A power quality improved isolated bridgeless sepic converter for LED lamp

In recent year high power LED lamps are developed rapidly for variety of application in indoor and outdoor purpose due to the high efficiency and advancement compare to other existing gas filled lamp. But it is necessary to implement and driver circuit for operating LED lamp. In this work, a SEPIC converter is designed as PFC circuit for operating the LED lamp in order to supply constant voltage and current by means of function the converter is discontinuous conduction mode to high power factor, high efficiency, reduce the switching losses. The performance of proposed converter is assessed through MATLAB Simulation and verified the results experimentally.

[1]  M.M. Jovanovic,et al.  A novel LED driver with adaptive drive voltage , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

[2]  Junming Zhang,et al.  Design Considerations for Dual-Output Quasi-Resonant Flyback LED Driver With Current-Sharing Transformer , 2013 .

[3]  J. Sebastian,et al.  Design criteria for SEPIC and Cuk converters as power factor preregulators in discontinuous conduction mode , 1992, Proceedings of the 1992 International Conference on Industrial Electronics, Control, Instrumentation, and Automation.

[4]  S. Hui,et al.  Novel Self-Configurable Current-Mirror Techniques for Reducing Current Imbalance in Parallel Light-Emitting Diode (LED) Strings , 2012, IEEE Transactions on Power Electronics.

[5]  Tsai-Fu Wu,et al.  Sequential Color LED Backlight Driving System for LCD Panels , 2007, IEEE Transactions on Power Electronics.

[6]  A. A. Fardoun,et al.  New “real” bridgeless high efficiency AC-DC converter , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[7]  K. I. Hwu,et al.  A Simple Current-Balancing Converter for LED Lighting , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[8]  A J Sabzali,et al.  New Bridgeless DCM Sepic and Cuk PFC Rectifiers With Low Conduction and Switching Losses , 2011, IEEE Transactions on Industry Applications.

[9]  K. I. Hwu,et al.  A LED current balancing driver with magnetizing inductance energy recycling considered , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[10]  Kamal Al-Haddad,et al.  Comprehensive Study of Single-Phase AC-DC Power Factor Corrected Converters With High-Frequency Isolation , 2011, IEEE Transactions on Industrial Informatics.

[11]  K. I. Hwu,et al.  A Dimmable LED Driver Based on Current Balancing Transformer With Magnetizing Energy Recycling Considered , 2014, Journal of Display Technology.