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. 20, 2015
Filed:
May. 16, 2013
Applicant:
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Inventors:
Masashi Takenouchi, Kitakyushu, JP;
Tomohiro Kawachi, Kitakyushu, JP;
Kenji Tomohara, Kitakyushu, HK;
Koji Higashikawa, Kitakyushu, JP;
Assignee:
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/18 (2006.01); H02P 6/08 (2006.01);
U.S. Cl.
CPC ...
H02P 25/18 (2013.01); H02P 6/08 (2013.01);
Abstract
Provided is an inverter apparatusconfigured to switch a current winding to an optimal winding when a rotation speed of a rotor of an AC electric motoris within a hysteresis region defined by first and second switch timings for switching a state of an armature winding between a first winding and a second winding and when the current winding differs from the optimal winding.