Re: [TCML] SSTC PlasmaSonic Board HELP!!!

[DC Cox <resonance@xxxxxxxxxxxx>]

Uour probably should get some help from a local elec. engr, or an EE
student.  You will be working with IGBTs that are driven by a "driver board"
that generates a timing signal to turn the IGBTs off and on at specific time
intervals.  If you don't carefully phase the driver signals you end up
switching the IGBTs into a dead short which can blow them in short order.

Driver boards typically use a 555 timer or TL294 IC to produce the timing
signals.

Other boards include the rectifier board, usually 400 Volt 60 Amp heavy duty
rectifiers, and a cap bank (sometimes in voltage doubler configuration).

You will definitely need help, and a good oscilloscope and someone who knows
how to use it well.  Phasing takes both knowledge and patience.

Dan has published the schematics in his book, however, there are some minor
discrepancies, and they will not work as published.  Dan's book you should
have --- it's a good introduction to DRSSTC work and discusses each section
in great detail.

I also make a DRSSTC system running a voltage line doubler (335 VDC) which
produces a solid 6 ft spark from a 9" OD x 52" winding length coil (25
AWG).  I expect to have boards finished, populated, and available after
Christmas.  IGBTs are the PowerEx series CM300 dual modules.  Line draw is
14 Amps at 120 vac.

Dr. Resonance



Dr. Resonance




On Thu, Oct 29, 2009 at 11:49 PM, Andrew Robinson <teslamad@xxxxxxx> wrote:

> With much thanks to Rick Wall, I have acquired a PlasmaSonic SSTC board by
> Daniel McCauley date 06/13/2003 SC2033 REV. (THANK YOU RICK!!!) Will this
> work to build a DRSSTC because the board just says SSTC? Does anyone have
> any written information on this board. A Schematic? Anything? I'm not
> planning on doing anything with this board for quite awhile since I still
> dont fully understand the concepts.
>
> Can someone PLEASE tell me the quick basics of what the GENERAL components
> are. What I mean is, dont describe like the capacitors and transistors etc.
> What I need is, are there three circuits? Two circuits? One circuit? Is this
> the only board I need, or is this just a driver circuit that will control a
> high voltage circuit? Whats the inverter, Gate driver, and, etc. Someone
> please provide some insight. I been trying to find basic help online and on
> the list several times and every reply I get is still way overly
> complicated. Need basics. I'm a veteran of SGTC, but completely new to
> SSTC's and DRSSTC's.
>
> Thanks,
> Andrew
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