| 交流发光二极管（AC-LED）结温的测试方法 |
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| 引用本文： | 徐阁,于德鲁,邹兵,许键.交流发光二极管（AC-LED）结温的测试方法[J].照明工程学报,2014(3):38-41. |
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| 作者姓名： | 徐阁 于德鲁 邹兵 许键 |
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| 作者单位： | 上海理工大学教育部光学仪器与系统工程研究中心,上海200093 |
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| 基金项目： | 国家自然科学基金资助项目（项目编号：610728007） |
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| 摘 要： | 目前对交流发光二极管（AC-LED）的结温测试少有研究。将一种新的电学测试方法——阈值电压法应用到AC-LED结温测试当中，并与传统的峰值波长法进行对比。两种测试方法的结温测试结果相差在4℃之内，有较好的一致性。经过分析，当参考阈值电流为1mA时，阈值电压法的测试误差为±2．5℃，峰值波长法的测试误差为±6℃。阈值电压法测试结果更为精确，应用范围更广，更适用于工业测试。
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| 关 键 词： | AC-LED 结温 测试方法 峰值波长法 阈值电压法 |
Methodology of Junction Temperature Characterization of Alternating Current Light-Emitting Diodes |
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| Xu Ge,Yu Delu,Zou Bing,Xu Jian.Methodology of Junction Temperature Characterization of Alternating Current Light-Emitting Diodes[J].China Illuminating Engineering Journal,2014(3):38-41. |
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| Authors: | Xu Ge Yu Delu Zou Bing Xu Jian |
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| Affiliation: | (Engineering Research Center of Optical Instrument and System, Ministry of Education University of Shanghai for Science and Technology, Shanghai 200093, China) |
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| Abstract: | At present, the measurement techniques of the junction temperatures of light emitting diodes （LEDs） are developed for AC-LED. In the present work, a novel approach of threshold voltage method is proposed for junction temperature characterization of AC-LEDs. The new method was tested, and results of which were compared with the traditional peak wavelength method, showing a good agreement within 4℃. Further analysis suggested that the error of the threshold voltage method can be narrowed down to ± 2.5 ℃ when the reference current is chosen as - 1 mA. It is coneluded that the method of threshold voltage is accurate and simple to implement, making it highly suitable for determining the junction temperatures of AC-LEDs in industry. |
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| Keywords: | AC-LED junction temperature measuring methods peak wavelength method thresholdvoltage method |
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