However, despite the widespread application of DC motors in many fields, the challenges they face are becoming increasingly severe with the advancement of technology and the increasing environmental requirements. On the one hand, with the continuous development of AC motor technology, its performance has gradually approached or even surpassed that of DC motors, posing a threat to the market position of DC motors; On the other hand, the electromagnetic noise and interference generated by DC motors during operation also urgently need to be addressed.

In terms of application, DC motors are widely used in various situations that require precise control of speed and torque due to their excellent speed regulation performance and high starting torque. For example, in the fields of electric vehicles, electric tools, household appliances, etc., DC motors play a crucial role. In addition, in the field of industrial automation, DC motors are often used as actuators to achieve various automation control tasks.