根据半导体激光器的工作原理,使用两片AVR单片机ATMEGA16作为核心控制部件,并配合触摸屏式人机控制界面和外部硬件电路,实现了半导体激光器功率稳定输出的自动控制系统。该系统包括恒流源、光功率采样反馈、保护电路、温度控制等部分,能为半导体激光器提供稳定、准确的驱动电流,自动光功率控制和恒温控制。 According to the working principle of the semiconductor laser, using two AVR ATMEGA16 as the core control unit, and with the touch-screen man-machine interface and external hardware circuits, the automatic control system of the power output of the semiconductor laser is achieved. The system includes constant current source, optical power sampling feedback, protection circuit, temperature control and other parts, which can provide stable and accurate driving current, automatic optical power control and constant temperature control for semiconductor lasers.