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:
Oct. 27, 2026
Filed:
May. 09, 2024
Anpec Electronics Corporation, Hsinchu, TW;
Li-Wei Chen, Hsinchu City, TW;
Ke-Tsung Chen, Hsinchu City, TW;
ANPEC ELECTRONICS CORPORATION, Hsinchu, TW;
Abstract
A motor rotational speed limit circuit is provided. The motor rotational speed limit circuit includes a controller circuit, a detector circuit and a driver circuit. The controller circuit includes an open loop circuit and a closed loop circuit. The open loop circuit outputs an open loop rotational speed control command. The closed loop circuit outputs a closed loop rotational speed control command. The detector circuit detects a rotational speed of a motor. The driver circuit, according to the rotational speed of the motor, selects one of the open loop rotation control command and the closed loop rotation control command to output a driving signal to the motor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile