It just appears to me that there is an inherent flaw with using caps because of the charge up time. Even if one bank is charging while the other bank is firing wouldn’t there be a delay time with using a relay to switch them?
I beg to differ. If Russ would have 10 sequential 1000 Joules capbanks, then the switchtime between those can be set as wanted.
Even discharging bank 2 when 1 is still discharging. I mean who says you have to wait till bank 1 is discharged? The switching is a separate circuit. That's the nice freedom in such a system.
If it interferes with each other then thats a problem for our electronic design engineer :)
That cap i still don't have, thats why i don't post on electronic circuitry.
FaradayEz and Russ, I posted a potential circuit a while back that used a latching relay to switch between two cap banks. One reason I think this project may be heading in the wrong direction is that it is using too much power for the high current discharge. It is quite difficult to electronically control multiple cap banks with low cost semi devices, not to mention energy intensive. You must isolate the bank being discharged from all the others which are being charged. This seems to require a sync circuit or controller that would turn on devices, such as SCRs, to charge the waiting caps and keep the charging circuit off on the one being discharged. The discharging cap must also be isolated so the other caps are not in the circuit. SCRs essentially turn themselves off when current get below the holding current so some detection of this is needed or maybe use an IGBT. Then you have the problem of peak current which is why this project should go toward reducing the cap value needed.
I mentioned waiting for inteligentry device because they don't seem to need high value cap discharge but that was considered lazy. It might also be considered prudent but it doesn't mean all work needs to stop. :rolleyes:
yes, i did see it and i have posted that the big cap bank is not the way to go in the end. BUT as we progress we must work with what we have and know works... ( only need 10 caps but there were cheaper than dirt so i got some extra... not going to use all them on the popper... or at least not at full power !! lol )
this will bring forth some basic ideas and understanding where to go from here...
we all ready know we need some pree-ionization and coils to make the most of it... but we also know we can go " brought force" and make it work...
the main goal is not speed or motor application. but rather the WHY and the understanding of how it is working and how to make it more efficient...
any how. thats my goal. understand a bit more so we can make better judgments on how to make it better...
trying to understand it completely is a waist of time as we don't have the equipment to do such tests... but we must understand it better than we do now.
any how more work to do but family first and it has been busy
:) Blessings!
~Russ