DocumentCode :
2530044
Title :
A technique for producing high power factor for HB-LEDs power supply based on boost topology
Author :
Yarmohammadi, L. ; Afjei, E. ; Siadatan, A.
Author_Institution :
Dept. of Electr. Eng., Islamic Azad Univ., Tehran, Iran
fYear :
2015
fDate :
3-4 Feb. 2015
Firstpage :
287
Lastpage :
291
Abstract :
This topology presents simple and economical method of power factor correction for driving High-Brightness LEDs based on Boost converter. Nowadays, HB-LEDs are discussed as a noticeable lighting instrument because of their great Longevity, multicolored, and Compatible with Environment. It works by sampling of the input and output voltage and current in the boost converter, whereupon, improving the input power factor and reduction the line current´s Total Harmonic Distortion (THD). Recently, power factor correction (PFC) has become an essential part of new power supply designs. The proposed converter shows a power supply for HB-LED which could work under a large AC input voltage range and obtains high power quality. It is a single stage, low cost and high efficiency. The UC3854 with fast control loop is used to improve power factor and enabling the PWM dimming. We tested this control method by simulating and both converters built in the laboratory and final results compared to open loop converter.
Keywords :
DC-DC power convertors; LED lamps; driver circuits; electric current control; harmonic distortion; power factor correction; power supply quality; HB-LED power supply; boost converter; boost topology; driving high brightness LED; fast control loop; high power factor; high power quality; power factor correction; total harmonic distortion; Instruments; Power supplies; Rectifiers; Standards; Stress; Topology; Boost; HB- LED; PFC; THD; power supply;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics, Drives Systems & Technologies Conference (PEDSTC), 2015 6th
Conference_Location :
Tehran
Print_ISBN :
978-1-4799-7652-2
Type :
conf
DOI :
10.1109/PEDSTC.2015.7093289
Filename :
7093289
Link To Document :
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