Inductor devices – Core forms casing
Reexamination Certificate
2005-05-17
2005-05-17
Nguyen, Tuyen T. (Department: 2832)
Inductor devices
Core forms casing
C336S198000, C336S200000, C336S212000, C323S250000
Reexamination Certificate
active
06894596
ABSTRACT:
An inverter transformer includes: a frame-core shaped substantially square; a plurality of I-cores disposed inside and coupled to the frame-core so as to provide a predetermined leakage inductance; and a plurality of primary and secondary windings provided respectively around the I-cores. The I-cores are divided into first group cores located not adjacent to one another and second group cores located not adjacent to one another but adjacent respectively to the first group cores. Magnetic fluxes generated in the first group cores flow in the same direction, magnetic fluxes generated in the second group cores flow in the same direction that is opposite to the direction of the magnetic fluxes generated in the first group cores, and respective voltages induced at secondary windings provided respectively around the first and second group cores are polarized identical with each other.
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Minebea Co. Ltd.
Nguyen Tuyen T.
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