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US 2020/0008281 A1Published application
System for controlling the electrical power supply of a pixelated light source
AssigneeValeo Vision
InventorsSebastian Krick, Qingyuan Xie
Life of this patent
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Abstract
A device for controlling the electrical power supply of a pixelated light source comprises a converter having a feedback control loop and a microcontroller element. The microcontroller element is arranged to act on the controlled value in a precise manner as a function of at least one parameter of the pixelated light source powered by the converter.
Claims20
Device for controlling the electrical power supply of a pixelated light source includes:
- a converter to convert an electrical input voltage into an electrical load voltage to be supplied to the pixelated light source;
- feedback control means of the converter, the feedback control means having as input a value representative of the value of the electrical current flowing in the pixelated light source,
- wherein the device comprises a microcontroller element arranged for generating a control signal, of which at least one characteristic depends on at least one parameter of the pixelated light source, and for injecting this signal into the feedback control means.
Dependencies are inferred from the claim text.