Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Plural discharge devices and/or rectifiers in the supply...
Patent
1975-06-12
1977-01-04
La Roche, Eugene
Electric lamp and discharge devices: systems
Discharge device and/or rectifier in the supply circuit
Plural discharge devices and/or rectifiers in the supply...
315194, 315200R, 315227R, 315247, 315DIG7, H05B 4116
Patent
active
040016374
ABSTRACT:
A ballast circuit for coupling a lamp to an AC power source and having in series between the source and lamp a non-dissipative current limiting capacitor feeding a rectifier, the output of the rectifier being connected to a smoothing filter. The ballast lends itself particularly to use in connection with a dimmer control, and permits the use of a secondary path or bypass around the dimmer control through another capacitor feeding a rectifier formed as a diode bridge, thereby providing a minimum current level path to the lamp.
REFERENCES:
patent: 3037147 (1962-05-01), Genuit et al.
patent: 3780342 (1973-12-01), Grimshaw et al.
patent: 3819982 (1974-06-01), Nelson
La Roche Eugene
Lutron Electronics Co. Inc.
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