"Feedback is a process in which information about the past or the present influences the same phenomenon in the present or future"
I find the idea of feedback quite fascinating and i could realize how universal it is ( applying not only to EE but to society, biological systems,etc ).
But for now, i'm focused on EE.
I'm interested in trying to capture all kinds of feedback used in electronical circuits ( of whatever kind, whether digital or analog ), so that i have the ability of looking a feedback in any electronical circuit and know which task its implementing there.
So far i got three different kinds of feedback.
1 - Positive feedback that tries to reinforce the value of the input as time passes. It is used in any circuit that implements hystheresis, in multivibrators, oscilators, etc ...
2 - Negative feedback that tries to drive the output value to desired/reference values. It is used in any control system.
3 - The kind of feedback used in sequential circuits, which acts as a way of the combinational circuit and the inputs to make the states evolve.
Now i'm curous ... My question is :
Are there more kinds of feedback other than those 3 being used in EE circuits or these three kinds would cover all kinds of feedback used in EE circuits ?
Thanks a lot in advance