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.

Date of Patent:
Feb. 25, 2020

Filed:

Oct. 15, 2015
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;

Inventors:

Jing Wang, Milton Keynes, GB;

Quinn Kneller, Milton Keynes, GB;

Scott Parish, Milton Keynes, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01L 27/08 (2006.01); H01F 41/04 (2006.01); H01F 27/28 (2006.01); H01F 19/06 (2006.01); H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H01F 41/041 (2013.01); H01F 19/06 (2013.01); H01F 27/2804 (2013.01); H01F 2027/2809 (2013.01); H02M 3/337 (2013.01); H02M 3/33538 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1491 (2013.01);
Abstract

An embedded transformer device includes first, second, and auxiliary windings, defined in an insulating substrate by conductive vias joined together by conductive traces. The positions of the conductive vias are arranged to optimize the isolation properties of the transformer and to reduce the coupling of the transformer by increasing the leakage inductance. The embedded transformer device provides better isolation between input side and output side windings, and allows an oscillating LC circuit to be set up in the case of a short circuit, preventing high power from extending between the input and output terminals and thereby avoiding damage to the connected electrical components.


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