Abstract：High-brightness light-emitting diode is a promising new generation of green lighting source with the advantages of high efficiency, good optical performance, long lifetime, and environmentally friendly. The lifetime of the LED driver is the bottleneck of the whole system, which limits the LED luminaries’ lifetime. Combined with the requirement of the driving current, a LED driver which is driven by the proposed pulsating current is presented. This method can decrease the power ripple in the bus capacitor. Through theoretical analysis, the volume of the bus capacitor can be decreased to 52.7%, while the bus voltage ripple remains same and the input power is high. A prototype of a 50W LED driver has been built and the experimental results are presented.
倪建军, 张方华, 俞忆洁. 无电解电容的高功率因数AC-DC LED驱动器[J]. 电工技术学报, 2012, 27(12): 79-86.
Ni Jianjun, Zhang Fanghua, Yu Yijie. High Power Factor AC-DC LED Drivers Without Electrolytic Capcitors. Transactions of China Electrotechnical Society, 2012, 27(12): 79-86.
[1] Ann. Anbor’s LED street light program_ICLEI climate innovation invitation[R]. http://www.a2gov.org/government/publicservices/systems_planning/energy/Documents/LED_Summary. pdf. [2] Robert L Henderson. LED streetlight Test project in Raleigh[R]. http://progress-energy.com/ custservice/ shared/LED Street Light Test Project Report. pdf. 2009.4.13. [3] 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 [4] Nuttall D R, Shuttleworth R, Routledge G. Design of a LED street lighting system[C]. Proceedings of IET PEMD, 2008: 436-440. [5] Qin Y X, Chung H S H, Lin DY, et al. Current source ballast for high power lighting emitting diodes without electrolytic capacitor[C]. Proceedings of IEEE Annual Conference of the Industrial Electronics Society, 2008: 1968-1973. [6] Pablo Zumel, Cristina Fernandez. HB-LED driving strategy with reduced storage capacitor based on load modularization[C]. Proceedings of IEEE Applied Power Electronics Conference, 2011: 728-734. [7] Linlin Gu, Xinbo Ruan, Ming Xu, et al. Means of eliminating electrolytic capacitor in AC/DC power supplies for LED lightings[J]. IEEE Transactions on Power Electron, 2009, 24(5): 1399-1408. [8] IEC-1000-3-2 Class C. Harmonics standards for commercial electronic products[S]. [9] ANSI C82. 77-2002. Harmonic emission limits-related power quality requirements for lighting equipment[S]. [10] Spiazzi G, Buso S, Meneghesso G. Analysis of a high-power-factor electronic ballast for high brightness light emitting diodes[C]. Proceedings of IEEE Power Electronics Specialist Conference, 2005: 1494-1499. [11] Wang B, Ruan X, Yao K, et al. A method of reducing the peak-to-average ratio of LED current for electrolytic capacitor-less AC-DC drivers[R]. http://www.cree. com/products/led_docs.asp. [12] Osram corporation datasheets of osram’s LED semiconductors[EB/OL]. http://www.osram.com/osram_ osram_com/Professionals/Opto_Semiconductors_%26_LED/Everything_about_LED85033/index.html. 2010. 3. 5 [13] Aoyama Y, Yachi T. A LED module array system designed for streetlight use[C]. Energy 2030 Conference, 2008: 1-5. [14] Rubycon corporation. Application notes of electrolytic capacitors of rubycon[EB/OL]. http://www.rubycon. co.jp/ en/products/alumi/technote.html. 2010. 3. 5. [15] Buso S, Spiazzi G, Meneghini M, et al. Performance degradation of high-brightness light emitting diodes under DC and pulsed bias[J]. IEEE Transactions on Device and Mater, 2008, 8(2): 312 -322. [16] H De Lange Dzn. Research into the dynamic nature of the human fovea →Cortex systems with intermitent and modulated light with white and colored light[J]. J. Opt. Soc. Am., 1958, 48: 777-784 . [17] Melanie J M, Charlene B Y K, Adena Svingos, et al. Fovea flicker sensitivity in healthy aging eyes I: compensating for pupil variation[J]. J. Opt. Soc. Am. A. 1988, 5(12): 2201-2209. [18] Kim C B Y, Mayer M J. Fovea flicker sensitivity in healthy aging eyes. II cross-sectional aging trends from 18-77 years of age[J]. J. Opt. Soc. Am. A, 1994, 11(7): 1958-1969. [19] ANSI C82. 77-2002. Harmonic emission limits-related power quality requirements for lighting equipment[S]. Marc Dyble, Nadarajah Narendran, Andrew Bierman, et al. Impact of dimming white LEDs: Chromaticity shifts due to different dimming methods[C]. Proceedins of 5th International Conference on Solid State Lighting, SPIE 2005. [20] Loo K H, Laiy Y M, Tany S C, et al. On the color stability of phosphor-converted white LEDs under DC, PWM, and bi-level drive[J]. IEEE Transactions on Power Electron, 2012, 27(2): 974-984. [21] Lun Waikeung, Loo K H, Tan Siewchong, et al. Bilevel current driving technique for LEDs[J]. IEEE Transactions on Power Electronics, 2009, 24(12): 2920-2932.
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