LED temperature-dependent power supply system and method

Details LED temperature-dependent power supply system and method LED temperature-dependent power supply system and method

2004-09-01

2009-12-22

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S291000, C315S224000, C315S308000, C315S307000, C315S312000, C363S021170, C323S285000

Reexamination Certificate

active

07635957

ABSTRACT:
A LED based lighting system (20) employs a LED load temperature sensor (40) for generating a temperature-sensing signal (TSS) indicative of an operational temperature of the LED load (10), a LED current sensor (50) for generating a current-sensing signal (CSS) indicative of a flow of the LED current (ILED) through the LED load (10), and a LED driver (30) for regulating the flow of the LED current (ILED) through the LED load (10) as a function a mixture of the current-sensing signal (CSS) and the temperature-sensing signal (TSS). The system (20) can further employ a driver disable notifier (80) and a LED driver disabler (90), or alternatively, a fuse network (100) for disabling the LED driver (30) upon a detection of a fault condition of the system (20).

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