The paper presents a new LCL resonant DC/DC converter topology whose resonant LCL components are located in input side of the push-pull converter.The power switch of the push-pull converter operates in fixed nearly duty cycle 0.5 under unregulated mode.The resonant frequency is more than twice of the switching frequency.The Mosfet primary switches achieve almost zero-voltage switching(ZVS) conditions due to commutation of the magnetizing current of the transformer secondary side.The converter is suitable fo...