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:
Feb. 02, 2016
Filed:
Jan. 24, 2014
Applicant:
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Inventors:
Assignee:
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); H02P 3/00 (2006.01); H02P 7/06 (2006.01); H02P 25/18 (2006.01); H02P 6/08 (2006.01);
U.S. Cl.
CPC ...
H02P 25/188 (2013.01); H02P 6/08 (2013.01);
Abstract
An inverter device includes a power supply unit and a switch controller. The power supply unit supplies AC power to an AC motor whose electric characteristics in response to a rotation speed are switchable between low speed characteristics and high speed characteristics. The switch controller switches the electric characteristics of the AC motor. The switch controller executes switching control that alternately switches the electric characteristics of the AC motor between the low speed characteristics and the high speed characteristics on the basis of the rotation speed of the AC motor.