What purpose does the gate drive transformer serve ? Isolation ? Or anything else ? If that's the case , I could use an optoisolator. And how do I wire the o/p of the pulse generating circuit to the scr's ? I just winged it and performed Multisim simulation. Fed the gates of the four scrs from the same point. The simulation showed it behaving as a half wave rectifier. No output for negative cycle. So I guess I'm doing it wrong. Do I need to provide separate trigger circuits for the scr pair which would trigger during successive cycles ?usually via smallish gate drive transformers, 100kHz, picket fence (50%) triggering... SCr's triggered over entire on time...
You really should post the schematic...I'm going to post my schematic and simulation results.
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