Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Plural load device systems
Patent
1984-12-20
1987-02-17
Chatmon, Saxfield
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
Plural load device systems
315185R, 315187, 315278, H05B 3900, H05B 4114
Patent
active
046442278
ABSTRACT:
A low pressure gas discharge lamp ballast circuit is provided for three series-connected low energy gas discharge lamps, in which a first starting capacitor provides a starting voltage to one of the lamps, and a second starting capacitor provides a starting voltage to a second one of the lamps in sequence, so that the ballast losses can be minimized by reducing the ratio of the voltage applied across the three lamp system to the total lamp voltage, while still maintaining the light output and not having to use expensive lamp bases and lampholders.
REFERENCES:
patent: 3080503 (1963-03-01), Brooks
patent: 3351809 (1967-11-01), Eppert
patent: 4259616 (1981-03-01), Smith
patent: 4477748 (1984-10-01), Grubbs
patent: 4525649 (1985-06-01), Knoll et al.
Hammer Edward E.
Lemmers Eugene
Swanson Dail L.
Chatmon Saxfield
General Electric Company
Herkamp Nathan D.
Jacob Fred
Schlamp Philip L.
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