Operational method of the sensor less electric motor system which possesses the synchronous motor and the sensor less electric motor system and the synchronous motor

摘要

As for this invention, one which in order to be induced the synthetic magnetic field to wire-wound axial direction of the coil coil by the alternating field which is impressed the many stator coil (15) with, the portable child which at least possesses one which makes the portable child magnetic field of main magnetic flux direction cause permanent magnet (16) with, by the help of the stator coil is provided in the portable child coil coil (20) with it includes at least, the synchronous motor which differs the stator coil (15) the synthetic inductance regarding wire-wound axial direction the portable child (16) in the position where it differs (12) it regards.