Ballast for a gas discharge lamp and a method of controlling...

Details Ballast for a gas discharge lamp and a method of controlling... Ballast for a gas discharge lamp and a method of controlling...

2006-12-21

2008-11-11

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S247000, C315S224000, C315S2090SC, C315S291000

Reexamination Certificate

active

07449846

ABSTRACT:
A ballast that comprises a DC-DC converter, a DC-AC converter, a lighting voltage generator and a control unit. A difference in voltage between input terminals of the lighting voltage generator is generated by a voltage step-up circuit of the “self-boosting” type from a DC voltage supplied by the DC-DC converter and an auxiliary voltage source V0. The ballast makes it possible to obtain a voltage level V2that is equal to twice a first voltage level V1increased by the auxiliary voltage V0.

REFERENCES:
patent: 6294879 (2001-09-01), Nagase et al.
patent: 6366030 (2002-04-01), Ito et al.
patent: 0684754 (1995-11-01), None
patent: 0684755 (1995-11-01), None
patent: 2791218 (2000-09-01), None

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