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:
Apr. 01, 2025
Filed:
Nov. 16, 2020
Kabushiki Kaisha Yaskawa Denki, Fukuoka, JP;
Toshihiro Hanada, Fukuoka, JP;
Shoji Konakahara, Fukuoka, JP;
Keisei Inoki, Fukuoka, JP;
Masashiro Tanaka, Fukuoka, JP;
KABUSHIKI KAISHA YASKAWA DENKI, Fukuoka, JP;
Abstract
A power conversion deviceincludes a matrix converter circuitincluding a plurality of switching elements and being configured to perform bidirectional power conversion between alternating current power on a primary side and alternating current power on a secondary side, a power conversion control unitconfigured to switch on and off the plurality of switching elements in unison with a carrier wave to cause an alternating current on the secondary side to follow a control command, and a carrier wave changing unitconfigured to change, based on a nearness level between a frequency on the primary side and a frequency on the secondary side, a frequency of the carrier wave.