US Patent No. 10,117,311

AUTOMATIC POWER CONTROLLER FOR A PLURALITY OF LIGHTING ARRAYS


Patent No. 10,117,311
Issue Date October 30, 2018
Title Automatic Power Controller For A Plurality Of Lighting Arrays
Inventorship Salvatore T. Battaglia, Vancouver, WA (US)
Assignee Phoseon Technology, Inc., Hillsboro, OR (US)

Claim of US Patent No. 10,117,311

1. A system for operating one or more light emitting devices, comprising:a lighting array comprising at least one light emitting device;
at least two negative temperature coefficient devices in thermal communication with the lighting array; and
an operational amplifier including a negative feedback loop, the at least two negative temperature coefficient devices electrically coupled in parallel to each other and coupled to the negative feedback loop, only two fixed value resistors coupled to the negative feedback loop, and where a first of the only two fixed value resistors is in direct electrical communication with an inverting input of the operational amplifier and an output of the operational amplifier, and where a second of the only two fixed value resistors is in direct electrical communication with the first of the only two fixed value resistors, the inverting input of the operational amplifier, and the at least two negative temperature coefficient devices.