| 大功率LED有源温控系统的开发 |
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| 引用本文： | 刘世俊,刘超.大功率LED有源温控系统的开发[J].现代电子技术,2011(24):195-198. |
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| 作者姓名： | 刘世俊 刘超 |
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| 作者单位： | 上海宇航系统工程研究所上海市空间飞行器机构重点实验室; |
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| 基金项目： | 上海市科学技术委员会基金资助项目(10XD1422900) |
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| 摘 要： | 由于大功率LED供电时其大部分能量转化为热能,如果热量不能有效散出,将严重影响其光照亮度及其使用寿命。为了大功率LED散热的实际需要,提出并实现了一种LED有源温控系统的开发,采用热电制冷效应,使用LED驱动器本身作为制冷器的驱动电源,同时建立基于半导体传感器的温控监测电路,通过内部数字PI调节器形成一个完整的闭环控制系统,最后获得LED有源温控系统的具体配置方式,并分析测试的数据结果,展示了有源温控系统的准确性和可靠性。
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| 关 键 词： | 电力电子 有源温控 电桥 LED |
Development of Active Temperature Control System for High-power LED |
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| LIU Shi-jun,LIU Chao.Development of Active Temperature Control System for High-power LED[J].Modern Electronic Technique,2011(24):195-198. |
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| Authors: | LIU Shi-jun LIU Chao |
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| Affiliation: | LIU Shi-jun,LIU Chao(Shanghai Key Laboratory of Spacecraft Mechanism,Shanghai Institute of Aerospace System Engineering,Shanghai 201108,China) |
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| Abstract: | Most of the power energy of high-power LEDs convert into the heat energy when it is turned on.The light intensity and life time of high-power LED will be influenced seriously if the heat energy can not be diffused efficently.Considering the actual demand of the high-power LED heat dissipation,a LED active temperature control system is presented in this paper.The LED driver is used as the refrigeration driver power supply of TEC.The temperature monitoring circuit based on the semiconductor transducer is made... |
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| Keywords: | power electronics active temperature control electronic bridge LED |
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