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Registered Member #1153
Joined: Mon Dec 03 2007, 07:27PM
Location: Croatia
Posts: 213
I was speaking with a friend in Germany i didnot speak for some time.
He has bought a SSTC from this guy
Later he trade it off for some other thingies.
He says me they tortured this coil for all nights half of year without turn off and coil worked, worked, worked...
Does anybody have idea which circuit is he using or what topology? I'm reading his claim "that circuit that he use nobody discovered until now and there is no IC-s, except in the "interrupter" which he calls BPS control.
Registered Member #51
Joined: Thu Feb 09 2006, 04:17AM
Location:
Posts: 263
I see 2 ic sockets on his board, and possible some voltage regulators. Looks like a DRSSTC with a full bridge drive to me. I doubt there is anything special about that design, just a standard DRSSTC circuit maybe with secondary or primary current feedback.
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
Its not even a drsstc as far as I can tell. It only runs at 5bps max but still requires an ac fan. There are also some little ics or something next to each igbt.
Registered Member #1025
Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566
the whole design looks very crapy so I'm also surprised what he can do with it. One of the bugs must be gate drive and the small (8pins) is most likely 555 timer. The main question is the one remaining bug. It could be PLL since it has antena feedback, you can see antena in one of the pictures on his web page (the older models).
Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
Has no one noticed the black wire going through the GDT? I believe he is using the primary current to drive the IGBT gates through a CT. The 2 film caps on the left are the resonant cap.
The 6-pin chip is likely an opto-coupler for a TRIAC (or perhaps some other device) to gate his power source on and off.
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What is he using?
