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:
Jul. 07, 2026
Filed:
Mar. 27, 2024
Rohm Co., Ltd., Kyoto, JP;
Tatsuro Shimizu, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
The present disclosure provides a controller circuit, which is a controller circuit of a motor. The controller circuit includes: a compensator, configured to generate a manipulated amount corresponding to an error between a detected value of a control amount of the motor and a command value of the control amount; and a disturbance observer. The disturbance observer has a transfer function of a system in which the command value is an input, and the control amount is an output. The disturbance observer is configured to generate a virtual control amount by inputting the command value to the transfer function and correct the command value based on a disturbance estimated value according to a difference between the virtual control amount and the detected value of the control amount.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile