DC motor movement drive device

The invention discloses a DC motor movement drive device, and the device comprises a collection circuit, a proportion calculation circuit, a signal conversion circuit, a PWM generation circuit, an interlocking circuit, and a power amplification circuit. The collection circuit is used for collecting a current signal fed back by a DC motor, and transmitting the current signal to the proportion calculation circuit. The proportion calculation circuit is used for achieving proportion calculation based on a control signal outputted by a controller and the current signal. The signal conversion circuit is used for converting an output signal of the proportion calculation circuit into a signal matched with the PWM generation circuit. The PWM generation circuit is used for generating a PWM signal according to the output signal of the signal conversion circuit. The interlocking circuit is used for preventing upper and lower power tubes in the power amplification circuit from being connected at the same time. The power amplification circuit is used for the power amplification of the output signal of the interlocking circuit, so as to drive a motor. The device is high in universality, is low in cost, is simple in structure, and is suitable for large-power, big-torque and low-rotating-speed DC motors.