% Author: Dr. Matthias Jung, DL9MJ
% Year: 2020
\begin{circuitikz}[european]
    \draw(0,0) coordinate(u0)
        to [short, o-*] ++(2,0) coordinate(u1)
        to [short,  -o] ++(8,0) coordinate(u2){}
        node[anchor=west](){\qty{0}{\volt}};
    \draw(u0)
        ++(0,-1) coordinate(gg1);
    \draw(u0)
        to [open, straight voltages, v_<={$U_\mathrm{E}$}] ++(0,4)
        node[anchor=south](){E}
        to [short, o-*] ++(2,0) coordinate(m1)
        to [R] ++(4,0)
        node[npn, tr circle, anchor=B](trans){};
    \draw(trans.E)
        to [short,-*] (trans.E|-u1)
        node[rground](){};
    \draw(trans.C)
        to [short,*-o] (trans.C-|u2) coordinate(m2);
    \draw(trans.C)
        to [R, -*] ++(0,4) coordinate(o1)
        to [short, -o] (o1-|u2)
        node[anchor=west](){+\qty{10}{\volt}};
    \draw(o1) 
        to [short] (o1-|m1)
        to [C] ++(0,-2)
        node[rground](){};
    \draw(u2)
        to [open, straight voltages, v<={$U_\mathrm{A}$}] (m2);
    \draw(u1)
        to [R] (m1);

    \begin{axis}[%
        at={(gg1)},
        anchor={north west},
        /pgf/number format/1000 sep={ },
        /pgf/number format/use comma,        
        axis lines=middle,
        axis line style={-Triangle},
        ytick={0,0.8},
        every major tick/.append style={thick, black},
        yticklabels={0,{0,6}~V},
        grid=major,
        grid style={line width=.1pt, draw=gray!10},
        major grid style={line width=.2pt,draw=gray!50},
        xticklabel=\empty,
        xtick style={draw=none},
        xmin=0,
        xmax=4.2*pi,
        ymin=-1.3,
        ymax=1.7,
        xmajorgrids=false,
        xlabel style={at={(ticklabel* cs:1)},anchor=north east},
        ylabel style={at={(ticklabel* cs:1)},anchor=north west},
        ylabel={$U_\mathrm{E}$},
        xlabel={$t$},
        width=\linewidth*\getDarcImageFactor,
        height=2cm,
        scale only axis,
    ]
        \addplot[samples=500,domain=0:4.0*pi,smooth,black] {sin(deg(x))}; 
    \end{axis}
\end{circuitikz}