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:
Jan. 20, 2015
Filed:
Sep. 12, 2011
Applicants:
Shin Higashiyama, Sakai, JP;
Satoshi Yagi, Sakai, JP;
Inventors:
Shin Higashiyama, Sakai, JP;
Satoshi Yagi, Sakai, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/00 (2006.01); H02P 6/24 (2006.01); H02P 29/02 (2006.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02P 6/24 (2013.01); H02P 29/02 (2013.01); H02P 27/06 (2013.01);
Abstract
A motor driving system including command value output means configured to output an analog value according to a rotation speed command; a first power line having first switching means; a drive circuit, to which power is supplied via the first switching means and the first power line, driving a motor supplying rotation based on the analog value; and switching control means configured to make the first switching means nonconductive when the analog value is smaller than a first predetermined value, and independent of the command value output means.