Full-bridge rectification circuit based on PI control

The invention provides a PI control-based full-bridge rectifier circuit, which comprises a rectifier circuit I, a full-bridge circuit and a PI control circuit, and is characterized in that the rectifier circuit I is electrically connected to a voltage input end of the full-bridge circuit and is used for converting alternating-current voltage into direct-current voltage; the full-bridge circuit is used for reducing the voltage input by the rectifying circuit I; the PI control circuit is electrically connected to the signal control end of the full-bridge circuit and used for adjusting the duty ratio of the output PWM driving signal in real time to enable the output voltage of the full-bridge circuit to reach a set value, the PI control circuit is used for adjusting the duty ratio of the output driving signal in real time, and finally the output voltage is changed through the dynamic duty ratio, so that the output voltage of the full-bridge circuit reaches the set value. According to the full-bridge ...