Electric lamp and discharge devices: systems – Condenser in the supply circuit – Inductance in the condenser circuit
Patent
1986-07-10
1989-02-21
Boudreau, Leo H.
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Inductance in the condenser circuit
315205, 315206, 315209R, 315276, 315242, 315247, 315DIG2, 315DIG5, H05B 41232
Patent
active
048068306
ABSTRACT:
There is disclosed a device and process for starting up a fluorescent discharge lamp in which a high-frequency pulse is generated having narrow voltage peaks above the voltage required to start electric discharge and broad valleys, applied to the elements of the lamp to effect start up of fluorescence and, after start-up, the voltage automatically goes back to maintenance voltage having broad peaks at the maintenance voltage and relatively narrow valleys. The automatic cutback is effected by the load introduced by the electric discharge and the feedback from the emitter of the transistor used to generate the pulse. A capacitor is serially-connected in the lamp circuit to inhibit the flow of DC current therein.
REFERENCES:
patent: 2923856 (1960-02-01), Greene et al.
patent: 3247422 (1966-04-01), Shultz
patent: 3412287 (1968-11-01), Hehenkamp
patent: 3573544 (1971-04-01), Zonis et al.
patent: 3743918 (1973-07-01), Maitre
patent: 4318170 (1982-03-01), Cabalfin
patent: 4463286 (1984-07-01), Justice
patent: 4532456 (1985-07-01), Knoll et al.
patent: 4608523 (1986-08-01), Nilssen
patent: 4641061 (1987-02-01), Munson
Boudreau Leo H.
Hueschen Gordon W.
Kabushiki Kaisha Denkosha
Powell Mark R.
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