Dual lamp electronic ballast with independent control means

Details Dual lamp electronic ballast with independent control means Dual lamp electronic ballast with independent control means

1992-09-08

1994-03-15

Pascal, Robert J.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Plural discharge devices and/or rectifiers in the supply...

315219, 315244, 315251, 315312, 315324, 315DIG7, H05B 3700

Patent

active

052948684

ABSTRACT:
An electronic ballast circuit for two fluorescent lamps connected in parallel. A single switching inverter connected through a common coupling circuit provides high frequency alternating current for operation of both lamps independently of each other insuring operation of one lamp should the other cease operation. A dual toroidal transformer in the inverter insures both lamps receive current of the same frequency.

REFERENCES:
patent: 4415839 (1983-11-01), Lesea
patent: 4525648 (1985-06-01), De Bijl et al.
patent: 5047691 (1991-09-01), Lesea et al.

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