Discharge lamp lighting device

Details Discharge lamp lighting device Discharge lamp lighting device

1989-03-22

1990-10-02

Laroche, Eugene R.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

315224, 315DIG7, 315245, H05B 4124

Patent

active

049610295

ABSTRACT:
A discharge-lamp lighting device comprises a voltage generating circuit for generating a high-frequency voltage for lighting a discharge lamp, a self-oscillating device provided in the path of lamp current flowing through the discharge lamp for exciting the voltage generating circuit to self-oscillation, a direct current blocking element connected in series with the self-oscillating device for blocking the flow of a direct current in the self-oscillating device, and a bypass element connected in parallel with the direct current blocking element and the self-oscillating device for bypassing the direct current.

REFERENCES:
patent: 3263125 (1966-07-01), Grenuit
patent: 3467887 (1969-09-01), Skirvin
patent: 3691450 (1972-09-01), Cox
patent: 3749976 (1973-07-01), Colyn
patent: 3922582 (1975-11-01), Pitel
patent: 4127797 (1978-11-01), Perper
patent: 4392087 (1983-07-01), Zansky
patent: 4513226 (1985-04-01), Josephson
patent: 4587461 (1986-03-01), Hamlet
patent: 4734624 (1988-03-01), Nagase et al.
patent: 4912374 (1990-03-01), Nagase et al.

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