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:
Sep. 24, 2013
Filed:
Oct. 20, 2010
Applicants:
Ryo Sakaguchi, Chiyoda-ku, JP;
Makoto Itoi, Chiyoda-ku, JP;
Inventors:
Ryo Sakaguchi, Chiyoda-ku, JP;
Makoto Itoi, Chiyoda-ku, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotation-position detection system according to the present invention is configured with a resolver mounted in a brushless motor and a motor controller. The motor controller outputs an excitation signal to the resolver and an A/D converter thereof alternately applies analogue/digital conversion to a sine wave signal and a cosine wave signal outputted from the resolver so that a rotation position of the motor is calculated.