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Registered Member #1876
Joined: Sun Dec 21 2008, 08:33PM
Location: Slovenia
Posts: 13
SSTC 5 saga continues... I made new driver board with just basic driver... ucc37321, ucc37322 and 74hc14 +antenna. Interrupt signal comes from separate circuit Problem is that UCC37321 gets smoking hot and blows up. Here is schematic and PCB
Registered Member #3450
Joined: Sun Nov 28 2010, 05:01AM
Location:
Posts: 61
You have the UCC pins 2 and 3 reversed. Pins 2 on the UCC's have to go to the Interrupter circuit and pins 3 on the UCC's have to go to the feedback circuit.
Correction. Disregard the above post. You have them the right way.
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Steve Ward MINI SSTC (SSTC5) problem
