Discharge lamp lighting apparatus and luminaire

Details Discharge lamp lighting apparatus and luminaire Discharge lamp lighting apparatus and luminaire

2006-03-24

2008-03-18

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S291000, C315S2090SC

Reexamination Certificate

active

07345434

ABSTRACT:
A discharge lamp lighting apparatus, comprises a DC power supply, an inverter circuit, connected to the DC power supply, and provided with at least two switching devices, and a discharge lamp energized by the inverter circuit, wherein one switching device has an on-duty complementarily different with an on-duty of the other switching device, and wherein the inverter circuit executes a switching operation in that the on-duty of the one switching device substitutes with the on-duty of the other switching device.

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patent: 5680015 (1997-10-01), Bernitz et al.
patent: 5719471 (1998-02-01), Kachmarik
patent: 5834907 (1998-11-01), Takehara
patent: 6011351 (2000-01-01), Schemm
patent: 6324078 (2001-11-01), Naruo et al.
patent: 6-283286 (1994-10-01), None

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