Re: SSTC problem - not plasmasonic :-))

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Mitchell" <electrontube-at-sbcglobal-dot-net> 

LOL kreso you stole my joke about the plasma sonic :-)

Anyway,  I had trouble with the UCC37322 when I tried to make the microsstc
so long ago,  try using the TC4420,  also tie pin 3 to VDD through a .1uf
cap that might help.

Regards - Jim Mitchell
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, April 10, 2004 7:43 PM
Subject: SSTC problem - not plasmasonic :-))


 > 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
 >
 >