Integrated Off-Line Ballast for High Brightness LEDs with Dimming Capability
作者： Jorge Garcia , Antonio J. Calleja , Emilio L. Corominas , David Gacio , Lidia Campa
关键词:
摘要: This paper presents an off-line integrated full ballast to supply a 35W assembly of Power LEDs. The proposed solution integrates input PFC stage (a flyback converter operating in DCM) and DC-DC output buck converter) into single switch power stage, with peak current control. As it will be shown, this control scheme maintains the through load constant, regardless instantaneous value DC link voltage. issue allows use small capacitor for link, which enhances overall system reliability. complete has dimming capability, all analysis design steps are presented, thus ensuring fulfilling existing regulations. novelty final comes from simplicity robustness compact single-switch stage. A prototype been built tested, experimental results shown last part paper. Finally, conclusions future developments shown.
sci-hub.st 参考文章(21)
M. Rico-Secades, J. Garcia, J. Cardesin, A.J. Calleja, Using Tapped-Inductor Converters as LED Drivers ieee industry applications society annual meeting. ,vol. 4, pp. 1794- 1800 ,(2006) , 10.1109/IAS.2006.256779
Yuan Fang, Siu-Hong Wong, Lawrence Hok-Sun Ling, A Power Converter with Pulse-Level-Modulation Control for Driving High Brightness LEDs applied power electronics conference. pp. 577- 581 ,(2009) , 10.1109/APEC.2009.4802715
Marc Dyble, Nadarajah Narendran, Andrew Bierman, Terence Klein, Impact of dimming white LEDs: chromaticity shifts due to different dimming methods Proceedings of SPIE. ,vol. 5941, pp. 291- ,(2005) , 10.1117/12.625924
Yuequan Hu, Milan M. Jovanovic, LED Driver With Self-Adaptive Drive Voltage IEEE Transactions on Power Electronics. ,vol. 23, pp. 3116- 3125 ,(2008) , 10.1109/TPEL.2008.2004558
D. Gacio, J. M. Alonso, J. Garcia, L. Campa, M. J. Crespo, M. Rico-Secades, PWM Series Dimming for Slow-Dynamics HPF LED Drivers: the High-Frequency Approach IEEE Transactions on Industrial Electronics. ,vol. 59, pp. 1717- 1727 ,(2012) , 10.1109/TIE.2011.2130503
N. Narendran, Y. Gu, Life of LED-based white light sources IEEE\/OSA Journal of Display Technology. ,vol. 1, pp. 167- 171 ,(2005) , 10.1109/JDT.2005.852510
J. Garcia, A. J. Calleja, E. L. Corominas, D. Gacio, J. Ribas, Electronic driver without electrolytic capacitor for dimming High Brightness LEDs conference of the industrial electronics society. pp. 3518- 3523 ,(2009) , 10.1109/IECON.2009.5415167
P. Narra, D.S. Zinger, An effective LED dimming approach ieee industry applications society annual meeting. ,vol. 3, pp. 1671- 1676 ,(2004) , 10.1109/IAS.2004.1348695
D. Gacio, J. M. Alonso, J. Garcia, L. Campa, M. Crespo, M. Rico-Secades, High frequency PWM dimming technique for high power factor converters in LED lighting applied power electronics conference. pp. 743- 749 ,(2010) , 10.1109/APEC.2010.5433585
Dustin Rand, Brad Lehman, Anatoly Shteynberg, Issues, Models and Solutions for Triac Modulated Phase Dimming of LED Lamps power electronics specialists conference. pp. 1398- 1404 ,(2007) , 10.1109/PESC.2007.4342199