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:
Nov. 19, 2013
Filed:
Nov. 22, 2011
Applicants:
Tetsuo Yamato, Kyoto, JP;
Takashi Fujimara, Kyoto, JP;
Inventors:
Tetsuo Yamato, Kyoto, JP;
Takashi Fujimara, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A motor driver includes a control portion, for performing variable control on a torque or rotation speed of a motor through a control signal; and an output mode selection circuit, for sending an indication to the control portion when the control signal is abnormal, so that the motor enters an action status corresponding to a selection signal.