Patent ID: 9301347
Filing Date: 2016-03-29
CPC Classification: H05B,Y02B

Claim Text:
1. A programmable driver for driving a solid state lighting device, the driver comprising: a processing circuit configured to determine a voltage reference signal (Vref) based on a nominal current setting and a predetermined power limit; a voltage feedback loop configured to receive the voltage reference signal and to generate a voltage feedback signal comprising a difference between a reference voltage indicated by the voltage reference signal and a drive voltage of the solid state lighting device; a current feedback loop configured to determine a generate a current feedback signal comprising a difference between a reference current and a drive current of the solid state lighting device; and a power stage configured to adjust a maximum output voltage of the driver to enable driving the solid state lighting device based at least in part on the voltage feedback signal when the voltage feedback signal has a higher level than the current feedback signal, wherein the predetermined power limit indicates a maximum output power the power stage is able to deliver.