JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Improved Single-Stage AC-DC LED-Drive Flyback Converter using the Transformer-Coupled Lossless Snubber
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Improved Single-Stage AC-DC LED-Drive Flyback Converter using the Transformer-Coupled Lossless Snubber
Jeong, Gang-Youl; Kwon, Su-Han;
  PDF(new window)
 Abstract
This paper presents an improved single-stage ac-dc LED-drive flyback converter using the transformer-coupled lossless (TCL) snubber. The proposed converter is derived from the integration of a full-bridge diode rectifier and a conventional flyback converter with a simple TCL snubber. The TCL snubber circuit is composed of only two diodes, a capacitor, and a transformer-coupled auxiliary winding. The TCL snubber limits the surge voltage of the switch and regenerates the energy stored in the leakage inductance of the transformer. Also, the switch of the proposed converter is turned on at a minimum voltage using a formed resonant circuit. Thus, the proposed converter achieves high efficiency. The proposed converter utilizes only one general power factor correction (PFC) control IC as its controller and performs both PFC and output power regulation, simultaneously. Therefore, the proposed converter provides a simple structure and an economic implementation and achieves a high power factor without the need for any separate PFC circuit. In this paper, the operational principle of the proposed converter is explained in detail and the design guideline of the proposed converter is briefly shown. Experimental results for a 40-W prototype are shown to validate the performance of the proposed converter.
 Keywords
Single-stage;AC-DC Flyback converter;Transformer-coupled lossless (TCL) snubber;LED-drive;
 Language
English
 Cited by
 References
1.
Daniel A. Steigerwald, Jerome C. Bhat, Dave Collins, Robert M. Fletcher, Mari Ochiai Holcomb, Michael J. Ludowise, Member, IEEE, Paul S. Martin, and Serge L. Rudaz, "Illumination With Solid State Lighting Technology," IEEE Journal of Selected Topics in Quantum Electronics, vol. 8, no. 2, pp. 310-320, Mar. 2002. crossref(new window)

2.
Jeff Y. Tsao, "Solid-State Lighting: Lamps, Chips, Materials for Tomorrow," IEEE Circuits Devices Mag., vol. 20, no. 3, pp. 28-37, May/June 2004. crossref(new window)

3.
Michael S. Shur and Artūras Žukauskas, "Solid-State Lighting: Toward Superior Illumination," Proceedings of the IEEE, vol. 93, no. 10, pp. 1691-1703, Oct. 2005. crossref(new window)

4.
Mary H. Crawford, "LEDs for Solid-state Lighting: Performance and Recent Advances," IEEE J. Sel. Topics in Quantum Electron., vol. 15, no. 4, pp. 1028-1040, July/Aug. 2009. crossref(new window)

5.
Ansgar Laubsch, Matthias Sabathil, Johannes Baur, Matthias Peter and Berthold Hhn, "High-Power and High-Efficiency InGaN-Based Light Emitters," IEEE Trans. Electron Devices, vol. 57, no. 1, pp. 79-87, Jan. 2010. crossref(new window)

6.
Diego González Lamar, Javier Sebastián Zúñiga, Alberto Rodríguez Alonso, Miguel Rodríguez González, and Marta María Hernando Álvarez, "A Very Simple Control Strategy for Power Factor Correctors Driving High-Brightness LEDs," IEEE Trans. Power Electronics, vol. 24, no. 8, pp. 2032- 2042, Aug. 2009. crossref(new window)

7.
April (Yang) Zhao and Wai Tung Ng, "An energy conservation based high-efficiency dimmable multi- channel LED driver ," Energy Conversion Congress and Exposition (ECCE) 2011, pp. 2576-2580, Sep. 2011.

8.
Hongbo Ma, Jih-Sheng Lai, Quanyuan Feng, Wensong Yu, Cong Zheng and Zheng Zhao, "A Novel Valley-Fill SEPIC-Derived Power Supply Without Electrolytic Capacitor for LED Lighting Application," IEEE Trans. Power Electronics, vol. 24, no. 8, pp. 2032-2042, Aug. 2009. crossref(new window)

9.
Rudolph R. Verderber, Oliver C. Morse and William R. Alling, "Harmonics from Compact Fluorescent Lamps," IEEE Trans. Industry Applications, vol. 29, no. 3, pp. 670-674, May 1993. crossref(new window)

10.
Wu Chen, Member and S. Y. Ron Hui, "Elimination of an Electrolytic Capacitor in AC/DC Light-Emitting Diode (LED) Driver With High Input Power Factor and Constant Output Current," IEEE Trans. Power Electronics, vol. 27, no. 3, pp. 1598-1607, Mar. 2012. crossref(new window)

11.
Jianwen Shao, "Single Stage Offline LED Driver," Applied Power Electronics Conference and Exposition (APEC) 2009, pp. 582-586, Feb. 2009.

12.
David Gacio, J. Marcos Alonso, Antonio J. Calleja, Jorge García and Manuel Rico-Secades, "A Universal-Input Single-Stage High-Power-Factor Power Supply for HB-LEDs Based on Integrated Buck-Flyback Converter," IEEE Trans. Industrial Electronics, vol. 58, no. 2, pp. 589-599, Feb. 2011. crossref(new window)

13.
Yan-Cun Li and Chern-Lin Chen, "A Novel Single-Stage High-Power-Factor AC-to-DC LED Driving Circuit With Leakage Inductance Energy Recycling," IEEE Trans. Industrial Electronics, vol. 59, no. 2, pp. 793-802, Feb. 2012. crossref(new window)

14.
Yan-Cun Li and Chern-Lin Chen, "A Novel Single-Stage High-Power-Factor AC-to-DC LED Driving Circuit With Leakage Inductance Energy Recycling," IEEE Trans. Industrial Electronics, vol. 59, no. 2, pp. 793-802, Feb. 2012. crossref(new window)

15.
Diego G. Lamar, Manuel Arias, Alberto Rodríguez, Arturo Fernández, Marta M. Hernando and Javier Sebastián, "Design-Oriented Analysis and Performance Evaluation of a Low-Cost High-Brightness LED Driver Based on Flyback Power Factor Corrector," IEEE Trans. Industrial Electronics, vol. 60, no. 7, pp. 793-802, July 2013. crossref(new window)