Electric Machinery Is Divided According To The Type Of Working Power Supply
Electric machinery can be divided into dc motor and ac motor according to the type of working power supply.
1) dc motor can be divided by structure and working principle: brushless dc motor and brushless dc motor.
Brushless dc motor can be divided into permanent magnet dc motor and electromagnetic dc motor.
Electromagnetic dc motors are divided into series dc motors, parallel dc motors, separately excited dc motors and compound dc motors.
Permanent magnet dc motor: rare earth permanent magnet dc motor, ferrite permanent magnet dc motor and alnico cobalt permanent magnet dc motor.