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.
Patent No.:
Date of Patent:
Oct. 22, 2024
Filed:
Jan. 09, 2023
Applicant:
Analog Devices International Unlimited Company, Limerick, IE;
Inventors:
Baoxing Chen, Westford, MA (US);
Wenhui Qin, Shanghai, CN;
Yuanyuan Zhao, Malden, MA (US);
Xin Yang, Beijing, CN;
Shaoyu Ma, Shanghai, CN;
Assignee:
Analog Devices International Unlimited Company, Limerick, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/36 (2006.01); H01F 27/28 (2006.01); H01L 23/552 (2006.01); H01L 23/64 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2885 (2013.01); H01F 27/36 (2013.01); H01L 23/552 (2013.01); H01L 23/645 (2013.01); H05K 1/0233 (2013.01);
Abstract
Micro-scale planar-coil transformers including one or more shields are disclosed. The one or more shields can block most common-mode current from crossing from one side to another side of a transformer. Reduction of common-mode current crossing the transformer results in reduction of dipole radiation, which is the main component of electromagnetic interference (EMI) in some transformers.