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.:

US 8988177 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 24, 2015

Filed:

May. 30, 2014
Applicant:

Marvell International Ltd., Hamilton, BM;

Inventors:

George Shengshi Dai, Sunnyvale, CA (US);

Jesus Paz, San Jose, CA (US);

Hongyan Li, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 3/00 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 3/00 (2013.01); H01F 41/0206 (2013.01);
Abstract

Magnetic cores are described that include a first magnetic material with a first magnetic permeability, forming at least part of a body of the magnetic core, and a second magnetic material that has a second magnetic permeability positioned in a corner region of the body of the magnetic core. The second magnetic material is disposed within the body such that a plurality of magnetic flux paths of different overall lengths traverses the corner region. The plurality of potential magnetic flux paths have a corresponding plurality of effective magnetic reluctances, with different paths of the plurality of magnetic flux paths having different associated first lengths of a first plurality of lengths and different associated second lengths of a second plurality of lengths such that the corresponding plurality of magnetic reluctances of the plurality of magnetic flux paths are substantially equivalent through the different overall lengths.


Find Patent Forward Citations

Dai, George. (2015). Magnetic core having flux paths with substantially equivalent reluctance (U.S. Patent No. 8988177). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8988177

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