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. 10, 2026
Filed:
Sep. 29, 2023
Stmicroelectronics International N.v., Geneva, CH;
Harsha Ademane, Chicago, IL (US);
Rosario Attanasio, Barrington, IL (US);
Dino Costanzo, Catania, IT;
STMicroelectronics International N.V., Geneva, CH;
Abstract
Systems, apparatuses, and methods to perform startup step detection in an internal permanent magnet synchronous machine are provided. Startup step detection may providing a motor comprising a rotor and stator, wherein the rotor may be positioned in one of six rotor step positions. The startup step detection may include determining which of the six rotor step positions the rotor is in. This may be performed by determining, prior to starting the motor, a sequence of voltage signals while taking current measurements for each voltage signal. The current measurements may be a change in current over time. Of the current measurements a largest maximum current measurement may be determined, which may be used to identify the current rotor step position.