The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2019
Filed:
Jan. 26, 2018
Valeo Vision, Bobigny, FR;
David Boudikian, Bobigny, FR;
Jean-Philippe Alves, Bobigny, FR;
Bernard Guillot, Bobigny, FR;
Irantzu Jauregi, Bobigny, FR;
VALEO VISION, Bobigny, FR;
Abstract
The invention provides a device for driving the electrical power supply of at least one electronic circuit branch comprising at least one light source of an automotive vehicle. A converter circuit converts an input voltage Vinto a load voltage (or current) that is applied to said circuit branch, and control means are configured to control the converter circuit by means of a periodic PWM signal having a predetermined frequency f. The frequency f is adapted in real time and according to a disruption that is detected in the input voltage signal Vin order to avoid any occurrence of flickering in the intensity of the luminous flux emitted by the light sources.