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:
Sep. 05, 2000
Filed:
Jun. 08, 1998
Nicolino Alvaro, Turin, IT;
Plaset Spa, Moncalieri, IT;
Abstract
A device for controlling a synchronous electric motor with a permanent magnet rotor. The device comprises a stator including a winding disposed around a stack of laminations and with which is associated a permanent magnet rotor. Controlled conductor devices are connected to the stator winding and to an AC source. One or more position sensors determine the application to the control inputs of the said controlled conductor devices of electrical control signals having to states which vary as a function of the angular position of the rotor. The arrangement is such that the current is caused to flow in the stator winding in a direction which depends only on the polarity of the voltage of the source and the instantaneous position of the rotor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile