Transfer function block diagram

About this transfer function block diagram

This diagram shows a simple transfer function block diagram, which is applied in different engineering for controlling the processes.

The system consists of several key components, the summing point it provides the addition between the input signal, the product of the feedback signal, and Y(s) and yields the error signal E(s). The error signal is defined as the ideal output – the actual output, is R(s) - Y(s).

Forward Transfer Function (G(s)) indicates a flow that characterizes the process of control being administered. It maps the input signal, E(s) to the output signal, Y(s). G(s) is commonly a mathematical formula that represents the system response in the Laplace domain.

Feedback Transfer Function (H(s)) constitutes the feedback path that integrates the output signal Y(s) and then ‘feeds back’ to the summing point. The actual feedback is then produced by multiplying this signal by H(s) to yield (H(s).Y(s)) which is the feedback term.

Take-Off point is the point where the output signal, and is termed as Y(s) is taken and is returned to the summation point through the feedback loop. The feedback control system utilizes the error signal (E(s)) which was generated in the feedback path to modify the input signals R(s) so that the output of the system differs from the desired output by as little as possible.