Constant current Class 3 lighting system

Details Constant current Class 3 lighting system Constant current Class 3 lighting system

2006-05-02

2006-05-02

Dinh, Trinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S194000, C315S2090SC, C315S307000, C307S150000

Reexamination Certificate

active

07038400

ABSTRACT:
A lighting system having a power supply and at least one luminaire. The power supply includes a power supply input to receive a first signal having a first frequency and a circuit for converting the first signal to a second signal. The power supply also includes at least one power supply output to output a second signal having a substantially constant current and a second frequency distinctly higher than the first frequency. The luminaire includes a lamp coupled to a lamp driver circuit, which has an input for receiving the output signal from the power supply and which is configured to use the received output signal to operate the lamp. The lamp driver input and the power supply output may be connected by a flexible cable.

REFERENCES:
patent: 4870327 (1989-09-01), Jorgensen
patent: 5872429 (1999-02-01), Xia et al.
patent: 6246182 (2001-06-01), Yamasaki et al.
patent: 2004/0155603 (2004-08-01), Clegg

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