Fluorescent lamp ballast

Details Fluorescent lamp ballast Fluorescent lamp ballast

1982-06-24

1985-01-29

Dixon, Harold

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Plural load device systems

315232, 315247, 315276, 315278, H05B 3700

Patent

active

044968809

ABSTRACT:
A ballast for energizing a pair of fluorescent lamps in response to power supplied by an AC line, includes a capacitor connected between one of a pair of heater winding leads which connect to a filament contained in one of the fluorescent lamps, and one of a pair of leads associated with a primary winding of the ballast, the primary winding leads being connected to the AC line. The present ballast realizes a substantial reduction in the amount of power consumed from the AC line when compared to operation of the ballast without the added capacitor.

REFERENCES:
patent: 2268512 (1941-12-01), McCarthy
patent: 2436399 (1948-02-01), Nathanson
patent: 3029363 (1962-04-01), Mauerer
patent: 3125705 (1964-03-01), Feinberg et al.
patent: 3141112 (1964-07-01), Eppert
patent: 3463964 (1969-08-01), Privett et al.
patent: 4010399 (1977-03-01), Bessone et al.
patent: 4211957 (1980-07-01), Alley
"Fluorescent Lamps" by General Electric (5 miscellaneous pp.).

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