The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

A Constant Current Controller Design for Power LED Drive

파워 LED 구동을 위한 정전류 제어기 설계

  • 김응석 (한라대학교 제어계측공학과) ;
  • 김철진 (한라대학교 제어계측공학과)
  • Published : 2010.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the constant current controller is designed to regulate the driving current of a power LED. The controller design model of the power LED including its driving circuit is proposed to design the constant current controller. A buck converter is also introduced to drive the power LED. The PI-based digital controller is implemented to validate the proposed strategy for the power LED driving.

Keywords

References

  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.
  2. A.F. Witulski and R.W. Erickson, " Design of the Series Resonant Converter for Minimum Stress", IEEE Trans on Aerosp. Electron System, Vol. AES-22, pp.356-363.
  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. Ridley, R.B., "A New, Continuous-Time Model for Current Mode Control," IEEE Transactions on Power Electronics, Vol. 6, Issue 2, pp. 271-280, 1991. https://doi.org/10.1109/63.76813
  7. Tan, F.D. and Middlebrook, R.D., "A Unified Model for Current-Programmed Converters," IEEE Transactions on Power Electronics, Vol. 10, Issue 4, pp. 397-408, 1995. https://doi.org/10.1109/63.391937
  8. K. Morihori, Y. Ishizuka, H. Matsuo, "Consideration of A Drive Circuit for LED with Constant-Current Control", IEICE Technical Report EE 2004-68(2005-02), pp. 13-19, February, 2005.
  9. M. Nishikawa, K. Morihori, Y. Ishizuka, H. Matsuo, "Static Characteristics of A Drive Circuit for LED with Constant-Current Control", Annual Conference of IEI-J, pp.251, July, 2005.
  10. Stephen Bowling, "A Digital Constant Current Power LED Driver," Microchip Technology Inc. 2007.
  11. 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.
  12. C. J. Kim, E. S. Kim, H. K. Shin, "A Study on the Power LEDs Drive Circuit Design with Asymmetrical Half-bridge Resonant Converter", ICEMS2009, DS1G4-11, Nov. 2009.