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. 09, 2019
Filed:
Dec. 09, 2013
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Ryuichi Takiguchi, Chiyoda-ku, JP;
Morishige Minobe, Chiyoda-ku, JP;
Satoru Nakada, Chiyoda-ku, JP;
Shuhei Niikura, Chiyoda-ku, JP;
Naohiro Motoishi, Chiyoda-ku, JP;
Yusuke Morita, Chiyoda-ku, JP;
Takanori Komatsu, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
An excitation winding is wound around each tooth of a detecting stator core. First output winding and second output winding are wound around mutually different teeth while avoiding winding of the output windings with the same phase around two teeth adjacent to each other in a circumferential direction. When the number of pole pairs of the excitation winding is M that is an integer equal to or greater than 1 and the number of salient poles of a detecting rotor is N that is an integer equal to or greater than 1, a spatial distribution of the number of turns in each of the first and second output winding is obtained by a function represented by a sine wave of a spatial order |M±N|. An error spatial order δ represented by |M−|M±N∥ and an error spatial order ε represented by |δ−M| are values other than 1 and 2.