Abstract: the ways of stepping motor based on excitation, can be divided into two kinds, one of which is electric excitation stepper motor, the motor structure and asynchronous motor is relatively similar, but there is a big difference. In this paper, from the following several aspects to meet electrical excitation stepper motor. One, the structure of electric excitation stepper motor structure is relatively complex, here only a brief introduction of its magnetic field coil, winding and the rotor, the rotor is made of salient pole type, because this kind of stepper motor does not start implementation, thus will install the squirrel-cage winding in the rotor, the effect of winding is to start the motor. Field coil of the motor is installed on the magnetic core, coil, is in series between the alternating polarity is on the contrary, coil excitation is done by battery or small dc generator. Second, the working principle of the electric field working principle of stepper motor is as follows: when the three-phase ac power to the stator winding up, there will be a rotating magnetic field generated in the motor, the squirrel-cage winding can produce certain induced current for cutting lines of magnetic force, under the driving of induced current, the motor will rotate, when the rotation speed to slightly lower than the speed of the rotating magnetic field, the dc excitation coil, magnetic pole is produced on the rotor. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
