Power regulation for LED strings

Details Power regulation for LED strings Power regulation for LED strings

2008-06-09

2010-11-30

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S18500S, C315S294000

Reexamination Certificate

active

07843150

ABSTRACT:
One embodiment of the invention includes a power regulator system. The system comprises at least one current regulator configured to maintain a substantially constant current flow through each of at least one series connected light emitting diode (LED) string. The system also comprises a power converter configured to generate an output voltage to provide power to the at least one current regulator and the at least one series connected LED string. The system further comprises a voltage regulator configured to determine a voltage that provides power to the at least one current regulator and to adjust the output voltage based on the determined voltage to mitigate power loss due to excessive voltage provided to power the at least one current regulator.

REFERENCES:
patent: 7307614 (2007-12-01), Vinn
patent: 2007/0139317 (2007-06-01), Martel et al.
patent: 2007/0229001 (2007-10-01), McIntosh et al.
patent: 2008/0116818 (2008-05-01), Shteynberg et al.
patent: 2008/0224625 (2008-09-01), Greenfeld
patent: 1745603 (2006-03-01), None
patent: 0909048 (2007-02-01), None
patent: 2000-347613 (2000-12-01), None
patent: 2002-8409 (2002-01-01), None

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