조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제25권9호
  • /
  • Pages.8-13
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  • 2011
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  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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파워 LED의 수학적 모델링 및 정전류 적응 제어기 설계에 관한 연구

A Study on the Mathematical Modeling and Constant Current Adaptive Controller Design for Power LEDs

  • 김응석 (한라대학교 제어계측공학과) ;
  • 김영태 (강릉원주대학교 전기공학과)
  • 투고 : 2011.07.11
  • 심사 : 2011.08.12
  • 발행 : 2011.09.30
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초록

In this paper, a mathematical model of the power LED system including the drive circuit will be presented to control the power LEDs current. Using this mathematical model, the constant current adaptive controller will be designed. A constant current drive circuit for power LEDs will be configured using Buck-type converter. Precise constant current controller design is enabled by presenting the mathematical model of power LEDs including the current driving circuits. Using the mathematical model of power LEDs and its drive circuits, the constant current adaptive controller will be designed to obtain the robustness for the parameter uncertainties. In order to verify the validity of the proposed controller, computer simulations are performed.

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참고문헌

  1. R. Sheehan, "Current-Mode Modeling for Peak, Valley and Emulated Control Methods-Reference Guide for Fixed-Frequency, Continuous Conduction-Mode Operation," National Semiconductor, http://www.techonline.com, July 2007.
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  3. B.Yang, F.C.Lee et al., "Over current Protection Methods for LLC Resonant Converter", APEC 2003,pp605-609.
  4. Yilei Gu, Zhengyu, et al, "Three-level LLC series resonant DC-DC converter". IEEE Trans. on Power Electronics, Vol. 20, July 2005, pp781-789. https://doi.org/10.1109/TPEL.2005.850921
  5. Sheehan, Robert, "Emulated Current Mode Control for Buck Regulators Using Sample and Hold Technique," Power Electronics Technology Exhibition and Conference, PES02, October 2006.
  6. Stephen Bowling, A Digital Constant Current Power LED Driver, Microchip Technology Inc. Application Notes AN1138, November 2007.
  7. S. Sastry and M. Bodson, Adaptive Control - Stability, Convergence, and Robustness, Prentice-Hall Advanced Reference Series, 1989.
  8. K. S. Narendra and A. M. Annaswamy, Stable Adaptive Systems, Prentice-Hall International Editions, 1989.
  9. C. J. Kim, N. J. Choi, H. J. Lee, E. S. Kim, "A Digital LED Controller design with Constant Current", KIEE Proceeding, CD PEP 34, Jul. 2009.

피인용 문헌

  1. Evaluation of the Lighting Characteristics in High Power White LED Module with Cooling Condition vol.26, pp.12, 2012, https://doi.org/10.5207/JIEIE.2012.26.12.001
  2. The Reduction Method of Strings Current Unbalancing in LED Lighting Driving System vol.27, pp.5, 2013, https://doi.org/10.5207/JIEIE.2013.27.5.026