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:
Aug. 26, 2025

Filed:

Aug. 17, 2020
Applicant:

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

Inventor:

William M. Polivka, Campbell, CA (US);

Assignee:

POWER INTEGRATIONS, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H01F 27/30 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33553 (2013.01); H01F 27/306 (2013.01);
Abstract

An energy transfer element that provides galvanic isolation in a power controller is disclosed herein. A magnetic core assembly has an aperture. A first power winding is positioned within the magnetic core assembly. A first communication winding and a second communication winding are positioned within the aperture such that both the first and second communication windings are perpendicular to the first power winding. The magnetic flux density produced by current in the first power winding is perpendicular to the magnetic flux density produced by current in the first communication winding and the second communication winding. For a power controller having an input-referenced controller and an output-referenced controller, the energy transfer element provides galvanic isolation between the controllers because the communication windings are electrically insulated from each other and from the magnetic core assembly.


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