Abstract: A novel dual active bridge (DBA) bidirectional DC-DC converter with LCC resonant net was proposed. The converter was composed of LCC resonant net and traditional bidirectional DC-DC circuit with zero voltage switching (ZVS) operation of the primary side switches and zero current switching (ZCS) operation of the rectifier diodes in forward power transition. This paper analyzed the buck operation mode in the reverse direction. The simulation and experimental results illustrates that the proposed topology can realize the power transition in both directions and the switches can be turned ON and OFF in ZVS and ZCS.

Key words: Bidirectional DC-DC converter, LCC resonant tank, ZVS, ZCS