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Study of Single Stage PFC DCM Flyback Power Supply for a LED Lamp

LED 램프를 위한 불연속 모드를 갖는 단일단 PFC 플라이백 파워서플라이의 연구

  • La, Jae-Du (Dept. of Electrical Information, Inha Technical College)
  • Received : 2016.11.04
  • Accepted : 2016.11.21
  • Published : 2016.12.01

Abstract

A light-emitting diode (LED) has been increasingly applied to various industrial fields and general lightings because of its high efficiency, low power consumption, environment-friendly characteristic and long lifetime. To drive the LED lighting, a power converter with the constant output current is needed. Among many power converters, the flyback converter is chosen by many converter designers due to high power density, structural simplicity, and miniaturization. In this converter, an electrolytic capacitor is generally chosen for the stabilization of the DC voltage because of having the large capacitance and the low price. However, the disadvantages are the short expected life time and 120Hz ripple currents on the converter output node. In this paper, a single-stage dimmable PFC DCM flyback converter without the electrolytic capacitor is proposed to prolong the lifetime of the LED driver. For the long lifetime of the converter, the polyester film capacitor with the small capacitance is substituted for the electrolytic capacitor on the output node and an LC resonant filter is added to damp 120Hz ripple current. The proposed converter is verified through the simulation and the experimental works.

Keywords

References

  1. Y. Zhongming, F. Greenfeld, L. Zhixiang, "A topology study of single-phase offline AC/DC converters for high brightness white LED lighting with power factor pre-regulation and brightness dimmable," Industrial Electronics, 2008. IECON 2008 7. 34th Annua lConference of IEEE, pp. 1961-1967, Nov. 2008.
  2. X. Xie, J. Wang, C. Zhao, Q. Lu, "A Novel Output Current Estimation and Regulation Circuit for Primary Side Controlled High Power Factor Single-Stage Flyback LED Driver," IEEE Transactions on Power Electronics, vol. 27, no. 11, pp.4602-4612, Nov. 2012. https://doi.org/10.1109/TPEL.2012.2190523
  3. Y. Li, C. Chen, "A Novel Primary-Side Regulation Scheme for Single-Stage High-Power-Factor AC-DC LED Driving Circuit", IEEE Transactions on Industrial Electronics, vol. 60, no. 11, pp.4978-4986, Nov. 2013. https://doi.org/10.1109/TIE.2012.2224080
  4. IEC Std. 61000-3-2. Electromagnetic compatibility. Part 3 : Limits. Section 2 : Limits for harmonic current emissions(equipment input current $\leq$ 16A per phase), 1995.
  5. H. Ma, J. Lai, Q. Feng, W. Yu, C. Zeng, Z. Zhao, "A Novel Valley-Fill SEPIC-derived Power Supply Without Electrolytic Capacitors for LED Lighting Application", IEEE Transactions on Power Electronics, vol. 27, no. 6, pp.3057-3071, Jun. 2012. https://doi.org/10.1109/TPEL.2011.2174446
  6. Y. Li, C. Chen, "A Novel Single-Stage High-Power- Factor AC-to-DC LED Driving Circuit With Leakage Inductance Energy Recycling," IEEE Transactions on Industrial Electronics, vol. 59, no. 2, pp.793-802, Feb. 2012. https://doi.org/10.1109/TIE.2011.2151817
  7. M. SangCheol, K. Gwan-Bon, M. Gun-Woo, "A New Control Method of Interleaved Single-Stage Flyback AC-DC Converter for Outdoor LED Lighting Systems," IEEE Transactions on Power Electronics, vol. 28, no. 8, pp.4051-4062, Aug. 2013. https://doi.org/10.1109/TPEL.2012.2229471
  8. Y. Hu, L. Hubber, M. M. Jovanovic, "Single-Stage, Universal-Input AC/DC LED Driver With Current- Controlled Variable PFC Boost Inductor," IEEE Transactions on Power Electronics, vol. 27, no. 3, pp.1579-1588, Mar. 2012. https://doi.org/10.1109/TPEL.2010.2082564
  9. Robert W. Erickson, Dragan Maksimovic, Fundamentals of Power Electronics, 2nded, Kluwer Academic Publishers, 2001, pp.164-165.
  10. L. Gu, X. Ruan, M. Xu, K. Yao, "Means of Eliminating Electrolytic Capacitor in AC/DC Power Supplies for LED Lightings," IEEE Transactions on Power Electronics, vol. 24, no. 5, pp.1399-1408, May. 2009. https://doi.org/10.1109/TPEL.2009.2016662
  11. M. SangCheol, K. Gwan-Bon, M. Gun-Woo, "A New Control Method of Interleaved Single-Stage Flyback AC-DC Converter for Outdoor LED Lighting Systems," IEEE Transactions on Power Electronics, vol. 28, no. 8, pp.4051-4062, August 2013. https://doi.org/10.1109/TPEL.2012.2229471
  12. Huai Wei, Issa Batars, "Comparison of Basic Converter Topologies For Power Factor Correction", IEEE Southeastcon '98. Proceedings, pp.348-353, April 1998.
  13. J. M. Alonso, J. Vina, D. G. Vaquero, G. Martinez, R. Osorio, "Analysis and Design of the Integrated Double Buck-Boost Converter as a High Power Factor Driver for Power-LED Lamps," IEEE Transactions on Industrial Electronics, vol. 59, no. 4, pp. 1689-1697, April 2012. https://doi.org/10.1109/TIE.2011.2109342
  14. Y. X. Qin, Henry S. H. Chung, D. Y. Lin, and S. Y. R. Hui, "Current Source Ballast for High Power Lighting Emitting Diodes without Electrolytic Capacitor", Industrial Electronics (IECON 2008 34thAnnual), pp.1968-1973, November 2008.