% Dynamic inverse-$\varGamma$-equivalent circuit for an induction machine
% Author: Erno Pentzin (2013)
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{arrows.meta}
%%%<
\usepackage{verbatim}
%\usepackage[active,tightpage]{preview}
%\PreviewEnvironment{tikzpicture}
%\setlength\PreviewBorder{10pt}%
%%%>
\begin{comment}
:Title: da-wandler mit leiternetzwerk 
:Tags: Electrical engineering;circuitikz
:Author: giedy
:Slug: ganzeFamilieSchafft
\end{comment}
\usepackage[european]{circuitikz}
\begin{document}

%\import{/home/micha/Downloads/circuitikz/tex/generic/circuitikz/pgfcirc.defines.tex}
%\import{/home/micha/Downloads/circuitikz/tex/generic/circuitikz/pgfcirctripoles.tex}


\begin{circuitikz}
%  \draw[help lines] (0,0) grid (8,6);
  \foreach \x in {0,...,10} \draw (\x,-1) node {\x};
  \foreach \x in {0,...,10} \draw (-1,\x) node {\x};


  % op

  \draw(10,2) node[en amp] (op) {};





  

  % uref
  \draw(0,3) to[V_<=\large{16V}, l^=\large{$U_{ref}$}] (0,5);
 
  % Switches
  %\draw (4,1) node[spdt,xscale=-1, yscale=1, anchor=in] (z0) {};
  %\draw (z0.in) node[anchor=south] {z0};
  %leiterwiderstaende
  %\draw (z0.in) to[R=$2\cdot R_0$, a=2$k\Omega$] (6,1)
  %to[short] (7,1) to [R=$R_0$, a=1$k\Omega$] (7,3);
  %an potentiale anhaengen 
  %\draw (z0.out 1) node[anchor=south west] {\tiny{+16V}};
  %\draw (z0.out 2) node[anchor=north west] {\tiny{0V}};
  
  

  
  %alle schalterausgaenge nr. 1 verbinden
  %\draw (z0.out 1) -| (1.5,2);
  %\draw (z1.out 1) -| (1.5,2);
  %\draw (z2.out 1) -| (1.5,2);
  %\draw (z3.out 1) -| (1.5,2);
  % mit u_ref verbinden
  %\draw (z3.out 1) -| (0,5);

  
  %alle schalterausgaenge nr. 2 verbinden
  %\draw (z0.out 2) -| (2.5,2);
  %\draw (z1.out 2) -| (2.5,2);
  %\draw (z2.out 2) -| (2.5,2);
  %\draw (z3.out 2) -| (2.5,2);
  % mit 0V verbinden
  %\draw (z0.out 2) -| (0,3);
  % ground-ref anhaengen
  %\draw (2.5,0) node[rground]{} to [short,-*] (2.5,0.68);

  % ausgang
  \draw(7,1) to[short,-o] (8,1){};
  \draw(8.5,0.5) node[]{\Large{$U_a$}};
  \draw[-{Triangle[scale=2.5, length=2, width=2]}](8,0.8) -- (8,0.2);
%  \draw(8,-0.2) to[short,->] (8,-0.8);
  \draw (8,0) to[short,o-] (8,-0.2) node[rground]{};
  
\end{circuitikz}

\end{document}