How do brushed motors and brushless motors work and how do they differ?

Brush motor and brushless motor has been the topic of discussion, many friends for the two principles and differences are not very well understood, in fact, from the top of the word is relatively well understood, a brush, a brushless, but it is not so simple, the following Vacuz to introduce you!

Brush motor and brushless motor working principle.

Brush motor working principle: brush motor structure is relatively simple, the core part is mainly composed of stator, rotor and carbon brush, through the current, the magnetic field rotation to get the rotating torque, and then run the output kinetic energy, while the carbon brush and commutator interaction, there is the role of electrical conductivity and commutation, making the motor run.

Brushless motor working principle: brushless motor compared to brush motor, the structure is more complex, but there is no carbon brush structure, instead of the control circuit encoder, commutation problem can be solved, the actual use of more reliable, applicable to many special industries.

Brush motor and brushless motor differences.

1. Different speed regulation: Brush motor speed regulation is mainly variable voltage speed regulation, the adjusted voltage and current through the rectifier and brush conversion, change the strength of the magnetic field, thereby changing the speed; brushless motor mainly uses frequency regulation, the voltage remains unchanged, change the ESC control signal, through the MOS tube switching rate, to achieve the speed change process.

2. The structure of brush motor is relatively simple and has been available since long ago, and the technology is relatively mature in all aspects; the structure of brushless motor is relatively complex and has been developed only in the past few years, and some aspects of technology are still to be developed, but overall it is still good.

3. Brush motor response speed, starting torque, variable speed is relatively smooth, start load more advantageous; brushless motor starting resistance is larger, starting torque is relatively small, drive load is smaller.

4. Brush motor because of the existence of carbon brushes, there is friction, easy to produce sparks, not only interference with radio equipment, and some special industries can not be used, and then the operation of the noise is larger; brushless motor to remove the brushes, no sparks when running, reducing the interference with a variety of electronic equipment, the operation of the noise is small.

5. Brushless motor is free from maintenance, long service life, the general problem also mainly lies in the bearing above; brush motor needs to replace the carbon brush at regular intervals, relatively troublesome, short service life.

The above is the brush motor and brushless motor working principle and the difference, master these basic content, help to better understand the structure of the motor, to understand the operation of the motor process.

WhatsApp/Wechat: +86 13075286997

Correo electrónico: sales@vacuz.com [fusion_form form_post_id=”431″ margin_top=”” margin_right=”” margin_bottom=”” margin_left=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””][/fusion_form]