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. 11, 2017
Filed:
Dec. 22, 2015
Applicant:
Makita Corporation, Anjo-shi, Aichi, JP;
Inventors:
Yuki Kawai, Anjo, JP;
Yoshitaka Ichikawa, Anjo, JP;
Hirokatsu Yamamoto, Anjo, JP;
Ying Yang, Anjo, JP;
Assignee:
MAKITA CORPORATION, Anjo-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/04 (2016.01); H02P 6/00 (2016.01); H02P 6/14 (2016.01); H02P 27/08 (2006.01); H02P 6/15 (2016.01);
U.S. Cl.
CPC ...
H02P 6/002 (2013.01); H02P 6/001 (2013.01); H02P 6/14 (2013.01); H02P 6/157 (2016.02); H02P 27/08 (2013.01); H02P 2201/03 (2013.01);
Abstract
A motor-driven apparatus in one aspect of the present disclosure includes: a brushless motor; a full-wave rectifier circuit; a drive circuit; a controller; and a forcible stop unit. The forcible stop unit performs a forcible stop control to temporarily forcibly stop a switching operation of a plurality of switching elements during a stop period when a full-wave rectified voltage is smaller than an induced voltage generated by a plurality of coils, and the switching operation of the plurality of switching elements is to be stopped.