A new cost-effective current-balancing multi-channel LED driver for a large screen LCD backlight units

Journal of Power Electronics

Volumn 10, Issue 4, 2010, Pages 351-356

  Hong, Sung Soo ^a   Lee, Sang Hyun ^a   Cho, Sang Ho ^a   Roh, Chung Wook ^a   Han, Sang Kyoo ^a  

^a Kookmin University   (South Korea)

Author keywords

Backlight unit; Capacitor charge balance; Current balance; LED driver; Multi channel LEDs; PWM dimming

Indexed keywords

EID: 77954707338     PISSN: 15982092     EISSN: None     Source Type: Journal    
DOI: 10.6113/JPE.2010.10.4.351     Document Type: Article

References (13)

1. L. Y. Pan, S. C. Chang, M. Y. Liao, and Y. T. Lin, "The future development of global LCD TV industry", in Proceeding of PICMET, pp. 1818-1821, Aug. 2007.
2. F. Xiaoyun, L. Xiaojian, and W. Yan, "Research and analysis of the design development and perspective technology for LED lighting products", in Proceeding of CAID&CD, pp. 1330-1334, Nov. 2009.
3. M. Doshi and R. Zane, "Digital architecture for driving large LED arrays with dynamic bus voltage regulation and phase shifted PWM", in Proceeding of APEC, pp. 287-293, Mar. 2007.
4. Heinz Van der Broect, Georg Sauerlander, and Matthias Went, "Power driver topologies and control schemes for LEDs", in Proceeding of APEC, pp. 1319-1325, Mar. 2007.
5. Baddela, S. M. and Zinger, D. S, "Parallel connected LEDs operated at high to improve current sharing", in Proceeding of IAS, Vol. 3, pp. 1677-1681, Oct. 2004.
6. Roberts W. Erickson and Dragan Maksinmovic, "Fundamentals of power electronics; 2nd edition", Kluwer Academic, pp. 705-721, 2001.
7. Bo Yang Lee, F. C, Zhang, A. J, and Guisong Huang, "LLC resonant converter for front end DC/DC conversion", in Proceeding of APEC, Vol. 2, pp. 1108-1112, Mar. 2002.
8. Jee-Hoon Jung, Jong-Moon Choi, and Joong-Gi Kwon, "Design methodology for transformers including integrated and center-tapped structures for LLC resonant converters", IEEE Transaction on Journal of Power Electronics, Vol. 9, No. 2, pp. 215-223, 2009.
9. Lee S. T. S., Hui S. Y. R., and Chung H. S.-H., "Practical evaluation of dimming control methods for electronic ballasts", IEEE Transaction on Power Electronics, Vol. 21, Issue 6, pp. 1769-1775, Nov. 2006.
10. S. W. Lee, D. Y. Ko, D. Y. Huh, and Y. I. Yoo, "Simplified control technique for LCD backlight inverter systems using the mixed dimming method", in Proceeding of APEC, pp. 447-453, Mar. 2001.
11. D. Gacio, J. M. Alonso, L. Campa, M. Crespo, and M. Rico-Secades, "High frequency PWM dimming technique for high power factor converters in LED lighting", in Proceeding of APEC, pp. 743-749, Feb. 2010.
12. Prathyusha Narra and Zinger. D. S, "An effective LED dimming approach", in proceeding of IAS, Vol. 3, pp. 1671-1676, Oct. 2004.
13. J. Garcia, A. J. calleja, E. L. Corominas, D. Gacio and J. Ribas, "Electronic driver without electrolynic capacitor for dimming High Brightness LEDs", in Proceeding of IECON, pp. 3518-3523, Nov. 2009.