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. 02, 2024

Filed:

Jan. 08, 2021
Applicants:

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

National Taipei University of Technology, Taipei, TW;

Inventors:

Yen-Shin Lai, New Taipei, TW;

Yong-Yi Huang, New Taipei, TW;

Chun-Hung Lee, New Taipei, TW;

Hao-Chieh Chang, New Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 27/24 (2006.01); H01F 27/42 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H01F 27/24 (2013.01); H01F 27/42 (2013.01); H01F 2027/2809 (2013.01); H01F 2027/2819 (2013.01);
Abstract

A planar winding transformer includes a magnetic core set and a multilayer circuit board. The magnetic core set includes two magnetic cores and two magnetic columns. The two magnetic cores are parallel to each other. The multilayer circuit board is disposed between two magnetic cores, and two magnetic columns penetrate through the multilayer circuit board. The multilayer circuit board includes two low voltage winding layers and one high voltage winding layer. Two low voltage winding layers are connected to each other in parallel, and the high voltage winding layer is disposed between two low voltage winding layers. When the high voltage winding layer receives a polarity current, at least one of the low voltage winding layers generates a corresponding induced current. Two magnetic cores and two magnetic columns form a closed path for magnetic flux.


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