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. 21, 2017

Filed:

Sep. 17, 2015
Applicant:

Nxp B.v., Eindhoven, NL;

Inventor:

Humphrey de Groot, Nijmegen, NL;

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H02M 7/217 (2006.01); H01F 27/29 (2006.01); H01F 27/38 (2006.01); H01F 38/42 (2006.01); H02M 1/44 (2007.01); H02M 3/335 (2006.01); H02M 1/00 (2006.01); H02M 1/12 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2885 (2013.01); H01F 27/2823 (2013.01); H01F 27/29 (2013.01); H01F 27/385 (2013.01); H01F 38/42 (2013.01); H02M 1/44 (2013.01); H02M 3/335 (2013.01); H02M 3/33592 (2013.01); H02M 7/217 (2013.01); H01F 27/289 (2013.01); H02M 2001/0006 (2013.01); H02M 2001/0064 (2013.01); H02M 2001/123 (2013.01);
Abstract

A transformer () comprising a primary-side auxiliary winding (, wherein in use the primary-side auxiliary winding () is configured such that a first electric potential distribution is induced in the primary-side auxiliary winding (); and a secondary-side auxiliary winding () configured such that a second electric potential distribution is induced in the secondary-side auxiliary winding (). The primary-side auxiliary winding () is physically located between (a) a main pair of windings; and (b) the second-side auxiliary winding (). A first portion of the secondary-side auxiliary winding () is positioned adjacent to a shield-portion of the primary-side auxiliary winding () such that the first electric potential distribution matches the second electric potential distribution: (1) along the respective lengths of the first portion of the secondary-side auxiliary winding () and the shield-portion of the primary-side auxiliary winding (); and (2) over a frequency range that is greater than a particular threshold frequency.


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