US Patent No. 10,433,395

DEVICE FOR DRIVING THE ELECTRICAL POWER SUPPLY OF LIGHT SOURCES OF AN AUTOMOTIVE VEHICLE


Patent No. 10,433,395
Issue Date October 01, 2019
Title Device For Driving The Electrical Power Supply Of Light Sources Of An Automotive Vehicle
Inventorship David Boudikian, Bobigny (FR)
Jean-Philippe Alves, Bobigny (FR)
Bernard Guillot, Bobigny (FR)
Irantzu Jauregi, Bobigny (FR)
Assignee VALEO VISION, Bobigny (FR)

Claim of US Patent No. 10,433,395

1. A device for providing electrical power to at least one electronic circuit branch comprising at least one light source of an automotive vehicle, the device comprising:a converter circuit configured to convert a constant direct current (DC) input voltage VIN into a load voltage, which is applied to said at least one circuit branch;
control means configured to generate a periodic signal S having a frequency f and to provide the periodic signal S to the converter circuit;
detecting means connected to the input voltage VIN in parallel with the converter circuit and configured to detect a disruption in the input voltage VIN, and to determine a frequency fp of the disruption; and
adapting means configured to modify the frequency f of said periodic signal S according to the determined frequency fp of the disruption.