基于ADuC812的半导体激光器智能温控及驱动电源设计  

Program-controlled LD Driver and Temperature Stabilized System Based on ADuC812

作　　者：江文杰[1] 蔡建乐[2] 林亚风[1] 殷红平[1] 

机构地区：[1]国防科技大学光电科学与工程学院,长沙410073 [2]杭州师范大学理学院,杭州310018

出　　处：《科学技术与工程》2007年第10期2220-2224,共5页Science Technology and Engineering

摘　　要：设计一种基于ADuC812微控制器的半导体激光器驱动及温控系统,以ADuC812微转换器为控制核心,用单片机的D/A输出和数字PID运算输出分别进行恒流和恒温控制。实验表明:该系统能提供(0-2.5)A长期恒定的电流,纹波系数小于0.1%;温控精度优于±0.02℃。A LD driver and temperature stabilized system which based on micro-converter ADuC812 is designed. The system works under the control of ADuCS12. A A/D output and the PID output of the micro-converter controls respectively the stable current source and the stable temperature circuit. Tests show that this system can achieve a long time stable current of（0 -2. 5 ） A for LD. The temperature control precision is less than ±0.02℃.

关 键 词：半导体激光器 驱动电源 温控 恒流源 PID控制 

分 类 号：TN248.4[电子电信—物理电子学]