Open Loop Circuit Diagram. One of the significant difference between the open loop and closed loop control system is that in an open loop system the desired output does not depend on the control action. In open loop feedback systems output is not used as the control variable for the system.
Here as we can see that the system consists of two blocks one is the controller while other is controlled process. One of the significant difference between the open loop and closed loop control system is that in an open loop system the desired output does not depend on the control action. Depending on the achieved input the controller generates the control signal which is fed to the processing unit.
The figure here represents the block diagram of an open loop control system.
While in the closed loop system the desired output depends on the control action of the system. Basically according to the required output an input is provided to the controller of the system. These type of systems doesn t depend upon its output i e. In open loop feedback systems output is not used as the control variable for the system.