Motor control apparatus and magnetic-pole position estimating method

System and method for determining rotor shaft position of high voltage PM AC synchronous machines using auxiliary windings

Method and apparatus for estimating angles in a synchronous machine

Electronic commutation method in direct current electric motors

Sinusoidal modulation control methods and circuits for permanent magnet synchronous motors

Pole-slip protection system and method for synchronous machines

Method and device for determining a rotor position of a synchronous machine

Method for determining the rotor position of a synchronous machine operated in field-oriented manner

Control of an electrical machine

Apparatus and method of controlling an electric oil pump driving motor