Equalizing discharge lamp currents in circuits

Details Equalizing discharge lamp currents in circuits Equalizing discharge lamp currents in circuits

2005-07-27

2010-02-23

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Discharge control discharge device load

C315S278000, C315S224000, C315S2090SC, C315S291000

Reexamination Certificate

active

07667410

ABSTRACT:
Methods and apparatus are disclosed for balancing currents passing through multiple parallel circuit branches and in some cases through parallel fluorescent lamps. Single transformers with multiple-leg magnetic cores are wound in specific manners that simplify current balancing. Conventional three-legged EE-type magnetic cores, with disclosed windings are used to balance current in circuits with three or more parallel branches, such as parallel connected Cold Cathode Fluorescent Lamps (CCFLs).

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