Technical introduction
The utility model relates to a circuit structure for regulating the excessive energy feedback voltage of an electric vehicle, which comprises a power supply circuit, a comparator IC2, a triode Q1, a triode Q3, a MOS tube Q2 and a diode D1; The anode of diode D1 is connected with the positive pole of battery pack BT, the cathode of diode D1 is connected with the positive pole of motor drive controller, and the negative pole of battery pack BT is connected with the negative pole of motor drive controller; The U phase, V phase and W phase of the motor are respectively connected with the corresponding ports of the motor drive controller. The device can be used as an additional functional module, which can be installed in existing electric vehicles, so as to increase the service life of battery pack BT and drive controller, and ensure the safety of battery pack BT and drive controller.
Application area
Applied to electric vehicles.