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. 22, 2005
Filed:
Sep. 26, 2003
Pascal Desbiolles, Thorens-Glieres, FR;
Jean-michael Beauprez, Mathounex sous Clermont, FR;
Pascal Desbiolles, Thorens-Glieres, FR;
Jean-Michael Beauprez, Mathounex sous Clermont, FR;
S.N.R. Roulements, Annecv Cedex, FR;
Abstract
A device for controlling an electronically switched motor which includes a coder () having a main multipole track () and a so-called 'revolution pip' multipole track (); a fixed sensor () delivering two digital position signals (A, B) and one revolution pip signal (C); a circuit for switching the currents in the phase windings of the motor which comprises*P*N switches; a control circuit for the switching circuit which is able to supply the switching signals for the switches which correspond to the state of the logic determined by the revolution pip signal (C) or by the position signals (A, B). The control device can be combined with a bearing and/or a motor equipped with such a device.