Bi-directional light emitting diode drive circuit in...

Details Bi-directional light emitting diode drive circuit in... Bi-directional light emitting diode drive circuit in...

2009-01-12

2011-11-22

Ismail, Shawki S (Department: 2819)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S250000, C315S291000

Reexamination Certificate

active

08063587

ABSTRACT:
The present invention uses the capacitive, or inductive, or resistive impedance component to constitute the first impedance, and the parallel connected capacitive and the inductive impedance components in parallel resonance to constitute the second impedance; and is characterized as that the first impedance and the second impedance in series connection is configured for inputting bi-directional power, thereby dividing its power source voltage to drive the bi-directional conducting light emitting diode.

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patent: 6628085 (2003-09-01), Yang
patent: 7164237 (2007-01-01), Van Casteren
patent: 7489086 (2009-02-01), Miskin et al.
patent: 7564198 (2009-07-01), Yamamoto et al.
patent: 7868561 (2011-01-01), Weightman et al.
patent: 2006/0197466 (2006-09-01), Park
patent: 2008/0211421 (2008-09-01), Lee et al.
patent: 2008/0231204 (2008-09-01), Praiswater et al.

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