An improved startup device for the rotor of a permanent-magnet synchronous motor, particularly adapted for liquid conveyance pumps, such as those used in electrical household appliances or the like, which are equipped with a permanent-magnet synchronous motor of the type comprising a stator unit with...http://www.google.es/patents/US5668425?utm_source=gb-gplus-sharePatente US5668425 - Startup device for the rotor of a permanent-magnet synchronous motor
Startup device for the rotor of a permanent-magnet synchronous motor
