The invention relates to a device and method for controlling the electrical power supply to a plurality of light sources, preferably light-emitting diodes, LEDs. The plurality of light sources is divided into at least two groups of light sources. The inven...

The invention relates to a SEPIC-type converter intended to convert a first direct voltage into a second different direct voltage. The converter is remarkable in that it allows output current control through an indirect measurement that is sensitive neithe...

A dimmable LED reading light unit (8), in particular for a passenger transportation vehicle, such as an airplane, a bus or a ship, comprises an input (10) which is connectable to a potentiometer (6) that outputs a direct voltage having a voltage intensity ...