摘要
为了使半导体激光器能够快速地达到稳定工作状态,提出并实验验证了一种串联双PID控制的高精度热电制冷器(TEC)温度控制系统,该控制系统的控制芯片采用飞思卡尔MC9S12XS128MAL单片机,通过负温度系数热敏电阻进行温度信息的采集,驱动电路采用BTN7971芯片驱动TEC工作,在软件编程上,通过采用串联PID算法,利用闭环负反馈结构实现温度的稳定控制。在实验中,当温度从26.6℃上升到目标温度40℃时,建立稳态的时间为40 s,超调量为0.1%,当温度从26℃下降到10℃时,建立稳态的时间为50 s,与常规PID控制系统相比,该系统具有更好的动态性能。
In order to enable the semiconductor laser to achieve a stable working state quickly,a high precisionThermoelectric Cooler（TEC）temperature-controlled circuit is proposed and experimentally demonstrated by usingseries double PID,a microcontroller of Freescale Semiconductor MC9S12XS128 MAL is used in the controlled cir-cuit,and a negative temperature coefficient thermistor is used to collect temperature information,the TEC chip isderived by the driving circuit with two BTN7971 chip to drive the TEC work,in the software programming,the sta-bility control of the temperature is realized by using the PID algorithm and the closed loop negative feedback struc-ture. In the experiment,when the temperature rises from 26.6 ℃ to 40 ℃,the stabilized time is within 40 s,and theovershoot is about 0.1%,and when the temperature drops from 26 ℃ to 10 ℃,the stabilized time is about 50 s. Com-pared with the conventional PID control system,the system has better dynamic performance.
出处
《电子器件》
CAS
北大核心
2016年第5期1135-1139,共5页
Chinese Journal of Electron Devices
基金
大学生创新创业训练计划项目(2015021)
江苏省产学研前瞻性项目(BY2015057-39)
江苏省高校自然科学研究基金项目(14KJB510034)
中国博士后科学基金资助项目(2015M571637)
盐城工学院人才引进资助项目(KJC2013014)
关键词
温度控制
热电制冷器
PID控制
自调整
PWM控制
temperature control
thermoelectric cooler
PID control
self-regulatory
PWM control
