Circuit arrangement for operating electric lamps

Details Circuit arrangement for operating electric lamps Circuit arrangement for operating electric lamps

2006-05-09

2006-05-09

Philogene, Haissa (Department: 2828)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S219000, C315S246000, C315S2090SC, C315S291000, C315SDIG002, C363S056030

Reexamination Certificate

active

07042166

ABSTRACT:
The invention relates to a circuit arrangement for operating electric lamps (5), in particular dielectric barrier discharge lamps, having an input stage (1) in the form of a voltage-increasing converter, in particular a step-up converter, and at least one subsequent further circuit stage (2), for example a flyback converter in the form of a pulse stage. An intermediate circuit overcurrent protection device (3) is connected between the step-up converter (1) and the flyback converter (2) and protects the flyback converter (2) in the event of a fault, specifically in particular if the input overcurrent protection device (1) does not respond.

REFERENCES:
patent: 4870327 (1989-09-01), Jorgensen
patent: 5068570 (1991-11-01), Oda et al.
patent: 5604410 (1997-02-01), Vollkommer et al.
patent: 5740021 (1998-04-01), Lecheler et al.
patent: 6034470 (2000-03-01), Vollkommer et al.
patent: 6108220 (2000-08-01), Franke
patent: 6323600 (2001-11-01), Statnic et al.
patent: 6445137 (2002-09-01), Okamoto et al.
patent: 6717374 (2004-04-01), Krummel
patent: 6731078 (2004-05-01), Huber et al.
patent: 2002/0047640 (2002-04-01), Ito et al.
patent: WO 90/09729 (1990-08-01), None
Abstract, JP 10 315849 (Dec. 2, 1998).

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