Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy controlled regulation of the current supply...
Patent
1975-03-13
1977-04-05
Rolinec, R. V.
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Radiant energy controlled regulation of the current supply...
315DIG4, 315DIG5, 315293, H05B 3702
Patent
active
040164519
ABSTRACT:
The low-cost lighting control apparatus for high-pressure discharge lamps utilizing an ON-OFF photocoupler to provide isolation between the relatively high voltage AC supplied to the lamp load and the relatively low voltage DC control circuitry. Preferably, the apparatus is current-feedback stabilized utilizing a feedback resistor.
REFERENCES:
patent: 3344310 (1967-09-01), Nuckolls
patent: 3449619 (1969-06-01), Stalp
patent: 3875458 (1975-04-01), Kappenhagen
Dahl Lawrence J.
Palmer W. D.
Rolinec R. V.
Westinghouse Electric Corporation
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