전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제60권4호
  • /
  • Pages.253-256
  • /
  • 2011
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  • 1229-800X(pISSN)
  • /
  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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전력 최적제어 기능을 가진 LED 드라이버 설계

LED Driver Design with Power Optimum Control Function

  • 투고 : 2011.10.19
  • 심사 : 2011.11.25
  • 발행 : 2011.12.01
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초록

LEDs have small size, long lifespan, high reliability, low power consumption and high color efficiency. Using such a characteristics, LED Back Light Unit has been studying actively. This paper proposes LED driver to minimize power consumption due to LED forward voltage($V_F$) difference and temperature rising. Compared to conventional LED driver, the proposed driver have excellent stability, brief structure and linear output voltage of DC-DC boost converter. Proposed LED Driver circuit was designed using 0.35um CMOS technology. And its operation was verified through simulation.

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참고문헌

  1. 마커스 루이돌트, "대형 LCD 디스플레이에서 LED 구동하기" 전자부품 2009년 10월호
  2. Maxim-Dalls Semiconductor, "Why drive white LEDs with constant current," Jun. 2004.
  3. S. Y. Tseng, S. C. Lin, and H. C. Lin, "LED backlight power system with auto-tuning regulation voltage for LCD panels," in Proc. IEEE Appl. Power Electron. Conf. (APEC), pp. 551-557, Feb. 2008.
  4. Jae-Hyoun Park, Hyung-Do Yoon "A Switch-Mode Voltage Regulator Optimizes an Active Current Regulator for a LED Driver. ISOCC 2009 , pp. 516-519.
  5. C.-C. Chen, C.-Y. Wu, and T.-F. Wu, "LED Back-Light Driving System for LCD Panels", IEEE APEC 2006, pp.381-385, March. 19, 2006
  6. E.-C. Kang, J.-E. Yeon, D.-S. Kim and D. Kwon "Sequential low-voltage detecting method for multistring LED BLU circuit" ELECTRONICS LETTERS 10th June 2010 Vol. 46 No. 12, pp.839-840. https://doi.org/10.1049/el.2010.3170
  7. Won-Sik Oh, Kyu-Min Cho, Daeyoun Cho, Gun-Woo Moon, Byungchoon Yang, and Taeseok Jang, "A Novel Adaptive Dimming Technique with X-Y Channels for LED Backlight System of LCD TVs", The 7th International Conference on Power Electronics, pp.710-713, October 200