A synchronous motor operates at a speed that is directly tied to the frequency of the AC voltage supply, maintaining a constant speed based on the number of magnetic poles. In contrast, an asynchronous motor typically runs slower and its speed can vary with the mechanical load it drives, relying on the slip between the rotor and the synchronous frequency to generate torque. Induction motors are a common type of asynchronous motor, where torque is produced through the interaction of the stator's magnetic field and induced currents in the rotor. Most DC motors are considered asynchronous due to the absence of a periodic time signal, although some types, like stepping motors, can be synchronous. Understanding these differences is crucial for selecting the appropriate motor type for specific applications.
