Apparatus for operating discharge lamps utilizing a capacitor an

Details Apparatus for operating discharge lamps utilizing a capacitor an Apparatus for operating discharge lamps utilizing a capacitor an

1991-09-20

1993-07-20

Pascal, Robert J.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Plural periodic switches or multiple contact periodic switch

315246, 315241R, 315313, 315362, 315205, 315207, H05B 3700

Patent

active

052296903

ABSTRACT:
An apparatus for operating discharge lamps includes first closed circuit for connecting a discharge lamp through first switching means to a pulsating power source, second closed circuit for connecting the lamp to the power source through a series circuit of second switching means which operates during OFF period of the first switching means and an energy-storing means, and an arrangement for controlling the both switching means. A pulsating source voltage is thereby applied to the discharge lamp. The apparatus is made thus capable at least of minimizing current-limiting impedance and realizing a continuously stabilized discharge of the lamp.

REFERENCES:
patent: 4500812 (1985-02-01), Roche
patent: 4816721 (1989-03-01), Ganser et al.

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