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. 16, 2016
Filed:
May. 05, 2015
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Takashi Yoshiya, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 19/20 (2006.01); H02P 6/00 (2006.01); H02P 25/02 (2006.01); G11B 19/28 (2006.01); G11B 19/26 (2006.01);
U.S. Cl.
CPC ...
H02P 6/002 (2013.01); G11B 19/26 (2013.01); G11B 19/28 (2013.01); H02P 25/028 (2013.01);
Abstract
A current detection circuit for detecting a maximum current value in a three-phase motor includes an identifier configured to identify a maximum current phase having the maximum current value among phases of the motor, and a detector configured to detects the maximum current value by summing current values of phases other than the maximum current phase when the current direction in the maximum current phase is a predetermined first direction.
Yoshiya, Takashi. (2016). Current detection circuit, motor driving device, magnetic disk storage device, and electronic appliance (U.S. Patent No. 9263977). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9263977
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile