A SEPIC LED driver with a hybrid dimming technique for road vehicles

Author

Yuan-Ta Hsieh ; Bin-Da Liu ; Jian-Fu Wu ; Chiao-Li Fang ; Hann-Huei Tsai ; Ying-Zong Juang

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2011

fDate

Aug. 30 2011-Sept. 1 2011

Firstpage

1

Lastpage

7

Abstract

Light-emitting-diodes (LEDs) are commonly used for backlighting and lighting applications. For LEDs to be used as lighting or backlighting sources for vehicles, it is important to simplify the dimming scheme for LED drivers. Since the number of required LEDs varies with application, a single-ended primary-inductor converter (SEPIC) topology is suitable for the LED drivers to operate in a single battery system. In this paper, a SEPIC LED driver with a hybrid dimming scheme is proposed for vehicle lighting and backlighting applications. The proposed scheme reduces the wiring complexity of vehicles and the cost of LED drivers.

Keywords

driver circuits; inductors; light emitting diodes; lighting; power convertors; road vehicles; LED drivers; SEPIC; hybrid dimming technique; light emitting diodes; road vehicles; single-ended primary inductor converter; vehicle backlighting; vehicle lighting; Automotive applications; Brightness; Current measurement; Light emitting diodes; Lighting; Vehicles; Wiring; SEPIC LED driver; automotive application; brightness control; hybrid dimming technique;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on

Conference_Location

Birmingham

Print_ISBN

978-1-61284-167-0

Electronic_ISBN

978-90-75815-15-3

Type

conf

Filename

6020587