ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,168, issued on Nov. 25, was assigned to SEW-EURODRIVE GMBH & Co. KG (Bruchsal, Germany).
"Method for determining the angular position of the rotor of an inverter-fed synchronous motor, and an apparatus for carrying out the method" was invented by Christian Hecker (Forst, Germany) and Thomas Schuster (Ottenbach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining an angular position of a rotor of a synchronous motor, having a stator winding fed by a three-phase voltage set by an inverter, includes: supplying a control signal to the inverter to set the three-phase voltage fed to the motor as a stator voltage to control a mo...