Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Simple Structure LED-Driving Power Converter with High Power Factor

높은 역률을 가지는 단순 구조 LED 구동 전력컨버터

  • Jeong, Gang-Youl (Dept. of Electronic Information Engineering, Soonchunhyang University)
  • Received : 2018.09.07
  • Accepted : 2018.09.19
  • Published : 2018.09.30
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Abstract

This paper proposes the simple structure LED-driving power converter with high power factor. As the proposed power converter combines the PFC boost converter and the conventional flyback converter into only one power conversion circuit, it simplifies the structure of LED-driving power converter. Thus the proposed converter is controlled using only one PWM controller IC, and it achieves high power factor, constant output voltage/current and cost-effectiveness. Therefore the proposed converter is suitable for the industry production and utilization of LED-light-system. In this paper, the operation analysis and design example of the proposed converter are explained, briefly. Also experimental results of the prototype that is implemented based on the designed circuit parameters are shown to validate operation characteristics of the proposed converter.

본 논문에서는 높은 역률을 가지는 단순 구조 LED 구동 직류 전력컨버터를 제안한다. 제안한 전력컨버터는 PFC 부스트 컨버터와 전통적인 플라이백 컨버터를 오직 하나의 전력변환 회로로 병합함으로써 LED 구동 전력컨버터의 구조를 단순화한다. 그리하여 제안한 컨버터는 오직 하나의 PWM 제어기 IC를 이용하여 제어되고 높은 역률과 정출력 전압/전류 및 제작비용의 효율성을 달성한다. 따라서 제안한 컨버터는 LED 조명시스템의 산업 생산과 이용에 적합하다. 본 논문에서는 제안한 컨버터의 동작분석과 설계예시를 간단하게 설명한다. 또한 설계된 회로파라미터들에 근거하여 제작된 프로토타입의 실험결과를 통하여 제안한 컨버터의 동작특성을 입증한다.

Keywords

References

  1. H. -J. Chiu and H. -M. Huang, etc, "An Improved Single-Stage Flyback PFC Convertr for High-Luminance Lighting LED Lamps," International Journal of Circuit Theory and Application, vol.36, pp. 305-201, 2008. DOI:10.1002/cta.404
  2. Z. Ye, F. Greenfeld, and Z. Liang, "Sing-Stage Offline SEPIC Converter with Power Factor Correction to Drive High Brightness LEDs," in Proceeding of the IEEE APEC'09, pp. 546-553, 2009. DOI:10.1109/APEC.2009.4802711
  3. D. Gacio, J. M. Alonso, A. J. Calleja, J. Garcia and M. Rico-Secades, "A Universal-Input Single-Stage High-Power-Factor Power Supply for HB-LEDs Based on Integrated Buck-Flyback Converter," in Proceeding of the IEEE APEC'09, pp. 570-576, 2009. DOI: 10.1109/TIE.2010.2046578
  4. K. Yao, M. Xu, X. Ruan and L. Gu, "Boost-Flyback Single-Stage PFC Converter with Large DC Bus Voltage Ripple," in Proceedings of the IEEE APEC'09, pp. 1867-1871, 15-19 2009. DOI:10.1109/APEC.2009.4802925
  5. L. Gu, X. Ruan, M. Xu, and K. Yao, "Means of eliminating electrolytic capacitor in AC/DC Power Supplies for LED Lightings," IEEE Trans. on Power Electronics, vol.24, no.5, pp. 1199-1408, 2009. DOI:10.1109/TPEL.2009.2016662
  6. H.-J. Chiu, Y.-K. Lo, J.-T. Chen, S.-J. Chang, C.-Y. Lin, and S.-C. Mou, "A High Efficiency Dimmable LED Driver for Low-Power Lighting Applications," IEEE Trans. on Industrial Electronics, vol.57, pp. 735-743, 2010. DOI:10.1109/TIE.2009.2027251
  7. M. Madigan, R. Erickson, and E. Ismail, "Integrated High Quality Rectifier-Regulators," in Proceeding of the PESC'92, pp. 1043-1051, 1992. DOI:10.1109/41.778229
  8. K. Schenk and S. Cuk, "A Single-Switch Single-Stage Active Power Factor Corrector with High Quality Input and Output," in Proceeding of the IEEE PESC'97, pp. 385-391, 1997. DOI:10.1109/PESC.1997.616753
  9. W. Yu, J. -S. Lai, and G. Lisi, etc., "High Efficiency DC-DC Converter with Twin-Bus for Dimmable LED Lighting," in Proceeding of the 2010 IEEE ECCE, pp. 457-462, 2010. DOI:10.1109/TPEL.2011.2104368
  10. K. H. Liu and Y. L. Lin, "Current Waveform Distortion in Power Factor Correction Circuits Employing Discontinuous-Mode Boost Converters," in Proceeding of the IEEE PESC'89, pp. 825-829, 1989. DOI:10.1109/PESC.1989.48565