Fluorescent lamp electrode disconnect arrangement

Details Fluorescent lamp electrode disconnect arrangement Fluorescent lamp electrode disconnect arrangement

1991-03-21

1993-05-04

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Pulsating or a.c. supply to the cathode or heater circuit

315 97, 315 98, 315101, 315105, 315DIG5, H05B 4136

Patent

active

052085112

ABSTRACT:
A fluorescent lamp system including a ballast with primary and secondary windings and a switch for each electrode of the lamp system. Each switch is operable in response to the voltage across its associated lamp after its associated lamp turns on to interrupt the connection of an associated electrode to its associated heater winding and wherein at least one of said heater windings is a portion of the secondary winding.

REFERENCES:
patent: 4010399 (1977-03-01), Bessone et al.
patent: 4079292 (1978-03-01), Kaneda
patent: 4399391 (1983-08-01), Hammer et al.
patent: 4661745 (1987-04-01), Citino et al.
patent: 4954749 (1990-09-01), Crawford

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