Principle of motor operation

Dc brushless motor plays a significant role in the production process, many enterprises will encounter a variety of problems when using the motor, related to many factors, the main one is some current or use method above the factors, these factors have a lot of impact on the production, DC motor in the production process not only energy saving, the service life is also very long, Next, DC brushless motor manufacturers introduce the operating principle of DC brushless motor.

The structure of the brushless DC motor is not very complex, each structure has its use, the permanent magnet rotor can help rotate, the multi-pole winding stator can help carry out the operation of the machine, and the position sensor is the role of the perception of the operation program. The change of position sensing is affected by the rotor, and the position of the rotor changes during the working process, which can in turn affect the change of the stator, so that the role of the sensor can be well reflected. In other words, the position of the rotor magnetic pole relative to the stator winding is detected, and the position sensing signal is generated at the determined position, which is processed by the signal conversion circuit to control the power switching circuit, and the winding current is switched according to the relevant logical relationship. The operating voltage of the stator winding is provided by the electronic switching circuit controlled by the position sensor output. Dc brushless motor uses semiconductor switching devices to achieve electronic commutation, that is, electronic switching devices instead of the traditional contact commutator and brush. It has the advantages of high reliability, no commutation spark, low mechanical noise, and is widely used in recording stand, video recorder, electronic instrument and automatic office equipment.

The above is the operation principle of the brushless DC motor introduced by Xiaobian. We need to constantly upgrade the technology of the motor, so that it can be applied to our production. At present, the price gap of DC brushless motor is also quite large, which is mainly related to the quality and brand of DC brushless motor, relatively speaking, the more expensive products are also better in all aspects.