ZVS-PWM isolated boost DC-DC converter. It takes the supply from fuel cell battery at the input side compared to the previous full bridge converter, This half bridge converter to produce the same efficiency. The advantages of the paper is to reduce the number of devices and the mean time to reduce the losses, correspondingly to reduce the space and design cost. The system is simple and easy to operate the entire circle without more additional devices. It is used for medium and high power application. Zero voltage switching is applied in all the inverters. It is achieved the power flow in either direction. The circuit is compact packaging and reduce the losses. The simulation results are of closely agree with the theoretical approach a high efficiency achieved by using a minimal number of electronic devices working in the soft switching mode. It is operated at the frequency of 55 khz.
Terms DC-DC converter, soft switching, bi-directional power flow, conduction, losses, zero current switching and zero voltage switching.