Circuit for illuminating multiple light emitting devices

Details Circuit for illuminating multiple light emitting devices Circuit for illuminating multiple light emitting devices

2008-07-22

2008-07-22

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural load device regulation

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.
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patent: 6118259 (2000-09-01), Bucks et al.
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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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