太阳辐照度光谱仪光谱定标用汞灯电源设计
为了满足FY-3太阳辐照度光谱仪的星上光谱定标要求,针对汞灯高起辉电压、低工作电压的特点设计了一种汞灯电源。采用单端反激拓扑结构及四级倍压整流电路实现了汞灯高压起辉,通过闭环负反馈实现了汞灯工作电流的恒流控制;无需外加微控制器,完成了汞灯高起辉电压和低工作电压的自动切换,并且在保证电源稳定性的同时,解决了现有汞灯电源适用性较差、低温下无法可靠起辉的问题。实验结果表明：设计的汞灯电源电流精度为0.000 21、电流调整率为0.001 8、稳流系数为0.009,在低温下也可稳定驱动汞灯工作,完全满足载荷的任务需求。...
Saved in:
| Published in | 电子技术应用 Vol. 43; no. 6; pp. 3 - 6 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院 长春光学精密机械与物理研究所,吉林 长春,130033
2017
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 0258-7998 |
| DOI | 10.16157/j.issn.0258-7998.2017.06.001 |
Cover
| Summary: | 为了满足FY-3太阳辐照度光谱仪的星上光谱定标要求,针对汞灯高起辉电压、低工作电压的特点设计了一种汞灯电源。采用单端反激拓扑结构及四级倍压整流电路实现了汞灯高压起辉,通过闭环负反馈实现了汞灯工作电流的恒流控制;无需外加微控制器,完成了汞灯高起辉电压和低工作电压的自动切换,并且在保证电源稳定性的同时,解决了现有汞灯电源适用性较差、低温下无法可靠起辉的问题。实验结果表明：设计的汞灯电源电流精度为0.000 21、电流调整率为0.001 8、稳流系数为0.009,在低温下也可稳定驱动汞灯工作,完全满足载荷的任务需求。 |
|---|---|
| Bibliography: | solar irradiance spectrometer ; spectral calibration ; mercury-lamp source ; single-ended flyback ; current control Zhang Heng, Ma Qingjun, Wang Longqi, Wang Shurong （Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China） 11-2305/TN In order to satisfy the requirement of solar irradiance spectrometer spectral calibration on the satellite, a mercury-lamp source is designed based on its characteristics which can be described as high voltage to glow and low voltage for work. The single-ended fly- back topological structure and four level dual voltage rectifier are used to provide the high glowing voltage. And the degenerative feed- back is designed to current constant. The glowing voltage and working voltage can be switched automatically without the microcontroller. Both the usability and the reliability in low temperature of the source are improved. The experiments show that the current precision of the mercury-lamp source designed is 0.000 21, the current |
| ISSN: | 0258-7998 |
| DOI: | 10.16157/j.issn.0258-7998.2017.06.001 |