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:
Feb. 02, 2016
Filed:
Jun. 21, 2013
Sanyo Denki Co., Ltd., Tokyo, JP;
Takahisa Toda, Tokyo, JP;
SANYO DENKI CO., LTD., Tokyo, JP;
Abstract
A motor controller that controls energization of a motor in which a plurality of coils Uto Wthat applies torque to a rotor is arranged in a circular pattern includes: a rotation speed detection sensor that detects a rotation speed of the motor; and an energization control unit that controls energization of the plurality of coils Uto Wusing the detected rotation speed. The energization control unit sequentially energizes the plurality of coils Uto Win all energization patterns if the detected rotation speed is outside of predetermined conditions and sequentially energizes the plurality of coils Uto Win remaining energization patterns (for example, U→V phase, V→W phase, V→U phase, W→U phase, and W→V phase) excluding a partial energization pattern (for example, U→W phase) of all energization patterns if the detected rotation speed is within the predetermined conditions.