Characteristics of brushless DC motors

1. Small size, light weight, large torque;

2. Excellent torque characteristics, good torque at medium and low speeds, large starting torque, and small current;

3. It covers the performance advantages of brushed DC motors, eliminates the carbon brush structure, and has a longer service life, generally up to hundreds or thousands of hours;

4. Due to the lack of excitation loss and carbon brush loss, the efficiency of DC motors is much higher than that of brushed ones;

5. It can use stepless speed regulation, has strong overload capacity and a wide speed regulation range;

Brushless DC motors do not have mechanical brush devices. They use Hall sensors to replace brushes and commutators, and the permanent magnet material is also made of neodymium iron boron material, so the performance is better than that of brushed DC motors. High efficiency, low energy consumption, low noise, ultra-long life, high reliability, servo control, and stepless frequency conversion speed regulation are the core advantages of brushless DC motors.

Although the performance of brushless DC motors is better, they are not as easy to control as brushed DC motors. They are more complicated to control and the cost is relatively high. Therefore, when brushless DC motors can meet the parameters, most people still prefer brushed DC motors.