Circuit arrangement for operating a high-pressure gas discharge

Details Circuit arrangement for operating a high-pressure gas discharge Circuit arrangement for operating a high-pressure gas discharge

1983-11-25

1989-03-28

Moore, David K.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315200R, H05B 3700

Patent

active

048167215

ABSTRACT:
A circuit arrangement for operating a high-pressure gas discharge lamp (3) with a pulsatory direct current produced from an alternating voltage supply (A, B) via a full-wave rectifier (1). The output of the full-wave rectifier is shunted by a series arrangement of a diode (4) and a capacitor (5). The capacitor (5) has a value of 10 nF to 1 .mu.F and a resistor (6), which is high-ohmic with respect to a current limiter (2) in series with the lamp (3), is connected in a current circuit between the end of the capacitor facing the diode and the lamp (3). As a result, a low re-ignition voltage is attained during the head-up phase of the lamp.

REFERENCES:
patent: 3066243 (1962-11-01), Mutschler
patent: 3376470 (1968-04-01), Stone et al.
patent: 3403293 (1968-09-01), Michelsen
patent: 3780342 (1973-12-01), Grimshaw et al.
patent: 3890537 (1975-06-01), Park et al.
patent: 4316124 (1982-02-01), Verwimp et al.
patent: 4350933 (1982-09-01), Agarawalla et al.
patent: 4500812 (1985-02-01), Roche

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