Sold state IGBT disruptive coil spark gap idea

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Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi All,

I was up late last night working on an idea for an IGBT replacement 
for a conventional coil spark gap.  I woke right up at 2PM this 
afternoon (semi-retired people can do that :O)))  and started getting 
some parts and wrote a paper up on it here:

http://hot-streamer.com/temp/Sidac-Gap-1.pdf

It is not super cheap, but not insanely expensive either.  Might be 
great for lower voltage MOT systems with E-bay big IGBTs...

There has been ZERO real testing so don't get over excited ;-))

It basically uses IGBTs fired by strings of SIDACs.  Each section 
should be fully independent and they can be put in series as needed 
for any voltage.  One could "tap" the string for various power 
levels.  Power losses seem very pleasant.

It will take some real world testing to see if and how well it works, 
but the things seems sound.  It is an easy and simple circuit that 
hopefully not much can go wrong with :o))

Parts on order...

Cheers,

	Terry