Hello,
I am somewhat new at smps. I am designing a simple circuit to amplify a square wave 400hz signal to 340Vpp signal. Am I correct to assume that a half bridge drive circuit is for single rail only (ie positive swing) and that what i should use is a full bridge driving 4 MOSFETs?
Also I breadboarded a half-bridge circuit driving 2 MOSFETs. The rail voltage is rectified line from a variac so that i can ramp it up slowly. The output signal looks good until I reach about 80V. The the signal appears to saturate and its amplitude stays at about 60V and will not increase even with increasing rail voltage.
Thanks in advance.
Paul