Buck-Boost Converter in CircuiTikZ

  • This post is about drawing a dc-dc power converter, known as buck-boost converter, in LaTeX using CircuiTikZ package. It allows the electrical voltage at its output to be greater or less than of its input. Check below for more details!
TikZ Buck Boost Converter circuitikz

Short description

The topology of the Buck-Boost converter is shown above which has the following electrical components:

- a DC input voltage

- a load resistor R, 

- a filter capacitor C,

- an inductor L

- and two complementary switches.

Drawing these elements in LaTeX can be achieved using CircuiTikZ package, built using TikZ/PGF. 

Buck Boost converter CircuiTikZ code

The TikZ code of the buck-boost converter is given below:

\documentclass[border=0.2cm]{standalone}

% Load the package
\usepackage{circuitikz}

\begin{document}

\begin{tikzpicture}[american]

% Change components size
\ctikzset{
	resistors/scale=0.7,
	capacitors/scale=0.7,
	diodes/scale=0.7,
	inductors/coils=6
}

% Draw Voltage and switch
\draw (0,0) to[V,
	invert,
	l=$V_{in}$,
	i_>=$i_s$] ++(0,3) -- ++(1,0) 
node[nigfete,
	rotate=90,
	label=S,
	solderdot,
	anchor=D](switch){};

\draw (switch.E) -- ++(1,0) 
	coordinate(a1);

% Draw Diode
\draw (a1) to[D*,l= D,invert] ++(3,0) 
	coordinate(a2); 

% Draw resistor
\draw (a2) -- ++(1.5,0) 
	to[R,
		l_=R,
		v^>=$\:V_o$,
		i>_=$i_o$] ++(0,-3) -- ++(-1.5,0) coordinate(a3);

% Draw ground
\node[ground] at (a3) {};

% Bottom lines
\draw (a3) -- ++(-3,0) 
	coordinate(a4);
\draw (a4) -- (0,0);

% Draw capacitor
\draw (a3) to[curved capacitor,*-*,l=C] (a2);

% Draw inductor
\draw (a4) to[cute inductor,*-*,i_<=$i_L$] (a1); %

\end{tikzpicture}

\end{document}

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