Interleaved zero voltage switching forward converter with less switches

Abstract

An interleaved zero voltage switching (ZVS) forward converter with less switches is presented. Two forward converters with active clamp technique are adopted in the circuit to achieve interleaved pulse-width-modulation (PWM) operation and load current sharing. Only two switches are used in the converter instead of four as in the conventional parallel ZVS converter. Experiments verified the theoretical analysis and the effectiveness of the converter.