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:
Jun. 06, 2023
Filed:
Sep. 20, 2019
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventor:
Yasuo Ohsugi, Tokyo, JP;
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/12 (2006.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02P 27/085 (2013.01); G01R 33/123 (2013.01);
Abstract
The iron loss of an iron core excited by an inverter power supply is reduced. A modulation operation-setting devicefor the inverter power supply controls a maximum value Hmax and a minimum value Hmin of a field intensity H in at least one minor loop such that the loss (iron loss, copper loss, and switching loss) of the entire system is less than the loss of the entire system when an electric device is operated with a target waveform (excluding harmonics).