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:
May. 03, 2016
Filed:
Jan. 11, 2013
Yu Hirotani, Chiyoda-ku, JP;
Ryuichi Takiguchi, Chiyoda-ku, JP;
Yuji Takizawa, Chiyoda-ku, JP;
Tetsuya Kojima, Chiyoda-ku, JP;
Masatsugu Nakano, Chiyoda-ku, JP;
Satoru Akutsu, Chiyoda-ku, JP;
Yu Hirotani, Chiyoda-ku, JP;
Ryuichi Takiguchi, Chiyoda-ku, JP;
Yuji Takizawa, Chiyoda-ku, JP;
Tetsuya Kojima, Chiyoda-ku, JP;
Masatsugu Nakano, Chiyoda-ku, JP;
Satoru Akutsu, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-ku, JP;
Abstract
The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive method for a brushless motor. The brushless motor includes an armature constituted by an armature core having armature windings of a plurality of phases, and a field pole constituted by a field pole core having a plurality of permanent magnets. A voltage, in which at least a 5th order harmonic component is superimposed on a 1st order fundamental wave of a voltage under predetermined phase difference condition and amplitude condition in order to increase a 1st order fundamental wave peak of the applied voltage over an applied voltage peak, is applied to the armature windings.