基于MSP430单片机的稳功率半导体激光器的设计  

Stable power semiconductor laser based on MSP430

作　　者：李峻灵[1] 

机构地区：[1]哈尔滨师范大学呼兰学院,黑龙江哈尔滨150500

出　　处：《长春工业大学学报》2007年第3期271-274,共4页Journal of Changchun University of Technology

摘　　要：使用16位低功耗的单片机MSP430F169对半导体激光器进行控制,采用APC的控制方式,通过功率的采样值与设定值的比较来控制驱动电流的大小,最后形成一个闭环的负反馈回路。为保护该半导体激光器而实施了慢启动、慢关闭以及限压和限流等保护措施。经实验测定,该系统的功率稳定度为0.5%-0.7%。With 16 bits and low power MSP430F169 microprocessor, a semiconductor is controlled in APC mode. The sampled power is compared with the given value to adjust the driving current and a negative feedback loop control system for semiconductor laser is formed. To protect the semiconductor laser, slow-start, slow-end, current and voltage limitation are designed. The results show that the power stability of the system is 0. 5 %-0.70%.

关 键 词：半导体激光器 自动功率控制 MSP430F169 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]