Single-Stage Flyback Power-Factor-Correction Front-End for HB LED Application

This paper presents a single-stage flyback power- factor-correction (PFC) front-end for high-brightness light- emitting-diode (HB LED) applications. The proposed PFC front-end circuit combines the PFC stage and the dc/dc stage into a single stage. Experimental results obtained on a 78-W (24- V/ 3.25-A) prototype circuit show that at VIN = 110 Vac, the proposed PFC front-end for HB LED applications can achieve an efficiency of 87.5%, a power factor of 0.98, and a total harmonic distortion (THD) of 14% with line-current sharmonics that meet the IEC 61000-3-2 Class C standard. Index terms ⎯ Driver, high-brightness light emitting diodes (HB LEDs), power factor correction (PFC), single-stage, flyback

[1]  Pan TianFu,et al.  An Improved Single-Stage Flyback PFC Converter for High-Luminance Lighting LED Lamps , 2007, 2007 8th International Conference on Electronic Measurement and Instruments.

[2]  S. Yuvarajan,et al.  Quasi-Active Power Factor Correction Circuit for HB LED Driver , 2007, IEEE Transactions on Power Electronics.

[3]  L. Huber,et al.  Single-stage single-switch input-current-shaping technique with reduced switching loss , 2000 .

[4]  Keyue Smedley,et al.  A topology survey of single-stage power factor corrector with a boost type input-current-shaper , 2001 .

[5]  S. Buso,et al.  Analysis of a High-Power-Factor Electronic Ballast for High Brightness Light Emitting Diodes , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[6]  Masao Nakagawa,et al.  Fundamental analysis for visible-light communication system using LED lights , 2004, IEEE Transactions on Consumer Electronics.

[7]  Huang-Jen Chiu,et al.  An improved single-stage Flyback PFC converter for high-luminance lighting LED lamps , 2008 .

[8]  J.Y. Tsao,et al.  Solid-state lighting: lamps, chips and materials for tomorrow , 2005, (CLEO). Conference on Lasers and Electro-Optics, 2005..

[9]  R. Redl,et al.  A new family of single-stage isolated power-factor correctors with fast regulation of the output voltage , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[10]  Fred C. Lee,et al.  Voltage and current stress reduction in single-stage power factor correction AC/DC converters with bulk capacitor voltage feedback , 2002 .

[11]  N. Narendran,et al.  Life of LED-based white light sources , 2005, Journal of Display Technology.