High-power factor circuit for energizing gas discharge lamps

Details High-power factor circuit for energizing gas discharge lamps High-power factor circuit for energizing gas discharge lamps

1993-02-16

1994-12-20

Argenbright, Tony M.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

With power factor control device

H02M 500, H05B 4114

Patent

active

053748751

ABSTRACT:
A circuit for powering a gas discharge lamp from a source of a first frequency AC power has a a first rectifier for converting the first frequency AC power into a first DC power, a capacitor and driver for converting the DC power to a second frequency AC power. A second rectifier is used to increase the power factor for the circuit. A control is provided to disable the second rectifier if the lamp is removed from the circuit.

REFERENCES:
patent: 4005335 (1977-01-01), Perper
patent: 4017785 (1977-04-01), Perper
patent: 4045711 (1977-08-01), Pitel
patent: 4075476 (1978-02-01), Pitel
patent: 4109307 (1978-08-01), Knoll
patent: 4808887 (1989-02-01), Fuhnrich et al.
patent: 5010277 (1991-04-01), Courier de Mere
patent: 5148087 (1992-09-01), Moisin et al.
patent: 5150013 (1992-09-01), Bobel

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