Lighting circuit, in particular with LED light sources
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United States of America Patent
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Jan 24, 2017
Grant Date -
Jun 12, 2014
app pub date -
Dec 12, 2013
filing date -
Dec 12, 2012
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Abstract
A lighting circuit, in particular for a motor vehicle light, comprises at least one light source, particularly of the LED type, defined by a first voltage selection, a first selection circuit to identify said first voltage selection, at least one light source, particularly of the LED type, defined by a second voltage selection, and a second selection circuit to identify said second voltage selection. An electronic control unit configured to detect said first and second voltage selection of the light source, and to regulate the driving current absorbed by the light source defined by the lower voltage selection, so that said driving current follows with a constant ratio the trend of the driving current absorbed by the light source defined by the higher voltage selection, the latter being taken as reference.
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