Garner_oscillator.svg

Summary

Description
English: A simple oscillator that produces a square wave to the bulb at the emitter of the PNP transistor.
Date
Source This oscillator was first proposed by Lou Garner .
Author Krishnavedala
SVG development
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The SVG code is valid .
This vector image was created with LaTeX , converted to SVG using dvisvgm
Source code
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LaTeX code

Source code 
\documentclass[12pt,border=1pt,crop,multi=false,tikz,class=scrartcl]{standalone}
\usepackage{setspace}
\usepackage{circuitikz}
\usetikzlibrary{arrows,shapes,calc,positioning,fit,decorations.markings,intersections}

\def\CalcC#1{%
	\coordinate (base) at (#1.B);
	\coordinate (collector) at (#1.C);
	\coordinate (emitter) at (#1.E);
	\draw (barycentric cs:base=0.32,collector=0.5,emitter=0.5) circle [radius=18pt];
}

\begin{document}
\begin{circuitikz}[scale=.75]
	\draw
	(0,0) coordinate (o) to [short,*-*] ++(1.5,0) coordinate (o2) to ++(1,0)
	node[npn, anchor=B] (q1) {} ++(1.75,.5) node [] {\scriptsize npn}
	(q1.C) to [short,*-] ++(1.5,0) node [pnp, anchor=B] (q2) {} ++(.5,.8) node [] {\scriptsize pnp}
	(q1.C) to [R] ++(0,2.5) coordinate(v0) -| (q2.E)
	(v0) to [short,*-o] ++(0,1) node[above] {$V_0$}
	(o) to [R] (o |- v0) to [short] (v0)
	(q1.E) to [short,-*] ++(0,-2.5) coordinate (g)
	(o) to [R] (o |- g) -- (g) node [ground]{}
	(q2.C) to [short,-*] ++(0,-1.5) coordinate (b) to [bulb] (q2.C |- g) -- (g)
	(o2) -- (o2 |- b) -- ++(1,0) to [cC] (b)
	;
    \CalcC{q1}
	\CalcC{q2}
\end{circuitikz}
\end{document}

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication .
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Captions

A simple oscillator that produces a square wave to the bulb at the emitter of the PNP transistor.

Items portrayed in this file

depicts

inception

3 May 2020