This page allows the user to see how transfer functions are formed, using the Forward(s) divided by 1-Loop(s) rule.
You can select one of various systems, and then see how Forward(s), Loop(s) and then the overall Transfer Functions are derived.
Click on the relevant blocks in the diagram to change their parameters.
Here the systems are static, but please click here to see some dynamic systems, such as electronic filters and motors.
Control System O/I ; O/D
Full Control O/I ; O/D
Control+Vel Fb O/I ; O/D
Feedforward O/I ; O/D
General Feedback O/I ; O/D
Pot Divider V/I ; V/IL ; with Load
OpAmp NonInverting
OpAmp Inverting