Its been a while now since ive decided to make an induction heater. I have had no success whatsoever using a half-bridge inverter. the mosfets,igbts, and even transisters never seemed to turn on when they were fed the signal and connected to the source, even when i used mosfet drivers and induction heater schematics submitted by others who have gotten it to work.
I was wondering, since induction heaters use inverting sine waves in the work coil, if instead of using a half bridge or full bridge inverter, if i were to make the inverter from this circuit: http://ecelab.com/circuit-sine-wave-gen.htm The only difference would be adding a DC blocking capacitor at the output and making the op-amp from high power transistors like in this design: http://ecelab.com/op-amp-circuit.htm
I also took a look at the circuits on this web page:
http://www.tpub.com/neets/book9/35e.htm
Would these circuits work as an alternative to the half bridge inverter used in induction heating?
I was wondering, since induction heaters use inverting sine waves in the work coil, if instead of using a half bridge or full bridge inverter, if i were to make the inverter from this circuit: http://ecelab.com/circuit-sine-wave-gen.htm The only difference would be adding a DC blocking capacitor at the output and making the op-amp from high power transistors like in this design: http://ecelab.com/op-amp-circuit.htm
I also took a look at the circuits on this web page:
http://www.tpub.com/neets/book9/35e.htm
Would these circuits work as an alternative to the half bridge inverter used in induction heating?