I WANT TO KNOW THAT IN AN IRON CORE TRANSOFRMER INVERTER DESINE WHAT FREQUEENCY OF TRIANGULAR WAVE WILL BE MODULETED WITH THE 50HZ SIGN WAVE REFERENCE?
1) The inverter works similar to class D audio amplifier. 2) Chose PWM frequency. There three aspects: a) PWM frequency must be at least 10-20 times higher than 50Hz. So 500-1000Hz minimum. b) Higher frequency - higher switching loses. c) At frequency less than 25kHz transformer can produce some noise. 3) Efficiency 85-95%. 4) Synthesis method: analog with triangle voltage - is obsolete. Use a microcontroller with PWM.
Real C programmers do it by the book (ya!)