Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1976-09-27
1979-04-17
Smith, Alfred E.
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
315DIG5, 315DIG7, H05B 3702, H05B 3904, H05B 4136
Patent
active
041503236
ABSTRACT:
A control circuit for a battery-operated fluorescent lamp has a transistorized inverter which acts as a blocking oscillator. Lamp intensity is controlled by applying an adjustable bias, either automatic or manual, to the base of the blocking oscillator transistor.
REFERENCES:
patent: 3278861 (1966-10-01), Cunningham
patent: 3311805 (1967-03-01), Kittl et al.
patent: 3389298 (1968-06-01), Skirvin
patent: 3501674 (1970-03-01), Moore
Lee Hoi-Shing
Yeh Warner S.
Smith Alfred E.
Sonca Industries Ltd.
Wise Robert E.
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