The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2017
Filed:
Aug. 28, 2012
Naoyuki Kurita, Tokyo, JP;
Naoyuki Kurita, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A power conversion apparatus is applied to a filter circuit. A reactor of the filter circuit includes a vertical pair of yoke iron cores, in each of which a thin strip of magnetic material is rolled in a toroidal manner and magnetic leg iron cores having respective phases being a pillar formed of thin-strip shaped magnetic material, being provided on a symmetrical position on a circumference with respect to a center of the yoke iron cores, connecting the vertical pair of the yoke iron cores, and providing a coil. The reactor also includes magnetic leg iron cores for zero-phase impedance having the respective phases, each having a rectangular parallelepiped shape in which a plurality of thin strips made of magnetic material are laminated in a direction toward a periphery from the center of the yoke iron cores and being provided between the magnetic leg iron cores.