Hi,
I have a circuit with two 220Volt DC rails (+-220VDC) feeding into a
100kHz h-bridge to generate two 120VAC 60Hz rails (after LC filtering), for 240VAC split phase power.For controlling this I think the half bridges should be controlled independently to generate each 120VAC rail. So that would be two PWM controller IC's running in parallel I guess? I was thinking of using two UC3842's for this, and feeding the voltage feedback pins
60Hz sinewave to generate the AC outputs. Is there a better way to do this? The circuitry using two of these IC's seems pretty complex.Here's the circuit:
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cheers, Jamie