SSTC problem - not plasmasonic :-))

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Original poster: Kreso Bukvic <kreso.bukvic-at-kc.htnet.hr> 

I have started building Steve Wards mini SSTC  ! Terry and John gave the
parts. I made evrything until mosfet driver IC-s ( UCC37322/1's ) And tried
to connect the power to see if the chips heat or somthing and UCC IC popped
on one small hole puncturedon pin 4 ! I checked ALL wiring evrything was ok.
Again popped the chips. Now i toke a completly new IC and soldered only the
power supply to it ( 12 V ) I used my handy, expensive, professional bench
SPU ( obviously the problem was not here ) and soldered 4 wires (- to pin
4,5) (+ to pin 1,8) ana a capacitor 0.1 uF across the + and -. I tried
disconnecting the capacitor too but id didnot help a soon i connected the
psu the IC acts as short circuit. Maximall current draw was set to 1 A i
tried setting it to 100 mA so i do not burn the other IC-s but no help.

Here is the setup until now. But any way the chips pop even without any
other wires connected except PSU.

http://hot-streamer-dot-com/temp/miniSSTCsch3.jpg

I hope Stewe wont mind me changing his shematics. Sory Steve

Best Regards

Kreso Bukvic