Synchronous light emitting diode lamp string controller

Details Synchronous light emitting diode lamp string controller Synchronous light emitting diode lamp string controller

2011-04-19

2011-04-19

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural load device regulation

C315S18500S, C315S18500S, C315S312000

Reexamination Certificate

active

07928667

ABSTRACT:
The present invention discloses a synchronous LED lamp string controller, comprising a clock synchronous circuit to receive a reference signal with a constant frequency, and based on which, to generate a system clock; a counter circuit to counter the system clock and generate a clock signal; a control logic circuit to receive said clock signal to generate a control signal; and a driver circuit to receive said control signal to drive at least a light emitting diode.

REFERENCES:
patent: 6072280 (2000-06-01), Allen
patent: 6777891 (2004-08-01), Lys et al.
patent: 7250730 (2007-07-01), Allen
patent: 7253566 (2007-08-01), Lys et al.
patent: 7508141 (2009-03-01), Wong
patent: 2002/0171378 (2002-11-01), Morgan et al.
patent: 2006/0267861 (2006-11-01), Yonezawa

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