New parallel loaded resonant converter with wide input and output voltage range

Abstract

This paper proposes a new parallel loaded resonant converter with wide input and output voltage range. The proposed converter is capable of operating under zero-voltage switching (ZVS) turn-on of switches and zero-current switching (ZCS) turn-off of diodes and works in a narrow switching frequency under wide input and output voltage range. Also, proper selection of resonant capacitor is possible by adjusting the turn ratio of the transformer, making the proposed converter more realizable in high power application. Experimental results from a 3kW prototype are provided to validate the proposed concept.