US 12,144,083 B2
Multi-branch light system with current balancing and failure indication
Sylvain Larribe, Troy, MI (US)
Assigned to Valeo Vision, Bobigny (FR)
Filed by VALEO VISION, Bobigny (FR)
Filed on Apr. 27, 2023, as Appl. No. 18/307,849.
Claims priority of provisional application 63/434,734, filed on Dec. 22, 2022.
Prior Publication US 2024/0215137 A1, Jun. 27, 2024
Int. Cl. H05B 47/21 (2020.01); H05B 45/35 (2020.01); H05B 45/46 (2020.01); H05B 45/52 (2020.01)
CPC H05B 47/21 (2020.01) [H05B 45/35 (2020.01); H05B 45/46 (2020.01); H05B 45/52 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A light system comprising:
a plurality of light branches extending in parallel to one another with each of the plurality of light branches comprising one or more lights that provide light to a region around a vehicle, the plurality of light branches comprising:
a primary light branch comprising:
a bias circuit and a switch; and
secondary light branches that are controlled by the primary light branch, wherein the secondary light branches comprise a notice circuit that comprises a primary path and a secondary path;
wherein electricity is provided to the plurality of light branches and when all of the one or more lights on the plurality of light branches are operating properly the electricity maintains the switch, in the bias circuit, in a closed position where all of the one or more lights remain on;
wherein when any of the one or more lights fail or are not operating properly, electricity is prevented from extending through the light branch, by the one or more lights that have failed or are not operating properly, and the electricity continues to extend through the plurality of light branches that are operating properly so that the electricity that extends to the switch is not sufficient to maintain the switch in the closed position and the switch moves to an open position where the light system is turned off; and
wherein the electricity extends through all of the secondary light branches when each of the one or more lights along the secondary light branches are operating properly so that some of the electricity extends along the primary path and some of the electricity extends along the secondary path.