This is a kind of electromagnetic device. The motor can be divided into many kinds according to the type of working power supply can be divided into DC motor and AC motor. Its main role is to produce driving torque, as the power source of electrical appliances or various machinery. An electric machine factory makes electric machines. Generally do some DC motor, AC motor, some advanced is the servo motor. Motor commonly known as motor is based on the law of electromagnetic induction to realize energy conversion or transmission of an electromagnetic device. Its main role is to produce driving torque, as electrical appliances or a variety of mechanical power source. Generator is represented by the letter G in the circuit. Its main role is to convert mechanical energy into electric energy. At present, the most commonly used is to use heat and water energy to drive the generator rotor to generate electricity. Motors can be divided into many types, as follows: According to the type of power supply: can be divided into DC motor and AC motor. 1. Dc motor can be divided into brushless DC motor and brushless DC motor according to its structure and working principle. 2, brush DC motor can be divided into: permanent magnet DC motor and electromagnetic DC motor. 3, electromagnetic DC motor division: series DC motor, shunt DC motor, his DC motor and compound DC motor. 4, permanent magnet DC motor division: rare earth permanent magnet DC motor, ferrite permanent magnet DC motor and Al-nickel-cobalt permanent magnet DC motor.
