Circuit for illuminating multiple light emitting devices

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Plural load device regulation

Reexamination Certificate

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Details

C315S313000

Reexamination Certificate

active

11329338

ABSTRACT:
A single drive circuit is configured to drive disparate current loads of first and second combinations of compact light emitting devices with respective regulated constant currents. Standard push ON, push OFF latching switches provide independent control of the two lighting loads wherein each switch operates in three states including momentary ON, continuous ON, and OFF. The circuit is readily adapted to providing continuous or pulsed drive to the lighting arrays. Circuits for dimming control, strobe control, and a low battery indicator are also described.

REFERENCES:
patent: 3784844 (1974-01-01), McGrogan, Jr.
patent: 3944854 (1976-03-01), Keller
patent: 6118259 (2000-09-01), Bucks et al.
patent: 6161910 (2000-12-01), Reisenauer et al.
patent: 6836081 (2004-12-01), Swanson et al.
patent: 2004/0095185 (2004-05-01), Bucks et al.
patent: 2004/0130518 (2004-07-01), De Krijger et al.
patent: 2004/0145320 (2004-07-01), Nijhof et al.
patent: 2005/0018435 (2005-01-01), Selkee et al.

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