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The fluorescent lamp ballast
2013-03-05 14:19:03

Fluorescent ballasts by the ballast coil windings, relays, current limiting resistor and starter relay winding and starter series circuit with fluorescent tubes and relays normally closed contacts in series circuit in parallel,the parallel circuit of the ballast primary coil winding is connected to the power supply, the secondary coil winding and current limiting resistor in series, normally open relay contacts in series circuit with the primary coil windings and fluorescent series circuit in parallel. Generated in the secondary coil windings high voltage is applied to the tube ends, directly stimulate lamp strike and light-emitting, still lit the lamp filament has broken, so to extend the life of the lamp, and the fluorescent ballast simple structure, reliable performance .

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