Servo system, also known as servo system, is a feedback control system used to accurately follow or reproduce a process. A servo system is an automatic control system that allows the output controlled variables of an object's position, orientation, state, etc. to follow any changes in the input target (or given value). The servo system consists of a control module, sensors, and servo motors; Sensors include encoders and current sensors. The current sensor assists the encoder in position detection and plays a very important role. The selection of the current sensor directly affects the performance of the servo system. The servo system has high requirements for signal ripple, and users have different requirements for ripple. Suitable RC circuits need to be matched to meet the ripple requirements, while considering the bandwidth requirements of users.

Article source: Servo System (Automatic Control System) _ Baidu Baike (baidu. com)