Compare a three phase VSI with square wave switching over SPWM switching for maximizing inverter output VA. All Questions › Category: Power Electronics › Compare a three phase VSI with square wave switching over SPWM switching for maximizing inverter output VA. 1 Vote Up Vote Down chetan shidling asked 4 years ago Compare a three-phase VSI with square wave switching over SPWM switching for maximizing inverter output VA. I need short information.