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:
Sep. 29, 2015

Filed:

Oct. 22, 2013
Applicant:

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

Inventor:

Eng Hwee Quek, Singapore, SG;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 3/30 (2006.01); H01F 27/30 (2006.01); H05K 7/02 (2006.01); H01F 27/32 (2006.01); H01F 27/06 (2006.01);
U.S. Cl.
CPC ...
H05K 3/30 (2013.01); H01F 27/306 (2013.01); H05K 7/02 (2013.01); H01F 27/325 (2013.01); H01F 2027/065 (2013.01); Y10T 29/4913 (2015.01); Y10T 29/49073 (2015.01);
Abstract

Power is supplied on a circuit board assembly by attaching a drum core inductor to a circuit board. The drum core inductor has a first winding wound around the drum core inductor. The first winding has first and second ends coupled to the drum core inductor. A bobbin is attached to the circuit board. The bobbin has a second winding wound around the bobbin. The second winding has first and second ends coupled to the bobbin. The drum core inductor and the bobbin are attached to the circuit board. The drum core inductor is inside an opening of the bobbin. The drum core inductor and the bobbin are detached from each other. A power switch coupled to the first winding is switched to control a transfer of energy from an input power source through the first and second windings to a load coupled to the second winding.


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