大功率半导体激光器的精密模糊PID温控系统  

Temperature controller system for high-power laser-diode based on fuzzy+PID

作　　者：孙丽飞[1] 田小建[1] 艾宝丽[1] 

机构地区：[1]吉林大学电子科学与工程学院

出　　处：《量子电子学报》2005年第3期382-386,共5页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金(60372061)资助项目

摘　　要：介绍了一种大功率半导体激光器的精密模糊PID温控系统。利用半导体致冷器作为控温执行器件, 构成了全固态致冷系统,并且针对TEC的驱动特性,设计了一种高精度数字PWM功率驱动器。本系统采用AT89C52单片机,利用软件实现了在线参数自整定模糊PID控制算法以及热敏电阻的非线性补偿。试验证明, 温度控制精度可达±0.06℃。A temperature-control system for high-power semiconductor laser-diode with high precision was presents. In the system, a thermoelectric cooler was used to control the temperature of the laser-diode which realized the totally solid cooling system and a digital PWM power amplifier with high-precision was designed based on the characteristics of thermoelectric coolers. In the implementing process, single-chip micro-computer was used, and fuzzy PID method of which the parameters were self-turned on-line and nonlinear ompensation of the thermistor were accomplished through software. The results show that high control precision and small scillation can be gained and the temperature-controlling error of the system is ±0.06 ℃.

关 键 词：激光技术 大功率激光二极管 半导体致冷器 模糊 PID 温度控制 

分 类 号：TN248.4[电子电信—物理电子学]