abstract

• This paper presents an electronic ballast based high power LEDs for headlights automobile. The ballast is based on a buck converter to feed a load of high power LED. The load is divided into five high power LED (10W), in automobile lighting systems rapid changes of lighting is required (power changes), therefore the buck converter must deliver constant voltage levels to changes in power and further the current necessary to maintain a flow of light required. To solve this problem this paper proposes a control law for buck converter control, which maintains a fixed voltage level for the different power (10.9W, 21.8W, 32.7W, 43.6W, 54.5W) dynamic response to these changes is fast and constant levels of current and luminous flux at each change of load is maintained. © 2014 IEEE.

authors

• Juarez M.A.
• Martinez R.
• Martínez Rodríguez Pánfilo Raymundo
• Prieto X.
• Sosa J.M.
• Vazquez G.

publication date

• 2014-01-01

published in

• 2014 IEEE International Autumn Meeting on Power, Electronics and Computing, ROPEC 2014  Proceedings

keywords

• automobile headlights; Buck converter; Buck converter control; LED Automobiles; Ballasts (lamp); Dynamic response; Headlights; Light emitting diodes; Lighting; Power converters; Automobile lightings; Buck converters; Constant level; Constant voltage; Electronic ballasts; Fixed voltage; High power LED; Luminous flux; DC-DC converters

Digital Object Identifier (DOI)

• 10.1109/ROPEC.2014.7036298

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