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:
Dec. 07, 2021
Filed:
May. 14, 2018
Sinfonia Technology Co., Ltd., Tokyo, JP;
Makoto Maruyama, Tokyo, JP;
Sinfonia Technology Co., Ltd., Tokyo, JP;
Abstract
There is provided a control device for a synchronous electric motor that controls a drive of the synchronous electric motor. The control device includes: a limit value setting part configured to set a limit value for an output torque related value that is related to an output torque of the synchronous electric motor according to a rotation speed of the synchronous electric motor; a command generator configured to generate a voltage command based on an input command and the limit value without feeding back a current flowing through the synchronous electric motor; a PWM signal generator configured to generate a PWM signal for controlling the drive of the synchronous electric motor based on the voltage command; and a drive controller configured to control the drive of the synchronous electric motor using the PWM signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile