What is the difference between brushed DC motors and brushless DC motors? What are the advantages and disadvantages?

DC motors are often divided into brushed DC motors and brushless DC motors, both of which still have some differences and have their own advantages and disadvantages, how about the specifics?Vacuz briefly introduces you to it! I hope it can help you understand the basics of the motor.

Brush DC motors are better controlled, a controller can manipulate multiple motors, high starting torque, affordable prices, can be divided into four types of permanent magnets, series, parallel, rewinding, etc.. The disadvantages are lower efficiency, brushes often friction, wear quickly, the service life is relatively short, need to replace the brushes; because the brushes and arc produce electromagnetic noise, easy to noise is relatively large; because the brush friction, so the speed is limited, and can not be used in explosion-proof environment.

Advantages of brushless DC motor.

1. Brushless DC motor speed is higher compared to brushed DC motor, longer service life

2. Reliable efficiency, except for the bearings, there are basically no wearing parts, free from maintenance.

3. Equipped with drivers, encoders and sensors, can feedback information data such as speed and torque to achieve accurate control.

Disadvantages of brushless DC motors.

1. The cost is relatively high and requires an electronically commutated drive to run.

2. Brushless DC motors also usually require a gear reducer in drive applications.

The above is the difference between brush DC motors and brushless DC motors and the advantages and disadvantages of the introduction, in the actual purchase, according to the actual situation, you can choose the right motor products.

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