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

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

2009-01-12

2011-11-15

Ismail, Shawki S (Department: 2819)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural load device systems

C315S307000, C315S291000

Reexamination Certificate

active

08058814

ABSTRACT:
The present invention comprises of a first impedance constituted by the capacitive impedance and a second impedance constituted by the inductive impedance, wherein the first and second impedance after series connection appears in the series resonance status to generate a bi-directional divided power in series resonance to drive the bi-directional conducting light emitting diode parallel connected with the first or second impedance.

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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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