Many friends like to compare the brushless DC motor and the permanent magnet synchronous motor, comparing the performance, price, principle, etc. of the two, so what are the differences and differences between the two? In what ways? Let Vacuz briefly introduce you! Hope it can help everyone!

DC 모터

In fact, for brushless DC motors and permanent magnet synchronous motors, there is not much difference in structure between the two. The main differences lie in these aspects:

1. The difference in definition. The brushless DC motor is generally a combination of the motor and the controller. It is a whole, that is, a system. Generally, the overall performance must also be considered. The motor and the controller cannot complete the work alone; the permanent magnet A synchronous motor is a motor, an independent device that can complete the work independently.

2. In terms of performance and design, brushless DC motors use electronic commutation, focusing on the characteristics of the system, such as speed regulation; permanent magnet synchronous motors focus on the performance of the motor itself, voltage waveform, power factor, efficiency, etc.

3. In terms of back EMF waves, generally speaking, brushless DC motors are mainly square waves, while permanent magnet synchronous motors are often sine waves.

4. In terms of control angle, because the brushless DC motor is a system, it does not need too many algorithms. According to the controller and electronic commutation, the rotor position energizes the winding; while the permanent magnet synchronous motor needs some algorithms in the frequency conversion speed regulation, such as current work etc.

BLDC Brushless DC Motor

What are the differences and differences between brushless DC motors and permanent magnet synchronous motors? In what ways? A brief explanation has been made above, and Vacuz hopes that this little knowledge can help everyone!

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