Electronic ballast circuit for a fluorescent light

Details Electronic ballast circuit for a fluorescent light Electronic ballast circuit for a fluorescent light

1993-05-26

1995-08-22

Pascal, Robert J.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

315102, 315106, 315107, 315DIG5, H05B 3900

Patent

active

054443334

ABSTRACT:
An energy efficient and cost effective electronic ballast circuit which lights a fluorescent tube but which avoids excessive voltages or pulsing of the tube. The starter circuit preheats the filaments for a time sufficient to ensure quick ignition upon application of an appropriate voltage, then ceases the flow of current after the tube is lighted to avoid wasting energy.

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patent: 5111118 (1992-05-01), Fellows et al.
patent: 5117158 (1992-05-01), Arbel
patent: 5122712 (1992-06-01), Hirschmann

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