大功率半导体激光器脉冲式恒流驱动电路设计
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摘要
针对半导体激光器驱动电路的脉冲式恒流需要,提出了一种以金属氧化物半导体场效应晶体为开关器件,采用了闭环反馈系统,运用负反馈原理输出恒定电流的半导体激光器驱动电路。为了防止过冲电压和纹波造成半导体激光器的损坏,在电路的设计中加入了限流保护电路并且使用了高摆率的运放。经测试,消除了过冲电压,实现了脉冲恒流的输出,实际应用表明该脉冲恒流源驱动电路对激光器安全可靠,峰值功率可达40 W。
Aiming at the requirement of impulse constant-current of the driving circuit for semiconductor laser,presenting a metal oxide semiconductor field effect transistor as a switching device,applying a closed-loop feedback system and using negative feedback principle of constant current output,the driving circuit for semiconductor laser is studied in this paper.In order to prevent damage to the semiconductor laser due to overshoot voltage and ripple,a current-limiting protection circuit is added to the design of the circuit and a high slew rate op amp is used. The overshoot voltage is eliminated and the output of the pulse constant current is realized after testing. The practical application indicates that the pulse constant current source driving circuit is safe and reliable to the laser with a peak power of up to 40 W.
Aiming at the requirement of impulse constant-current of the driving circuit for semiconductor laser,presenting a metal oxide semiconductor field effect transistor as a switching device,applying a closed-loop feedback system and using negative feedback principle of constant current output,the driving circuit for semiconductor laser is studied in this paper.In order to prevent damage to the semiconductor laser due to overshoot voltage and ripple,a current-limiting protection circuit is added to the design of the circuit and a high slew rate op amp is used. The overshoot voltage is eliminated and the output of the pulse constant current is realized after testing. The practical application indicates that the pulse constant current source driving circuit is safe and reliable to the laser with a peak power of up to 40 W.
引文
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[2]于复生.大功率半导体激光器驱动电源的设计[J].应用激光,2000,20(6):257-260.Yu Fusheng.The Design for High-power Diode Laser Driver[J].Applied Laser,2000,20(6):257-260.
[3]王忠林,阎明媚.半导体激光器恒流驱动电路的研制[J].滨州学院学报,2007,23(3):30-32.Wang Zhonglin,Yan Mingmei.Research and Design of High-power Semiconductor Laser Diode Driver[J].Journal of Binzhou University,2007,23(3):30-32.
[4]荆云波,侯云海,刘东东.几种脉冲恒流源实现形式的研究[J].科技与创新,2016,(19):9-10.Jing Yunbo,Hou Yunhai,Liu Dongdong.Research on The Realization Forms of Several Pulse Constant Current Sources[J].Science and Technology&Innovation,2016,(19):9-10.
[5]张国雄,黄春晖.一种高稳定连续可调半导体激光器驱动源[J].激光与红外,2011,41(2):160-163.Zhang Guoxiong,Huang Chunhui.Continuously adjustable semiconductor laser diode driver with high stability[J].Laser and Infrared,2011,41(2):160-163.
[6]杨燕,俞敦和,吴姚芳,等.新型窄脉冲半导体激光器驱动电源的研制[J].中国激光,2011,38(2):30-35.Yang Yan,Yu Dunhe,Wu Yaofang,et al.Design of a Novel Drive Power for Narrow Pulse Laser Diode[J].Chinese Journal of Lasers,2011,38(2):30-35.
[7]王德寿,习友宝.具有快速脉冲沿的脉冲电流发生器的设计[J].测控技术,2017,36(3):155-158.Wang Deshou,Xi Youbao.Design of Precise Current Pulse Generator with Short Rise/Fall Time[J].Measurement and Control Technology,2017,36(3):155-158.
[8]马天翔.50A大功率脉冲恒流源技术研究与实现[D].吉林大学,2012.Ma Tianxiang.Research and Implementation of 50A High-Power Pulse Constant Current Supply[D].Jilin University,2012.
[9]明奇,梅欣丽,李常青.连续或脉冲输出功率可调LD驱动电源设计[J].电子设计工程,2010,18(6):183-185.Ming Qi,Mei Xinli,Li Changqing.Design of driver circuit for wide range continuous and pulse LD[J].International Electronic Elements,2010,18(6):183-185.
[10]邓军,单江东,张娜,等.大功率半导体激光器驱动器的研究与设计[J].半导体光电,2003,24(05):319-320,370.Deng Jun,Shan Jiangdong,Zhang Na,et al.Research and Design of High-power Semiconductor Laser Diode Driver[J].Semiconductor Optoelectronics,2003,24(5):319-320,370.
[11]Abraham I.Pressmen.Switching Power Supply Design[M].New York:Mc Graw-Hill,1998.
[12]周进,何志琴,杨睿琬,等.DC/DC变换器Buck电路建模分析与控制研究[J].电测与仪表,2017,54(9):95-100.Zhou Jin,He Zhiqin,Yang Ruiwan,et al.Modeling analysis and control research of DC/DC converter Buck circuit[J].Electrical Measurement&Instrumentation,2017,54(9):95-100.
[13]段翔兮,佃松宜,郑万里.基于离散演化映射的DC/DC变换器混合逻辑动态建模[J].电测与仪表,2017,54(3):7-13.Duan Xiangxi,Dian Songyi,Zheng Wanli.Mixed logical dynamical modeling of DC/DC converter based on discrete evolution mapping[J].Electrical Measurement&Instrumentation,2017,54(3):7-13.