New Soft Switching Circuit using Lossless Snubber Circuit for Zero-Voltage-Transition Converter

Abstract

A new soft switching circuit system with a lossless snubber circuit as an auxiliary circuit in the soft switching circuit is proposed in this letter. Soft switching operation is achieved for the main switch and the auxiliary switch. Moreover, zero current switching operation in the turn-off of the main switch is also realizable in the proposed circuit by using the charging voltage of the auxiliary capacitor in the lossless snubber circuit.