, prolonging the impulse duration, which in turn lowers yhe impulse voltage, so I can put more dc voltage in, and still have a - 400V impulse

in this first test I had  700nS impulse from using 500pF over L1. will add 330pF making it 830pF
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on May 31st, 2019, 08:12 AM
I didn't have 330pF so I added 1nF to the L1 coil, together with the 500pF it makes 1.5nF, resulting in a 1uS duration impulse.

I did several tests from 60nF to 100nF, but nothing conclusive.

Then I tried to make sense of it, and make some logic.
I concluded: the Positive voltage of the resonant sine, on one end of the coil,
Together with the negative voltage of the impulse on the other end of the coil,
Together produce the longitudinal pressure.

But If one is only +100V and the other is -400 volt, the "zero" wont be in the middle.
To get the "zero" in the middle, both ends need to have the same voltgage.
So the resonant sine needs to be 800V peak to peak to match the -400V impulse.
From the data I have, I need a much lower capacitance less than 10, to get 800Vpp.
OR I could use a coil with more capacitance and inductance, to keep the frequency down.

So: use a larger capacitance/inductance coil, and tune, for equal voltage on both ends of the L2 coil.
Title: tested with equal voltage
Post by: evostars on May 31st, 2019, 11:01 AM
used the big coil, that I normally used for the output (radiant power video) for L2:
0.82mH 1.2 Ohm 804pF 20M of 0.75mm2
L3 is 9,264M 1.5mm2  Phi ratio coil, loose coupled to L2 by 15mm separated. (L2 and L3 have equal mass copper)

tuned L2 with 9nF series capacitance.
Fres= 78,94 kHz
DC power in: 0.797A 20.05V (=16W of which 2,5W are for the circuit power)
L2: 788Vpp @ 1.76App
L3: 222Vpp  @ 3.82App (loaded with 12v 21W lamp, medium yellow bright)
impulse: -400V 1uS

The L3 coil is not grounded, only measured the inside rim lead to the lamp. It shows a -46V dip.

Newfile5: yellow= 10:1 probe of inside rim resonant L2/9nF  ;  blue=10:1 impulse probed on the outside rim of L2

Newfile6: yellow=10:1 inside rim of L3 (not grounded) blue=10:1 impulse probed on the outside rim of L2.

I tuned for equal voltage difference, but the impulse is just after the resonant sine reaches its peak, so I should tune again.
This test is done with 500pF over L1, I could make it smaller in 100pF steps, to make the impulse faster (shorter in duration). moving it closer to the resonant voltage peak.

Amazing that 16-2.5=13.5W power into the coil, can make that 21W lamp glow that bright.
And then to think, L3 isn't even tuned yet, by a parallel capacitor...

L3 is not grounded, and shows a sine on both ends (both sides of the lamp). funny thing, is these sine waves, are in phase. Doesn't make sense to me. If I connect the outer rim of L3 to ground, the voltage drops, but the lamp doesn't change brightness!
Very strange.

Title: strange delay
Post by: evostars on May 31st, 2019, 02:05 PM
something else I noticed, is the lamp on L3 slowly comes on.
The L2 resonance is instant, but the L3 lamp slowly start lighting up and then becomes bright.
There is a delay somehow. very strange
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on June 1st, 2019, 01:55 AM
Quote from evostars on May 31st, 02:05 PM
something else I noticed, is the lamp on L3 slowly comes on.
The L2 resonance is instant, but the L3 lamp slowly start lighting up and then becomes bright.
There is a delay somehow. very strange
So either it's something very fundamental, I.E easily explained, which makes for the delay, or you've found some new novel way of powering a light bulb.

It would be interesting to see if the total power input to the circuit, as measured using say a current shunt in series with one of the input power supply wires, is equal to or greater than the sum of the power going to the lamps as the lamps (active) power are in the tens of watts ballpark range, not milliwatts or something like that.

Should it be the case that you see lower active overall power input to the circuit compared to the lamps power output then it's time to up the circuit a bit and connect active power meters to register both input power aswell as all the lamp output powers and.......see how the numbers adds up……..or not ;-)
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 1st, 2019, 02:37 AM
To soon for that Lynx, I could tune for parallel resonance and measure, but...
hmm maybe you are right.

but first I want to tune L2 so it can levitate aluminum foil.
I think I need pretty high voltages for that.

like this, but from the impulse combined with series resonance of L2
I feel there is a specific frequency where the coil circulates the fields and gives this action


https://youtu.be/zE50c7t4Bmo
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: haxar on June 1st, 2019, 03:58 AM
Quote from evostars on June 1st, 02:37 AM
I feel there is a specific frequency where the coil circulates the fields and gives this action
You could influence the field even further by generating propulsion against itself, by adding permanent magnets that spin around the perimeter of a charged plate to produce thrust.

chuff1 helped to test this theory:
https://drive.google.com/drive/folders/0B3SIPzTAhmnWTF8yM2J0by1IZlE

Discord, search: "spinning magnet(https://discordapp.com/channels/425894535755988992/426266443726979072/518531066970112003)"
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 1st, 2019, 02:52 PM
Quote from haxar on June 1st, 03:58 AM
You could influence the field even further by generating propulsion against itself, by adding permanent magnets that spin around the perimeter of a charged plate to produce thrust.

chuff1 helped to test this theory:
https://drive.google.com/drive/folders/0B3SIPzTAhmnWTF8yM2J0by1IZlE

Discord, search: "spinning magnet(https://discordapp.com/channels/425894535755988992/426266443726979072/518531066970112003)"
I could not find the documents you referred to
Title: Moving aluminum foil test setup
Post by: evostars on June 1st, 2019, 02:59 PM
I want to use the Phi ratio coils again.
The center hole might be vital.

Also I want to place the L2 coil vertical, and hang aluminum foil on each side of the center hole.

this way I can see if there is maybe one side that pushes and the other that pulls.

And as high voltage seems to be key, I need small capacitance, for high resonant sine waves.

this means a bigger coil to keep th frequency low enough.

also need to measure phase shift between voltage and current.

many questions still need answering.

One thing is nice, I can close couple l2 and l3. and still have high resonant voltages.
this calls for a 230V lamp load on L3, and parallel tuning.
Title: coil jig
Post by: evostars on June 2nd, 2019, 02:31 AM
Since I need bigger coils (higher voltage but lower frequency).
I want to make a coil winding jig, so each coil is closely matched.
I intend to use 20M 1.5mm2 pure oxygen free copper speaker wire.

I noticed the outer windings are so long, the extra 10m wont make it that much bigger.

It will be phi ratio coils, so I need to play with the size of the hole to make it prefect.
Once I know th diameter,
I can glue a 3d printed center column on a whitboard, to roll around.

a white board is helpfull because the wiredoesn't stick to it, when wimding.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 2nd, 2019, 03:38 AM
25 meter 1.5mm2 wire gives a 34cm diameter.

20m =31 cm

16.66 =28cm

the wire comes in rolls of 50m
I think I'll use 12.5m per coil. so I get 4 out of one roll. It gives a diameter of around 25cm. Thats still workable.
need to adjuat for phi ratio but, close enough
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 2nd, 2019, 03:53 AM
12.5m 1.5mm2
24cm diameter
5.5cm inner hole diameter
11cm coil width from hole to outer rim

phi ratio gives a much to big center hole. just doesn't feel right.
1/2 phi would be better.
with 11cm coil width its 3.5cm inner hole
Title: 12.5m 1.5mm2 5.7cm diameter
Post by: evostars on June 2nd, 2019, 04:45 AM
for 12.5m 1.5mm2 speaker wire
the best inner diameter is 5.9cm
this gives around 9.5cm coil width
and is a 1: 1/2 phi ratio.

but more importantly. it feels right

13cm start length for bridging the wire
18.2cm for first loop gives the right center hole
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 2nd, 2019, 06:07 AM
rolled 2 equal coils. bit hot, 30C so the coils are gettimg sticky. taped some paper to the whiteboard so it slided the coil better.
time to heat up the hotglue gun
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 2nd, 2019, 07:01 AM
Done!
pfew... took more time and energy than I hoped. but... they are good.

That picture makes me think of something.
 :P
Title: New coil values
Post by: evostars on June 2nd, 2019, 07:22 AM
739pF    0.34 mH    0.5 Ohm
and
725pF    0.35mH    0.5  Ohm

resistance might drop a bit if soldered.

Close matched! they'll resonate at the same frequency.

both made from 12.5 meter 1.5mm2 speaker wire. oxygen free pure copper.
24cm diameter
5.8cm inner hole diameter.
9.1 cm coil width.

inner diameter made by 13cm free end, then 18.2cm into a circle
Title: Coil windings of two bifilar pancakes as capacitor plates
Post by: evostars on June 2nd, 2019, 07:32 AM
Since the coils are made of speaker wire, one bifilar coil is 2 stacked windings.
Since only one end is resonant, one side has  the highest voltages differences.

since the series/parallel resonance of the 2 coils are out of phase,
The coils act as capacitor plates,
so it makes sense to keep the resonant sides of both coils together. they'll act as one resonant system.

Since L1 is fed with a square wave, it makes sense to distance it from the sine wave of L3, but thats not for now. to soon...
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: patrick1 on June 2nd, 2019, 11:47 AM
hmm very good build sir, -  aliens watching my wind mine from 1/4inch tube would have thought i was a gorilla for my usage of clamps and milk creates, - i swear i was about too set off a nuke the whole time
Title: L2 inphase current and voltage possible?
Post by: evostars on June 2nd, 2019, 01:00 PM
Added hookup cables, and used the new coils as L1 and L2.
tuned L2 with 36nF and got 49Khz.
It works so far.

Since adding aluminum foil, changes capacitance, and thus the resonant frequency, I'm thinking of using the "less" resonant side of the coil for the foil, but still think best is to put it vertical and use both sides.

Other thing is, I have seen L3 become in phase with voltage and current, when it lights up the lamp. Very awesome.

But now I wonder, can L2 by itself, become in phase in voltage and current, by the tuning of the impulse, into the resonant L2 coil???

Again, this asks for extensive testing...

after a hot 31C day, now thunder and lightning start. Love it
 :emperor:
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 2nd, 2019, 03:21 PM
just loose coupled L2 and L3 (new coils), and put a 16ohm resistor on L3 as load, to keep the voltage down in L2.
Man got so hot, I burned my finger.
Never mind the aluminum foil.
I'm going to tune L3 again (parallel resonance) and see what power it holds.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 2nd, 2019, 03:22 PM
Quote from patrick1 on June 2nd, 11:47 AM
hmm very good build sir, -  aliens watching my wind mine from 1/4inch tube would have thought i was a gorilla for my usage of clamps and milk creates, - i swear i was about too set off a nuke the whole time
I can't follow a word you're saying
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: patrick1 on June 3rd, 2019, 02:14 AM
its a sweedish thing
Title: Literally sick from tuning
Post by: evostars on June 4th, 2019, 12:16 AM
tried tuning around 158khz.
now im sick. radiation symptoms.
diarea, nausea
need to recover. and tune much lower

used 1.25uS -550v to - 600v impulses
duration might also be of influence

add: vomiting
 :offtobed:

theory is the fields influence the voltage level of the body.
the voltage level of the body is represented in pH.
If to much negative voltage is added to the body, the pH levels go way up (base, not acidic).
The cells im the body react to a to high pH with opening up and releasing their content.
Hence the diarea.

Don't quote me on this, it's just what I read and remembered.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on June 4th, 2019, 08:44 AM
Quote from evostars on June 4th, 12:16 AM
tried tuning around 158khz.
now im sick. radiation symptoms.
diarea, nausea
need to recover. and tune much lower

used 1.25uS -550v to - 600v impulses
duration might also be of influence

add: vomiting
 :offtobed:

theory is the fields influence the voltage level of the body.
the voltage level of the body is represented in pH.
If to much negative voltage is added to the body, the pH levels go way up (base, not acidic).
The cells im the body react to a to high pH with opening up and releasing their content.
Hence the diarea.

Don't quote me on this, it's just what I read and remembered.
This is really good to know, it's just unfortunate that you had to be the research subject to find this out yourself.

Stay safe Evo, perhaps some Faraday cage or maybe even a "Faraday curtain" could do the job of keeping radiation and the likes away from yourself?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 4th, 2019, 09:21 AM
Quote from Lynx on June 4th, 08:44 AM
This is really good to know, it's just unfortunate that you had to be the research subject to find this out yourself.

Stay safe Evo, perhaps some Faraday cage or maybe even a "Faraday curtain" could do the job of keeping radiation and the likes away from yourself?
Faraday cage won't work with longitudinal pressure.

I hope more people are replicating, so we can learn from each other and move faster/safer.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on June 4th, 2019, 09:28 AM
Quote from evostars on June 4th, 09:21 AM
Faraday cage won't work with longitudinal pressure.

I hope more people are replicating, so we can learn from each other and move faster/safer.
Well then if you could find something that which keeps you safe while experimenting with this, then that itself could mean that you've found another piece of the longitudinal puzzle.

Maybe connect a rotary potentiometer to a hamster wheel and observe the hamster from a distance while assessing how effective potential such longitudinal shields seems to be? :-D ;-)
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 5th, 2019, 02:14 AM
Feeling great again. still bit low on energy but food and rest will do the rest.

plan on making more equal coils.
but no tuning for now.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 5th, 2019, 06:43 AM
Made a third coil, to use as L1. Now L1 L2 and L3 are all equal new coils.
Friend of mine gave the tip to use 36kHz:
Quote
tune the coils at resonance for 36 Khz ,all Tesla Oudine   and other healing machine work with this frequency.
For me that's a pretty low frequency, will need several hundred nF of tuning capacitance.
Title: radiant sparkgap
Post by: evostars on June 6th, 2019, 05:54 AM
To give me enough time to recover fully, I started a little side project.

I have been wanting to do this for a while.

discharge the back emf of L1 through a spargap.

I made a sparkgap with some needles for very low voltages (see photo). I can have sub millimeter sparkgaps. 3000V per mm is normal, so 600v= 0.2mm

I can add a fast diode and a capacitor for more power,  if needed.

also steam can be used for better air conductance

The Idea is to see if the colour of the spark is different (than positive back emf).
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 6th, 2019, 07:29 AM
got a - 900v back emf, but doesn't spark over.
It does create a tiny single spark if I make the needle tips wet.

next: install diode(s) and cap
Title: White sparks
Post by: evostars on June 6th, 2019, 10:02 AM
jeej it works.
Man those SiC mosfets go way beyond the 900V. Had to crank it up until it worked don't nu how much, but guessing around 1500Vdc.
humidity is very low 39% so... maybe need some steam in here.

Added 2x mur460 in series, into a 10nF 1000V dc cap (overcharging).

The spark is pretty loud for such a small gap: around or less than 0.1mm

And as suspected:
The spark is white! not purple not blue...

will try to make a small video and upload it. (before the needles wear out)
Title: White spark video
Post by: evostars on June 6th, 2019, 10:19 AM
Little test.
Bifilar coil high side switched, producing negative back emf.
Charged up into a 10nF mpk10 1000V cap, via 2x mur460 in series.
Sparkgap less than 0.1mm  made of 2 needles.
very dry arir, less than 40% humidity.
Needed to push the voltage to around  -1500V

enjoy ;)

https://youtu.be/zQNKQWFCFCs
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 6th, 2019, 11:43 AM
I think I need to repeat the test with positive  back emf (low side switched coil)
to really show the difference.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on June 6th, 2019, 12:18 PM
So far so good :thumbsup2:
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 6th, 2019, 03:45 PM
cant use the high side switch as a low side switch.
due to the architecture it will short out positive and negative supply.

but I can use the previous battery based switch I think...
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 7th, 2019, 03:49 AM
Battery power high side switch is giving me problems, first I had to connect the mosfet. Small job, no problems.
Then hook it all up. Great, fine.

start testing... no signal on the gate.
fiddling around with the wires, I see gate signal on and off, cant seem to pinpoint where the problem is...
frustrating... :-/
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 7th, 2019, 03:55 AM
found it. faulty bnc
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 7th, 2019, 04:04 AM
hmm same problem. High side switch cant switch low side (ground)
I have no idea why, but the amps go high 1A at 2.3V  with almost no back emf.

must be a simple reason. diodes are fine, not open until back emf when mosfet opens circuit to ground.
coil has no short

hmm. time to let go.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 7th, 2019, 05:01 AM
put the radiant circuit back up
115nF for L2 gives 36kHz.
wont tune now, not completely  fit yet
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 7th, 2019, 06:05 AM
Just a small test.... can't leave it alone.
No L3 coil, L1 and L2 not coupled.
L1 tuned by 116nF
DC power input: 1.11A 13.0V

Newfile7:
yellow=10:1 L2 voltage 668Vpp
Blue=10mV/A current 12App

newfile8: Blue= negative spike 10:1 at L2 base, -600V

newfile9: Blue= zoomed into spike, showing 1.4uS duration.  (tuned with 3x330pF=990pF over L1)
I could make it quicker by removing a 330pF over L1, but the voltage would increase over -600V and my current mosfet is at its limits (IRFP460A)
I could use a different mosfet, to be able to get higher...
Also DC input is at its minimum of 13V

Look at those Amps and Voltages in L2  12Amps peak to peak. that's not small, together with the 668Vpp. A lot of energy moving back and forth between the cap and the coil..

The question remains, can I tune the impulse of L1, with the positive power supply, Both feeding the L2 resonance?
Could the voltage and current become in phase, as I have seen in L3.
With close coupling of L2 and L3, I have seen it happen before in both L2 and L3. (becoming one resonant system).

I really want to step up the voltage of the impulse, and... I have 1200V SiC mosfets... But not ready for it yet.

Also since L2 has a DC offset, the coupling to L3 makes L2 and L3 like plates of a capacitor. Maybe the voltage offset, creates a direction for the ring toroid to move.  Think, the voltage really needs to be high, and the distance small. Again... Speculations, from a mind that doesn't understand.
Dear heart guide me along the way, and keep me safe and healthy
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 7th, 2019, 06:28 AM
A little calculation to show the energy level change during that 1.4uS impulse.
I'm not going to use the cacitance of the tuning cap, just the capacitance of the L2 coil (measured when windings are not series connected)
L2: C=730pF 0.35mH 0.5 Ohm
V max= 1/2 668=334V  this gives Q=0.04071794 J
during impulse
Vmax=334+600=934V giving Q=0.31840994 J
delta Q=0.31840994-0.04071794=0.277692 joule

So during the impulse, within 1/2 1,4uS, the energy in L2 increases 7.82 times (782%) up and then down again.
And this happens 26700 times a second.
delta q per second= 7414 joule
Right? :wtf:
thats a big push
 :shocked:
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 7th, 2019, 08:33 AM
Some more data. This time with L3 close coupled to L2 (equal new coils).
L3 is grounded on the outside rim, and not tuned or loaded.
116nF tuned to L2, at 26.7 kHz

newfile1:
yellow shows 716Vpp and the blue shows -600V impulse on both ends of L2 (10:1 ac coupled)

newfile2:
yellow= L2 10:1
Blue= L3 inside rim 10:1 probed.
It shows the same voltage as L2, and looks resonant, but isn't it just is dielectric coupled, and shows the same voltage. Notice the spike and ripple at Vmax.

newfile3:
Blue: I shifted the sine of L3 down, to show the spike ON TOP of the Sinewave Vmax.
This spike shows up as positive 730V. 130V MORE than the impulse of L2.

out of experiments I know, when L3 is tuned to parallel resonance, the Sinewave it shows is 180 degrees out of phase with L2. It is Due to the impulse, being recieved from L2, that shows up as a positive impulse.

The key, is to tune L3 to this impulse. The impulse itself can create resonance (tried this long ago and it works).
Potentially, V max L3 then becomes 730V + 1/2 716(L2) =1088V  =2173V peak to peak.

Meanwhile, L3 is coupled to series resonant L2...

To tune this, we need to load L3 down. or use a cap that can stand up to these high voltage (and power as the voltage becomes in phase). I do not have these caps, and do not want them. I think this is one of the biggest reasons why I got sick.

The load absorbes the enrgy, if its not absorbed, and still not tuned properly, the energy distorts the aether field, and I'm sitting in the middle of these distortions.
Just like a planet being hit by a solar flare, I am hit by these turbulent fields, and my lefe energy is stripped from me, or at least distorted. That's at least what I think is happening.

So a Load is crucial. but... with a load, we cant see the ripple anymore.

What I could do is make 3 or 4 measurements, with different capacitances over L3, and no Load (fast on and off). I have Long BNC cables, so I can stay out of those fields.

Then with those scope shots, I can look at the ripples created by them, calculate the resonant frequency and make  a guess to how much capacitance I need.

Normally L2 detunes also from tuning L3, but this will be less so, due to the large 116nF tuning L2.

Title: test 1: 115nF (equal to series tuning cap L2)
Post by: evostars on June 7th, 2019, 08:55 AM
Close coupled L2/L3
L3 parallel tuned with 115nF (equal to L2)
DC power: 1.93A 20.7V 
66.72kHz

newfile4, yellow L2 blue impulse on L2
newfile5, yellow L2 blue L3
newfile6, Yellow= voltage L3 (10:1) blue= current L3 (10mV/A) L3 outside rim grounded.  14 Amperes

sine waves of L2 and L3 are out of phase
L2 and L3 are equal voltage.
Frequency has jumped way up, and power drain is raised. (due to L3 parallel resonance loading on L2, not being properly tuned)

Question: should I expect to approch 26kHz again, when L3 is tuned properly to make both L2 and L3 resonant?
when is the current in L3 also in tune with the voltage of L3?
Damn... I don't have enough scope channels... Time for another 4 channel scope
Title: test 2 72nF
Post by: evostars on June 8th, 2019, 03:47 AM
Same test, but removed 43nF from L3 leaving 72nF parallel over L3.
DC input: 23.1V 2.23A  tuned to generate -600V impulses at 75.0 kHz

newfile7: yellow= voltage L2 10:1 (316Vpp) blue= L2 impulse -600V
newfile8  yellow=same, blue= voltage L3 10:1 (higher voltage, smaller caps)
newfile9  yellow=voltage L3 10:1   blue= current L3 10mV/A (current is higher, due to higher frequency?)
Title: test 3 212nF
Post by: evostars on June 8th, 2019, 04:07 AM
same test, nr3, more capacitance over L3: 212nF
DC input 1.76A 19.3V   to generated -600V impulses at 59.9kHz

Newfile10: yellow= 10:1 voltage L2  blue 10:1 impulse L2 -600V
newfile11   yellow=same, blue is voltage L3
newfile12 yellow is 10:1 voltage L3 blue = current 10mV/A L3
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 8th, 2019, 04:12 AM
quick conclusion:
voltage and current resonant 90 degrees out of phase.
More capacitance lowers the voltage, but only slightly lowers the frequency.
smaller capacitance, gives higher frequency higher voltage higher current.
Nothing special here.

What to do next? resistive load? no
 Or... walk through frequencies of L2 by changing series tuning capacitance of L2? and look at voltage/current inphase?
yes
Title: L2 resonant tuning 3 tests unloaded
Post by: evostars on June 8th, 2019, 04:47 AM
L3 removed, only measured L2 unloaded. DC voltage always tuned for -550V impulse

series
tuning
cap         freq       Vpp      Ipp       Vdc       Idc
116nf  26.6kHz   660V   12.6A   1.08A   13.0V    newfile 1
106       27.8       740      13.6      1.18     13.4     newfile 2
96         29.1       812      14.0      1.23     13.8     newfile 3
86         30.6       900      14.8      1.29     14.4     newfile 4

voltages and current quickly rise , so will need to put L3 close coupled to L2 again, and put a resistive load on.

voltage in yellow blue is current
Note how the current jumps at the time of the impulse (Vmax positive). I think, when properly tuned, this jump can make a big difference. The "jump"  also grows in voltage(current) with rising frequency/less capacitance, but the current also grows in total...

I should keep an eye, on this "jump" and also look at changes in the phase angle between voltage and current
Title: tuning L2, with close coupled L3 and 16.4 ohm resistive load
Post by: evostars on June 8th, 2019, 05:29 AM
L2 and L3 close coupled.
L3 loaded with 16.4 ohm power resistors (that have some inductance).
Tuned DC input to generate -500V impulses

Did several tests, but almost no difference between them so only post the extremes:

series
cap       Fres        L2        L2      DC in    DC in
86nF   86.7kHz   76V    3.0A    0.74A    27.4V         newfile1   
116nF  84.2kHz   53V    2.8A   0.66A    26.3V         newfile2

yellow 10:1 voltage on L2
Blue 100mV/A current on L2
both probed, on the smae spot between the tuning cap and L2

Note how there are no sine waves.
L2 coil is only loaded on 1 side by L3
Note the small change in frequency with a large change in capacitance

I will need to go down in capacitance, which will mean, raising the frequency again...
I think this is a health risk, but, I'm recovered fully, and L3 coil is close coupled, and not resonant tuned, with a resistive load it will probably absorb all the energy (I hope)....

The voltage and current also don't look 90 degrees out of phase anymore. This is good! but also hard to see with these distorted waves.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 8th, 2019, 10:43 AM
Almost forgot, I can tune the impulse with the capacitance over L1.
I now use a 16.4 ohm resistance over L3. these are 2 8.2ohm power resistors in series.
But I like to have a little more current, so, I will take only one (8.2 ohm) or 2 in parallel (4.1 ohm).
The lower the resistance the higher the current...

I waited a few hours, to see how I felt. seems ok, so I will proceed with tuning L2 and see what the voltage and current do.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 8th, 2019, 11:48 AM
changed the load
from 16.4 ohm / 84.2 kHz (2 in series)
to      8.2 Ohm / 70.7khz  (single)
to       4.1 ohm/  60.9 kHz (2 in parallel)

Funny how less load drops the frequency. It has some inductance, but not much.
Maybe, the dielectric field voltage in the resistor is transformed into heat, and there for the capacitance is reduced.

Did several tests again tuning L2, with L3 close coupled, and loaded wiith the 4.1 Ohm. Again, tuned for a -500V impulse
                |      L2       |      DC        |
nF    Fres  Vpp   App   A         V
116  60.9  124    4.4    0.85   18.1  newfile3
 76  70.6  192    5.2    1.02    20.7  nf4
 66  74.6  222    5.5    1.11    21.7  nf5
 56  79.1  268    5.9    1.24    22.4  nf6
 46  85.7  324    6.4    1.37    23.9  nf7
Yellow voltage 10:1 L2
Blue current 100mV/A L2
Note how the sudden current change, at the time of the impulse (vmax positive L2), disappears at higher frequencies.
Is this a measurement error, or... not?

Also keep in mind of the phase offset of the current probe at these frequencies
OW, and yes the resistors get warm/hot. Only testing as short as possible. not leaving it running
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 8th, 2019, 12:04 PM
did another test, with last setup, 46nF 85.7kHz
but measured voltage and current of L3

I know from previous tests, I need to point the arrow of the current probe pointing to ground.
But then voltage and current are out of phase (appear... phase lag not accounted) newfile 8

So I did reverse the probe, and made a screen shot of that also. (newfile9)
With the -45 phase shift, it makes more sense. but... still dont know how to probe with the current probe, with a resonant coil. Which way should the arrow point

Voltage is low, as the 4.1 Ohm resistors burns it into heat Probed with 1:1 setting yellow
and 100mV/A blue

-45 degrees phase shift @ 85 khz (see chart)
Title: Please HELP
Post by: evostars on June 8th, 2019, 12:12 PM
still dont know how to probe with the current probe, with a resonant coil. Which way should the arrow point?
Does anyone know? please let me know.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on June 8th, 2019, 12:54 PM
Quote from evostars on June 8th, 12:12 PM
still dont know how to probe with the current probe, with a resonant coil. Which way should the arrow point?
Does anyone know? please let me know.
As I understand it, it is alternating current running through the coil, correct?
Then why would it matter which way you connect the current probe?
Do you get different readings is you reverse polarity on the probe?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 8th, 2019, 01:55 PM
Quote from Lynx on June 8th, 12:54 PM
As I understand it, it is alternating current running through the coil, correct?
Then why would it matter which way you connect the current probe?
Do you get different readings is you reverse polarity on the probe?
yes phase is shifted, and artifacts are different  plus the amplitude differ.

Title: Step Off the Beaten Path
Post by: Matt Watts on June 8th, 2019, 02:02 PM
Evo, I'd like for you to try an experiment.

This one is more about the man than the device.



Your scope depicts a two dimensional slice through the fields of your device--magnetic and dielectric.  Since you can't easily take pictures/slices at any particular location and geometric coordinates like a doctor would with an MRI machine (think brain scan), I'd like for you to engage your imagination to fill in all the blank spots you cannot see with your two eyes.  Imagination Evo, your third eye, the one we have been trained to put blinders on and forget about.

I'd like for you to imagine those fields and consider what might happen when you orient them in a manner quite different from conventional engineering.  Think about Mr. Tesla's spherical antenna where all the magnetic fields slam into each other allowing only the longitudinal dielectric fields to propagate away from the antenna.  Think about the fields produced by these flat pancake coils and how they are so much different than solenoid shaped coils.  Visualize in your mind the fields, where they are, how strong they are, what they cut through and what they reflect off of.

What I'm asking is difficult, I'm fully aware of that.  I want you to step up to the next stage of exploration.  It's time and you are ready.  What I'd like for you to do is forget about analyzing and attempting to replicate someone else's work.  I want to see your work, your creation, your imagination come to life.  Imagination is what's real; what we normally think is real is only someone else's imagination.  This is your show Evo, wow us off our feet.  Create something unique, something truly yours.  See it in your mind and make it so.

You may not comprehend what I'm asking for right at this moment, but you will.  You will soon see what very few others have.  I know you have it in you and soon you will find it.  And when you do, this will all seem like a walk in the park.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 8th, 2019, 02:13 PM
Quote from Matt Watts on June 8th, 02:02 PM
Evo, I'd like for you to try an experiment.

This one is more about the man than the device.



Your scope depicts a two dimensional slice through the fields of your device--magnetic and dielectric.  Since you can't easily take pictures/slices at any particular location and geometric coordinates like a doctor would with an MRI machine (think brain scan), I'd like for you to engage your imagination to fill in all the blank spots you cannot see with your two eyes.  Imagination Evo, your third eye, the one we have been trained to put blinders on and forget about.

I'd like for you to imagine those fields and consider what might happen when you orient them in a manner quite different from conventional engineering.  Think about Mr. Tesla's spherical antenna where all the magnetic fields slam into each other allowing only the longitudinal dielectric fields to propagate away from the antenna.  Think about the fields produced by these flat pancake coils and how they are so much different than solenoid shaped coils.  Visualize in your mind the fields, where they are, how strong they are, what they cut through and what they reflect off of.

What I'm asking is difficult, I'm fully aware of that.  I want you to step up to the next stage of exploration.  It's time and you are ready.  What I'd like for you to do is forget about analyzing and attempting to replicate someone else's work.  I want to see your work, your creation, your imagination come to life.  Imagination is what's real; what we normally think is real is only someone else's imagination.  This is your show Evo, wow us off our feet.  Create something unique, something truly yours.  See it in your mind and make it so.

You may not comprehend what I'm asking for right at this moment, but you will.  You will soon see what very few others have.  I know you have it in you and soon you will find it.  And when you do, this will all seem like a walk in the park.
Thx Matt,
You might be right.
but I need to stop my mind. it is blocking me again.
Good thing is, I dont use black spraypaint on my third eye anymore (alcohol drugs social media).

I have a new tool that really helps.
VR
Tilt brush,
it lets me draw in 3D. really help full.
already gave me new insights.

Main thing I'm thinking about now,
Is the impulse on one end
and the regular V+ current on the other end
of the coil.

both ends feeding the resonance.
they should be able to match up.
allign, and...

I'll get there Matt.
Thanks for having confidence in me.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 10th, 2019, 12:21 PM
Made a proper BNC connection on the gate driver board. kabel snapped...
also added a led to see its on
Title: synchronous push and pull
Post by: evostars on June 13th, 2019, 04:02 AM
I realized something. The L1 back emf, of - 500V 1uS is also creating pressure from the L1 coil. As one side is grounded and the other is - 500V

So by combining the pressure of L1 and L2 I can create a directed stream. one pushes, one pulls.  L3 is in between them.
Theory works. Not fine tuned yet but had 0.7A at 32V input(22W), and 28 lamp was Lit.

going to try fine tuning it later
Title: L3 tuned in the middle
Post by: evostars on June 14th, 2019, 03:28 PM
After some tuning, I reached the maximum brightness of the 28W halogen lamp  (not full on, but very bright).

DC input: 0.71A  32.3V  = 23W

L1 parallel tuned with 2490pF (to get a proper impulse) giving -616V impulse
L3 parallel tuned with 27nF Giving 456Vpp  and around 5,4App current, pretty much in phase.
L2 series tuned with 56nF  giving 120Vpp

At a resonant frequency of 69,525 kHz

3 Coils stacked with 15mm distance (see photo) L3 is in the middle, and L1 is reversed connected.

The max output peak wasn't that abrupt. rather a smooth build up. I kept L2 at 56nF and tuned L3 by changing with 1nF.

newfile1:
yellow=L2 10:1 voltage inside rim probed;
blue is L2 impulse outside rim probed

newfile2:
yellow=L2 10:1 voltage inside rim probed;
blue is L3 voltage inside rim probed (outside rim grounded) 10:1

! that bump at the time of the impulse, that needs to grow bigger!

newfile3:
Yellow=L3 current 100mV/A probed on inside rim;
blue is L3 voltage inside rim probed (outside rim grounded) 10:1

69,525 kHz gives a - 38 degrees phase shift on the current probe, making the blue and yellow close to in phase.

Note how L2 is only 120V peak to peak, and L3 is 456V peak to peak, while being loaded with the 28W lamp!
L3 being in the middle is coupled to L1 and L2.

The trick seems to be, L1 back emf=impulse negative pressure
 L2 impulse with resonant sine, gives a polarity change in L2, creating positive pressure.
negative, flows towards positive, and this is the condition to create a ring toroid.

Notice, how the voltage grows at the time of the impulse.

I feel this isn't the proper setup yet. Want to try with L2 in the middle. if its the same, I will need to progress to a double system

Also working on new video material.
Title: L2 in the middle
Post by: evostars on June 14th, 2019, 03:47 PM
with L2 in the middle, the same effect is observed. L3 now is only coupled on one side, so it will need to be retuned to see the full effect. then Ill know how low the DC input current drops. and how high the output rises
Title: SiC
Post by: evostars on June 16th, 2019, 01:31 AM
I tried a 2m0160120d cree/wolfspeed mosfet,
1200V 160mOhm
 but It needed more current, and gave less impulse.
I guess, because I use 15V for the gate, and it need 20V for best performance.
Could tweak it, but will save it for the future.

I intended to inject a higher negative voltage impulse, from the back emf of L1.
But I'm already at 32V  I could switch my powersupply  in series and get 64V. but...
expierence showed, the impulse needs tuning, If I make it faster It wont always make a single impulse, but it starts to ripple
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 16th, 2019, 01:42 AM
I need to see If I can increase this bump, seen on L2 and L3

If L3 isn't tuned (no parallel cap over L3), does it still show up on L2?
If so, L2 could be tuned, to get a maximum bump

yellow=L2 voltage 10:1
blue=L3  voltage  10:1
Title: bump
Post by: evostars on June 16th, 2019, 02:34 AM
I replaced the lamp and caps on L3, with a 4.1 ohm resistor, and looked If I still could see the bump on L2.
And yes its there. Now I can see if tuning L2, has an effect on that bump.

0.92Adc 21.3Vdc input
43.64 kHz
L2=540Vpp (yellow 10:1) impulse is -610V (blue 10:1)
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 16th, 2019, 01:45 PM
I stepped up the series capacity of L2 with 10nF steps to 106nF
I didn't really see a difference in the bump. it  did gain some volts from 18 to 34V
but nothing dramatically.

I need to do an analysis and understand what it is. Where does this voltage come from?

the impulse on the other side of L2 is negative, So the relative voltage over L2 is changing polarity.
During the impulse it first neutralizes the voltage difference, but the impulse is always more negative then the resonant sine is negative.

So the negative resonant part becomes relatively positive to the impulse.

At that point in time there is no magnetic field, so the Aether is free moving.

is it "closing the gap"  by becoming more negative, that is relative less positive?

I really want to test again with a smaller L2 resonamt voltage. during the tests I used 4.1 ohm that quickly became searing hot.
If I increase the resistance, the amps will be lower, and thus the voltage also? this could make L2 lower in voltage, giving a bigger delta V between its ends.

Or make the impulse bigger, but that would need a tweaked gate driver, giving 20V.

edit: a bigger resistor is a smaller load... right? Don't I need a smaller resistor to get the voltage down... small resistor, high current and voltage, taken way from L2 reducing its voltage?
sometimes.... no often, logic fails me. And that's a good thing
Title: capacitor tuning switchboard
Post by: evostars on June 17th, 2019, 07:06 AM
I had enough (10) switches to make a capacitor switch board.
this way I can more easily tune. by connecting 1nF to each switch.

they are not fully rated for the voltages, but I guess I will be fine.

once I reach 10, I ad another 10nF, reset the switches and proceed

need some more switches for the 10nF caps.

tested it and it works.
this makes tuning so much easier!
 :bliss:
Title: High Q
Post by: evostars on June 18th, 2019, 02:50 PM
while playing I saw a flash in the lightbulb.
could not zoom into the frequency.

after thinking it over, I realized I made coils with relative high inductance / capacitance and low resistance.

This means the Q is very high. And when I'm tuning, O need smaller steps. 1nF is to big.

I ordered more switches so I can include a row of 100pF and make small adjustments in the resonant frequency.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 19th, 2019, 04:02 AM
still waiting on the switches for the tuning board.
Meanwhile, close coupled L1 and L2, gives more reduced current consumption, while still giving a big impulse over L2. L3 on top 15mm distanced, untuned, with a 28W lamp, made it glow orange. This is good... This needs parallel tuning...
then mirror the same setup (another l1 amd l2 bit out of phase) on the other side of the L3 coil.

I realized, that the delta V/ delta T  is basically the amount of current, as Steinmetz explained. making delta V big and delta T small, (impulse) is basically creating a current spike.

Current, is an indicator for the magnetic field, but, if the current spikes, the inertia of the (dense) Aether, creates a ring torroid, under the right conditions.

A ring torroid, has polarity, in its turning direction.

the longitudinal pressure needs to be given a direction.
This is done by creating 2 impulses, one pulling and the other pushing, one positive, the other negative.

The L1 has a collapsing magnetic field, creating an impulse over L1, thus it generates pressure.

L2 has the impulse over it, at the same time, and also creates pressure, as the impulse is timed when the magnetic field is zero (V max negative, series resonant). but it has " opposite"  pressure

the system is resonant, so the ring toroid grows and shrinks, reverses direction and grows and shrinks again, making one period.
The 2 systems create 2 ring vortices, that are joined into 1, around L3 in the middle.
This is a high precision setup... Tuning is key. not only by L3 capacitance, but also in distance, and equal coils, mass etc...

Title: Finished Tuning Board
Post by: evostars on June 20th, 2019, 06:14 AM
Finally I can easily tune, the board is finished.
5x 10nF
10x 1nF
10x 100pF
25 switches.

from 0 to 61nF in 100pF steps

maybe I'll put some distance standoffs and another board under it for safety etc...
Title: nice quote
Post by: evostars on June 21st, 2019, 02:02 AM
Quote
At present the phenomenon is described as follows: When a high voltage is established between the electrodes of an asymmetric capacitor, a net force is observed on said capacitor. We will understand an asymmetric capacitor, that in which the physical dimensions of both plates are very different. Based on this phenomenon it is possible to build prototypes in which the force originated exceeds its weight, such as the one presented in this communication and others that can be found on the internet [7]. It is observed that there always appears a force directed towards the small electrode and that said force appears independently of the sign of the DC voltage used.
from:
http://www.unizar.es/icee04/innovadoc/04_CUIEET_3EXPERIMENTOS_LEVITACION.pdf

found via:
https://youtu.be/lLsjYaUu5og

in the description he refers to 44kHz
Quote
388/5000
In this video, the coil is powered by a Halogen focus ELECTRONIC transformer that provides 12 V at about 44 kHz (actually the voltage given by this type of transformers is the 50 Hz signal chopped at about 42-44 kHz, depending of the model). This allows to levitate coils of few turns, because at those frequencies their inductance is much greater than the resistance.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 21st, 2019, 05:11 AM
until now l1=l2=l3
I will make a new L3 out of thicker wire, but equal mass.

this will make a unbalanced capacitor,
with L2 and L3 as the plates.

L3 has thicker wire, less windings, smaller area.
Title: bowl shape coil
Post by: evostars on June 21st, 2019, 08:05 AM
I would love to make a Bowl (half sphere) shaped L2 coil, and see if the pressure is focused. Like a lens focusing the longitudinal pressure into a point.

I ordered 2.5mm2 spraker wire for the new L3 coil.

weighed the copper of yhe 12.5 m 1.5mm2 coils,

10cm of bifilar =2.62 gram of copper
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 22nd, 2019, 06:17 AM
Made a new L3 coil
2.5mm2  equal weight (to l2) , 7.19 meters

its smaller in diameter. I also made the center hole smaller.

the dielectric lines of force will now converge from the bigger L2 (1.5mm2) to the smaller L3.
then from L3 diverge to L1

L3 in the middle.

this converging and diverging is what also happens in the center of a ring vortex
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 22nd, 2019, 08:17 AM
L3 in the middle, not tuned, already makes the 28W bulb glow from 13.3W

if that was a 5w 12V bulb it would be bright
Title: Inverse logic of the dielectric field
Post by: evostars on June 22nd, 2019, 11:29 AM
I remembered Steinmetz lessons on the inverse relation between the magnetic field and the dielectric field.
most of the knowledge is based on the magnetic field.

so our logic follows the magnetic field logic.
Like a transformer steps up voltage if it has more windings,
and it steps up current if it has less windings.

But a dielectric transformer,
a resonant transformer,
Works different. It follows the inverse logic of the dielectric field.

I really like the concept of the a-symetric capacitor. where the dielectric lines of force are more concentrated on the smaller plate.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 23rd, 2019, 12:17 PM
And I made another L2 (or L1) coil.
now I have 4 equal coils amd one "smaller"

this is for the dual setup.
2 drive circuits, 2x L1 2x L2 and 1 L3 im the middle, that will recieve impulses from both sides (from both L2's).

The impulses will alternate, one on each maximum.

but I explained this before. no need to repeat myself
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 25th, 2019, 08:44 AM
My SiC mosfet has fused together with the heatsink/fan...

I used thermal paste, and there was a biy left over from the other mosfet when I aplied it

I guess, they mixed and under the heat, formed a kind of ceramic glue...

I wanted to replace it with a irfp460A

But Since I am now stuck with it, I will remove the irfp460 from the other heat sink and put another SiC in there.

that would leave me with 2 SiC c2m0160120 mosfets, instead of 2 irfp460..

I does require 20V at the gate instead of 14, so I first need to adjust both gate drivers...
This would result in 1200V impulse capabilities.

Or... I just order another heatsink for the irfp460
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 25th, 2019, 09:02 AM
Had an irfp460 on an old heat sink...
will need to do for now, could even put a fan on it with some creativity (plenty of that)
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 25th, 2019, 11:44 AM
I ripped the broken fan oit of the heatsink frame and hotglued a new fan in.
 :D
Title: dual setup
Post by: evostars on June 25th, 2019, 12:26 PM
dual setup first test, and it works.
not properly tuned, but lamp already burns

I labeled the coils in the photo (click it)
Title: achievement
Post by: evostars on June 25th, 2019, 12:46 PM
It is sooooo cool to see this dual setup working!!!
 :cool:
This has always been in the back of my mind for years now.
 :clap2:

I remember thinking:
" if a tesla coil has a strong dielectric (resonant) field, then 2 tesla coils, out of phase, should have a dielectric field between them that alternates strongly. What If you put a coil between those to dynamic dielectric fields?" .

But at the time, I didn't know how to make it work, how to get them tuned, and out of phase.
And ... I didn't know about the impulses.

I have learned SO MUCH :yoda:

I even got the coils right, one system is out of phase, so I reversed one set of L1 L2 (close coupled, L1 outside, L2 facing the single L3) coils.

Now its first time, to tune both the L2 coils, to the same resonant frequency, by tuning one of the series resonant capacitors. They are slighly out of tune now. not much...
Frequency is also to high 108kHz. Dont want to get sick again. the series resonant cap is now 33nF, probably will make it 60nF, and tune from there on.

Title: 2 kinds of electricity
Post by: evostars on June 26th, 2019, 09:32 AM
What has become clear, by analysing sparks, is there are 2 kinds of electricity.
One looks like the erratic blue violet spark, destructive/hot in nature and deflected by magnetic fields
one looks like a gaseous white flame, non destructive aka Radiant electricity, not deflected by magnetic fields.

The negative back emf looks to be the pure white flame energy, without the purple blue energy.
I showed this in the discharge video, posted in the comments here.

I have ordered a step up transformer, to make it discharge more visible, but I have strong doubts the white flame radiant electricity will be stepped up, as it is not deflected by the magnetic field, and a step up transformer, is based on the magnetic field induction.

What I have been doing, is powering the series resonant coil, from the regular (mixed) electricity,
And feeding it with negative back emf impulses, aka radiant electricity. 

I have been wondering about how these 2 mix the best.
I have seen the benefits, of increased voltage and increased current in the series resonant coil, when the impulse is fed into it.

I wonder, If the mix balance is best, wouldn't that change the impulse? make it faster? (seen that) make it more or less negative?
But most of all, would it increase the series resonant current to its maximum?

Also, if the mix is Ideal, the longitudinal pressure from the coil would be maximum.

I have been looking at voltage differences over the series resonant coil, but,
 we are dealing with 2 different KINDS of voltages
one "regular" one "radiant"
one white gaseous,
one purple blue erratic.

I keep thinking there should be an ideal mix of these 2, resulting in maximum longitudinal pressure.
Simple voltage differnce isn't enough.

The resonant voltage on one side of the coil, (can be positive or negative, depending on tuning)
The negative impulse voltage on the other side of the coil.

hmmm....
maximum current... is measurable.

Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on June 26th, 2019, 12:08 PM
Awesome, that's some impressive benching you got going there :thumbsup2:
Title: Re: achievement
Post by: haxar on June 26th, 2019, 01:56 PM
Quote from evostars on June 25th, 12:46 PM
I remember thinking:
" if a tesla coil has a strong dielectric (resonant) field, then 2 tesla coils, out of phase, should have a dielectric field between them that alternates strongly. What If you put a coil between those to dynamic dielectric fields?" .

But at the time, I didn't know how to make it work, how to get them tuned, and out of phase.
And ... I didn't know about the impulses.
Phases only relate to an alternating or direct current TEM wave, while electrostatic impulse LMD waves do not have a phase relationship.

My hypothesis: This circuit utilizes a resonant alternating current TEM wave (preferably from a "resonant chamber" in the form of a long inductive wire that holds a lossless resonant magnetic field) to trigger LMD impulses off that resonant TEM wave.
Quote from evostars on June 26th, 09:32 AM
I have been looking at voltage differences over the series resonant coil, but,
 we are dealing with 2 different KINDS of voltages
one "regular" one "radiant"
one white gaseous,
one purple blue erratic.
(https://open-source-energy.org/?action=dlattach;topic=2785.0;attach=15314;image)(https://open-source-energy.org/?action=dlattach;topic=2785.0;attach=15314;image)
The only 2 different kinds of waves, known to exist in this universe.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 26th, 2019, 02:30 PM
Quote from haxar on June 26th, 01:56 PM
Phases only relate to an alternating or direct current TEM wave, while electrostatic impulse LMD waves do not have a phase relationship.

My hypothesis: This circuit utilizes a resonant alternating current TEM wave (preferably from a "resonant chamber" in the form of a long inductive wire that holds a lossless resonant magnetic field) to trigger LMD impulses off that resonant TEM wave.(https://open-source-energy.org/?action=dlattach;topic=2785.0;attach=15314;image)(https://open-source-energy.org/?action=dlattach;topic=2785.0;attach=15314;image)
The only 2 different kinds of waves, known to exist in this universe.
So I am combining the 2 waves,
combining TEM with longitudinal...
hmm I have to think about that, what is the result from that?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 26th, 2019, 02:31 PM
Quote from Lynx on June 26th, 12:08 PM
Awesome, that's some impressive benching you got going there :thumbsup2:
Thanks!
 ^-^
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Diplomacy on June 27th, 2019, 03:34 AM
Quote from evostars on June 26th, 02:30 PM
So I am combining the 2 waves,
combining TEM with longitudinal...
hmm I have to think about that, what is the result from that?
A vortex in the aether.
The two types of sparks you talk about are not two different kinds of electricity, but two methods by which it moves.
The aether behaves as an ideal gas, you can move it by force (blue sparks) and this method inherently uses a high heat and is entropic in nature no matter how this push is made, this mode is limited by thermodynamic laws as taught in schools.

The other type of spark is not created forcibly, it is an overflow, a local condition of abundance that is so strong it spills into the surrounding matter. To my knowledge the only way to do this is to create a vortex in the aether, I have learned several methods since we last spoke. Nested cylinders of 316l stainless, filled with water, with a positive voltage applied to the outer casing and negative to the centerpost as a drain creates a very strong vortex if properly constructed, putting two vortexes adjacent to each other mutually strengthens both vortexes according to the poster in the Tesla Turbine thread over on the other forum, next time I put my things together I will report results of coupling two of them.
A single cylinder constructed this way splits water efficiently and gets colder than ambient while doing so, but it requires the build up of a highly resistive coating on the stainless steel before it happens.

What all of these come down to is being able to make that overflow of energy and then having a machine that can draw on that flow.
Part of a machine for instance that was full of the compressed form of the aether that makes the cold sparks could use the area where the energy was being converted from cold to hot as a heat sink and get more amps on the hot side.

edit: I have seen several researchers claim that ambient energy likes load, which is yet again a higher concentration and/or hotter aether region flowing into an area with a lower aether concentration, anywhere it can dissipate its pressure. Creating pressure (voltage) for (nearly) free to sustain a vortex to draw flow (amperage) off of is the basic summary of this big discovery of the use of the fluid medium that Tesla reported.

Are you still using a power MOSFET as the substitute for the spark gap in your circuits? Is there a particular type or parameter I should be sorting by? I have been using old automotive ignition control modules in the analogous portion on the circuit I have been using to drive all my devices, but a good MOSFET will likely be able to handle higher frequencies?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 27th, 2019, 07:03 AM
Quote from Diplomacy on June 27th, 03:34 AM
A vortex in the aether.
The two types of sparks you talk about are not two different kinds of electricity, but two methods by which it moves.
The aether behaves as an ideal gas, you can move it by force (blue sparks) and this method inherently uses a high heat and is entropic in nature no matter how this push is made, this mode is limited by thermodynamic laws as taught in schools.

The other type of spark is not created forcibly, it is an overflow, a local condition of abundance that is so strong it spills into the surrounding matter. To my knowledge the only way to do this is to create a vortex in the aether, I have learned several methods since we last spoke. Nested cylinders of 316l stainless, filled with water, with a positive voltage applied to the outer casing and negative to the centerpost as a drain creates a very strong vortex if properly constructed, putting two vortexes adjacent to each other mutually strengthens both vortexes according to the poster in the Tesla Turbine thread over on the other forum, next time I put my things together I will report results of coupling two of them.
A single cylinder constructed this way splits water efficiently and gets colder than ambient while doing so, but it requires the build up of a highly resistive coating on the stainless steel before it happens.

What all of these come down to is being able to make that overflow of energy and then having a machine that can draw on that flow.
Part of a machine for instance that was full of the compressed form of the aether that makes the cold sparks could use the area where the energy was being converted from cold to hot as a heat sink and get more amps on the hot side.

edit: I have seen several researchers claim that ambient energy likes load, which is yet again a higher concentration and/or hotter aether region flowing into an area with a lower aether concentration, anywhere it can dissipate its pressure. Creating pressure (voltage) for (nearly) free to sustain a vortex to draw flow (amperage) off of is the basic summary of this big discovery of the use of the fluid medium that Tesla reported.

Are you still using a power MOSFET as the substitute for the spark gap in your circuits? Is there a particular type or parameter I should be sorting by? I have been using old automotive ignition control modules in the analogous portion on the circuit I have been using to drive all my devices, but a good MOSFET will likely be able to handle higher frequencies?
when did we last speak? Can't remember?
Yes, a Mosfet is a more fast acting switch. look for SiC mosfets, with high drain source voltage, and low drain source resistance.  A proper mosfet driver is needed (to switch high side).
I use the mosfet, to switch a coil on the high side (V+ is switched, not ground) to produce negative back EMF, this is the other electricity kind, that is white gaseous.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 27th, 2019, 11:17 AM
" it likes a load"
Yes, i heard E Dollard say the same.
"something to work into"

So testing a unloaded L2 makes no sense,
It needs something to work into.
aka the untuned L3 with a parallel resistive load.

Then measure the current in L3 (or brightness of a lamp)

But... as I am changing frequency (by changing series cap with my new board).

The power consumption changes, as the back emf becomes bigger with lower frequencies, and thus needs to be retuned.
there are so many variables and question marks.
...

but its clear I need a load. ok.
but power out vs in is hard to determine.
both change. simple brightness doesnt cut it. L3 current also is hard, as the current clamp isnt precise, it changes when I move its position.

One thing I have done is keep the impulse at the same voltage...
lower frequency, takes less power for equal pulse voltage.

F@ck
Sometimes I feel as if people are watching over my shoulder, and I feel As if I'm being stupid. because I dont get it.
but its my own judgemental mind judging me....

How can it be, that L3 produces power? in phase voltage and current,  by being coupled with a series resonant (out of phase current and voltage) L2.

L2 should NOT have ANY power.
what does this impulse do? to provide power to L2/L3?

Is it a longitudinal pressure wave?
Or is it something else?

is the negative back emf radiant voltage providing power/force to the resonant voltage?

Is impulse duration really important? should it be less then 1uS? (pretty sure it should be short)

questions....

One thing is sure...

I really need a 4 channel scope.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 27th, 2019, 11:21 AM
if TEM is mixed with longitudinal waves...

TEM are slower (lightspeed)
longitudinal is faster (than lightspeed)

how can they mix when the speeds don't match?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: haxar on June 27th, 2019, 12:54 PM
Quote from evostars on June 27th, 11:21 AM
if TEM is mixed with longitudinal waves...

TEM are slower (lightspeed)
longitudinal is faster (than lightspeed)

how can they mix when the speeds don't match?
Example:
Quote from Newfile8.jpeg
(https://open-source-energy.org/?action=dlattach;topic=3424.0;attach=21272;image)(https://open-source-energy.org/?action=dlattach;topic=3424.0;attach=21272;image)
The blip on the blue trace, which is the LMD impulse, is faster than the yellow trace of an alternating current TEM wave.

The circuit triggers an LMD impulse right after the positive peak of the slower TEM wave. (Nelson "crypticly" said this before, but is better understood this way with the differing wave types.)
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 27th, 2019, 02:16 PM
Quote from haxar on June 27th, 12:54 PM
The circuit triggers an LMD impulse right after the positive peak of the slower TEM wave.
No the circuit doesn't trigger it

the impulse IS the back emf of L1, being fed into L2

the question is how/when do the positive resonant voltage and the negative impulse mix best?

When does it give max power?

when does it produce the maximum longitudinal wave from Bifilar L2?

It apears this needs to be balanced (the 2 different quality voltages on both ends of L2) , for max result.

But how can we measure/see the max result?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 27th, 2019, 04:55 PM
Thinking of the fused SiC mosfet (to the heasink) I tend to see it as a sign.

the mosfet is capable of (at least) handling a -1200V back emf.

Until now I used a max of - 600V impulses.

These SiC mosfets would double the negative voltage impulses.

my caps can handle it (dc offset).

Maybe, I'm just below the voltage threshold...
Title: inverse relationship, impulse and series resonance frequency
Post by: evostars on June 28th, 2019, 12:35 PM
If I add capacitance to the series resonant L2 tuning cap,
I lower the frequency.
The resonant voltage/current becomes smaller
And the impulse voltage becomes greater.
Less voltage and more current is needed from the DC input to generate the maximum impulse

If I make the series resonant capacitance smaller,
the frequency rises,
The resonant voltage/current becomes bigger (hmm is that right?)
And the impulse voltage becomes smaller.
More voltage and less current of the DC input is needed, to get the maximum impulse

Somewhere, there is an Ideal, impulse voltage and series resonant voltage current.
Giving both maximum impulse voltage, and resonant voltage/current.

Minimum impulse duration should be tuned by the parallel capacitor over L1. fast, without hickups. now using 660pF
Title: SiC gate drivers
Post by: evostars on June 29th, 2019, 02:53 AM
I have decided to make 2 new gate drivers for the wolfspeed/cree SiC mosfets. they need 20V gate to source voltage

I hope to make it with the 12 to 15 volt 2A isolated boost converters I already have.
I noticed I can vary the output by the input voltage. Not sure If it can handle 20V output. Would be nice if it worked.
We'll see.

I could place 2 of the boosters in parallel, if the power isn't enough

15.5V input gives 20V output, with a 1K load. 20mA  it already gets warm... better look for other solution.

Solution: use battery on gate side
Sic data sheet 2m0160120d
https://www.mouser.com/ds/2/90/2m0160120d-838563.pdf
doesnt give a lot of gate voltage info...

gate source voltage max= 25V recommend =20V
2x 12V should work. put a 25V zener over it for protection.
or 12V+ 9v (several 9v parallel, with 12V series)
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on June 29th, 2019, 08:53 AM
Is there any such readily available high & low side gate driving IC circuit which has it all, including say 20V fully isolated power output for gate control purposes?
It is 2019 after all, so combining the two (DC/DC converter and high/low side gate driver) shouldn't be all that hard to put together.
Or so one might think anyway.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 29th, 2019, 12:31 PM
Quote from Lynx on June 29th, 08:53 AM
Is there any such readily available high & low side gate driving IC circuit which has it all, including say 20V fully isolated power output for gate control purposes?
It is 2019 after all, so combining the two (DC/DC converter and high/low side gate driver) shouldn't be all that hard to put together.
Or so one might think anyway.
maybe google knows :D
matt has a great driver, and there are developers boards that might do the trick.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 29th, 2019, 12:38 PM
thinking how I could use a setup up (im) pulse transformer, like a ignition coil (but based on faster ferrite)

I came up with this.

instead of using a single L1 to produce impulses,
I use a tranformer.

the secondary output (giving the stepped up impulse) is connected with a slow diode.

the diode must be fast enough for the series resonant L2 to work (100kHz), but slow enough, to block the impulse of the primary(1mHz or more).

the secondary HV impulse than can find its way through the series resonant coil (to V+ that acts as ground)

This way I would get a higher voltage impulse, through the coil.

Probably wont work, but easy to build and try
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 29th, 2019, 03:49 PM
I have recieved nice Sic mosfets 160mOhm 1200V
2m0160120d
https://www.mouser.com/ds/2/90/2m0160120d-838563.pdf

the gate needs - 5 to 20V with 25v max

I want to use batteries to power the (isolated) gate.

with 2x 12V battery, i get 26.8V max.

I want to use a negative offset,
is there a trick for this?
I have no idea how much current the gate will need, thats why I doubt over a voltage divider resistor...

Any ideas anyone?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on June 29th, 2019, 04:39 PM
I'm mostly thinking of 2 progressions:
bigger voltage impulse
and
the use of a ferrite or perovskite layer on one side of the coil to make the longitudinal push from the impulse, only into one direction (one side of the pancake).
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 1st, 2019, 01:04 AM
I've been thinking about stepping up the impulse voltage.
I'm now working with - 600V 700nS max
I could double the voltage with the SiC mosfet to -1200V
but...
What about stepping it up to -15000V?
-15kV can be done.

I mean... it could work, 1200v and it would prove it would work.

but I rather do it proper, to really push over the threshold in a single effort...
not wasting a lot if time... and energy. on something amazing that would need improvement again, to become really usefull.

let's really kick some longitudinal ass
and step it up. So we can drive a motor if it works
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 1st, 2019, 10:31 AM
I could use a second mosfet to trigger a stepup transformer, so its synced to the series resonant  coil.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 1st, 2019, 03:42 PM


https://youtu.be/2kHLG21mrvM
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 2nd, 2019, 04:19 PM
I saw SiC mosfets that can handle 6.5kV or even more.
I guess they will have high resistance
not sure. but SiC IGBT might be interesting to look at.

any body know one with low resistance(leas than 0.5 ohm, and high frequency (70kHz) capabilities?

Other thing I noticed was:
how about using the 1200V SiC mosfets,
but with a smaller coil, so the push would be relatively bigger. (to the coil surface area).

I made my coils bigger, with thicker wire. resulting in High Q (low resistance) and high capacitance.

But bigger coils need bigger impulses to push longitudinal waves.


Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 3rd, 2019, 03:25 AM
4,5kV IGBT:
https://www.littelfuse.com/~/media/electronics/datasheets/discrete_igbts/littelfuse_discrete_igbts_xpt_ixyl60n450_datasheet.pdf.pdf

https://www.digikey.nl/product-detail/nl/ixys/IXYL60N450/IXYL60N450-ND/5638283

85 euro per piece... damn better make sure it would work...

First see if SiC mosfet 1200V works

more IXYS IGBT's 4,5kV:

https://www.littelfuse.com/products/power-semiconductors/discrete-igbts/npt/very-high-voltage/ixel40n400.aspx

https://www.littelfuse.com/products/power-semiconductors/discrete-igbts/xpt/high-voltage.aspx
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on July 3rd, 2019, 06:28 AM
I saw that Mouser also has LSIC1MO120E0080 to offer, SIC mosfet N-channel, 1200V, 80 mOhm, TO247, 39A with fairly decent rise/fall times 10/6 ns, at OK tinkering-with-and-frying prices.

But I agree, 85€ is really not an option unless you know it works :fear:
Title: the art of stepup
Post by: evostars on July 3rd, 2019, 08:12 AM
made a step up transformer from a ferrite ring core I still had.
FT-240-43 u=850 AL1075
was the code for the ring

don't know if it is suited gor 70kHz.

first made 12 thick copper windings as primary, and tested. gave sub uS spikes at 70kHz.

then took 9.5meter 0.4mm wire for approx 180 windings on the secondary.

but this caused the primary to start ringing. I tried to create a spark, and it worked only around 20kHz. with 16V dc input.

need to hook it up so it can work into a coil.

Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 3rd, 2019, 08:13 AM
Quote from Lynx on July 3rd, 06:28 AM
I saw that Mouser also has LSIC1MO120E0080 to offer, SIC mosfet N-channel, 1200V, 80 mOhm, TO247, 39A with fairly decent rise/fall times 10/6 ns, at OK tinkering-with-and-frying prices.

But I agree, 85€ is really not an option unless you know it works :fear:
Thanks.
yes... crazy prices..
Title: cool caps. 2000V while rated 400v
Post by: evostars on July 3rd, 2019, 08:19 AM
also set up the health configuration. with the bigger secondary.
113nF series resonant cap
20nF parallel output cap
43.76 kHz
900nS - 660V impulse.
series resonant is 376V peak to peak.
parallel resonant is off scale I guess 2000V peak to peak.

parallel tunes with 2x 10nF wima FKP1 rated at 630V dc and 400V ac.
they stay cold, in tune and make no sound.
rather cool. since they are handling 2kV at 43.76kHz
Title: one side hot
Post by: evostars on July 3rd, 2019, 09:58 AM
When testing the step up transformer,
I switched the primary on the high side, producing a negative spike.

The secondary was not grounded, I let both ends short out via the sparkgap.
I noticed one end becoming redhot, and the other end not.

I assumed the redhot side, was the positive, so I grounded it, and did a few more tests. this time, nothing got red hot.

the ringing on the primary, only occured when ther was no spark. once a spark was visible, the primary showed a single spike.
So, It still might work on higher frequencies, as long as the secondary is grounded on one side, and the other end of the secondary, will pass through the series resonant coil to ground. (ground will be V+).

The question is, how to connect the secondary, without shorting things out. I might need a cap
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 3rd, 2019, 10:07 AM
secondary of left step up transformer, is relative higher impedance then the L1 coil on the right.
Both produce back emf, they mix.

I need to remove the dc offset parts, or else they will charge up to several KV which the caps cant handle.

A fast diode could fix that also.
make a barier between the kV impulse entry point, and the dc offset cap.
probably will need more than one diode in series, to handle the kV impulse

removing the dc offset also would not protect the mosfet from the kV impulse. the body diode avalanche mode would pass the impulse straight to V+

several ultra fast diodes in series should  work, to prevent the stepped up impulse from reaching the mosfets body diode
Title: insight: impulse amplifies current
Post by: evostars on July 4th, 2019, 07:01 AM
A impulse is a high change in voltage, in a very small amount of time.
1000V in 1uS or less.

The time the impulse is injected in the series resonant bifilar pancake coil,
Is at the maximum voltage. which is when the magnetic field strength is zero.

But the change in magnetic field strength is maximum.
It is as if the Aether that forms the magnetic field, is a vortex (on both sides of the coil) that collapses, and then re appears but now its counter rotating.
The impulse happens at the peak of the collapse, when the current is zero but the aether field is moving very hard,

So there is no magnetic field at the time of the impulse.

The voltage is at its maximum. the change in voltage is zero, the dielectric field is at its strongest.

That's when we introduce a rapid change in voltage. this translates, to a very high current.

This results in a extra strong swing of the magnetic field, and it is amplified by this action. It is getting a Kick right at the best moment.

Or... just after the peak, just like with a swing. We dont push at the highest dead point. we push just after it, when the movement downwards is starting again.

So the impulse amplifies the current.

But... If the impulse is powerfull enough, meaning, high enough voltage, and short enough duration, the magnetic field is simply to slow in its build up. And the dielectric field that represents this change in voltage, will create a longitudinal Aether movement, that is related to the ring vortex.

This ring vortex, is captured by a second coil (L3 output), that has a large load, where this immense energy can work into.
the load transmuted the energy into heat and light or whatever (water into H2 and O2, after being rectified).

So the impulse will need to work into  someting, else it simply wont work. the impulse will not come through. it will ripple.

Another thing, is the DC ofset of the series resonant coil, in relation to the L3 coil, it will create a path for the longitudinal energy to follow.

in conclusion, if I slow down the impulse, I can amplify the magnetic field of the series resonant coil, this makes it possible to float a aluminium foil around 42kHz

If I make the impulse fast enough, the magnetic field is to slow to catch the large amount of energy, and  it will create a longitudinal aether pressure field (ring vortex). But only is it can work into a load.

This also indicates, a lower frequency works best for longitudinal pressure. As the relative speed between the impulse and the magnetic field is bigger. The magnetic field is slower changing at lower frequencies, so the fast impulse, is much to fast to interact with the slow magnetic field vortex.

I will record this into VR to make it more clear in pictures.
Title: punch through
Post by: evostars on July 5th, 2019, 06:33 AM
I am playing with the health setup again, small L2 4 cm distanced to big L3.
Tuning L3 to L2.
I now have tuned it to 36kHz with L2 93nF
L3 is only 7.1 nF (tuned with my tuning board, steps of 100pF possible)

L3 is a octave higher then L2, and when I impulse L2, L3 will grow into a huge sine wave, one octave higher.
Very impressive to see. But, I will tune it again, to one octave lower, so it will match L2.
Title: smokey
Post by: evostars on July 6th, 2019, 12:30 PM
gate driver boost converter started smoking...
I inserted the diodes, 5x600V so it woupd hopefully block 3000V

I tested and it looked promising, good impulse.  went down in frequency, impulse became pretty big, but than amps went up, and the smoke come from the stepup circuit....
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 7th, 2019, 02:38 AM
Diplomacy
the vortex is the magnetic aether  field.
have you concidered the ring vortex?
it represents the radiant aether field (induced by impulses)

the impuls is like the tail on this picture. pushing inwards into the ring vortex, giving a result of resonance where current and votage are inphase. (i have experimentaly proven this in my radiant power video)

the ring vortex rotation direction is its polarity.

it grows and shrinks, then reverses and grows again, this time with its tail on the other side of the ring vortex. This time it sucks in from the ambient Aether.

The impulse needs to be powerfull enough. high enough voltage within less than 1 uS
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Diplomacy on July 7th, 2019, 02:53 AM
Quote from evostars on July 7th, 02:38 AM
the vortex is the magnetic aether  field.
have you concidered the ring vortex?
it represents the radiant aether field (induced by impulses)
Mapping a coil on the surface of exactly that shape with a phi ratio center hole was my next planned build, similar to the rodin coil.
Essentially the goal is to map the surface area of the torroid with minimum sharp turns, we are trying to make a waveguide for the aether to travel through creating as long as of a path as possible.

I disagree on the length of the pulse, I think it depends on how much the aether sticks to the load, the more the load has an affinity for holding the aether the slower pulse times that will exhibit odd effects, the really fast pulse times you are seeing required are because of making your coils with small diameter wire.

The problem is there are breakpoints for max voltage ratings, forward voltage drops and response times in all these electronics and then matching all of those to a coil set.

Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 7th, 2019, 03:03 AM
Ok let's agree to disagree on the impulse. I have seen its effects And know they are vital (also backed up with Tesla's lectures).

my wire diameter is 1.5mm2 and 2.5mm2
So you call that thin?

As this is my workbench, please put your own thoughts and experiments on another page/section of the forum, as I want to keep this workbench clear of it.

you are welcome to respond here but only if it is related to the contence of this workbench, which is based on impulse technology.

thank you
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Diplomacy on July 7th, 2019, 03:27 AM
Quote from evostars on July 7th, 03:03 AM
Ok let's agree to disagree on the impulse. I have seen its effects And know they are vital (also backed up with Tesla's lectures).

my wire diameter is 1.5mm2 and 2.5mm2
So you call that thin?

As this is my workbench, please put your own thoughts and experiments on another page/section of the forum, as I want to keep this workbench clear of it.

you are welcome to respond here but only if it is related to the contence of this workbench, which is based on impulse technology.

thank you
I apologize, I meant no disrespect.
I did not realize you were using such thick wires, the last video I watched fully you were using speaker wire (I am on a limited data connection and do not stream often).

By impulses are you referring to the turbine effect where sufficient speed (in this case sufficiently short pulse duration) causes that ring vortex pulse?
Kind looks like a jellyfish swimming, but it is the coils energizing that builds the potential.

I was not aware that Tesla reported a hard cap on the speed of the impulses required to obtain these effects, my understanding of the matter was that it was the combination of sufficiently fast impulse and sufficiently high voltage that allowed these flows to occur and that there is a range of times that can work if other conditions in the circuit are correct.

Is the 1 microsecond limit peak to peak or maximum rise time that allows such an effect?


Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 7th, 2019, 04:54 AM
Quote from Diplomacy on July 7th, 03:27 AM
I apologize, I meant no disrespect.
I did not realize you were using such thick wires, the last video I watched fully you were using speaker wire (I am on a limited data connection and do not stream often).

By impulses are you referring to the turbine effect where sufficient speed (in this case sufficiently short pulse duration) causes that ring vortex pulse?
Kind looks like a jellyfish swimming, but it is the coils energizing that builds the potential.

I was not aware that Tesla reported a hard cap on the speed of the impulses required to obtain these effects, my understanding of the matter was that it was the combination of sufficiently fast impulse and sufficiently high voltage that allowed these flows to occur and that there is a range of times that can work if other conditions in the circuit are correct.

Is the 1 microsecond limit peak to peak or maximum rise time that allows such an effect?
I'm sensitive about it, because many people have many opinions, and I don't want to get distracted (I am contacted by many) So I stick to experimental results.

I do use speaker wire. pure copper for low resistance, and there are many thicknesses. I used 0.75mm2 before (and it works). but now use 1,5mm2 12,5 meter, total 25 meter. for increased capcitance and inductance, with decreased resistance.

I'm not familiar with turbine effect.
the impulse gives a longitudinal push (like a tsunami)

I'm still looking into the impulse speed, I read abou the 1uS in " cold war technology", made a video series about that book.

peak to peak? there is only one peak, as it is unipolar.
I measure (in my setup I just tuned with 330pF) a 750nS period, where the impulse goes from 0volts to -650V to 0 volts
Title: repair the smoke
Post by: evostars on July 7th, 2019, 04:56 AM
Since I smoked one gate driver I will repair it and convert it to make a SiC mosfet work.
The smoke came from the boostconverter, and thats the part I needed to replace anyway.
So maybe its another "sign" a good luck accident?

The SiC gate needs 20V to source, and I will provide it with battery power.
Title: insight, impulse stutter
Post by: evostars on July 7th, 2019, 05:27 AM
I have noticed the impulse can be delayed, but also it can stutter, devide itself into multiplie smaller impulses that quickly repeat themselfs.

The impulse is the magnetic field energy of the coil that is switched off.

this energy is directed into the series resonant coil.

the series resonance provides a low impedance path to ground (v+)

It the series resonance isn't properly tuned in, the impulse energy has no where to flow into, it is stuck inside the coil, it starts oscillating and when positive it will pass through the body diode into v+ losing its power.

If the coil is properly tuned into series resonance, and injected at its maximum voltage peak, the impulse can flow through it.  creating a longitudinal pressure wave.
as explained before.

but if not properly tuned, the impulse will ripple

Title: gate driver fail
Post by: evostars on July 7th, 2019, 08:42 AM
I isolated the problem to the boost converter as I suspected. the primary is shorting out.
Will remove it, and replace it with batteries. 20V is needed to drive the 1200V SiC mosfets

I will use a 12V 7ah battery in series with 4 parallel 9V's making 21 V

Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Diplomacy on July 7th, 2019, 06:38 PM
Quote from evostars on July 7th, 04:54 AM
I do use speaker wire. pure copper for low resistance, and there are many thicknesses. I used 0.75mm2 before (and it works). but now use 1,5mm2 12,5 meter, total 25 meter. for increased capcitance and inductance, with decreased resistance.

I'm not familiar with turbine effect.
the impulse gives a longitudinal push (like a tsunami)

I'm still looking into the impulse speed, I read abou the 1uS in " cold war technology", made a video series about that book.

peak to peak? there is only one peak, as it is unipolar.
I measure (in my setup I just tuned with 330pF) a 750nS period, where the impulse goes from 0volts to -650V to 0 volts
I meant which way were you measuring the 1 microsecond time, you seem to be meaning that the time of the voltage rise has to be less than 1us, not the duration from pulse to pulse, thanks for clarification.

The turbine effect has to do with some of the replications of Tesla's boundary layer turbine, I have seen a few videos of people displaying an odd sound and massive acceleration after a point (usually in the tens of thousands of rpms, lower for broader turbine blades) so they can do something very similar to your work where a fairly small input brings the turbine up to a speed where there is a sudden disproportionate voltage/pressure rise.

I think the transition point is when it goes from merely being a spinning fluid (whether air or aether) to this vortex effect.

I bring this up, not to distract from your work, but to present a slower speed example of the same phenomena in a fluid of differing density.

https://youtu.be/XVW44ZZa62Q?t=67

I would compare the portion before the jump to pulses too slow to achieve the effect you are creating, they still accelerate the system, but nothing too exotic.

At about 1:42 in the video the air powered Tesla turbine crosses the 50,000 rpm mark and suddenly accelerates by more than ten thousand rpms in a very short span.

I think this is the same fluid dynamic effect your hairpin circuit is causing, but you are doing this with a much more tenuous fluid than air so the cycle times have to be all the faster.

This suggests to me that the turn-on delay and the rise time of the MOSFET are the most important timing factors of a device using these principles. It is my hypothesis that a slower overall frequency might be fine so long as the rise time is still short enough and the pulses are kept sharp enough. I think the duration required is inversely proportional to the mass, where a larger mass can have a longer pulse rise time and still get the desirable effect.

I have found your posts very helpful, thank you.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 9th, 2019, 06:51 AM
thank you Diplomacy for reminding me of the Tesla turbine.

I have been intrigued by that patent/device.
It shows resemblance with the stacked pancake coils.
I have wondered about the connection between the turbine and the pancake coils.

also because there are 2 patents for the same basic device. one patent is the turbine, the other patent is the generator.

Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 9th, 2019, 06:55 AM
The new  batteries are charging.
4x 8.4V (parallel) and 1x 12V
making around 21V for the SiC gate driver.

1200V impulses... wonder how that is going to turn out. don't even have a decent probe for those voltages.

connected the batteries to the gate driver.
I measure 23.45V dc. that should work fine.
but a zener for protection of the isolated gate driver IC might be needed.

the Ni-MH 9v batteries are charged to 10V
but they are labeled 8.4V 270mAh
that cant be right.. can it?

I can now start testing with the 1200V SiC mosfet
 :clap2:
Title: Longitudinal waves confirmed
Post by: evostars on July 9th, 2019, 03:41 PM
Mark S used to work at Berkeley University particle accelerator.

We have been in contact via my YouTube channel.

he has replicated my radiant power circuit,
and made a faraday cage around L3.

He confirmed the energy passed through the faraday cage.
This is great news.

see attached screen shot.
the full message can be found in the comment section of my  radiant power video

this opens the door to (very efficient) longitudinal Radio
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: namirha on July 9th, 2019, 11:49 PM
Quote from Diplomacy on July 7th, 06:38 PM
...https://youtu.be/XVW44ZZa62Q

I would compare the portion before the jump to pulses too slow to achieve the effect you are creating, they still accelerate the system, but nothing too exotic.

At about 1:42 in the video the air powered Tesla turbine crosses the 50,000 rpm mark and suddenly accelerates by more than ten thousand rpms in a very short span.
GOLDEN RATIO

PHIve

5

https://open-source-energy.org/?topic=3005.0
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Belfior on July 10th, 2019, 03:24 AM
Quote from evostars on July 9th, 03:41 PM
Mark S used to work at Berkeley University particle accelerator.

We have been in contact via my YouTube channel.

he has replicated my radiant power circuit,
and made a faraday cage around L3.

He confirmed the energy passed through the faraday cage.
This is great news.

see attached screen shot.
the full message can be found in the comment section of my  radiant power video

this opens the door to (very efficient) longitudinal Radio
So you think  the frequency is higher than the cage can catch or you are passing an impulse through the cage? I think Old Scientist in YT had similar tests.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 11th, 2019, 01:58 PM
Quote from Belfior on July 10th, 03:24 AM
So you think  the frequency is higher than the cage can catch or you are passing an impulse through the cage? I think Old Scientist in YT had similar tests.
Old scientist, never used impulses.

It seems the longitudinal pressure has no interaction with anything, except a high impedance resonant coil, where the pressure can be " worked into".

It isn't transverse, its like giving a broomstick a push along the direction of its axis. "instant action at a distance"
The dielectric lines of force are connected between the resonant coils, and is the broomstick that gets the push from the impulse.
Title: -1200V 500nS impulses from SiC mosfet
Post by: evostars on July 13th, 2019, 11:49 AM
Wow.
I tested the SiC mosfet. didn't disappoint.
-1200V impulses 500nS duration at 101kHz.

My probe is 10:1 so the signal didn't fit on screen (80V max, +40V and -40V). I set the zero point on +80V (above screen)
The impulses reached the bottom of the screen, reaching the -40, so total of 120V x10= -1200V

Very impressive.
 And dangerous. :hide:
As the 2uF caps now also charge to 1200V. (I used 2 mur1660CT diodes in series, when I build the circuit)
That is a lot of energy.
 I DO NOT want to get zapped by that.
1,44 joule... that will hurt...
 :emperor:

I need to build some safety points into this circuit.
Also need to be able to add more caps to tune L2

I had the L3 coil unloaded on top of L2 with 25nF parallel tuned. didn't look at the voltage, but that must have been pretty impressive also.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Belfior on July 14th, 2019, 01:31 PM
Quote from evostars on July 11th, 01:58 PM
Old scientist, never used impulses.

It seems the longitudinal pressure has no interaction with anything, except a high impedance resonant coil, where the pressure can be " worked into".

It isn't transverse, its like giving a broomstick a push along the direction of its axis. "instant action at a distance"
The dielectric lines of force are connected between the resonant coils, and is the broomstick that gets the push from the impulse.
If there is no interaction with anything but the coil, is this the methods Tesla used to transmit energy?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: haxar on July 14th, 2019, 09:36 PM
Quote from Belfior on July 14th, 01:31 PM
If there is no interaction with anything but the coil, is this the methods Tesla used to transmit energy?
Yes. LMD waves pass through a Faraday cage.

A Faraday cage can only shield against TEM waves.
Title: longitudinal magneto dielectric resonance
Post by: evostars on July 15th, 2019, 03:23 AM
there are apparently 2 kinds of resonance.
1 is transverse Elctro magnetic. With current and voltage out of phase (no power)

the other is longitudinal magneto dielectric (As Eric Dollard called it) with current and voltage in phase (power)
Title: anomaly: Fan drops in speed
Post by: evostars on July 15th, 2019, 08:44 AM
I'm playing around with the SiC mosfet, and something is bothering me.
I also happens with the irfp460 mosfets.

When I dial in a frequency (that lights the bulb on L3) the cooling fan of the mosfets drops in RPM.

The fan is powered by 12V, generated by a buck converter from the supplied DC power.
The buck converter doesnt drop in voltage, it is set to 12V and stays there.
The only other power drain is the 5V input of the isolated gate driver IC (12v converted to 5V). Which almost doesn't draw power. it does show a slight drop in voltage, but something like 4,97V to 4,85V (from memory) just a slight drop.

Why is the fan speed dropping, at these specific frequencies?
 
It's a strange anomaly that I can't answer.
Title: insight. how to impulse the resonant coil (which side)
Post by: evostars on July 15th, 2019, 10:47 AM
I realised something important.
I played with the resonant L2 coil, and how its setup.
What I tried is 2 things.
1: impulse and resonant sine on the same side (inside rim) of the bifilar coil. outside rim doesn't change voltage
2: impulse on one side (outside rim) and resonant sine, on the inside rim.  both sides change voltage.

First I worked with 1 then I thought 2 is better. but it isn't.
the 1 is best. both impulse and sine on inside rim. outside rim not changing.
I will need to make another circuit board and design it this way, so the tuning caps are on the other side.

edit:
 maybe just another brain fart. both setups change polarity, important to understand is the dielectric field strength and polarity, comes from voltage difference over both ends of the coil.
With that in mind, since the coils are stacked, It makes sense to keep the changing voltage on one side of the coil, while the other end is stable in voltage (positive dc offset). so setup 1 it is.

this way the L2 facing L3 is changing voltage. the dielectric field of L2 is coupled with the dielectric field of L3. so when L2 changes by the impulse, L3 "feels" it directly

Also... VR is finally working again, I now can record proper videos in VR to explain into detail how these field dynamics work. This is also the reason of the insight. Seeing the fields in 3d really has opened my eyes. I hope the videos will open many more eyes.

reply 187  page 8... man this is becoming a long list. Glad I placed some important notes on different topics (health benefits page).

Title: designing new circuit board
Post by: evostars on July 16th, 2019, 04:37 AM
I will use the 1200V SiC diodes on this board.
layout is placing the tuning caps on the impulse side.

also made the dc offset cap triple in size, I noticed the dc voltage fluctuated to much. Now its as large as the other. 2uF (3x 680nF)
Title: teflon silver coated copper wire, for impulse path
Post by: evostars on July 16th, 2019, 10:40 AM
title says all
Title: almost finished
Post by: evostars on July 16th, 2019, 02:21 PM
only need safety discharge points for the caps

You can see some extra caps.
The dc offset cap was a single 680nF, but I noticed the dc voltage went up and down, so I tripled it to 2uF.

Title: unbalanced capacitor plates
Post by: evostars on July 16th, 2019, 04:55 PM
Im still playing with thomas townsend browns remark, of the capacitor plates needing to be unbalanced. one big, one small plate. together making one cap.
and the force acting towards the smaller plate.

the 2 windings of the bifilar coil act as the plates. changing one winding in size doesn't make sense.
But changing the voltage on one side does make sense.

the dielectric field lines of force are between the windings due to the voltage difference between them.

When resonant, with one end grounded, only one side of the coil, the other windig, is changing polarity. (sine wave).

the impulse creates a unipolar change in the dielectric field, if the voltage is negative enough.

now take in mind the L2 and L3 also are dielectricly coupled. (and out of phase)
So when the L2 is impulsed, on the side that is facing L3, the L3 coil notices the sudden change in the dielectric field, as it is connected to L2.

This is the longitudinal push that is able to move through a faraday cage.

Another thought that lingers, is, if the ground connection is being influenced. If the earth itself, as a dielctric field, is being influenced by these impulses
Title: first test successfull
Post by: evostars on July 17th, 2019, 02:17 AM
I tested the setup, and it works. I need to get used to this setup again, where the impulse enters the resonant sine wave at the same side of the coil (inside rim).

It is nice to have both sine and impulse together, as i now only need one probe to measure them both.

I Forgot, that the impulse won't drop below the dc offset base line. I need to think about that, understand it.

Most important, the resonant sine wave, now is amplified by the impulse, I'm getting much higher resonant voltages, basically double the impulse voltage. so, 1200V impulse=2400V peak to peak sine. (haven't tried it so high). The resonant currents, will also be high this way, as the voltage is transformed into current.

So to work with this setup, its really important to keep a load (L3+lamp) on L2.

The Fan still drops in power. maybe, this is due to a shortcut from the fan to the radiator, which is connected to the drain.
I really need to check this, and fix it. the DC supply (connected to drain) feeds my non isolated buck converter, making 12V for the fan (and feeding 5V). somehow, the fan looses voltage, and drops in power. where is this voltage going?
Title: fluctuating ground voltage
Post by: evostars on July 17th, 2019, 12:23 PM
I measured ground, and I need to do it again.
because it fluctuated.
and not a little bit. like. 0.5V
but more like 50V (sine)
This is from memory (did a quick test before I had to leave).
 
If this is true, the explanation could be the inertia of the aether is being used to push against. and instead of the aether moving, with a steady solid ground voltage.

it is a steady solid aether, with a ground voltage that is being  moved.

This is brings back to mind, Nikola Tesla's biggest tower. that did the same.

If all this is true. than it makes sense to put a diode in the  path to the resonant coil that is being impulsed.
to stop the ground voltage from fluctuating. So the Aether will be put into motion.

This asks for a proper measurement.

edit : nope. false alarm. at time of impulse there is a 7v peak to peak ringing on the ground, but no 50V sine wave. this isn't unusual.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 17th, 2019, 01:18 PM
testing with new circuit.
l1(bottom) l2(middle) l3 (top) stacked with distance between them.

impulse is totally rippled.
22W input 28W bulp is pretty lit
39kHz  with 50nF on l2 and 23nf on L3

all coils equal size, 2x12.5m 1.5mm2 with center hole.

yellow = l2 voltage, ripple is back emf
blue is l3 voltage.
Title: poofff
Post by: evostars on July 21st, 2019, 06:17 AM
OOps :-/

I played with my new L1 coil (5mm silicone between windings),
coupled to L2, I was looking for the current reduction. already had, it, but tried a variance, and I know when the coil isn't tuned proper (and it wasn't) the negative back EMF comes out on the other side as a positive spike.

Since I had the voltage way up, the spikes where about -1100V 600nS

Tuning it down, suddenly the current draw of the power supply went up (4,5A) I switched it off, but was to late. I saw something in the back of my power supply spark and poof... just before I turned it off
Luckily it has 2 channels, and I will probably be able to fix it. :cleaning:

In the future, I will use a diode between the V+ and the circuit, so if a positive spike passes through the coil (while tuning) it won't enter into the power supply and blow it up... 2x mur1660CT in series to with stand the 1200V impulse possibility.

it happend, with the resonant side of L2 facing the impulse side of L1 (close coupled). This did seem to work. before I had L1 impulse side facing outwards (ground facing L2). this already gave good current reduction. only 0.3A at 32V while still having huge(1000V roughly) impulses, and resonant L2.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 21st, 2019, 06:38 AM
I found the part already, A SMD capacitor between V+ and ground (inside power supply) blew up. This confirms my idea of having positive impulses entering the power supply. the capacitor was probably rated at 100V or less, and had to deal with the 1000V spikes and blew up.

Luckily the power supply still works.

The cap probably was to capture noise and ground it away. I could replace it, but won't ddo'nt have the smd part, I would need to take apart...   and probably there wont be no difference. if so I could still use the first channel.

But A 1200V blocking diode between V+ and circuit, is definitely needed, to prevent the positive impulses ruining the power supply.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 22nd, 2019, 07:08 AM
Hmm power supply works, but circuit doesnt.
If I turn the square wave feeding the mosfet, on, the amps jump high.
must be something wrong with the gate drive circuit.
back to the work bench.

I just wanted to check out my 2 2.5mm2 coils, and see how low the impulse duration gets with these coils (lower than 450nS that I already got)

it seems like the mosfet can be turned on and off by the switch giving the 50%duty square wave.
but once its on, it should be turned off by the 50% duty. but doesnt. very strange.
I made this conclusion as the current jumps high, as it would do with constont current to the l1 coil.

I should test without L1 coil, and measure the signal across it, see if it is pulsing
but then the mosfet has no ground at the source...
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on July 22nd, 2019, 11:05 AM
Quote from evostars on July 22nd, 07:08 AM
it seems like the mosfet can be turned on and off by the switch giving the 50%duty square wave.
but once its on, it should be turned off by the 50% duty. but doesnt. very strange.
I can't remember if you had a resistor between gate and source, otherwize try connecting say a 1M Ohm resistor between G - S and see what gives.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 22nd, 2019, 02:09 PM
found the problem, both 1200V SiC mosfets are toast. both dead shorted out. going to replace them with the mur1660CT (2 in series).
 but, still dont see how it creates a short cut when the mosfet turns on. need to check the caps
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 22nd, 2019, 02:19 PM
I took the diodes out, and checked them again,
I was a little confused, but they are 3 pin diodes, 2 channels, and only one channel shorts out (took the hit). So I can still use one half of the diode, as long as I cut the other leg off.
But they won't be used in this circuit, maybe for something else in the future. I'll just cut the bad leg off
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 23rd, 2019, 01:52 AM
I probabl shorted out the resonant cap, as I usually do when I work on the circuit, for safety. The diodes then short the signal to ground bypassing L1. This explains the high current.

I replaced the diodes, with 4 mur1660CT (2 in series for 1200V) and tested. It works,
I got 550nS -828V impulses at 50.19kHz
costing me only 0.31A 14,5V at the DC input.  (4.5W)

with the circuit idle (only fan is running and buck  converter): 0.15A
so 0.15A @ 14,5V=2.2Watt to produce these impulses. very impressive.

I dropped the frequency down to 41kHz, then for the same power, I got -1100V impulses.
amazing!

BUT
No series resonant L2 coil. this is strange, dont know why it isn't resonant I went up to 275kHz ans still saw no sine (tuned with 50nF).
I placed 2 mur460 diodes in series between the V+ and the large 2uF cap (in series with the L2)
this shouldn't kill the resonance... must be someting else, frequncy cant be that high. altough I use very small coil. but before it resonanted at 100kHz....

edit: Hmm, DC offset prevents diodes from opening. will need to place the diodes at V+, so C1 can connect to mosfet, and equalise the positive voltage.

SO if the L2 becomes resonant, the impedance will drop lower, and the impulse will be even faster...
Title: circuit repaired, back to research
Post by: evostars on July 23rd, 2019, 02:50 AM
Placed the 2 series MUR1660CT to V+ and everything is working again.
The diodes protected the power supply from to high positive impulses.
Right now the impulse is to fast to form a single impulse
 :(
Title: 125nS impulses achieved -540V @ 81kHz
Post by: evostars on July 24th, 2019, 08:54 PM
Its hot. 40C for several days. No airco. woke up around sun rise. Coolest of the day. Had some ideas floating, and decided to work at them.

Stacked the coils, close coupled. L3 in the middle. L1 on top, with the back emf side facing L3. L2 is facing L3 both with their resonant sides.

I used 1.63A 15.1V  DC  the powersupply acted up(unused channel giving out reading) when I grounded L3, so I removed the ground from L3 and placed it on L1 ground (V- was already grounded). Later on when I tuned L3 the power supply acted up again (I have seen this before, its not broken, seems to be from ground fluctuations).

L2 is tuned with 50nF (at L1 side on circuit)
L3 first is untuned. only loaded with a 28W halogen 230V lamp that lights up (no full brightness)

newfile 1 and 2(zoomed) show the 125nano second (!) -540V impulse. (10:1 voltage, probed at resonant inside rim L2)

newfile 3 shows L3=6nF on the blue second channel (10:1 voltage probed at resonant inside rim L3)

Very PROUD of achieving this fast impulse.
And something I hoped for, also showed up, a very fast ringing after the impulse.
It needs more calibrations, but its very nice to predict something and see it show up.
L3 still needs proper tuning...
But that for later. Sun is rising.
Title: 125nS in meters
Post by: evostars on July 24th, 2019, 09:00 PM
 in one nanosecond light travels about 0.3 meters or about 0.98 feet per nanosecond.

so during the 125nS  -540V impulse, light travels 35meter or 122.5‬feet

 :shocked:

Title: correction. not - 540V but - 1000v 125nS impulses
Post by: evostars on July 25th, 2019, 04:13 AM
newfile 1, two posts below, shows the impulse going off screen, so it wasn't - 540V more like - 1000V
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on July 25th, 2019, 06:08 AM
Tuning L3 with a parallel cap. might be wrong.
Parallel resonance draws high currents due to the high impedance.
this is not ok.

So I will keep L3 loaded, but untuned.

L3 in the middle is coupled to the magnetic field of L1 and the resonant voltage of L2 on the other side.

During the impulse, L3 experiences a strong change in voltage on both sides.
This mighy be compared with a changing position of the Bloch wall.
Nut sure. need more testing.

but much to hot. 40C
cold feet helps
Title: No more parallel resonance on the menu
Post by: evostars on July 28th, 2019, 07:18 AM
Until now I always made l3 parallel resonant.
the only way this works is without a extra load, like in the chair I made for health benefits.

It makes much more sense to tune L3 series resonant, with a capacitor between the coil and ground, like tesla showed in hia patents.

parallel resonance only creates a power draw from L2. It makes it a receptacle. but not a "giver"

And lets see what is possible with L3 not being resonant at all (but with a capacitor in series to ground.
Title: All kinds of strange phenomena
Post by: evostars on August 3rd, 2019, 02:56 AM
All kinds of strange phenomena are happening, when I turn it on...
only use 1 channel of my 2 channel power supply, both channels can give 32V 5A
the unused channel shows 45V :shocked:

The square wave generator resets.
 :shocked:
The impulse is completely gone, absorbed into the series resonant sine. it only shows up as a ripple riding on the sine

Lamp over parallel resonant (yes series didnt work out) goes very bright, but at the same time amps go way up also.

I took a small break from it all, and now this happens, need to read back and get the right setup again. 

or... something like that...

or... produce some video's to clear my mind, of all that I have learned. get a little more distance.
play with some magnets, thats always fun
Title: good vibrations
Post by: evostars on August 3rd, 2019, 11:04 AM
I changed the buck converter that limited my lowest voltage to 13.5V for a buck boost converter. now I can go as low as 5V and still provide the gate driver/fan with 12V.

much better
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 3rd, 2019, 11:16 AM
my square wave doesn't reset anymore, could have been bad powersupply contact.

the first unused channel of the dual power supply still produces voltage out of the blue. I measured it with a multimeter and its really there, but low amparage. voltage quickly drops by the meter.
maybe a cap is charged up from a rectifier connected to a mass, that swimgs (resonates) from the impulse waves. It only happens at one frequency around 65kHz.
for now I just ignore it. funny as it is.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 3rd, 2019, 02:05 PM
I will short the unused power supply channel out, so the caps of that channel wont over charge(i saw 45V for a 30v channel).

I'll keep the setting at zero volts naturally.

I'll also need to check metal object im the surrounding space for polarisation, it will be probably a lot more then expected...
could even try to rectify(fast diodes plus cap) it and light a LED.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 3rd, 2019, 02:51 PM
in this setup, the ultra fast impulse (less than 200nS -900V) is completely gone. only left is a ripple, on the series resonant L2.
L2 in this setup shows the greatest voltage rise, but at the same time this is also the setup with the greatest current draw.

DC: 1,88A at 13.0V  L2 is probed (10:1) on the inside at the resonant side, which is facing L1

L1 is switched on the top side, that is not facing L2. here is the impulse created (inductive spike).

This geometry makes a big difference. If the resonant sine is not facing L1, it is less powerfull, and also the current draw is less.
The side of L1 that is swithced also matters, when it is facing resonant L2 is is worse. I need to test all variants. But this one stood out, as the impulse is completely absorbed, and nly shows up as a ripple. In the end, I dont think this is the usefull setup.
We need the impulse. In this setup, the impulse is absorbed into the resonant L2.

I also did another test (no data) where I impulsed the coil, and probed a piece of metal half meter away. as expected the impulse showed up on the metal, as a 40V impulse, with a fast ring (plus and minus).

EDIT: I tried to replicate the test to see the result for all the different geometries. I noticed, a differnt result, and all the variations, didn't have variable results.
I conclude, I did this first test with opposing L1 and L2
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 4th, 2019, 04:19 PM
a plate with a series capacitor to ground, like im Tesla's radiant patents,
should capture the impulse from the L2 coil.

this could be a good indicator of longitudinal power

it should be able to power a small load/lamp
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 5th, 2019, 07:25 AM
I had 2 of these copper pcb's, I sprayed one of them with transparent paint. (without tape)

It will act as a single plate capacitor, jist like Tesla's patent below.

the isolated plate will charge up (connect with dielectric lines of force) from the radiant energy (ring vortex) created by the impulsed series resonant coil.

the single plate then will charge up a series connected capacitor that is grounded.

The voltage build up in the series connected  grounded capacitor, Will act as a indicator for the longitudinal field strength.

This way I have a measuring device.
Smaller capacitor will charge faster.
Title: New Circuit layout
Post by: evostars on August 6th, 2019, 03:23 AM
This is what I will be testing today.

I am very curious what yhe negative inductive spike will do.

Will it prefer the right path,
c2 L2 into a longitudinal Aether wave
or, will it prefer the left path,
C3 D2 and charge up C4 to be re used.

another exciting day of testing...
Title: impulse power
Post by: evostars on August 6th, 2019, 03:25 PM
first  test no success.
probably due to c4 being much much to large as well as c3. impulse vanished, and no dc voltage change, but lots of Ringing.


impulse insight :

the longitudinal push, needs to be quick enough, short in duration. to se the aether in motion. if its slow it will create a magnetic vortex (can also be usefull)

but the quiker the impulse (shorter duration) the higher the voltage needs to be. (to have impact energy)

therefore the coil producing the impulse needs a high enough induction.

the stronger the magnetic field,
the stronger the collapsing energy.
the stronger the impulse.

if it isn't strong enough, it can't push and will ripple

if the longitudinal wave can work into a load the impulse also wont ripple as the tranfer of longitudinal energy will be recieved into a "drain" the pressure can work into the load

its again the inverse logic of counter space
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 8th, 2019, 10:27 AM
make c4 smaller can be done, but I use more stuff for switching. like a 12v fan powered from a buck boost converter.

I should place that stuff (with latge caps) before the diode (directly to V+)
and after the diode, a much smaller cap, and see if that works (without all the oscillations).
@@@@@@@@@@@@@@@@@@
on another topic, I again looked at coupling L1 and L2 (no L3). all kinds of variations, still, one and the same result:
reduced current draw.
I fail to fully understand this.

and If L3 is put in the middle (close coupled) with a 28W lamp in parallel (no cap) it light up, with pretty good  efficiency (if tuned) thats also so weird.

I wanna explore this more. and simce l3 isn't resonant, also play with a distanced L3 coil (now used for L1).

then lower the frequency by making l2 caps bigger, and push more current and voltage through L1 to create a stronger impulse

Slow the impulse down if its to fast with a cap over L1...

Keep playing with these concepts until ita fully clear whats going on.
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: GreyWolf on August 9th, 2019, 04:19 PM
Hi if you want a higher pulse voltage across the mosfet why not cascade them to build up a high voltage pulse.
It is a very common practice.
Regards GW
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 10th, 2019, 02:08 AM
Quote from GreyWolf on August 9th, 04:19 PM
Hi if you want a higher pulse voltage across the mosfet why not cascade them to build up a high voltage pulse.
It is a very common practice.
Regards GW
Yes good idea,
but I wonder how to switch it, as I use a floating(on top of changing source voltage) gate driver.

fast turn off is essential for a good inductive spike.

can you maybe share a link to a good article about cascade gate driving?
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: GreyWolf on August 10th, 2019, 05:49 AM
TRY THIS
https://pdfs.semanticscholar.org/55e1/b9d916cc8282e52ba3c4414aab6d640d653c.pdf

How do you post a drawing
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 10th, 2019, 05:53 AM
Quote from GreyWolf on August 10th, 05:49 AM
TRY THIS
https://pdfs.semanticscholar.org/55e1/b9d916cc8282e52ba3c4414aab6d640d653c.pdf

How do you post a drawing
tnx

drawing: reply, and under it says
" attachmenta and other options"
click it
now you can attach a drawimg
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: Lynx on August 10th, 2019, 11:51 AM
Quote from GreyWolf on August 10th, 05:49 AM
https://pdfs.semanticscholar.org/55e1/b9d916cc8282e52ba3c4414aab6d640d653c.pdf
Very awesome, many thanks for sharing :thumbsup:
Title: no single impulse, still generates power
Post by: evostars on August 10th, 2019, 03:00 PM
I have based much on my theory on the impulse. but, the experiments show it isn't correct.
The inductive spike can ripple. loosing its single voltage, spread out over several ripples of lesser voltage.

I used higher resistance coils, which give a delay to the inductive spike duration. the magnetic discharge is held back. and not a single impulse but several smaller are made. even with the L2 series resonant coil fully uncoupled.

I did a test, with equal L1 L2 L3 coils.
L2 and L3 close coupled. resonant L2 side facing L3.
L3 is not tuned, and only parallel loaded with a 21W 12V light bulb (brightly lit).
L2 is series resonant tuned with 100nF at 41.87kHz
power consumed: 1.15A 19.7V dc =22.7W

Newfile 5 shows:
 yellow L2 resonant voltage 10:1 238V peak to peak
Blue: L2 current 100mV/A 5.56A peak to peak
voltage and current are 90 degrees out of phase(series resonant). There should be no power. but there is! WHY?
The impulse is not a single high voltage discharge, but several smaller voltage ripples.

Newfile 6 shows:(same setup)
yellow L3 voltage (outside grounded) 1:1 31V peak to peak
Blue shows L3 current 100mV/A 4.9A peak to peak
Voltage and current are IN PHASE there is power, the 21W light bulb is brightly lit
Quote
So, I conclude, a single impulse with high voltage isn't needed at all. a rippled inductive spike also works.
The question remains, why?
Why is the voltage and current in L3 in phase.
Why can a series resonant coil (L2) produce power, while the voltage and current are out of phase.

What is so different with this negative inductive spike from L1 (not coupled at all) that it can do this magic?
And how do we make use of this even more?
most important: It only works when the copper mass is equal. If I use a diffenrt mass copper for L3. it does not work.
A higher inductance L1 will produce a stronger inductive spike (at the cost of more current consumption).
But I already also learned, L1 is fed with current from series resonant L2 which delays its inductive spike, until the current in L2's series resonance is reduced, and L1 is allowed to collapse its magnetic field, creating a inductive spike, that is fed back into L2.

edit:
this is not giving more out than in. The loop should somewhere be open, to allow energy in, and I still think the single negative high voltgae fast impulse is key.

edit2:
comparing newfile 5 (L2 series resonant) newfile 6 (L3 output), that are taken from the smae system, with same reference (trigger= squarewave gen).
Current in L2 and L3 is equal and in phase.
Voltage in L2 and L3 is unequal and phase shifted.
Voltage is what is influenced, dielectric field is what is shifted.

When L3 current and voltage (in phase) are zero, L2 current is also zero (in phase with L3),
 L2 voltage is the only electric field energy present. So the energy of L3 (magnetic+ voltage) is alternating with the voltage of L2
Title: strong impulse generation coil, counterwound
Post by: evostars on August 11th, 2019, 07:14 AM
To generate a fast (short duration) high voltage impulse, a high inductance low capacitance low resistance  coil is needed.

The duration and voltage height of the of the impulse is determined by the capacitance, resistance and inductance of the coil, and the current and voltage that is put in. Along with the fastness of the opening switch, and the resistance it represents.
 
The inductance+ capacitance+ the resistance of the coil also determine its resonant frequency.  So to get a fast high voltage impulse, we need a high resonant frequency with high Q.
 Since inductance needs to be big, we need to make capacitance and resistance low. aka, thick copper wire (low resistance), and distanced windings (low capacitance)

We could even make the coil, counter wound, to get an even stronger impulse!!! It will not resonate at all, and the magnetic field strength is even stronger (at cost of higher current)

with a "counter wound coil", I mean a bifilar coil, with its series connection, from outside rim to outside rim, or inside rim to inside rim (not like tesla intended). This creates 2 counter acting magnetic fields from the 2 counter wound windings. and a low voltage difference between the windings (only between the beginning and end of the coil)

As with magnets, the opposing field (north north or south south) energy is much stronger, than the attracting (north south) energy.

I like this... I like this a lot!
lets test this one. very simple very easy... just one wire to reconnect
Title: monopole
Post by: evostars on August 11th, 2019, 08:09 AM
just tested the counter wound bifilar coil as L1, and it works. lower voltage needed, and naturally a higher current.

Magnetic field is south on both sides (or north if polarity is reversed).

If Ken Wheeler is right, the south pole is centripetal, a influwing vortex, north is a centrifugal outflowing vortex.
Both sides of the counterwound bifilar coil have a inflowing south vortex pole.
The north poles  are squashed in between the windings, and from what I have seen from the ferro cell, when two magnets are in opposition a new dielectric field is created in between them. so now we have a south pole vortex on each side of the pole and a dielectric field in between the windings.

Also could mean, with south on the inside, a inflowing dielectric field is generated bewtween the windings, and outlfowing north on each side...

the series connection can be chosen on the outside or inside rim of the bifilar coil. The voltage difference between the supplied voltage/current will create also a local dielectric field. but this one will probably neglect-able.

compass needle shows same poles on each side of the coil. at the outside rim, there the needle also deviates, showing a influx or out flux. interesting stuff...
.


Title: strong fast impulses
Post by: evostars on August 11th, 2019, 09:25 AM
With a opposing, counterwound bifilar coil (not like tesla intended) you can make strong fast impulses

opposing magnetic fields under a ferrocell viewer
watch from 4:44

   Secrets of Nature: Masses & Magnets do NOT mutually accelerate towards each other   (https://youtu.be/WkVC7lqc--0)
Title: bifilar coil, is series and parallel resonant at the same time
Post by: evostars on August 12th, 2019, 11:07 AM
Attached pictures explains all.
simultaneous parallel resonant AND series resonance
Title: Re: advancing the Solid state Tesla hairpin circuit
Post by: evostars on August 21st, 2019, 04:51 AM
I worked out several scripts for new videos and have started recording new video material (for my master ivo channel).

stepping back from the research was a good choice.
my mind is becoming clearer again, and I have better perspective on whats going on.

no promises, but I intend to make multiple videos, showing/explaining
the fields of the coil
the series resonant bifilar coil
the impulsed series resonant coil

 :D
Title: coloured in bifilar coil from patent 512340
Post by: evostars on August 24th, 2019, 10:45 AM
including voltage relationships