Re: Sold state IGBT disruptive coil spark gap idea (SISG)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

Sweet. Would this work on "pure" dc? Got a smps around my basement 
somewhere (looks like a bomb went off in a junkyard atm) that does 30 
kV(oc) 100mA(sc). Regulation stinks (~50%), but doesn't mind dead 
shorts too much. Without the rectifier/filter stage it's 100kHz 
squarewave, but weighs less than 10 lbs. Not much of a filter cap 
needed with only 5-10% off time between each pulse.

Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, May 28, 2006 4:33 PM
Subject: Re: Sold state IGBT disruptive coil spark gap idea (SISG)


> Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi All,
>
> I finally had time to do some more SISG work ;-)
>
> I actually got the measured top voltage on the scope, ScanTesla, and 
> MicroSim to all agree now:
>
> http://drsstc.com/~sisg/SISG-Wave.gif
>
> Here is a strike to ground.  Note how the energy in the primary is 
> not drained and is actually able to "recharge" the secondary system 
> some after a ground strike:
>
> http://drsstc.com/~sisg/SISG-GroundStrike.gif
>
> The only real odd problem is that the firing in my system is very chaotic:
>
> http://drsstc.com/~sisg/SISG-Firing.gif
>
> So I am no longer confident in the Freau numbers I gave before at 
> all... It runs real good, but I would like it to be a stable 
> 120BPS...  Probably all the chokes, rectifiers, caps, etc. messing 
> around with each other... The primary current is probably much 
> higher than I thought which is good since the IGBT heating will be 
> even less than expected ;-)
>
> Cheers,
>
> Terry