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Circuit Diagrams in TikZ

Draw professional electronic circuit diagrams using CircuiTikZ.

Circuit diagrams use the CircuiTikZ package, which is built on TikZ. Load it with \usepackage{circuitikz}

Basic Setup

\usepackage{circuitikz}

% Optional: set default style
\ctikzset{
  resistors/scale=0.8,
  capacitors/scale=0.8
}

Basic Components

\begin{circuitikz}
  % Resistor
  \draw (0,0) to[R, l=$R_1$] (2,0);

  % Capacitor
  \draw (0,-1) to[C, l=$C_1$] (2,-1);

  % Inductor
  \draw (0,-2) to[L, l=$L_1$] (2,-2);

  % Voltage source
  \draw (0,-3) to[V, l=$V_s$] (2,-3);

  % Current source
  \draw (0,-4) to[I, l=$I_s$] (2,-4);

  % Ground
  \draw (3,0) node[ground] {};
\end{circuitikz}

Simple RC Circuit

\begin{circuitikz}
  \draw (0,0)
    to[V, l=$V_s$] (0,2)       % Voltage source
    to[R, l=$R$] (2,2)         % Resistor
    to[C, l=$C$] (2,0)         % Capacitor
    -- (0,0);                   % Complete the circuit

  % Add ground
  \draw (0,0) node[ground] {};
\end{circuitikz}

Voltage Divider

\begin{circuitikz}
  \draw (0,0)
    to[V, l=$V_{in}$] (0,3)    % Input voltage
    to[short] (2,3)
    to[R, l=$R_1$] (2,1.5)     % R1
    to[R, l=$R_2$] (2,0)       % R2
    to[short] (0,0);

  % Output voltage node
  \draw (2,1.5) to[short, -o] (3,1.5) node[right] {$V_{out}$};

  % Ground
  \draw (1,0) node[ground] {};
\end{circuitikz}

Op-Amp Circuits

\begin{circuitikz}
  % Op-amp symbol
  \draw (3,2) node[op amp] (opamp) {};

  % Input resistor
  \draw (0,2.5) node[left] {$V_{in}$}
    to[R, l=$R_1$] (opamp.-);

  % Feedback resistor
  \draw (opamp.-) -- ++(0,1.5) coordinate (fb)
    to[R, l=$R_f$] (fb -| opamp.out)
    -- (opamp.out);

  % Non-inverting input to ground
  \draw (opamp.+) -- ++(0,-0.5) node[ground] {};

  % Output
  \draw (opamp.out) to[short, -o] ++(0.5,0) node[right] {$V_{out}$};
\end{circuitikz}

Transistor Circuits

\begin{circuitikz}
  % NPN common emitter amplifier
  \draw (2,2) node[npn] (npn) {};

  % Base circuit
  \draw (0,2) node[left] {$V_{in}$}
    to[C, l=$C_1$] (npn.base);

  % Bias resistors
  \draw (npn.base) -- ++(0,1) to[R, l=$R_1$] ++(0,1.5)
    -- ++(1,0) node[vcc] {$V_{CC}$};
  \draw (npn.base) -- ++(0,-1) to[R, l=$R_2$] ++(0,-1.5)
    node[ground] {};

  % Collector resistor
  \draw (npn.collector) to[R, l=$R_C$] ++(0,2)
    node[vcc] {$V_{CC}$};

  % Emitter resistor
  \draw (npn.emitter) to[R, l=$R_E$] ++(0,-1.5)
    node[ground] {};

  % Output
  \draw (npn.collector) to[C, l=$C_2$, -o] ++(2,0)
    node[right] {$V_{out}$};
\end{circuitikz}

Logic Gates

\begin{circuitikz}
  % AND gate
  \draw (0,0) node[and port] (and) {};
  \draw (and.in 1) -- ++(-0.5,0) node[left] {A};
  \draw (and.in 2) -- ++(-0.5,0) node[left] {B};
  \draw (and.out) -- ++(0.5,0) node[right] {A AND B};

  % OR gate
  \draw (0,-2) node[or port] (or) {};
  \draw (or.in 1) -- ++(-0.5,0) node[left] {A};
  \draw (or.in 2) -- ++(-0.5,0) node[left] {B};
  \draw (or.out) -- ++(0.5,0) node[right] {A OR B};

  % NOT gate
  \draw (0,-4) node[not port] (not) {};
  \draw (not.in) -- ++(-0.5,0) node[left] {A};
  \draw (not.out) -- ++(0.5,0) node[right] {NOT A};

  % NAND gate
  \draw (4,0) node[nand port] (nand) {};

  % NOR gate
  \draw (4,-2) node[nor port] (nor) {};

  % XOR gate
  \draw (4,-4) node[xor port] (xor) {};
\end{circuitikz}

Diode Circuits

\begin{circuitikz}
  % Half-wave rectifier
  \draw (0,0)
    to[sV, l=$V_{AC}$] (0,2)
    to[D, l=$D_1$] (2,2)
    to[R, l=$R_L$] (2,0)
    -- (0,0);

  % Full-wave bridge rectifier
  \draw (5,0)
    to[sV, l=$V_{AC}$] (5,2)
    to[short] (6,2)
    to[D] (7,1)
    to[D] (6,0)
    -- (5,0);
  \draw (6,2) to[D] (7,3) to[short] (8,3)
    to[R, l=$R_L$] (8,1)
    to[short] (7,1);
  \draw (7,3) to[D] (6,2);
  \draw (6,0) to[D] (7,-1) -- (8,-1) -- (8,1);
\end{circuitikz}

Component Labels and Values

\begin{circuitikz}
  % Label on left
  \draw (0,0) to[R, l=$R_1$] (2,0);

  % Label on right (underscore after l)
  \draw (0,-1) to[R, l_=$10k\Omega$] (2,-1);

  % Value annotation
  \draw (0,-2) to[R, l=$R_2$, a=$4.7k$] (2,-2);

  % Voltage annotation
  \draw (0,-3) to[R, l=$R_3$, v=$V_R$] (2,-3);

  % Current annotation
  \draw (0,-4) to[R, l=$R_4$, i=$I$] (2,-4);

  % Bipole with everything
  \draw (0,-5) to[R, l=$R_5$, v=$V$, i=$I$] (2,-5);
\end{circuitikz}

555 Timer Circuit

\begin{circuitikz}
  % 555 Timer IC (represented as a box)
  \draw (3,2) node[dipchip, num pins=8, external pins width=0.0,
    hide numbers] (chip) {555};

  % Power connections
  \draw (chip.pin 8) -- ++(0,0.5) node[vcc] {$V_{CC}$};
  \draw (chip.pin 1) -- ++(0,-0.5) node[ground] {};

  % Timing components
  \draw (chip.pin 7) -- ++(-1,0) to[R, l=$R_1$] ++(-1.5,0)
    -- ++(0,1) node[vcc] {$V_{CC}$};
  \draw (chip.pin 6) -- ++(-1,0) to[R, l=$R_2$] ++(0,1.5)
    -- (chip.pin 7 -| 0,0);
  \draw (chip.pin 2) -- ++(-1,0) to[C, l=$C$] ++(0,-1.5)
    node[ground] {};

  % Output
  \draw (chip.pin 3) to[short, -o] ++(1,0) node[right] {Out};
\end{circuitikz}

Common Component Symbols

R - Resistor
C - Capacitor
L - Inductor
D - Diode
V - Voltage source
I - Current source
npn, pnp - Transistors
op amp - Operational amplifier
and port, or port - Logic gates

Next Steps

Continue learning TikZ:

Block Diagrams - System-level diagrams
PGFPlots - Plot data and graphs
Flowcharts - Process diagrams

Circuit Diagrams in TikZ

Draw professional electronic circuit diagrams using CircuiTikZ.

Circuit diagrams use the CircuiTikZ package, which is built on TikZ. Load it with \usepackage{circuitikz}

Basic Setup

\usepackage{circuitikz}

% Optional: set default style
\ctikzset{
  resistors/scale=0.8,
  capacitors/scale=0.8
}

Basic Components

\begin{circuitikz}
  % Resistor
  \draw (0,0) to[R, l=$R_1$] (2,0);

  % Capacitor
  \draw (0,-1) to[C, l=$C_1$] (2,-1);

  % Inductor
  \draw (0,-2) to[L, l=$L_1$] (2,-2);

  % Voltage source
  \draw (0,-3) to[V, l=$V_s$] (2,-3);

  % Current source
  \draw (0,-4) to[I, l=$I_s$] (2,-4);

  % Ground
  \draw (3,0) node[ground] {};
\end{circuitikz}

Simple RC Circuit

\begin{circuitikz}
  \draw (0,0)
    to[V, l=$V_s$] (0,2)       % Voltage source
    to[R, l=$R$] (2,2)         % Resistor
    to[C, l=$C$] (2,0)         % Capacitor
    -- (0,0);                   % Complete the circuit

  % Add ground
  \draw (0,0) node[ground] {};
\end{circuitikz}

Voltage Divider

\begin{circuitikz}
  \draw (0,0)
    to[V, l=$V_{in}$] (0,3)    % Input voltage
    to[short] (2,3)
    to[R, l=$R_1$] (2,1.5)     % R1
    to[R, l=$R_2$] (2,0)       % R2
    to[short] (0,0);

  % Output voltage node
  \draw (2,1.5) to[short, -o] (3,1.5) node[right] {$V_{out}$};

  % Ground
  \draw (1,0) node[ground] {};
\end{circuitikz}

Op-Amp Circuits

\begin{circuitikz}
  % Op-amp symbol
  \draw (3,2) node[op amp] (opamp) {};

  % Input resistor
  \draw (0,2.5) node[left] {$V_{in}$}
    to[R, l=$R_1$] (opamp.-);

  % Feedback resistor
  \draw (opamp.-) -- ++(0,1.5) coordinate (fb)
    to[R, l=$R_f$] (fb -| opamp.out)
    -- (opamp.out);

  % Non-inverting input to ground
  \draw (opamp.+) -- ++(0,-0.5) node[ground] {};

  % Output
  \draw (opamp.out) to[short, -o] ++(0.5,0) node[right] {$V_{out}$};
\end{circuitikz}

Transistor Circuits

\begin{circuitikz}
  % NPN common emitter amplifier
  \draw (2,2) node[npn] (npn) {};

  % Base circuit
  \draw (0,2) node[left] {$V_{in}$}
    to[C, l=$C_1$] (npn.base);

  % Bias resistors
  \draw (npn.base) -- ++(0,1) to[R, l=$R_1$] ++(0,1.5)
    -- ++(1,0) node[vcc] {$V_{CC}$};
  \draw (npn.base) -- ++(0,-1) to[R, l=$R_2$] ++(0,-1.5)
    node[ground] {};

  % Collector resistor
  \draw (npn.collector) to[R, l=$R_C$] ++(0,2)
    node[vcc] {$V_{CC}$};

  % Emitter resistor
  \draw (npn.emitter) to[R, l=$R_E$] ++(0,-1.5)
    node[ground] {};

  % Output
  \draw (npn.collector) to[C, l=$C_2$, -o] ++(2,0)
    node[right] {$V_{out}$};
\end{circuitikz}

Logic Gates

\begin{circuitikz}
  % AND gate
  \draw (0,0) node[and port] (and) {};
  \draw (and.in 1) -- ++(-0.5,0) node[left] {A};
  \draw (and.in 2) -- ++(-0.5,0) node[left] {B};
  \draw (and.out) -- ++(0.5,0) node[right] {A AND B};

  % OR gate
  \draw (0,-2) node[or port] (or) {};
  \draw (or.in 1) -- ++(-0.5,0) node[left] {A};
  \draw (or.in 2) -- ++(-0.5,0) node[left] {B};
  \draw (or.out) -- ++(0.5,0) node[right] {A OR B};

  % NOT gate
  \draw (0,-4) node[not port] (not) {};
  \draw (not.in) -- ++(-0.5,0) node[left] {A};
  \draw (not.out) -- ++(0.5,0) node[right] {NOT A};

  % NAND gate
  \draw (4,0) node[nand port] (nand) {};

  % NOR gate
  \draw (4,-2) node[nor port] (nor) {};

  % XOR gate
  \draw (4,-4) node[xor port] (xor) {};
\end{circuitikz}

Diode Circuits

\begin{circuitikz}
  % Half-wave rectifier
  \draw (0,0)
    to[sV, l=$V_{AC}$] (0,2)
    to[D, l=$D_1$] (2,2)
    to[R, l=$R_L$] (2,0)
    -- (0,0);

  % Full-wave bridge rectifier
  \draw (5,0)
    to[sV, l=$V_{AC}$] (5,2)
    to[short] (6,2)
    to[D] (7,1)
    to[D] (6,0)
    -- (5,0);
  \draw (6,2) to[D] (7,3) to[short] (8,3)
    to[R, l=$R_L$] (8,1)
    to[short] (7,1);
  \draw (7,3) to[D] (6,2);
  \draw (6,0) to[D] (7,-1) -- (8,-1) -- (8,1);
\end{circuitikz}

Component Labels and Values

\begin{circuitikz}
  % Label on left
  \draw (0,0) to[R, l=$R_1$] (2,0);

  % Label on right (underscore after l)
  \draw (0,-1) to[R, l_=$10k\Omega$] (2,-1);

  % Value annotation
  \draw (0,-2) to[R, l=$R_2$, a=$4.7k$] (2,-2);

  % Voltage annotation
  \draw (0,-3) to[R, l=$R_3$, v=$V_R$] (2,-3);

  % Current annotation
  \draw (0,-4) to[R, l=$R_4$, i=$I$] (2,-4);

  % Bipole with everything
  \draw (0,-5) to[R, l=$R_5$, v=$V$, i=$I$] (2,-5);
\end{circuitikz}

555 Timer Circuit

\begin{circuitikz}
  % 555 Timer IC (represented as a box)
  \draw (3,2) node[dipchip, num pins=8, external pins width=0.0,
    hide numbers] (chip) {555};

  % Power connections
  \draw (chip.pin 8) -- ++(0,0.5) node[vcc] {$V_{CC}$};
  \draw (chip.pin 1) -- ++(0,-0.5) node[ground] {};

  % Timing components
  \draw (chip.pin 7) -- ++(-1,0) to[R, l=$R_1$] ++(-1.5,0)
    -- ++(0,1) node[vcc] {$V_{CC}$};
  \draw (chip.pin 6) -- ++(-1,0) to[R, l=$R_2$] ++(0,1.5)
    -- (chip.pin 7 -| 0,0);
  \draw (chip.pin 2) -- ++(-1,0) to[C, l=$C$] ++(0,-1.5)
    node[ground] {};

  % Output
  \draw (chip.pin 3) to[short, -o] ++(1,0) node[right] {Out};
\end{circuitikz}

Common Component Symbols

R - Resistor
C - Capacitor
L - Inductor
D - Diode
V - Voltage source
I - Current source
npn, pnp - Transistors
op amp - Operational amplifier
and port, or port - Logic gates

Next Steps

Continue learning TikZ:

Block Diagrams - System-level diagrams
PGFPlots - Plot data and graphs
Flowcharts - Process diagrams

Learn TikZ

Getting Started

Basic Drawing

Text and Labels

Diagrams

Circuit Diagrams in TikZ

Basic Setup

Basic Components

Simple RC Circuit

Voltage Divider

Op-Amp Circuits

Transistor Circuits

Logic Gates

Diode Circuits

Component Labels and Values

555 Timer Circuit

Common Component Symbols

Next Steps

Circuit Diagrams in TikZ

Basic Setup

Basic Components

Simple RC Circuit

Voltage Divider

Op-Amp Circuits

Transistor Circuits

Logic Gates

Diode Circuits

Component Labels and Values

555 Timer Circuit

Common Component Symbols

Next Steps

Company

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