光电技术应用
光電技術應用
광전기술응용
ELECTRO-OPTIC WARFARE & RADAR PASSIVE COUNTERMEASURES
2014年
2期
70-74
,共5页
laser diode(LD)%光纤激光器%自动电流控制%自动温度控制%proportion integral derivative(PID)
laser diode(LD)%光纖激光器%自動電流控製%自動溫度控製%proportion integral derivative(PID)
laser diode(LD)%광섬격광기%자동전류공제%자동온도공제%proportion integral derivative(PID)
laser diode (LD)%fiber laser%automatic current control (ACC)%automatic temperature control (ATC)
根据大功率、低噪声半导体泵浦光纤激光器对于激光电源的要求，通过LD工作原理和输出特性分析，设计一种以ADuc842高速单片机为主控芯片的LD驱动控制电路。设计采用自动电流控制（ACC）和自动温度控制（ATC）的方式，实现LD的恒流源驱动和恒温控制。设计还引用了双限流电路、浪涌吸收电路及慢启动电路等一系列保护电路，提高了LD的抗冲击能力和工作稳定性。实验结果表明，电流输出稳定度优于0.5%，温度稳定度达到±0.1℃。
根據大功率、低譟聲半導體泵浦光纖激光器對于激光電源的要求，通過LD工作原理和輸齣特性分析，設計一種以ADuc842高速單片機為主控芯片的LD驅動控製電路。設計採用自動電流控製（ACC）和自動溫度控製（ATC）的方式，實現LD的恆流源驅動和恆溫控製。設計還引用瞭雙限流電路、浪湧吸收電路及慢啟動電路等一繫列保護電路，提高瞭LD的抗遲擊能力和工作穩定性。實驗結果錶明，電流輸齣穩定度優于0.5%，溫度穩定度達到±0.1℃。
근거대공솔、저조성반도체빙포광섬격광기대우격광전원적요구，통과LD공작원리화수출특성분석，설계일충이ADuc842고속단편궤위주공심편적LD구동공제전로。설계채용자동전류공제（ACC）화자동온도공제（ATC）적방식，실현LD적항류원구동화항온공제。설계환인용료쌍한류전로、랑용흡수전로급만계동전로등일계렬보호전로，제고료LD적항충격능력화공작은정성。실험결과표명，전류수출은정도우우0.5%，온도은정도체도±0.1℃。
According to the laser power supply requirements of semiconductor pumping fiber lasers with high power and low noise, as well as the analysis of laser diode (LD) operation function and output characteristics, a LD driving control circuit with high speed micro-computer unit ADuc842 as the main control chip is designed. Automat-ic current control (ACC) and automatic temperature control (ATC) are used in the design to realize constant current source driving and constant temperature control of LD. Protection circuits such as double current-limiting circuit, surge absorbing circuit and low speed starting circuit are adopted in the design so as to improve the anti-interfer-ence ability and operation stability. Experimental results show that output current stability error is better than 0.5%and temperature stability error is ±0.1℃.
