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:
Apr. 14, 2025
Filed:
Nov. 16, 2022
Magnetek, Inc., Menomonee Falls, WI (US);
John A. Backman, Cedarburg, WI (US);
Bryan Radke, West Allis, WI (US);
Magnetek, Inc., Menomonee Falls, WI (US);
Abstract
A motor drive receives a position feedback signal from an encoder operatively connected to a motor. The motor drive executes multiple position determination modules to determine multiple approximate motor shaft positions. On each iteration of a position determination module, the motor drive samples the feedback signal, increments a pulse counter when a new encoder pulse is received, adds the pulse counter to a high-resolution pulse counter register, and calculates an approximate motor position as a function of the value of the high-resolution pulse count register. The motor drive averages the multiple approximate positions, and the result is used by a speed regulator module executed on the same motor drive to achieve the desired operation of the motor. The speed regulator iterates at a slower rate than any of the multiple position determination modules.