Output circuit for an electronic ballast system

Details Output circuit for an electronic ballast system Output circuit for an electronic ballast system

1984-08-31

1985-07-30

Dixon, Harold

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

315221, 315222, 315244, 315DIG7, H05B 3702

Patent

active

045324565

ABSTRACT:
The above and other objects, advantages and capabilities are achieved in one aspect of the invention by an output circuit for an electronic ballast system. The circuit includes N sets of output connections for accepting N lamps. The lamps are driven by an output autotransformer coupled to the lamps through a feedback winding that is used to apply a feedback signal to an inverter drive circuit. Capacitive impedances are coupled across the lamps so that the capacitances, the lamp filaments, the feedback winding, and the output transformer form a circuit loop. The capacitances are chosen to have an impedance, at the inverter operating frequency, less than the pre-ignition impedance of the lamps and greater than the post-ignition impedance.

REFERENCES:
patent: 2291355 (1942-07-01), Simmon
patent: 3080503 (1963-03-01), Brooks
patent: 3753071 (1973-08-01), Engel et al.
patent: 3778677 (1973-12-01), Kriege
patent: 4109307 (1978-08-01), Knoll
patent: 4188661 (1980-02-01), Bower
patent: 4259614 (1981-03-01), Kohler
patent: 4353010 (1982-10-01), Knoll

Affiliated with

Also associated with

Rating

Output circuit for an electronic ballast system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Output circuit for an electronic ballast system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Output circuit for an electronic ballast system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2375277