Secondary side phase-shifting controlled full-bridge converter

The invention discloses a secondary side phase-shifting controlled full-bridge converter, belonging to the technical field of electric energy converters. The secondary side phase-shifting controlled full-bridge converter comprises an inverter circuit, a high-frequency transformer, a rectifier network, a filter circuit and a load, wherein the rectifier network is a bridge-type rectifier circuit comprising four diodes D5-D8. According to the secondary side phase-shifting controlled full-bridge converter disclosed by the invention, the rectifier network is improved; and two output ends of a secondary side of the transformer are respectively connected with a fifth switching tube S5 and a sixth switching tube S6 in series. The secondary side phase-shifting controlled full-bridge converter is suitable for high-voltage and high-power application occasions and can be used for realizing soft switching of all switching tubes and effectively inhibiting the voltage and current peaks of the switching tubes; in addition, by using secondary phase-shifting control of the transformer, the condition that exciting current flows through a circuit in the phase-shifting process only is realized. Therefore, circular current loss is reduced and the difficulty of realizing zero-voltage on-off of a lag bridge arm is overcome.