Universal ignition circuit for high pressure discharge lamps

Details Universal ignition circuit for high pressure discharge lamps Universal ignition circuit for high pressure discharge lamps

1992-04-02

1996-05-14

Pascal, Robert

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315307, H05B 3700

Patent

active

055170889

ABSTRACT:
A circuit arrangement (II) for igniting a high-pressure discharge lamp provided with a pulse transformer, a switching device and a capacitive element for a periodic charge inversion via the transformer and the switching device. The circuit arrangement is also provided with a peak current limiting impedance to protect the switching device. A voltage limiting device is added to the transformer. By the provision of the voltage limiting device, the lamp ignition is to a high degree made to be independent of lamp connection line impedances.

REFERENCES:
patent: 4072878 (1978-02-01), Engel et al.
patent: 4143304 (1979-03-01), Hitchcock et al.
patent: 4339695 (1982-07-01), Siglock
patent: 4461982 (1984-07-01), Fahnrich
patent: 4958107 (1990-09-01), Mattas et al.
patent: 5047694 (1991-09-01), Nuckolls et al.

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