无电解电容的改进型SEPIC LED照明驱动

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Abstract High brightness lighting emitting diode (HB-LED) has attracted a lot of attention from both industry and academic for its high efficacy, simple to drive, environmentally friendly, long lifespan and small size. Typically, the power supply for LED requires high power density in addition to high efficiency, high power factor and low cost. The size of electrolytic capacitor used as storage capacitor is usually large, but also it has the key drawback with short lifespan. These hamper the improvement on LED lighting products. This paper presents a new proposal of LED lamp driver using the SEPIC-derived converter as PFC pre-regulator with twin-bus output. The SEPIC-derived break the low frequency power loop of the conventional SEPIC converter; therefore SEPIC-derived do not need the large capacity output capacitor to meet the output voltage ripple requirement. The basic operating principle and analysis is introduced in detail. A prototype of a 50W SEPIC-derived has been built and tested to verify the feasibility of the proposed LED lamp driver. The experimental results show that the efficiency is exceeding 92% and power factor is not less than 0.96.

Key words： Power factor LED SEPIC electrolytic capacitor twin-bus

Received: 03 November 2010 Published: 20 March 2014

PACS:

TM461.2

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	Ma Hongbo
	Zheng Cong
	Yu Wensong

Cite this article:

Ma Hongbo,Zheng Cong,Yu Wensong. The SEPIC PFC Without Electrolytic Capacitor for Offline LED Lighting Application[J]. Transactions of China Electrotechnical Society, 2012, 27(6): 139-146.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I6/139

[1] 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.
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.
[2] 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.
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.
[3] 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.
[4] 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.
Liao Zhiling, Ruan Xinbo. Present status and developing trend of the semiconductor lighting[J]. Transactions of China Electrotechnical Society, 2006, 21(9): 106-111.
[5] Tsao J Y. Solid-state lighting: lamps, chips and materials for tomorrow[J]. IEEE Circuits Devices Mag, 2004, 20(3): 28-37.
[6] 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.
[7] Craford M G. LED’s challenge the incandescent[J]. IEEE Circuits and Device Mag, 1992, 8(1): 24-29.
[8] 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.
[9] 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.
[10] 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.
[11] 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.
[12] 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.
[13] 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.
[14] 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.