brief introduction: Motor driver: is a switch, the motor drive current is very large or the voltage is very high, the general switch or electronic components can not be used as the control of the motor switch will be added to the so-called driver to control the motor, the driver can also be used to speed control, control the positive and negative motor.Function of the motor driver: the function of the motor driver refers to the way to control the idle speed of the motor by controlling the rotation Angle and running