| 一种测量功率型LED热阻的方法 |
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| 引用本文： | 肖炜,刘一兵.一种测量功率型LED热阻的方法[J].低温与超导,2011,39(6):80-82. |
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| 作者姓名： | 肖炜 刘一兵 |
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| 作者单位： | 邵阳职业技术学院机电工程系,邵阳,422000 |
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| 基金项目： | 湖南省科技计划项目(2010GK3182).邵阳市科技计划项目 |
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| 摘 要： | 叙述了正向电压法测量功率型LED温度系数K和热阻的原理,介绍了测试装置及具体测试过程,对蓝宝石衬底正装LED和硅衬底倒装LED的温度系数和热阻进行了测量.选用热阻已知的LED样品,对其实际值与测量值进行了比较,误差在5% 左右,证实了这种热阻测量方法是可行的.
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| 关 键 词： | 功率型LED 结温 热阻 测量 |
A measuring method for thermal characteristics of power type LED |
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| Xiao Wei,Liu Yibing.A measuring method for thermal characteristics of power type LED[J].Cryogenics and Superconductivity,2011,39(6):80-82. |
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| Authors: | Xiao Wei Liu Yibing |
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| Institution: | (Department of Mechanical and Electric,Shaoyang Professional-Technology College,Shaoyang 422000,China) |
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| Abstract: | The forward voltage measurement principle of the thermal resistance and temperature coefficient K was investigated.Test device and the specific testing process were introduced,temperature coefficient and thermal resistance of two kinds of LED,such as LED on sapphire and silicon substrates flip-mounted LED were measured.Choosing a LED sample and comparing its thermal resistance with the measured values,the error was about 5%.The fact confirms this resistance measurement method is feasible. |
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| Keywords: | Power type LED Junction temperature Thermal resistance Measurement |
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