NDLI: PV power system using buck/forward hybrid converters for LED Lighting

Content Provider	IEEE Xplore Digital Library
Author	Fan, S.-Y. Tseng, S.-Y. Wu, Y.-J. Lee, J.-D.
Copyright Year	2009
Description	Author affiliation: GreenPower Evolution Application Research Lab. (GPEARL), Department of Electrical Engineering, Chang-Gung University, Kwei-Shan Tao-Yuan , Taiwan, R.O.C (Fan, S.-Y.) \|\| Linear Motor Research Laboratory, Department of Electrical Engineering, Wufeng Institute of Technology, Ming-Hsiung, Chia-Yi, Taiwan (Tseng, S.-Y.; Wu, Y.-J.; Lee, J.-D.)
Abstract	This paper presents an LED lighting system with a PV source. The circuit structure of the proposed system adopts buck converter combined with forward converter. In this research, buck converter is used as a charger for charging battery, and forward converter with active clamp circuit , which can recover leakage inductor energy and reset magnetizing energy stored in the transformer, is adopted to drive LED lighting. To simplify the circuit structure, switches of two converters are integrated with a synchronous switch technique. With this approach, the proposed system has several merits, which are a less component counts, lighter weight, smaller size and higher conversion efficiency. Compared with the conventional converter with hard-switching circuit, the proposed one can improve conversion efficiency of 5% and achieve efficiency about 82% under full load when the proposed system is operated in the driving LED condition. Experimental results obtained from a prototype with the output voltage of 10V and output power of 20W have been implemented to verify verified its feasibility.
Starting Page	2584
Ending Page	2591
File Size	966353
Page Count	8
File Format	PDF
ISBN	9781424428939
DOI	10.1109/ECCE.2009.5316194
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	LED lamps Buck converters Switches Light emitting diodes Forward converter Batteries Clamps Switching circuits Active inductors Buck converter Active clamp circuit Hybrid power systems Synchronous switch technique Magnetic circuits LED lighting system
Content Type	Text
Resource Type	Article

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