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Re: SSTC problem - not plasmasonic :-))
Original poster: "Eastern Voltage Research Corporation" <dhmccauley-at-easternvoltageresearch-dot-com>
You definitely have something wired incorrectly.
Also, once you "pop" a chip, its trash. You need a new chip.
Check your circuit again. Check the voltages on your board before you
install the chip.
Also, are you looking at the numbering on the chip correctly???
Dan
> 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
>
>
>
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