US Patent No. 10,342,094

LIGHTING DEVICE WITH ACTIVE THERMAL MANAGEMENT


Patent No. 10,342,094
Issue Date July 02, 2019
Title Lighting Device With Active Thermal Management
Inventorship Corey Goldstein, Milwaukee, WI (US)
Kurt Wilcox, Libertyville, IL (US)
Assignee Cree, Inc., Durham, NC (US)

Claim of US Patent No. 10,342,094

1. A lighting device comprising at least one LED operable to emit light when energized through an electrical path, comprising:a temperature sensitive component having a temperature limit;
a driver in the electrical path for controlling current delivered to the at least one LED, the driver comprising a temperature sensor for determining a temperature of the driver and not the temperature of the temperature sensitive component, the temperature of the driver being different than the temperature of the temperature sensitive component; and
a controller storing a correlated temperature limit of the driver, the controller controlling the driver to reduce the current delivered to the at least one LED when a correlated temperature limit is reached, the correlated temperature limit being related to the temperature limit whereby overheating of the temperature sensitive component is prevented.