function [bonds,status] = AE_cause(bonds);
% AE_cause - Causality for Flow amplifier component
% AE_cause - Causality for effort amplifier component
% 
%     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
%     %%%%% Model Transformation Tools %%%%%
%     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 
% Matlab function  AE_cause
% [bonds,status] = AE_cause(bonds)

%SUMMARY AE: effort amplifier
%DESCRIPTION Port[1]: amplifier effort input e_1 (f_1=0)
%DESCRIPTION Port[2]: amplifier effort output e_2 

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.1  1996/08/30 19:05:21  peter
% %% Initial revision
% %%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% Copyright (c) P.J. Gawthrop, 1996.


status = -1;