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:
Dec. 17, 2024
Filed:
Dec. 05, 2019
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Yuki Itogawa, Tokyo, JP;
Kikuo Izumi, Tokyo, JP;
Takeshi Amimoto, Tokyo, JP;
Yu Kawai, Tokyo, JP;
Tomoaki Kimura, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H01F 38/08 (2006.01); H02M 1/44 (2007.01); H01F 38/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33584 (2013.01); H01F 38/08 (2013.01); H02M 1/44 (2013.01); H01F 2038/006 (2013.01);
Abstract
An insulating transformer includes a plurality of sub-insulating transformers connected in series. Polarity directions of all sub-windings are identical. When a current I flows from a first main terminal to a third main terminal through the first sub-winding, an interphase capacitance, and the second sub-winding, excitation inductance of the first sub-winding and excitation inductance of the second sub-winding are configured to have opposite polarities.