| Title |
(High-Efficiency Converter for Automotive Headlamp Using New H-type Snubber) |
| Authors |
Sung-Joo Kim ; Sun-Pil Kim ; Tae-Uk Jung ; Sung-Jun Park ; Seong-Mi Park |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2015.29.10.065 |
| Keywords |
Low Cost, Automotive, Headlamp, LDM, Boost Converter |
| Abstract |
Recently, LED light has been increasingly adopted for vehicles in both domestic and foreign automotive markets, while a variety of LED lights have been developed to be used particularly for headlamps. In this paper, we propose an H-type resonant snubber circuit topology for high efficiencyof vehicle LDM (LED Driver Module) and realized LDM functions for vehicle headlamp by designing high-efficiency convertors. In addition, this study reduced the financial burden by configuring thesystem to control the whole with micom except for the use of individual dedicated chips to drive LED for high and low beam. In order to verify the validity of the proposed H-type resonant snubber capable of soft switching, simulations were performed using PSIM. As a result, the validity was experimentally verified by creating a prototype. Moreover, in order to actually attach the headlamp, the performance of the proposed convertor was confirmed by designing LDM to the limited size. Communications between the headlamp and higher controller were realized using LIN(Local Interconnect Network). |