Notice

Condition: Accepted

Article title: Investigation of Zero Voltage Switching Capability for Bidirectional Series Resonant Converter Using Phase Shift Modulation

Authors: Hwa-Pyeong Park, Mina Kim and Jee-Hoon Jung*

Abstract

A series resonant converter (SRC) using a phase shift modulation (PSM) was invented to implement the bidirectional power flow. However, it has narrow zero voltage switching (ZVS) range which reduces the power conversion efficiency for the light load condition. In this paper, the ZVS condition of the SRC is analyzed according to the power flow directions. From this analysis, the SRC using a extended phase shift modulation (EPSM) and single phase shift modulation (SPSM) is proposed to obtain the soft switching for the entire load range. The analysis of ZVS condition and performance of proposed control algorithm are verified using simulation and experimental results with a 500 W prototype converter.