本論文旨在研製一高亮度LED驅動電路，此電路將依LED的溫度變化而改變驅動電流，使高亮度LED能持續操作於高發光效率。在本論文中首先量測高亮度LED於各不同電流時的電氣及光學特性，並分析溫度對高亮度LED發光效率之影響。當高亮度LED操作於高發光效率時，可使高亮度LED的輸入功率得到有效之運用，進而改善高亮度LED之溫升。為了驗證高效率驅動的可行性，本文中利用單晶片微處理器、感測電路及調光控制電路來建構一個20W的高亮度LED驅動電路，最後藉由實驗驗證確實可利用改變驅動電流，將高亮度LED操作於高發光效率。

The purpose of this thesis is to develop a driving circuit for high brightness LED. The driving current of the driving circuit can be adjusted by temperature of high brightness LED that is in order to operate the high brightness LED on high luminous efficiency. First, to measure the electric and optical characteristic of high brightness LED is operated on different constant current, and to analyze the temperature effect of high brightness LED. Operating the high brightness LED on high luminous efficiency can reduce power consumption and improve thermal problems. For verification purpose, a 20W high brightness LED driving circuit is designed and built. The High brightness LED driving circuit is implemented on a PIC microprocessor, sensor circuit, and dimming controller. Finally, experimental result shows that high brightness LED can operates on high luminous efficiency by various driving current.

[1] 史光國，半導體發光二極體及固態照明，全華科技圖書股份有限公司，2006。
[2] 劉如熹、王健源，白光發光二極體製作技術，全華科技圖書股份有限公司，2003。
[3] 周志敏、周紀海、紀愛華，LED驅動電路設計與應用，五南圖書出版股份有限公司，2008。
[4] 紀國鐘、蘇炎坤，光電半導體技術手冊，經濟部技術處，2002。
[5] 陳隆建，發光二極體之原理與製程，全華科技圖書股份有限公司，2008。
[6] D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J Sel. Topics Quantum Electron., vol. 8, no. 2, pp. 310-320, 2002.
[7] 陳品翰，圓型疊層壓電變壓器應用於白光發光二極體驅動電路之研究，國立成功大學電機工程學系碩士論文，2006。
[8] S. Peralta and H. Ruda, “Applications for advanced solid-state lamps,” IEEE Ind. Appl. Mag., vol. 4, pp. 31-42, 1998.
[9] 李農、楊燕，照明手冊，照明學會，2006。
[10] 李麗玲，淺談建築物之照明節能，工研院，2007
[11] 吳登峻、梁瑋耘、莊柏年，LED量測標準探究系列(五)，第268期，新電子科技雜誌。
[12] CNS-15233、CNS-15249、CNS-15250，經濟部標準檢驗局，2008-2009。

[13] V. B. Heinz, S. Georg, and W. Matthias, “Power driver topologies and control schemes for LEDs,” in Proc. IEEE APEC’07, 2007, pp. 1319-1325.
[14] PG1x-1LxS Data Sheet, ProLight Opto Technology Inc, 2008.
[15] M. Nishikawa, Y. Ishizuka, H. Matsuo, and K. Shigematsu, “An LED drive circuit with constant-output-current control and constant luminance control,” in Proc.IEEE INTELEC’06, 2006, pp. 1-6.
[16] M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light emitting diodes for Solid-State lighting,” J.Display Technol., vol. 3, no. 2, pp. 160-175, 2007.
[17] L. Yuan, S. Liu, M. Chen, and X. Luo, “Thermal analysis of high power LED array packaging with microchannel cooler,” in Proc. IEEE ICEPT’06, 2006, pp. 1-5.
[18] I. H. Oh, “An analysis of current accuracies in peak and hysteretic current controlled power LED drivers,” in Proc. IEEE APEC’08, 2008, pp. 572-577.
[19] H. J. Chiu and S. J. Cheng, “LED backlight driving system for large-scale LCD panels,” IEEE Trans. Ind. Electron., vol. 54, pp. 2751-2760, 2007.
[20] M. R. Secades, A. J. Calleja, J. Cardesin, J. Ribas, E. L. Corominas, J. M. Alonso, and J. Garcia, “Driver for high efficiency LED based on flyback stage with current mode control for emergency lighting system,” in Proc. IEEE IAS’04, 2004, pp. 1655-1659.
[21] 曾偉菁，發光二極體發光特性與其驅動電路之研究，國立成功大學電機工程學系碩士論文，2006。
[22] Texas Instruments Inc., “LED driver considerations,” Analog Application Journal, 2004.
[23] N. Prathyusha and D. S. Zinger, “An effective LED dimming approach,” in Proc. IEEE IAS’04, 2004, pp. 1671-1676.
[24] I. H. Oh, “A Single-Stage power converter for a large screen LCD back-lighting,” in Proc. IEEE APEC’06, 2006, pp. CD-ROM.
[25] A.E. Demian, J. Reginaldo de Britto, L.C. de Freitas, V.J. Farias, E.A.A. Coelho, and J.B. Vieira, “Microcontroller-based quadratic buck converter used as LED lamp driver,” 12th European Conference on Power Electronics and Applications, EPE. Proceedings, Aalborg, Denmark, 2007, pp. 1-6.
[26] D. R. Nuttall, R. Shuttleworth, and G. Routledge, “Design of a LED street lighting system,” in Proc. IET PEMD’08, 2008, pp. 436-440.
[27] M. R. Secades, J. Garcia, J. Cardesin, and A. J. Calleja, “Using tapped-inductor converters as LED drivers,” in Proc. IEEE IAS’06, 2006, pp. 1794-1800.
[28] 梁適安，交換式電源供應器之理論與實務設計，全華科技圖書股份有限公司，2001。
[29] N. Mohan, T. M. Undeland, and W. P. Robbins, Power Electronics, 3rd ed., New York: John Wiley & Sons, 2003.
[30] S. Winder, Power Supplies for LED Driving. Burlington, MA: Newnes, 2008, pp. 39-60.
[31] A. J. Calleja, A. Torres, J. Garica, M. R. Secades, J. Ribas, and J. A. Martines, “Evaluation of power LEDs drivers with supercapacitors and digital control,” in Proc. IEEE IAS’07, 2007, pp. 1129-1134.
[32] A. Torres, J. Garica, M. R. Secades, A. J. Calleja, and J. Ribas, “Advancing towards digital control for low cost high power LED drivers,” in Proc. IEEE ISIE’07, 2007, pp. 3053-3056.
[33] PIC16F87xA Data Sheet, Microchip Technology Inc., 2003.
[34] 洪正瑞，PIC16F877原理與應用，台科大圖書股份有限公司，2005。
[35] 趙春棠，PIC單晶片學習祕笈：以PIC16F877為例，全威圖書股份有限公司，2007。
[36] INA110 Data Sheet, Texas Instrument Inc., 1993.
[37] INA128 Data Sheet, Texas Instrument Inc., 1995.
[38] HCPL3120 Data Sheet, Agilent Technology Inc., 2005.
[39] 陳永興，冷陰極螢光燈驅動電路之研製，逢甲大學電機工程學系碩士論文，2006。
[40] LM319 Data Sheet, Fairchild Semiconductor Inc., 2001.