Low- and very low-power electric motors for operation on an AC network.
Just as with
single-phase asynchronous motors, the stator winding consists of a main and an auxiliary phase. For generating a rotating field, the auxiliary phase is mains-held via a capacitor or designed as a shaded-pole winding.
Depending on the design of the rotor, a difference is made between
permanent magnet motors,
hysteresis motors and
reluctance motors.
All single-phase synchronous motors show a typical synchronous behaviour, i. e. they run at a constant speed determined by mains frequency and number of pole pairs, slip out of synchronism when reaching the stall torque, stop or continue running asynchronously.
