DC servo motor is the word in the proper noun, that is, as a very special word sex to help to our life, that is, a very good appear CCTV, are very good.

Servo mainly relies on pulse for positioning. Basically, it can be understood that the servo motor receives a pulse and then rotates an angle corresponding to the pulse, thus achieving displacement. Because the servo motor itself has the ability to send out pulses, for every angle the servo motor rotates, it will send out a corresponding number of pulses that correspond to the pulses received by the servo motor, or what is called a closed loop. This way, the system will know how many pulses are sent to the servo motor and how many pulses are received at the same time. This controls the rotation of the motor and thus enables positioning, up to 0.001mm.

DC servo motor specifically refers to DC brushed servo motor - motor is low cost, simple structure, high starting torque, wide range of speed regulation, easy to control, requires maintenance, but easy to maintain (replace carbon brushes), generates electromagnetic interference. Environmental requirements are high. Therefore, it can be used for cost-sensitive general industrial and residential applications.

DC servo motors also include brushless DC servo motors - small size, light weight, large output, fast response, high speed, low inertia, smooth rotation, stable torque, and limited motor power. Easy to achieve intelligence, its electronic phase change is flexible, it can be square wave phase change, or sine wave phase change. The motor is maintenance-free, no carbon brush loss, high efficiency, low working temperature, low noise, low electromagnetic radiation, long life, and can be used in various environments.

The above is about the above knowledge, for the friends who need it all have to understand its principle, only to figure out its principle items, that is, you can do practice and theory combined with each other.