| 一种单星模拟器光源控制系统设计 |
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| 引用本文： | 翁寅生,谢正茂,何俊华,翁方煜.一种单星模拟器光源控制系统设计[J].电子技术应用,2011,37(3):42-43,47. |
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| 作者姓名： | 翁寅生 谢正茂 何俊华 翁方煜 |
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| 作者单位： | 翁寅生,谢正茂,何俊华,Weng Yinsheng,Xie Zhengmao,He Junhua(中国科学院西安光学精密机械研究所,陕西,西安,710119);翁方煜,Weng Fangyu(中国电子科技集团第三十三研究所,山西,太原,030006) |
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| 摘 要： | 采用大功率LED做点光源,用专用的LED控制芯片代替单片机电路,设计了一种光源可调的微型闭环控制系统.该系统通过光电接收放大电路将光电流采样成电压放大后反馈给控制驱动电路,控制驱动电路根据此电压信号调整输出给LED两端的电压,从而控制光源的稳定性.
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| 关 键 词： | 大功率LED PT4105 光源稳定 光源控制 照度 |
Design and implement of light source control system of single star simulator |
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| Weng Yinsheng,Xie Zhengmao,He Junhua,Weng Fangyu.Design and implement of light source control system of single star simulator[J].Application of Electronic Technique,2011,37(3):42-43,47. |
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| Authors: | Weng Yinsheng Xie Zhengmao He Junhua Weng Fangyu |
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| Abstract: | A kid of subminiature closed-loop control system of adjustable light source was designed.High-power led was applied as dot light source and special led control chip was applied in place of complicated MCU circuit.After the circuit's sampling the current and magnifying the voltage to feed back,control and drive circuit adjusted the voltage to led according to the voltage feedback,and thus it can control the stability of the light source.Practical project results show that the control system can fit the contr... |
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| Keywords: | PT4105 |
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