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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.:

US 10826422 B1

PDFFull Text
Date of Patent:
Nov. 03, 2020

Filed:

Jun. 11, 2018

Motor control circuit, control method, motor drive system, electronic device

Applicant:

Rohm Co., Ltd., Kyoto, JP;

Inventor:

Yuki Gohara, Kyoto, JP;

Assignee:

ROHM CO., LTD., Kyoto, JP;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Eduardo Colon Santana

Assistant Examiner:

Gabriel Agared

Int. Cl.
CPC ...
H02K 7/14 (2006.01); H02P 23/00 (2016.01); H02P 27/08 (2006.01); H05K 7/20 (2006.01); G06F 1/20 (2006.01); G01P 3/489 (2006.01);
U.S. Cl.
CPC ...
H02P 23/0004 (2013.01); G06F 1/206 (2013.01); H02P 23/0027 (2013.01); H02P 27/085 (2013.01); H05K 7/20136 (2013.01); H05K 7/20209 (2013.01); G01P 3/489 (2013.01);
Abstract

A control circuit includes: a cycle counter configured to measure a cycle of revolutions per minute (RPM) signal indicating an RPM of a motor to be driven to generate a digital measurement value; and a controller configured to generate a control command based on a digital target value corresponding to a target cycle of the RPM signal and the measurement value, wherein the controller switches between a first mode in which the control command is monotonously changed and a second mode in which the control command is generated based on proportional-integral (PI) control.

Find Patent Forward Citations

Gohara, Yuki. (2020). Motor control circuit, control method, motor drive system, electronic device (U.S. Patent No. 10826422). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10826422

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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