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:
Nov. 19, 2002
Filed:
Oct. 04, 2000
Applicant:
Inventors:
Naohisa Mimura, Hamamatsu, JP;
Yoshiyuki Takabe, Hamamatsu, JP;
Shinji Makita, Kariya, JP;
Tomohiro Saitou, Kariya, JP;
Hideji Yoshida, Hashima, JP;
Assignee:
Asmo Co., Ltd., Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/100 ;
U.S. Cl.
CPC ...
H02K 1/100 ;
Abstract
A reluctance-type motor include a stator having a plurality of salient stator-poles, a rotor having a plurality of salient rotor-poles, a multi-phase coils mounted in the stator, and a driver circuit for driving said multi-phase coil. The driver circuit starts to supply drive current to the multi-phase coils when the salient rotor-poles and the salient stator-poles come across each other. In other words, the drive current is supplied to the multi-phase coils when the inductance thereof is zero.