Then we can define the main characteristics of Closed-loop Control as being:
Whilst a good closed-loop system can have many advantages over an open-loop control system, its main disadvantage is that in order to provide the required amount of control, a closed-loop system must be more complex by having one or more feedback paths. Also, if the gain of the controller is too sensitive to changes in its input commands or signals it can become unstable and start to oscillate as the controller tries to over-correct itself, and eventually something would break. So we need to “tell” the system how we want it to behave within some pre-defined limits.
Summing Point Types
Typical Closed-loop System Representation
Motor Controller Circuit
Explore Courses for Electrical Engineering (EE) exam