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:
Apr. 14, 2026

Filed:

Dec. 16, 2021
Applicants:

Chicony Power Technology Co., Ltd., New Taipei City, TW;

National Taipei University of Technology, Taipei, TW;

Inventors:

Yen-Shin Lai, Taipei City, TW;

Yong-Yi Huang, Taipei City, TW;

Hao-Chieh Chang, New Taipei City, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H05K 1/16 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H05K 1/165 (2013.01); H01F 2027/2809 (2013.01); H01F 2027/2819 (2013.01);
Abstract

A printed circuit board of a planar transformer includes a first column hole, a second column hole, and a plurality of winding layers. At least one of the winding layers includes a first winding and a second winding connected in series. The first winding surrounds the first column hole and has a first opening direction. The second winding surrounds the second column hole and has a second opening direction. The first opening direction is different from the second opening direction. Consequently, the windings on the plurality of layers may be connected in series through conductive holes of the PCB to increase the number of winding turns.


Find Patent Forward Citations

Lai, Yen-Shin. (2026). Planar transformer (U.S. Patent No. 12603218). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12603218

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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