The designed new kind of high voltage and large power bidirectional DC/DC converter made great improvement on the topologi-cal structure of traditional symmetry full-bridge bidirectional DC/DC converter. This paper analyzed the working principle of dual full-bridge bidirectional DC/DC converter with insulated direct current capacitance and active clamping circuit, completing the design calculation of the primary device parameters and optimizing the design of high frequency transformer. The experimental results show that the converter raises the overall efifciency effectively and reduces the vo...