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:
Jun. 02, 2015
Filed:
Aug. 27, 2012
Applicants:
Yasusuke Iwashita, Yamanashi, JP;
Hajime Ogawa, Yamanashi, JP;
Inventors:
Yasusuke Iwashita, Yamanashi, JP;
Hajime Ogawa, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/14 (2006.01); H02M 1/32 (2007.01); H02P 3/22 (2006.01); H02M 5/458 (2006.01); H02P 1/00 (2006.01); H02P 3/18 (2006.01); H02P 27/04 (2006.01); B60W 10/08 (2006.01); B60W 20/00 (2006.01); B60L 11/14 (2006.01); G01R 1/20 (2006.01); H02P 5/74 (2006.01); H02P 21/00 (2006.01); H02M 7/797 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02P 3/22 (2013.01); H02P 5/74 (2013.01); H02P 21/0092 (2013.01); H02M 5/458 (2013.01); H02M 7/797 (2013.01); H02M 2001/008 (2013.01);
Abstract
A motor driving device includes a converter that converts an input alternating current into a direct current, an inverter that inverts the direct current output by the converter into an alternating current for driving a motor, a voltage detecting unit that detects a voltage on a direct current output side of the converter, and a numerical control unit that causes the inverter to output a reactive current to increase electric power consumed in the motor, when the voltage detected by the voltage detecting unit exceeds a predetermined threshold.