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

2011-11-08

Ismail, Shawki S (Department: 2819)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S291000, C315S250000, C315S224000

Reexamination Certificate

active

08054007

ABSTRACT:
The present invention uses the capacitive impedance component to constituted the first impedance and the inductive impedance component to constituted the second impedance, which is characterized as that the first and second impedances in series connection is configured to appear series resonance with the inputting bi-directional power to form a bi-directional divided power, thereby using the bi-directional divided power to drive the bi-directional conducting light emitting diode in parallel connection with the first impedance and second impedance.

REFERENCES:
patent: 2003/0122502 (2003-07-01), Clauberg et al.
patent: 2008/0054814 (2008-03-01), Deppe et al.
patent: 2010/0060182 (2010-03-01), Stack
patent: 2011/0018458 (2011-01-01), Wei

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