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. 10, 2023
Filed:
Apr. 15, 2021
Ebm-papst Mulfingen Gmbh & Co. KG, Mulfingen, DE;
Jens Krotsch, Niederstetten, DE;
Thomas Ley, Weikersheim-Laudenbach, DE;
Hiren Gondaliya, Baden-Baden, DE;
ebm-papst Mulfingen GmbH & Co. KG, Mulfingen, DE;
Abstract
A control device () is configured to reduce the commutation angle error ε of a three-phase (u, v, w) EC motor () connected via a y-configuration. The three phases (u, v, w) are commutated via a motor control () including a rotor position sensor () and a control circuit (). The rotor position sensor () senses the relative angular position of the rotor using the neutral-point potential at the neutral point of the y-configuration. The control circuit () is configured to impose a desired field weakening current component on the motor control () for reducing the commutation angle error ε.