전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제26권4호
  • /
  • Pages.302-305
  • /
  • 2021
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  • 1229-2214(pISSN)
  • /
  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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입력 전압 범위가 넓은 벅 AC/DC LED 구동기의 역률 개선을 위한 최적 인덕턴스 선택에 관한 연구

A Study on Optimal Selection of Inductance for Power Factor Improvement of Buck AC/DC LED Driver With Wide Input Voltage Range

  • Kim, Marn-Go (Dept. of Control & Instrumen. Eng., Pukyong Nat'l University)
  • 투고 : 2021.01.28
  • 심사 : 2021.03.18
  • 발행 : 2021.08.20
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초록

Selection of the optimal inductance for power factor improvement of a buck AC/DC light-emitting diode (LED) driver with wide input voltage range is described in this study. The power factor change based on the slope compensation is obtained for various normalized output current (NOC) values using discrete-time domain analysis. The possibility of implementing constant slope compensation is described using power factor curves for various NOC values. NOC = 0.5 is chosen for the value of inductance with consideration for the simple implementation and reduction of inductor size. Experimental results of the inductance corresponding to NOC = 0.5 are presented.

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과제정보

이 논문은 부경대학교 자율창의학술연구비(2019)에 의해 연구되었음.

참고문헌

  1. L. Huber, L. Gang, and M. Jovanovic, "Design-oriented analysis and performance evaluation of buck PFC front end," IEEE Trans. Power Electron., Vol. 25, No. 1, pp. 85-94, Jan. 2010. https://doi.org/10.1109/TPEL.2009.2024667
  2. M. G. Kim, "Slope compensation of buck AC/DC LED driver based on discrete-time domain analysis," The Transactions of the Korean Institute of Power Electronics, Vol. 24, No. 3, pp. 205-212, 2019.
  3. M. G. Kim, Y. S. Jung, and N. H. Kim, "An improved discrete-time domain analysis for buck derived AC/DC LED driver," in Proc. 2019 Power Electronics Annual Conf., Korea, pp. 469-470, 2019.
  4. M. G. Kim, "High-performance current-mode-controller design of buck LED driver with slope compensation," IEEE Trans. Power Electron., Vol. 33, No. 1, pp. 641-649, Jan. 2018. https://doi.org/10.1109/TPEL.2017.2671901
  5. Y. T. Jang, and M. Jovanovic, "Bridgeless high-power-factor buck converter," IEEE Trans. Power Electron., Vol. 26, No. 2, pp. 602-611, Feb. 2011. https://doi.org/10.1109/TPEL.2010.2068060
  6. M. G. Kim, "Error amplifier design of peak current controlled (PCC) buck LED driver," IEEE Trans. Power Electron., Vol. 29, No. 12, pp. 6789-6795, Dec. 2014. https://doi.org/10.1109/tpel.2014.2304739