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无电解电容的改进型SEPICLED照明驱动

, PP. 139-146

Keywords: 功率因数,LED,SEPIC,电解电容,Twin-Bus

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Abstract:

高功率白光LED因其高光效、长寿命、环保及小体积等优点,已经引起学术界和工业界的广泛关注,有望成为第四代照明光源。通常LED照明的供电电源除了要求高效率、高功率因数、低成本外,还必须具有高功率密度。然而作为储能的电解电容不但体积较大,而且寿命短,不但影响了电源功率密度的提高而且降低了LED驱动的使用寿命。因此本文在研究分析了现有LED照明驱动的基础上,提出了一种改进型SEPIC变换器,并以此为基础,提出了一种新的LED照明驱动。该LED照明驱动以Twin-BusBuck变换器作为LED电流调节器,改进型SEPICPFC作为预处理级。该驱动在满足输入功率因数不低于0.96时,消除了电解电容。一台50W的SEPICPFC的实验样机的测试结果表明了设计的合理性和可行性。

References

[1]  顾琳琳, 阮新波, 姚凯, 等. 采用谐波电流注入法减小储能电容容值[J]. 电工技术学报, 2010, 25(5):142-148.
[2]  Wang Beibei, Ruan Xinbo, Yao Kai, et al. A method of reducing the peak-to-average ratio of LED current for electrolytic capacitor-less AC-DC drivers[J]. IEEE Transaction on Power Electronics, 2010, 25(3): 592-601.
[3]  Tsao J Y. Solid-state lighting: lamps, chips and materials for tomorrow[J]. IEEE Circuits Devices Mag, 2004, 20(3): 28-37.
[4]  Steigerwald D A, Bhat J C, Collins D, et al. Illumination with solid state lighting technology[J]. IEEE Journal of Selected Topics in Quantum Electronics, 2002, 8(2): 310-320.
[5]  Muthu S, Schuurmans F J P, Pashley M D. Red, green, and blue LEDs for white light illumination[J]. IEEE Journal on Selected Topics in Quantum Electronics, 2002, 8(2): 333-338.
[6]  Ye Zhongming, Fred Greenfeld, Liang Zhixiang. Offline SEPIC converter to drive the high brightness white LED for lighting applications[C]. 34th Annual Conference of IEEE Industrial Electronics, 2008: 1994-2000.
[7]  Chiu Huang-Jen, Huang Hsiu-ming, Yang Hong-Tzer, et al. An improved single-stage flyback PFC converter for high-luminance lighting LED lamps[J]. International Journal of Circuit Theory and Application, 2008, 36(2): 205-210.
[8]  Chiu Huang-Jen, Lo Yu-Kang, Chen Jun-Ting, et al. A high-efficiency dimmable LED driver for low- power lighting applications[J]. IEEE Transactions on Industrial Electronics, 2010, 57(2): 735-743.
[9]  沈霞, 王洪诚, 许瑾. 基于SEPIC变换器的高功率因数LED照明电源设计[J]. 电机与控制学报, 2010, 14 (1): 41-46.
[10]  Shen Xia, Wang Hongcheng, Xu Jin. Design of LED lighting power supply with high power factor based on SEPIC converter[J]. Electric Machines and Control, 2010, 14 (1): 41-46.
[11]  Gu Linlin, Ruan Xinbo, Yao Kai, et al. A harmonic current injection to reduce storage capacitance[J]. Transactions of China Electrotecnical Society, 2010, 25(5):142-148.
[12]  廖志凌, 阮新波. 半导体照明工程的现状与发展趋势[J]. 电工技术学报, 2006, 21(9): 106-111.
[13]  Liao Zhiling, Ruan Xinbo. Present status and developing trend of the semiconductor lighting[J]. Transactions of China Electrotechnical Society, 2006, 21(9): 106-111.
[14]  Craford M G. LED’s challenge the incandescent[J]. IEEE Circuits and Device Mag, 1992, 8(1): 24-29.
[15]  Ye Zhongming, Fred Greenfeld, Liang Zhixiang. Design consideration of a high power factor SEPIC converter for high brightness white LED lighting application[C]. IEEE Power Electronics Specialists Conference, 2008: 2657-2663.
[16]  Ye Zhongming, Fred Greenfeld, Liang Zhixiang. Single-stage offline SEPIC converter with power factor correction to drvie high brightness LEDs[C]. Twenty-Fouth Annual IEEE Applied Power Electronics Conference and Exposition, 2009, 546-553.
[17]  Yu W, Lai J, Ma H, et al. High-efficiency DC-DC converter with twin-bus for dimmable LED lighting[J], IEEE Transactions on Power Electronics, 2011, 26(8): 2095-2100.

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