back emf via relais to stepup tranformer

evostars

Re: back emf via relais to stepup tranformer
« Reply #75,  »
not sure if it is doubled in frequency, but there are more resonant signals. but the voltage rise is less.

I will come back to this. but i need to leave it alone right now.
Re: back emf via relais to stepup tranformer
« Reply #76,  »
hahaha i will come back to this...

I cant let it rest...

I used my cd sleeve tesla bifilarpancake coils.

lets see what happens with a side by side speaker wire coil with a phi ratio hole in it...
but first ... eat
Re: back emf via relais to stepup tranformer
« Reply #77,  »
since the igbt only switches one side to ground, I connected the lead of the bifi coil
to the switching side.
now the resonant frequency is again 637 khz like usual. and the voltage rise is also off scale again.
a normal sine of several hundreds of volts(500v pp).

I have something strange going on here.
I use 12v dc from a wall socket as a power source. I put a ground to the positive to stabelize it.

but when i put a ground to the negative side (as would be ground) then it doesnt work. then the voltage is t in half to 6Vdc.

with my other supply its the same... that one is grounded, but i can only connect the positive to ground... STRANGE

i left the igbt with the bucking coils run for a while. and it only becomes mellow warm. (with the cd coil to earth as load)
Re: back emf via relais to stepup tranformer
« Reply #78,  »
when i put the other side of the coil not to ground but the other side of the bucking coil its the same signal. no difference
Re: back emf via relais to stepup tranformer
« Reply #79,  »Last edited
now it getting funny

only one wire connected to the bifilar from the  bucking coil (to the switched ground as before).

the other side is NOT connected.

the resonant coil outside rim is grounded and the center is probed.

200V pp resonant at 656khz.

for this I used the phi hole speaker wire coils

so... 1 wire into the pulsed coil... no ground.

grounded via the resonant coil.

normally these side by side coils resonate  above 1mhz.

 IMG_20170708_213508.jpg - 183.56 kB, 800x480, viewed 0 times.

Re: back emf via relais to stepup tranformer
« Reply #80,  »
if i reverse inside and outside rim the sine wave is bigger. pulsed from the outside,  to the center ground gives a 300v pp sine (the probe is then om the outside rim of the resonant coil, that is center grounded.

its also resonant at a lower frequency. 499khz
Re: back emf via relais to stepup tranformer
« Reply #81,  »
all this is from a single wire from the bucking coil to the bifilar coil. no ground.
is is grounding via the dielectric field into the resonant coil, that is grounded.

@Matt when i distance the coil, the frequency shifts instant and the sine is gone.
Re: back emf via relais to stepup tranformer
« Reply #82,  »Last edited
big sine is 300v pp from the outside rim of the resonantcoil

small is 100V measured at the switched side of the bucking coil.that is connected to the outside rim of the pulsed coil.

notice how the pulsed coil is out of phase with the resonant coil(!)

 IMG_20170708_214745.jpg - 74.74 kB, 800x480, viewed 0 times.


Matt Watts

Re: back emf via relais to stepup tranformer
« Reply #83,  »
Quote from evostars on July 8th, 2017, 11:50 AM
I have something strange going on here.
I use 12v dc from a wall socket as a power source. I put a ground to the positive to stabelize it.

but when i put a ground to the negative side (as would be ground) then it doesnt work. then the voltage is t in half to 6Vdc.

with my other supply its the same... that one is grounded, but i can only connect the positive to ground... STRANGE
Ya think?

http://open-source-energy.org/?topic=3013.0