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:
May. 03, 2016

Filed:

Nov. 20, 2013
Applicant:

Power Integrations, Inc., San Jose, CA (US);

Inventors:

Jason E. Cuadra, San Jose, CA (US);

John R. Estabrooks, Richmond, CA;

Raymond K. Orr, Kanata, CA;

Assignee:

Power Integrations, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 27/30 (2006.01); H01F 38/14 (2006.01); H01F 27/32 (2006.01); H01F 27/34 (2006.01); H02M 3/338 (2006.01); H02M 1/44 (2007.01);
U.S. Cl.
CPC ...
H01F 38/14 (2013.01); H01F 27/324 (2013.01); H01F 27/34 (2013.01); H02M 3/3382 (2013.01); H02M 1/44 (2013.01); Y02B 70/1433 (2013.01);
Abstract

An energy transfer assembly includes first and second windings wound around a bobbin. The first winding has a first number of layers proximate to a first end and a second number of layers proximate to a second end of the bobbin. The second winding has a third number of layers proximate to the first end and a fourth number of layers proximate to the second end. At least a portion of one of the first and second windings overlaps at least a portion of the other one of the first and second windings. A degree of overlap between the first and second windings is non-uniform. An isolation barrier is between the first and second windings and around the bobbin. A distance between the isolation barrier and an axis of the bobbin varies along the length of the bobbin.


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