中文摘要：

针对半导体激光器（LD）出光稳定的应用要求,设计了一种有效的温度控制电路。电路基于单片热电制冷控制芯片ADN8830,采用闭环负反馈结构,使用恒流源测温电路代替普通H桥式测温电路,解决了非线性误差问题,通过比例积分微分（PID）补偿电路产生控制信号,驱动热电制冷器（TEC）,实现了对LD工作温度的高精度控制。通过测试,LD工作温度在1 min内达到设定温度,30 min内,在25℃的工作温度下稳定度达±0.2℃。结果表明：该电路能快速、有效地控制TEC工作,达到稳定LD工作温度的目的。

英文摘要：

For stabilizing the laser light source,an effective temperature control circuit was designed.Based on a thermoelectric cooling control chip ADN8830,the negative feedback loop was adopted for laser diode（LD） temperature controlling.Constant-current source temperature-measuring circuit was used to eliminate voltage-temperature nonlinear error instead of normal H-bridge circuit.The thermoelectric cooler（TEC） was driven by control signal,which was generated by proportional-integral-derivative（PID） compensating circuit,to realize the high accuracy controlling of LD working temperature.Performance test showed that LD working temperature reached the set point temperature（25 ℃） within 1 min,the working temperature stability was up to ±0.2 ℃ in 30 min.The simulation results show that the circuit can control TEC to stabilize the LD working temperature quickly and effectively.