2.1c Voltage Source

Voltage Source

A voltage source is a circuit component that forces a specific voltage through its terminals. The difference between the positive and negative terminal is always equal to a constant $V_s$. The current through it is determined by the rest of the circuit.

\usepackage{circuitikz}
\begin{document}
\begin{circuitikz}[american voltages]
\node at (0,3.75) {Symbol};

\draw
(0,3) to [V, v=$V_s$, i^>=$I_{elem}$] (0,0);
\end{circuitikz}
\hspace{1cm}
\begin{tikzpicture}[domain=0:4]
\node at (0,2.25) {IV Relationship};
\draw[<->] (-1.5,0)—(1.5,0) node[below]{$V_{elem}$};
\draw[<->] (0,-1.5)—(0,1.5) node[left]{$I_{elem}$};
\draw[<->, color=red] (0.75,1)—(0.75,-1) node[below]{$x=V_s$};
\end{tikzpicture}
\hspace{1cm}
\begin{tikzpicture}
\node at (0,2.25) {$V_{elem}=V_s$};
\node at (0,1.75) {$I_{elem}=?$};
\node at (0,0){};
\end{tikzpicture}
\end{document}

\usepackage{circuitikz}
 
\begin{document}
 
\begin{circuitikz}
    % Op-Amp symbol
    \draw (0,0) node[op amp] (opamp) {};
 
    % Pin connections
    \draw (opamp.+) -- ++(-1,0) node[left] {$V_+$};
    \draw (opamp.-) -- ++(-1,0) node[left] {$V_-$};
    \draw (opamp.out) -- ++(1,0) node[right] {$V_{\text{out}}$};
 
    % Power supply connections
    \draw (opamp.up) -- ++(0,0.5) node[above] {$+V_{cc}$};
    \draw (opamp.down) -- ++(0,-0.5) node[below] {$-V_{cc}$};
\end{circuitikz}
 
\end{document}