From 79c59acc7af08ede23167b8455de4b716f77601f Mon Sep 17 00:00:00 2001 From: hardythe1 Date: Thu, 11 Jun 2015 17:31:11 +0530 Subject: add books --- Electronic_Devices_and_Circuits/Chapter1_1.ipynb | 307 ----------------------- 1 file changed, 307 deletions(-) delete mode 100755 Electronic_Devices_and_Circuits/Chapter1_1.ipynb (limited to 'Electronic_Devices_and_Circuits/Chapter1_1.ipynb') diff --git a/Electronic_Devices_and_Circuits/Chapter1_1.ipynb b/Electronic_Devices_and_Circuits/Chapter1_1.ipynb deleted file mode 100755 index 47b8b5fc..00000000 --- a/Electronic_Devices_and_Circuits/Chapter1_1.ipynb +++ /dev/null @@ -1,307 +0,0 @@ -{ - "metadata": { - "name": "" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Chapter 01 : Basic semiconductor and pn junction theory" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 1.1, Page No 15" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "#initialisation of variables\n", - "Nd=3*10**14\n", - "Na=0.5*10**14 #all in atom/cm**3\n", - "ni=1.5*10**10\n", - "\n", - "#Calculations\n", - "print(\"resultant densities of free electrons and hole\")\n", - "ne=(-(Na-Nd)+(math.sqrt(((Na-Nd)**2)+4*ni**2)))/2\n", - "print(\"Electron densities = %.1f x 10^14 electron/cm**3\" %(ne/(10**14))) #electron densities in electron/cm**3\n", - "Nd>Na\n", - "n=Nd-Na\n", - "print(n)\n", - "p=(ni**2)/n\n", - "\n", - "#Results\n", - "\n", - "print(\"densities of hole is =%.1f X 10^6 dhole/cm3\" %(p/(10**6)))\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "resultant densities of free electrons and hole\n", - "Electron densities = 2.5 x 10^14 electron/cm**3\n", - "2.5e+14\n", - "densities of hole is =0.9 X 10^6 dhole/cm3\n" - ] - } - ], - "prompt_number": 1 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 1.2, Page No 18" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "\n", - "#initialisation of variables\n", - "l=1*10**-3\n", - "E=10\n", - "\n", - "#Calculations\n", - "un=1500*10**-4\n", - "up=500*10-4\n", - "Vn=-(un*E)/l\n", - "\n", - "#Results\n", - "print(\"drift current is =%.2dm/s\\n\" %Vn)\n", - "print(\"drift current of hole\")\n", - "Vp=(up*E)/l\n", - "print(\"drift current is =%.f dm/s\\n\" %(Vp/10**5))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "drift current is =-1500m/s\n", - "\n", - "drift current of hole\n", - "drift current is =500 dm/s\n", - "\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 1.3 Page No 19" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "\n", - "#initialisation of variables\n", - "l=1*10**-3\n", - "a=0.1*10**-4\n", - "ni=1.5*10**10\n", - "p=1.5*10**10\n", - "un=1500\n", - "up=500 #in cm3/V.s\n", - "q=1.6*10**-19\n", - "\n", - "#Calculations\n", - "m=q*((ni*un)+(p*up))*10**6\n", - "print( \"mobility is =%.1fmicro/ohmcm\" %m)\n", - "R=l/(m*a)\n", - "print(\" resistance is =%.1fMohm\" %R)\n", - "\n", - "#for doped material\n", - "n=8*10**13\n", - "p=(ni**2)/n\n", - "m=q*((n*un)+(p*up))\n", - "\n", - "#Results\n", - "print(\"mobility is =%3.4f/ohmcm\" %m)\n", - "R=l/(m*a)\n", - "print(\" resistance is %.2f Kohm\" %(R/1000))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "mobility is =4.8micro/ohmcm\n", - " resistance is =20.8Mohm\n", - "mobility is =0.0192/ohmcm\n", - " resistance is 5.21 Kohm\n" - ] - } - ], - "prompt_number": 3 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 1.4, Page No 25" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "#initialisation of variables\n", - "T1=25.0\n", - "T2=35.0\n", - "T3=45.0\n", - "I0=30.0 # nA\n", - "print(\"I0(35)=I0*2**(T2-T1)/10\")\n", - "#on solving\n", - "I035=I0*2**((T2-T1)/10)\n", - "print(\"Current at 35c is =%.2f nA\\n\" %I035)\n", - "print(\"I0(45)=I0*2**(T3-T1)/10\")\n", - "#on solving\n", - "I045=30*2**2\n", - "print(\"current at 45c is =%.2f nA\\n\" %I045)\n", - "I_CS=100.0 \n", - "V_CC=200.0 \n", - "t_on=40*10**-6" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "I0(35)=I0*2**(T2-T1)/10\n", - "Current at 35c is =60.00 nA\n", - "\n", - "I0(45)=I0*2**(T3-T1)/10\n", - "current at 45c is =120.00 nA\n", - "\n" - ] - } - ], - "prompt_number": 4 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 1.5, Page No 28" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "#initialisation of variables\n", - "I0=30\n", - "Vd=0.7\n", - "n=2\n", - "\n", - "#Calculations\n", - "Vt=26.0*10**-3\n", - "k=Vd/(n*Vt)\n", - "Id=I0*((2.7**k)-1)*10**-6 #Junction current\n", - "print(\" a) Forward bais current is =%.2f mA\\n\" %Id)\n", - "Vd=-10 #reverse bais\n", - "k=Vd/(n*Vt)\n", - "Id=I0*((2.7**k)-1)\n", - "\n", - "#Results\n", - "print(\" b) Forward bais current is =%.2f nA\" %Id)" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - " a) Forward bais current is =19.23 mA\n", - "\n", - " b) Forward bais current is =-30.00 nA\n" - ] - } - ], - "prompt_number": 5 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 1.6, Page No 29" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "#initialisation of variables\n", - "Id=.1*10**-3\n", - "n=2\n", - "vt=26*10**-3\n", - "I0=30*10**-9\n", - "\n", - "#Calculations\n", - "Vd=(n*Vt)*math.log(Id/I0)*10**3\n", - "print(\" a) Forward bais current is =%.2f mV\\n\" %Vd)\n", - "Id=10*10**-3\n", - "Vd=(n*Vt)*math.log(Id/I0)*10**3\n", - "\n", - "#Results\n", - "print(\"b) forward bais current is %dmV\\n\" %Vd)" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - " a) Forward bais current is =421.81 mV\n", - "\n", - "b) forward bais current is 661mV\n", - "\n" - ] - } - ], - "prompt_number": 6 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit