Fluorescent lamp operating circuit

Details Fluorescent lamp operating circuit Fluorescent lamp operating circuit

1986-05-09

1987-11-03

Moore, David K.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315101, 315105, 315293, 315DIG2, 315DIG4, 315DIG5, 315DIG7, 315175, H05B 3702, H05B 3904

Patent

active

047045639

ABSTRACT:
A fluorescent lamp operating circuit includes a high frequency electronic ballast circuit for providing a controlled output to a fluorescent lamp load. A control signal is detected from the power line carrier which includes binary data indicative of the illumination level desired. The control signal comprises a multi-bit binary signal which is detected by the control circuit and used to control the frequency of the power supply circuit so that the fluorescent light illumination level may be dimmed over a wide range.

REFERENCES:
patent: 3987356 (1976-10-01), Steigerwald
patent: 4017785 (1977-04-01), Perper
patent: 4074344 (1978-02-01), Pitel
patent: 4109307 (1978-08-01), Knoll
patent: 4188660 (1980-02-01), Knoll
patent: 4222096 (1980-09-01), Capewell
patent: 4392087 (1983-07-01), Zansky
patent: 4395659 (1983-07-01), Aoike et al.
patent: 4437040 (1984-03-01), Bay
patent: 4523128 (1985-06-01), Stamm et al.
patent: 4612479 (1986-09-01), Zansky

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