Multi-lamp driver

Details Multi-lamp driver Multi-lamp driver

2008-07-01

2008-07-01

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S213000, C315S220000, C315S277000, C315S320000, C315S324000

Reexamination Certificate

active

11459964

ABSTRACT:
A multi-lamp driver t disclosed, comprising a power driver coupled to a plurality of lamps to supply power thereto, a feedback circuit coupled to at least one of the lamps to generate a feedback signal, a control circuit coupled between the feedback circuit and the power driver to control the power driver according to an illumination control signal and the feedback signal for total illumination adjustment of the lamps, and at least one switch controlled by the control circuit to turn at least one of the lamps on or off. In a total illumination adjustment of the lamps, the switch turns on or off timely. The difference between the maximum and minimum value of the total illumination of the lamps is thus increased.

REFERENCES:
patent: 6717372 (2004-04-01), Lin et al.
patent: 7045967 (2006-05-01), Chen et al.
patent: 595265 (2004-06-01), None
patent: M261649 (2005-04-01), None
Taiwan Office Action mailed Aug. 31, 2006.

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