Bilateral power supply system and method for bidirectional full-bridge DC/DC converter

The invention discloses a bidirectional full-bridge DC/DC converter double-side power supply system and method, and the system comprises a transformer T, a primary side power supply circuit which is connected with the primary side of the transformer T, a secondary side power supply circuit which is connected with the secondary side of the transformer T, and a control circuit which achieves the mutual power supply of the primary side power supply circuit and the secondary side power supply circuit. The control circuit comprises a control chip, a drive circuit I, a drive circuit II, a square wave generator and a multiplexer. Through the arrangement of the primary side power supply circuit, the secondary side power supply circuit and the control circuit, power can be taken from a primary side port or a secondary side port through the cooperation of software and hardware under the condition that an isolation type switching power supply is not added, so that the whole control circuit can operate normally, and the