Powering LED Using High-Efficiency SR Flyback Converter

A high-efficiency synchronously-rectified (SR) flyback converter with the proposed multi-function circuit is presented herein so as to get through not only playing the role of an LC snubber but also detecting the zero crossing of the current to reduce switching loss and feeding the peripheral circuit. And hence, this converter has high efficiency all over the operating range, and, together with one front-end power-factor-correction (PFC) AC-DC converter, is applied to feeding the LED street light. In this paper, the basic operating principles of the proposed topology are firstly illustrated in details, and secondly some simulated and experimental results are provided to demonstrate the effectiveness of the proposed topology.

[1]  Youhao Xi,et al.  An improved zero voltage switching flyback converter topology , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[2]  Z. Qian,et al.  A novel high-efficiency single-stage PFC converter with reduced voltage stress , 2002 .

[3]  Mutsuo Nakaoka,et al.  Soft switching PWM DC-DC flyback converter with transformer - assisted pulse current regenerative passive resonant snubbers , 2003, The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003..

[4]  Gun-Woo Moon,et al.  New Cost-Effective PWM Single-Switch Isolated Converter , 2007, 2007 IEEE Power Electronics Specialists Conference.

[5]  Miro Milanovic,et al.  RC-RCD clamp circuit for ringing losses reduction in a flyback converter , 2006, IEEE Transactions on Circuits and Systems II: Express Briefs.

[6]  Yim-Shu Lee,et al.  Novel single-stage isolated power-factor-corrected power supplies with regenerative clamping , 1998 .

[7]  M.M. Hernando,et al.  Power factor correction with a partial power processing converter , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[8]  Chih-Sheng Liao,et al.  Design of high efficiency Flyback converter with energy regenerative snubber , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

[9]  D. Tagliavia,et al.  DC-DC flyback converters in the critical conduction mode: a re-examination , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[10]  Y. Xing,et al.  A dual-transformer flyback converter in critical conduction mode , 2004, The 4th International Power Electronics and Motion Control Conference, 2004. IPEMC 2004..

[11]  Fred C. Lee,et al.  A front-end distributed power system for high-power applications , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[12]  W. Qiu,et al.  A bi-flyback PFC converter with low intermediate bus voltage and tight output voltage regulation for universal input applications , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[13]  Andrzej M. Trzynadlowski,et al.  Introduction to modern power electronics , 1998 .

[14]  Claudio Adragna.  AN1059 APPLICATION NOTE DESIGN EQUATIONS OF HIGH-POWER-FACTOR FLYBACK CONVERTERS BASED ON THE L6561 , 2003 .

[15]  Kevin Barraclough,et al.  I and i , 2001, BMJ : British Medical Journal.

[16]  Dylan Dah-Chuan Lu,et al.  Applying time-multiplexing control to single-stage forward-based power-factor-corrected converter , 2009, 2009 International Conference on Power Electronics and Drive Systems (PEDS).

[17]  M. Rico-Secades,et al.  A Universal-Input Single-Stage High-Power-Factor Power Supply for HB-LEDs Based on Integrated Buck-Flyback Converter , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[18]  Hossin Hosseinian,et al.  Power Electronics , 2020, 2020 27th International Conference on Mixed Design of Integrated Circuits and System (MIXDES).

[19]  J.A. Cobos,et al.  Average modeling and analysis of a Flyback with Active Clamp topology based on a very simple transformer , 2007, APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition.

[20]  Po-Yuan Chen,et al.  An efficient active LC snubber for multi-output converters with flyback synchronous rectifier , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[21]  N. Rouger,et al.  High-Efficiency and Fully Integrated Self-Powering Technique for Intelligent Switch-Based Flyback Converters , 2008, IEEE Transactions on Industry Applications.

[22]  Praveen Jain,et al.  An Adaptive Energy Storage Technique for Efficiency Improvement of Single Stage Three-Level Resonant AC/DC Converters , 2009, APEC 2009.

[23]  Jun-Seok Cho,et al.  Asymmetrical ZVS PWM Flyback Converter with Synchronous Rectification for Ink-Jet Printer , 2006 .

[24]  Jose A. Cobos,et al.  Universal line voltage single-stage AC/DC converter , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[25]  T. Ninomiya,et al.  Interleaved boost-input-type full bridge converter , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[26]  Esam H. Ismail,et al.  Non-isolated single stage PFC rectifier for wide-input large step-down voltage applications , 2009, 2009 International Conference on Power Electronics and Drive Systems (PEDS).

[27]  A. Shteynberg,et al.  A novel multimode digital control approach for single-stage flyback power supplies with power factor correction and fast output voltage regulation , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[28]  Xiangning He,et al.  An isolated interleaved active-clamp ZVT flyback-boost converter with coupled inductors , 2007, 2007 European Conference on Power Electronics and Applications.

[29]  C.-T. Hsieh,et al.  Active Clamp Interleaved Flyback Converter with Single-Capacitor Turn-off Snubber for Stunning Poultry Applications , 2007 .

[30]  Jianwen Shao,et al.  Single Stage Offline LED Driver , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[31]  A. Uan-Zo-li,et al.  Study and design considerations of a voltage-source single-stage PFC converter , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[32]  Guang Hua,et al.  A high efficiency gate-driving scheme of synchronous rectifiers in Wide-Input-Voltage-Range CCM Flyback Converter , 2006 .

[33]  Xinbo Ruan,et al.  Boost-Flyback Single-Stage PFC Converter with Large DC Bus Voltage Ripple , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[34]  Zhixiang Liang,et al.  Single-Stage Offline SEPIC Converter with Power Factor Correction to Drive High Brightness LEDs , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[35]  Yim-Shu Lee,et al.  Novel single-stage isolated power-factor-corrected power supplies with regenerative clamping , 1997, Proceedings of APEC 97 - Applied Power Electronics Conference.

[36]  P.N. Enjeti,et al.  A parallel-connected single phase power factor correction approach with improved efficiency , 2004, IEEE Transactions on Power Electronics.

[37]  Ashoka K. S. Bhat,et al.  Characteristics of fixed-frequency hybrid resonant converter operating on the utility line , 1999 .

[38]  F.C. Lee,et al.  Single-switch parallel power factor correction AC-DC converters with inherent load current feedback , 2004, IEEE Transactions on Power Electronics.

[39]  Robert W. Erickson,et al.  Fundamentals of Power Electronics , 2001 .

[40]  C. K. Tse,et al.  Analysis and experimental evaluation of single-switch fast-response switching regulators with unity power factor , 1997 .

[41]  Esam H. Ismail,et al.  Single-stage single-switch PFC converter with extreme step-down voltage conversion ratio , 2009, 2009 International Conference on Power Electronics and Drive Systems (PEDS).