Circuit for powering a fluorescent lamp having a transistor comm

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition

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315247, 315DIG7, H04B 4129

Patent

active

054344778

ABSTRACT:
A circuit with a transistor common to both the inverter and the boost converter powers a gas discharge lamp. In a half-bridge inverter, a boost inductor is coupled between the rectifier and the junction between two switching circuits.

REFERENCES:
patent: 4347474 (1982-08-01), Brooks et al.
patent: 4388562 (1983-06-01), Josephson
patent: 5019959 (1991-05-01), MacDonald et al.
patent: 5063331 (1991-11-01), Nostwick
patent: 5223767 (1993-06-01), Kulka
patent: 5291101 (1994-03-01), Chandrasekaran
patent: 5313142 (1994-05-01), Wong

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