Research on Design of DC Motor Control System Based on microcontroller

DC motors convert electrical energy into mechanical energy, compared with AC motors, DC motors have many advantages good speed performance, high starting torque and overload, etc., it is widely used in machinery industry.MCU control DC motor is a typical application in mechanical and electrical control, just between the two ends of the DC motor control coupled with a voltage difference between the voltage it will rotate, changing the applied voltage across can change the direction of rotation.This paper designs DC motor control system based on microcontroller is presented.We use STC89C52 micro controller as kernel controller, TA7267BP as driver chip, and four keys to control the DC motor reversions, break corresponding state indicators.Hardware circuit and achievable method of software are also presented choice in controlling micro DC motor stop, and light the system is a better.