i built this circuit just for fun:
https://electroschematics.com/220/12v-dc-220v-ac-converter/
It is a square wave oscillator. i subtituted high power mosfets for the darlingtons. the circuit works great, but there is a lot of harmonic buzzing comming from the transformer. it draws 2 amps at idle. my question is, is there a way to suppress of get rid of the unwanted buzzing harmonics? mabey a capacitor somewhere? the transformer does not buzz when fed properly with mains. i am reading 60hz on the output.
https://electroschematics.com/220/12v-dc-220v-ac-converter/
It is a square wave oscillator. i subtituted high power mosfets for the darlingtons. the circuit works great, but there is a lot of harmonic buzzing comming from the transformer. it draws 2 amps at idle. my question is, is there a way to suppress of get rid of the unwanted buzzing harmonics? mabey a capacitor somewhere? the transformer does not buzz when fed properly with mains. i am reading 60hz on the output.