DC servo motors are divided into brushed and brushless motors. Brushed DC servo motor - low cost, simple structure, large starting torque, wide speed regulation range, easy control, need maintenance, but easy maintenance (carbon brush replacement), it will generate electromagnetic interference, and has requirements for the environment. Therefore, it can be used in cost-sensitive general industrial and civil applications.
Brushless DC Servo Motor——The motor is small in size, light in weight, large in output, fast in response, high in speed, small in inertia, smooth in rotation and stable in torque. It is easy to realize intelligence, and its electronic commutation method is flexible, which can be square wave commutation or sine wave commutation. The motor is maintenance-free and has no carbon brush loss, high efficiency, low operating temperature, low noise, small electromagnetic radiation, long life, and can be used in various environments.
