Fast charging control circuit for high-capacity capacitor of flyback power supply

The invention provides a flyback power supply high-capacity capacitor rapid charging control circuit, which belongs to the technical field of flyback power supplies and comprises a flyback power supply, a high-capacity capacitor energy storage unit, an overcurrent sampling unit, a voltage feedback compensation unit, a charging control unit and a feedback signal amplitude limiting adjustment unit. The flyback power supply charges the high-capacity capacitor energy storage unit, the overcurrent sampling unit collects a current signal IS of the flyback power supply, the voltage feedback compensation unit collects a voltage feedback signal COMP of the flyback power supply and sends the voltage feedback signal COMP to the charging control unit, and the charging control unit sends a PWM signal to the flyback power supply and controls the charging voltage of the flyback power supply; the feedback signal amplitude limiting adjustment unit is connected with the charging control unit; the charging control unit generate