Electric lamp and discharge devices: systems – Pulsating or a.c. supply
Patent
1984-11-01
1988-01-12
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
315DIG7, 315DIG5, 315290, 315307, 315224, 315247, H05B 4116, H05B 4124
Patent
active
047193905
ABSTRACT:
An inverter circuit electrically connecting a gas discharge lamp to a source of direct current voltage whereby the impedance of said lamp is resistive. Current measuring means for measuring the lamp high frequency current flow and in electrical communication with control means for controlling the on/off ratio of said inverter for maximum lamp current.
REFERENCES:
patent: 3525900 (1970-08-01), Skirvin et al.
patent: 3969652 (1976-07-01), Herzog
patent: 3999100 (1976-12-01), Dendy et al.
patent: 4042856 (1977-08-01), Steigerwald
patent: 4060752 (1977-11-01), Walker
patent: 4170747 (1979-10-01), Holmes
patent: 4240009 (1980-12-01), Paul
patent: 4251752 (1981-02-01), Stolz
patent: 4277728 (1981-07-01), Stevens
patent: 4400651 (1983-08-01), Nelle
patent: 4412154 (1983-10-01), Klein
Chatmon Saxfield
Oy Helvar
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