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:
Aug. 09, 2016
Filed:
Apr. 12, 2012
Takayuki Yamamoto, Chiyoda-ku, JP;
Shunichi Wada, Chiyoda-ku, JP;
Katsuya Ikemoto, Chiyoda-ku, JP;
Chiaki Fujimoto, Chiyoda-ku, JP;
Takayuki Yamamoto, Chiyoda-ku, JP;
Shunichi Wada, Chiyoda-ku, JP;
Katsuya Ikemoto, Chiyoda-ku, JP;
Chiaki Fujimoto, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A resolver device () includes: a microcomputer () for outputting a control signal for driving a motor () to a drive circuit (); a sensor section () (resolver) for outputting detection values (a sine signal and a cosine signal) in accordance with a rotation angle of the motor (); and a signal circuit () provided between the microcomputer () and the sensor section (). The microcomputer () determines an abnormality when the detection values of the sensor section () are out of a first normal range and then determines return of the sensor section () to normal when the detection value is present within a second normal range and in a plurality of regions obtained by dividing the first normal range.