Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Transformer in the supply circuit
Patent
1980-10-27
1983-03-29
La Roche, Eugene
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Transformer in the supply circuit
315225, 315239, 315278, 315290, 315309, 315DIG7, H05B 4129
Patent
active
043785140
ABSTRACT:
Starting and operating circuit for gaseous discharge lamps has device for quickly re-starting extinguished lamps while still hot. Circuit comprises a source of alternating current, an inductive regulator ballast having its input connected to the alternating current source, and a gaseous discharge lamp connected to the output of the ballast, a sine wave oscillator circuit having its input connected to the current supply and having its output connected to a transformer connected in series between the ballast and the lamp for stepping up and applying voltage to a lamp, and a positive temperature coefficient resistor (PTCR) connected between the alternating current source and the oscillator circuit for reducing power to the oscillator circuit when the lamp is inoperative or absent.
REFERENCES:
patent: 3699385 (1972-10-01), Paget
patent: 3740609 (1973-06-01), Moerkens
patent: 3758818 (1973-09-01), Kaneda
patent: 3944876 (1976-03-01), Helmuth
patent: 4048539 (1977-09-01), Walker et al.
patent: 4087723 (1978-05-01), Chermin
patent: 4177403 (1979-12-01), Remery
General Electric Company
Jacob Fred
La Roche Eugene
Legree Ernest W.
Schlamp Philip L.
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