Thermal management and power supply control system for at least one light source

Abstract

The invention relates to a device and method for controlling the power supply of light sources, preferably light emitting diodes (LED). The invention is characterized in that it allows the thermal management of LEDs without requiring the use of a programmable DC / DC converter, by systematically adjusting an automatic control value of the DC / DC converter used.

Description

technical field

[0001] The invention relates to the field of power supplies for light sources. In particular, the present invention relates to thermal management and power control systems and methods for light sources, more specifically light emitting diodes (LEDs). The invention also relates to a lamp arrangement for a motor vehicle. Background technique

[0002] A light emitting diode (LED) is an electronic device that emits light when an electric current passes through it. The intensity of light emitted by an LED generally depends on the intensity of the current passing through the LED. LEDs are characterized, among other things, by having a current intensity threshold. This maximum forward current typically decreases with increasing temperature. When current with an intensity greater than a threshold is used to power an LED, the LED may be damaged or destroyed. In the automotive sector, LED technology is increasingly being used for various light signaling solutions....

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