基于不同電流波形下大功率LED芯片光電熱性能研究
王信澤，徐玉珍，林維明
福州大學 電氣工程與自動化學院，福建 福州 350108
摘 要：以不同知名廠家的大功率LED芯片為對象，基于簡化后的熱網絡模型，采用積分球測試系統，分析研究了大功率LED芯片的光通量、光效以及色溫等輸出光性能隨輸入電流和溫度變化的規律。結果表明，在不同輸入電流波形驅動時，大功率LED芯片的輸出特性有所不同且LED的光電特性受溫度的影響明顯。
關鍵詞：大功率LED芯片；光電熱性能；輸出特性
中圖分類號：TN312+.8 文獻標識碼：A 文章編號：1007-3175(2015)04-0005-05
Study on Photoelectric Thermal Performance of High-Power LED Chip Based on Different Current Waveforms
WANG Xin-ze, XU Yu-zhen, LIN Wei-ming
College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Abstract: Taking a high power LED chip produced by different well-known manufacturers as the object, this paper used an integrating sphere testing system based on simplified thermal network model, analyzing the rules of output light performance for the high power LED chip, including its light flux, light efficiency and color temperature, which changed with the input current and temperature. The result shows that under different input current waveforms, the output characteristics of the high power LED chip has different photoelectric performances, and the photoelectric characteristics of the LED are significantly influenced by temperature.
Key words: high power LED chip; photoelectric thermal performance; output characteristic
參考文獻
[1] Tao X, Hui S Y R.A General Photo-Electro-Thermo-Temporal Theory for Light-Emitting Diode(LED) Systems[C]//IEEE Energy Conversion Congress and Exposition(ECCE)，2010：184-191.
[2] Hui S Y R, Qin Y X.A General Photo-Electro-Thermal Theory for Light Emitting Diode(LED) Systems[J].IEEE Transactions on Power Electronics, 2009, 24(8)：1967-1976.
[3] 徐玉珍，林維明.一種簡化變量的新型LED光電熱模型[J].光學學報，2013(5)：230-236.
[4] Tao Xuehui, Chen Huanting, Li Sinan, Hui S Y R. A New Noncontact Method for the Prediction of Both Internal Thermal Resistance and Junction Temperature of White Light-Emitting Diodes[J].IEEE Transactions on Power Electronics, 2012, 27(4)：2184-2192.
[5] Sauerlander G, Hente D, Radermacher H.Driver Electronics for LEDs[C]//41st Industry Applications Conference Annual Meeting, 2006.
[6] 王志斌，張躍賓，王忠東，等.基于熱阻網絡的大功率LED熱管散熱研究[J].應用光學，2012，33(6)：1014-1018.
[7] 李勇，李鵬芳，曾志新.大功率LED典型熱沉結構散熱性能分析[J].半導體光電，2010，31(5)：723-728.
[8] Garcia J, Lamar D G, Costa M A, Alonso J M, Secades M R.An estimator of luminous flux for enhanced control of high brightness LEDs[C]// Proceedings of IEEE PESC, Rhodes, Greece, 2008．
[9] Schmid M, Kuebrich D，Weiland M, Duerbaum T.Evaluation on the Efficiency of Power LEDs Driven with Currents Typical to Switch Mode Power Supplies[C]//Proceedings of IEEE Industry Applications Conference，42nd IAS Annual Meeting，2007.
[10] Negreac，Svasta Paul，Rangu Mariusal, et al.Electro-thermal modeling of power LED using SPICE circuit solver[C]//35th International Spring Seminar on Proceedings of IEEE Electronics Technology (ISSE), 2012.
[11] 肖海清，饒豐，楊帆，等.LED光衰色偏與伏安特性的關系[J].科學技術與工程，2012，20(32)：8532-8535.
[12] Loo K H, Lai Y M, Tan S C, Tse C K.On the color stability of phosphor-converted white leds under dc, pwm, and bilevel drive[J].IEEE Transactions on Power Electronics，2012，27(2)：974-984.
