Voltage sensing apparatus for power regulation and...

Details Voltage sensing apparatus for power regulation and... Voltage sensing apparatus for power regulation and...

2009-03-13

2011-10-11

Tran, Anh (Department: 2819)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S224000, C315S291000, C315S2090SC

Reexamination Certificate

active

08035319

ABSTRACT:
The configurations of a discharge lamp system and a controlling method thereof are provided in the present invention. The proposed discharge lamp system includes a discharge lamp, a converter circuit coupled to the discharge lamp and having a switching switch, a ballast controller generating a first driving signal and controlling the switching switch accordingly, and a voltage sensing apparatus receiving the first driving signal and generating a sensed voltage accordingly, wherein the discharge lamp is switched among a plurality of operating modes according to the sensed voltage.

REFERENCES:
patent: 2007/0210723 (2007-09-01), Kumagai et al.
patent: 2009/0273295 (2009-11-01), Henry et al.
patent: 2010/0084988 (2010-04-01), Nagata et al.

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