Switch mode power supply for a gas discharge lamp

Details Switch mode power supply for a gas discharge lamp Switch mode power supply for a gas discharge lamp

2005-12-06

2005-12-06

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

C315S2090CD, C315S2090SC, C361S264000, C361S247000

Reexamination Certificate

active

06972529

ABSTRACT:
A switch mode power supply for igniting and operating a high-pressure gas discharge lamp includes an ignition sub-circuit which is coupled via a transformer to the circuit. The ignition sub-circuit has at least an ignition capacitor, and a switching element for discharging the capacitor at a desired moment in time having a control electrode. The control electrode of the switching element is connected to the commutator of the lamp circuit via a control sub-circuit having substantially passive elements.

REFERENCES:
patent: 4447759 (1984-05-01), Moerkens et al.
patent: 6204611 (2001-03-01), Bouwman et al.
patent: 6242867 (2001-06-01), Pogadaev et al.
patent: 06 349586 (1994-12-01), None
patent: 06 310287 (1995-03-01), None
patent: WO 01/6998 (2001-09-01), None

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