Title :
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
fDate :
Aug. 30 2011-Sept. 1 2011
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;
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
