摘  要：直流电机驱动在移动机器人领域中具有重要意义。针对移动机器人，基于H桥功率驱动电路以及PWM脉宽调制原理，设计并实现了一种直流电机正、反转驱动调速控制电路，满足大功率直流电机驱动控制。实验表明，该驱动电路具有电路简单，抗干扰能力强，驱动能力强的特点，可在移动机器人及其他场合得到有效的应用。
关键词：移动机器人；直流电机驱动；光耦隔离；H桥；N沟道增强型场效应管

Abstract: The DC motor driver is very important for mobile robot. This paper, based on the H-bridge driver circuit and the PWM pulse width modulation principle, designed and implemented DC motor driver program, to achieve positive, reverse driving and speed control for the mobile robot. Experiments show that the program has simple circuits, strong anti-interference and driving ability, and can be very useful and effective in the mobile robot and the other applications.
Key words: mobile Robot; DC motor driver; optocoupler isolation; H-bridge; N channel MOSFET