SOFT-SWITCHING BIDIRECTIONAL DC/DC CONVERTER AS A TRANSFORMER

Abstract — In this paper a soft-switching bidirectional dc/dc converter acts as a dc –dc transformer is proposed which can do all the functions of buck and boost converter. In this paper soft switching is done by using LC series resonant circuit. Soft switching is done at ZVS conditions. The proposed topology do functions by minimizing all the problems of hard switching.. A zero voltage switching operation of the power switches reduces the switching loss during the switching transition and improves the overall efficiency Simulation is done in PSIM