Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit
Patent
1993-09-28
1995-08-08
Pascal, Robert J.
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
315105, 315106, 315127, 315DIG2, 315DIG5, H05B 3900
Patent
active
054402050
ABSTRACT:
A fluorescent lamp starter which includes: a series circuit to be connected to a power source for supplying an AC voltage, including a ballast and a fluorescent lamp equipped with electrodes; a transistor having a collector and an emitter connected through a diode between the electrodes on an opposite side of the fluorescent lamp in which the power source is not connected; a control voltage supply means having a resistance means and a capacitor, which are operated by a voltage between the collector and the emitter of the transistor; and a transistor base control means for switching the transistor by a total voltage of a part of a voltage generated in the resistance means of the control voltage supply means and a voltage generated in the capacitor thereof.
REFERENCES:
patent: 3875459 (1975-04-01), Remery et al.
patent: 4023066 (1977-05-01), Smulders
patent: 5138236 (1992-08-01), Bobel et al.
Ito Kazuhiko
Sugita Kazushige
Tahara Tetsuya
Yoshikawa Nobuhisa
Matsushita Electric - Industrial Co., Ltd.
Pascal Robert J.
Ratliff Reginald A.
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