DC Brushless Motor works
 2022/09/26 | View:11608

DC Brushless Motor uses transistor commutation technology to replace the traditional commutator a new type of DC Motor. So how does it work?


The stator windings of DC Brushless Motor must change the current direction according to the rotor's magnetic pole position to make the rotor rotate continuously, so a sensor of the rotor's magnetic pole position must be installed in the DC Brushless Motor, these sensors usually use Houle components.


The Houle element is a magnetic induction sensor that detects the polarity of a magnetic field and converts that polarity into an electrical signal that is sent to the control pole of the transistor.


DC Brushless Motor

The excitation current in the stator windings is switched according to the Houle signal, which creates a rotating magnetic field that drives the rotor.


The Houle element is connected up and down to a DC power supply via a current-limiting resistor, and a biased current flows through it, causing the transistor to cut off or turn on in the corresponding direction. Thus, in the stator W1 coil and stator W2 stator coil, it is changed by the signal of Houle element change detection to form rotary motion. The Houle element is normally installed in the DC Brushless Motor near the rotor magnetic pole.


DC Brushless Motor is widely used and can be found in many electronic devices around, including electric toothbrushes, washing machines, printers, and cars. DC Brushless Motor can run efficiently and safely in these devices.


That's how DC Brushless Motor works. If you have any other questions about it, please feel free to contact us and we will be at your service.


    Changzhou Baolong Motor Co., Ltd. is a high-tech enterprise specializing in the development, design, production and marketing of stepper motors.

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