Over modulation with Square wave PWM
Over-modulation means taking m beyond 1. pwm voltage source inverter is discuss here with examples. Over modulation transfers inverter operation from square wave PWM to ordinary square-wave control. Case 1: Single-phase bipolar square-wave PWM Vo waveform with over-modulation of single-phase bipolar PWM Ideal over-modulation makes a smooth transition from square-wave PWM to square-wave VSI but, …