Discharge lamp operating apparatus and method

Details Discharge lamp operating apparatus and method Discharge lamp operating apparatus and method

1984-08-10

1985-06-18

Dixon, Harold

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Plural load device systems

315107, 315244, H05B 3900

Patent

active

045237956

ABSTRACT:
A process for operating a discharge lamp with an arc drop of not less than about 75% of a given service voltage includes the steps of series connecting a ballast and discharge lamp, coupling the series connected ballast and discharge lamp to a service voltage source and shunting the discharge lamp with a means for developing a pulse potential at or near the beginning of each half-cycle of the service voltage. Also, a series connected inductive ballast and discharge lamp are connected to a service voltage source and a non-linear dielectric element and preheat switching means each shunting the discharge lamp.

REFERENCES:
patent: 3924155 (1975-12-01), Vogeli
patent: 3983449 (1976-09-01), Dear et al.
patent: 3996495 (1976-12-01), Herman
patent: 4079292 (1978-03-01), Kaneda
patent: 4119886 (1978-10-01), Jyomura et al.
patent: 4347462 (1982-08-01), Adachi
patent: 4360762 (1982-11-01), Yamamoto et al.
patent: 4370601 (1983-01-01), Horii et al.

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