DocumentCode
2640771
Title
An efficient driver for dimmable LED lighting
Author
Yang, Wen-Ching ; Chen, Yu-Jen ; Moo, Chin-Sien
Author_Institution
Electr. Eng. Dept., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
fYear
2011
fDate
21-23 June 2011
Firstpage
2331
Lastpage
2336
Abstract
A high efficiency driver circuit is proposed for Light Emitting Diode (LED) lamps with dimming feature. The driver consists of a fly-back converter in series with the dc-link. By processing partial power of the power conversion circuit for current regulation, a high overall circuit efficiency is achievable. The dimming feature can be accomplished by means of linear current regulation or the double pulse-width modulation (PWM) control scheme. Test results from an exemplar design for a 45 W LED lamp demonstrate that the high circuit efficiency.
Keywords
LED lamps; PWM power convertors; driver circuits; LED lamps; dimmable LED lighting; dimming feature; double pulse-width modulation control scheme; driver circuit; fly-back converter; light emitting diode lamps; linear current regulation; power 45 W; power conversion circuit; Capacitors; Driver circuits; LED lamps; Pulse width modulation; Switches; Voltage control; Dimming; Light Emitting Diode (LED); double pulse-width modulation;
fLanguage
English
Publisher
ieee
Conference_Titel
Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on
Conference_Location
Beijing
ISSN
pending
Print_ISBN
978-1-4244-8754-7
Electronic_ISBN
pending
Type
conf
DOI
10.1109/ICIEA.2011.5975982
Filename
5975982
Link To Document