| 基于大功率LED灯网的四热阻自动测量仪 |
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| 引用本文： | 段秀娟,靳斌,黄永晶,尚小华,康健.基于大功率LED灯网的四热阻自动测量仪[J].西华大学学报(自然科学版),2017,36(6):36-39, 50. |
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| 作者姓名： | 段秀娟 靳斌 黄永晶 尚小华 康健 |
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| 作者单位： | 1.西华大学电气与电子信息学院，四川 成都 610039 |
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| 基金项目： | 教育部春晖计划Z2014076 |
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| 摘 要： | 结温是表征LED性能的重要指标，与热阻有着密切关系，直接影响LED寿命。利用LED半导体器件结电压与结温的良好线性关系，测量大功率LED灯网工作时的电压、电流、热沉温度等参数，基于电学参数法，提出一种LED的四热阻模型，在该模型基础上，设计并制作了大功率LED灯网热阻自动测量仪。该仪器能快速准确地实现大功率LED灯网热阻的自动测量。
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| 关 键 词： | LED 热阻 自动测量 四热阻理论 结电压 结温 |
| 收稿时间： | 2017-06-20 |
Automatic Measuring Instrument of Four Thermal Resistance Model Based on High Power LED Lamp Net |
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| DUAN Xiujuan,JIN Bin,HUANG Yongjing,SHANG Xiaohua,KANG Jian.Automatic Measuring Instrument of Four Thermal Resistance Model Based on High Power LED Lamp Net[J].Journal of Xihua University:Natural Science Edition,2017,36(6):36-39, 50. |
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| Authors: | DUAN Xiujuan JIN Bin HUANG Yongjing SHANG Xiaohua KANG Jian |
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| Affiliation: | 1.School of Electrical and Electronic information Engineering, Xihua University, Chengdu 610039 China |
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| Abstract: | LED junction temperature is an important indicator of its performance and is relevant to its thermal resistance. It impacts on LED life. In this paper, the fourthermal resistance theory of LED is proposed and analyzed by measuring the voltage, current and heat sink temperature of high-power LED lamp net based on the good linear relationship between junction voltage and junction temperature of LED semiconductor device. An automatic measuring instrument was developed for high-power LED light grid thermal resistance. It can perform the automatic testing of the high-power LED light network thermal resistance quickly and accurately. |
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