Limits in Feedback Systems

A feedback system is shown : the A block's output is limited by the L block, F is in the feedback path.

Move sliders to change values of Input I and Disturbance D and see how Output O changes as a result.

Click on A, L(imit) and F blocks to change their gains, and see how these affect O.

Plot of O vs I shown: When you move slider I, you see where the system is on the graph; when you move the D slider, the graph moves accordingly.

Instead of a slider, the integral of O can set I - making a square wave. See I and O changing on the hysteresis graph.