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unitfeedback

PURPOSE ^

%unitfeedback(sys1)

SYNOPSIS ^

function out = unitfeedback(sys)

DESCRIPTION ^

%unitfeedback(sys1)
%
% Creates the System Sys2(s)  from the system Sys1(s)
% when we have a negative feedback. 
%               ____________
%     +   e    |            |         
% u --->0----->|   Sys1(s)  |------------> y
%       ^-     |____________|      |
%       |                          |
%       |                          |
%       |                          |
%       --------------<-------------
%
% and Returns :
%            Y(s)             Sys1(s)
% Sys2(s)=  ------  =  -------------------
%            U(s)         1   +    Sys1(s)
%
%
% the feedback is negative.
%               ____________
%              |            |         
% u ---------->|   Sys2(s)  |------------> y
%              |____________|      
%
% This only works for SISO systems.

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:
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