Ballast circuits for discharge lamps

Details Ballast circuits for discharge lamps Ballast circuits for discharge lamps

1990-04-16

1992-05-26

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Plural power supplies

Condenser in one of the supply circuits

315205, 315227R, 363 21, H05B 3700

Patent

active

051171570

ABSTRACT:
A ballast circuit for the operation of a discharge lamp includes a bridge rectifier. A capacitive energy storage device and a load circuit are connected in series across the bridge rectifier. A charge circuit provides charge to the capacitive energy storage from the load circuit in a potential so as to add to the potential from the outlet of the bridge rectifier.

REFERENCES:
patent: 4004187 (1977-01-01), Walker
patent: 4259614 (1981-05-01), Kohler
patent: 4553070 (1985-11-01), Sairanen et al.
patent: 4884180 (1989-11-01), Hoffmann
patent: 4949016 (1990-08-01), De Bijl et al.

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