DC servo motors can be applied to spark machines, mechanical hands, precision machines and other equipment. Besides, servo motors are also commonly used in robots and industrial automation, lithium battery equipment, photovoltaic equipment, high-end CNC machine tools and small CNC CNC machine tools, etc. [4] It can be equipped with a 2500P/R resolution encoder and tachometer, and can also be equipped with a reduction gearbox, which helps improve the accuracy and torque output of mechanical equipment. Its speed regulation performance is good, and under the same weight and volume, the output power is usually higher than that of AC motors and stepper motors of the same specification. The torque fluctuation of the multi-stage structure is smaller.