The difference between ordinary motor and permanent magnet motor
There is no ordinary motor in the classification of motors! The power supply method is divided into: dc motor and ac motor The structure is divided into: the permanent magnet motor/induction motor/synchronous motor/the pole motor/no brush motor/transformer, etc., which is divided by excitation method.
The permanent magnet motor is the synchronous motor, which has a permanent magnet, which interacts with the magnetic field generated by the external power source and produces torque.
There are two different kinds of classifications that you can't compare. Permanent magnet motor is called permanent magnet motor, not permanent magnet (electromagnet) for permanent magnet. Dc motors with direct current, no direct current (alternating current) is ac motor. A permanent magnet can be a dc motor or ac motor (for example, a home breeze fan). In the same way, no permanent magnet can be either a dc motor or ac motor, or even an alternating current.
