DocumentCode :
3237045
Title :
A microprocessor based single stage power supply using fly-back converter for LED lightings
Author :
Cho, Kyu Min ; Oh, Won Seok ; Yoo, Kyung Sang ; In, Chigak ; Yeon, Jaeeul
Author_Institution :
Dept. of Inf. & Commun. Eng., Yuhan Univ., Pucheon, South Korea
fYear :
2011
fDate :
14-16 Dec. 2011
Firstpage :
84
Lastpage :
87
Abstract :
This paper presents a single stage power supply for LED lightings. The proposed power supply designed using fly-back converter topology, which is directly controlled by a microprocessor. Although the proposed circuit does not sense the AC input current and has not AC input voltage feed-forward, it can achieve high power factor. The proposed power supply directly regulates the output power for LED loads using the PWM and PFM control of the fly-back converter without additional regulator. A prototype set-up has been built and tested. Through the experiment with a prototype set-up, the validity of the proposed circuit is verified.
Keywords :
light emitting diodes; lighting; lighting control; microprocessor chips; power control; power convertors; power factor; AC input current; AC input voltage feed-forward; LED lighting; PFM control; PWM control; fly-back converter topology; microprocessor; power factor; single stage power supply; Light emitting diodes; Lighting; MOSFET circuits; Microprocessors; Power control; Power supplies; Switches; LED; fly-back converter; lightings; microprocessor; single stage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Superconductivity and Electromagnetic Devices (ASEMD), 2011 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-7852-1
Type :
conf
DOI :
10.1109/ASEMD.2011.6145074
Filename :
6145074
Link To Document :
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