Description with a single-phase capacitive motor: a single-phase motor has two windings, namely the starting winding and the running winding. The two windings are 90 degrees apart in space. A capacitor with a large capacity is connected in series with the starting winding. When the running winding and the starting winding pass single-phase alternating current, the current in the starting winding is 90 degrees ahead of the running winding current due to the action of the capacitor, and reaches the maximum value first. value. Two identical pulsed magnetic fields are formed in time and space, so that a rotating magnetic field is generated in the air gap between the stator and the rotor. Under the action of the rotating magnetic field, an induced current is generated in the rotor of the motor, and the interaction between the current and the rotating magnetic field produces The electromagnetic field torque makes the motor spin.
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