Abstract—Performance of a single phase unipolar PWM inverter is compared based on circuit configurations. A part of main switches are connected to high frequency arm and the remaining switches to low frequency arm. All main switches of high frequency arm operate at Zero Voltage Switching (ZVS) turn on and all the main switches of low frequency arm operate at 50 Hz to reduce switching losses. The main purpose of using Unipolar PWM inverter is to reduce output voltage harmonics.

Index Terms—Soft-switching, Unipolar Pulse width Modulation (PWM) inverter, Zero Voltage Switching (ZVS), Electromagnetic Interference (EMI)

Cite: Priya Seema Miranda and Sathisha K, "COMPARATIVE STUDY OF SINGLE PHASE INVERTER-BASED ON UNIPOLAR PWM TECHNIQUES," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 1, No. 1, pp. 253-258, March 2015.