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. 27, 2011
Filed:
Jun. 20, 2007
Motonobu Ikeda, Osaka, JP;
Satoshi Yagi, Osaka, JP;
Michiya Takezoe, Osaka, JP;
Hiroyuki Kondou, Osaka, JP;
Hirotaka Doi, Osaka, JP;
Hirohito Maeda, Osaka, JP;
Motonobu Ikeda, Osaka, JP;
Satoshi Yagi, Osaka, JP;
Michiya Takezoe, Osaka, JP;
Hiroyuki Kondou, Osaka, JP;
Hirotaka Doi, Osaka, JP;
Hirohito Maeda, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
Two current threshold values are adopted, which are larger than the upper limit of current of an operating region. When a rotating speed is smaller than a speed threshold value, the current threshold value is adopted as a criterion to judge whether an input current to an inverter is abnormal, and when the rotating speed Rot is larger than that, the other current threshold value is adopted as the criterion.