From 92cca121f959c6616e3da431c1e2d23c4fa5e886 Mon Sep 17 00:00:00 2001 From: hardythe1 Date: Tue, 7 Apr 2015 15:58:05 +0530 Subject: added books --- Electronic_Devices_and_Circuits/Chapter20.ipynb | 434 ++++++++++++++++++++++++ 1 file changed, 434 insertions(+) create mode 100755 Electronic_Devices_and_Circuits/Chapter20.ipynb (limited to 'Electronic_Devices_and_Circuits/Chapter20.ipynb') diff --git a/Electronic_Devices_and_Circuits/Chapter20.ipynb b/Electronic_Devices_and_Circuits/Chapter20.ipynb new file mode 100755 index 00000000..dcf6cb7f --- /dev/null +++ b/Electronic_Devices_and_Circuits/Chapter20.ipynb @@ -0,0 +1,434 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 20 : Thyristors " + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.1, Page No 902" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "Vs=25.0\n", + "Vtm=1.7\n", + "Rl=25.0\n", + "Ih=5*10**-3\n", + "\n", + "#Calculations\n", + "Vspk=1.414*Vs\n", + "Ilpk=(Vs-Vtm)/Rl\n", + "print(\" for half wave rectifier sinusodial waveform\")\n", + "Ilrms=.5*Ilpk\n", + "es=Vtm+(Ih*Rl)\n", + "\n", + "#Results\n", + "print(\" switch-off voltage =%.2f v\" %es)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " for half wave rectifier sinusodial waveform\n", + " switch-off voltage =1.82 v\n" + ] + } + ], + "prompt_number": 15 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.2, Page No 905" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "Vs=30.0\n", + "Vd1=.7\n", + "Vg=.8\n", + "Ig=200*10**-6\n", + "\n", + "#Calculations\n", + "Vspk=1.414*Vs\n", + "print(\" at 5 degree\")\n", + "es=Vspk*.087 # sin5=.087\n", + "print(\" at 90 degree\")\n", + "es=Vspk\n", + "Vt=Vd1+Vg\n", + "print(\" to trigger at es=3.7V the R2 moving contact is at the top\")\n", + "es=3.7\n", + "Vr1=es-Vt\n", + "I1=1*10**-3\n", + "R1=Vr1/I1\n", + "R=Vt/I1 #R=R2+R3\n", + "es=42.4\n", + "Vr3=Vt\n", + "I1=es/(R+R1)\n", + "R3=Vt/I1\n", + "R2=R-R3\n", + "\n", + "#Results\n", + "print(\" To trigger at es =42.4 the R2 moving contact at the bottom =%.2f\" %R2)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " at 5 degree\n", + " at 90 degree\n", + " to trigger at es=3.7V the R2 moving contact is at the top\n", + " To trigger at es =42.4 the R2 moving contact at the bottom =1369.10\n" + ] + } + ], + "prompt_number": 16 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.3 Page No 906" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "R1=2.2*10**3\n", + "R2=1.5*10**3\n", + "R3=120.0\n", + "Vt=1.5\n", + "\n", + "#Calculations\n", + "Vak1=Vt*((R1+R2+R3)/(R3+.5*R2))\n", + "Vak2=Vt*((R1+R2+R3)/R3)\n", + "\n", + "\n", + "#Results\n", + "print(\" with R2 contact at center = %.2f\" %Vak1)\n", + "print(\" with R2 contact at zero = %.2f\" %Vak2)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " with R2 contact at center = 6.59\n", + " with R2 contact at zero = 47.75\n" + ] + } + ], + "prompt_number": 17 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.4, Page No 911" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "Vs=5.0\n", + "Ilmax=300*10**-3\n", + "Vl=7.0\n", + "Vg=0.8\n", + "\n", + "\n", + "#Calculations\n", + "Vz=Vl-Vg\n", + "print(\" for D1, select a 1N753 with Vz=6.2\")\n", + "Izmin=1*10**-3\n", + "R1=Vg/Izmin\n", + "\n", + "\n", + "#Results\n", + "print(\"The value of R1 is %d kohm \" %R1)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " for D1, select a 1N753 with Vz=6.2\n", + "The value of R1 is 800 kohm \n" + ] + } + ], + "prompt_number": 18 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.5 Page No 911" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "R1=25*10**3\n", + "R2=2.7*10**3\n", + "C1=3*10**-6\n", + "Vg=0.8\n", + "Vd1=8.0\n", + "Vs=115.0\n", + "f=60.0\n", + "\n", + "#Calculations\n", + "Vc1=Vd1+Vg\n", + "#assume the average charging voltage is\n", + "Vac=1.414*Vs\n", + "E=.636*Vac\n", + "#average charging\n", + "Ic=E/(R1+R2)\n", + "#charging time\n", + "t=(C1*Vc1)/Ic\n", + "T=1/f\n", + "q=(t*360)/T\n", + "a=180-q\n", + "\n", + "#Results\n", + "print(\"Conduction angle =%.2f degrees\" %a)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Conduction angle =27.27 degrees\n" + ] + } + ], + "prompt_number": 19 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.6 Page No 925" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "Vs=10.0\n", + "Vf=1.7\n", + "Is=500*10**-6\n", + "Ih=1.5*10**-3\n", + "E=30.0\n", + "\n", + "#Calculations\n", + "R=27*10**3\n", + "C=0.5*10**-6\n", + "R1max=(E-Vs)/Is\n", + "R1min=(E-Vf)/Ih\n", + "t=C*R*math.log((E-Vf)/(E-Vs))\n", + "\n", + "\n", + "#Results\n", + "print(\"Capacitor charging time is %3.4f s\" %t)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Capacitor charging time is 0.0047 s\n" + ] + } + ], + "prompt_number": 20 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.7, Page No 931" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "Rbb=4.0*10**3\n", + "Pd25=360.0*10**-3\n", + "D=2.4*10**-3\n", + "T2=100.0\n", + "\n", + "#Calculations\n", + "Pd=Pd25-D*(T2-25)\n", + "Vb1b1=math.sqrt(Rbb*Pd)\n", + "\n", + "#Results\n", + "print(\"Maximum Vb1b1 that should be used at a temp 100 is %3.1fV \" %Vb1b1)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Maximum Vb1b1 that should be used at a temp 100 is 26.8V \n" + ] + } + ], + "prompt_number": 21 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.8 Page No 931" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math \n", + "\n", + "#initialisation of variables\n", + "Vb1b1=25\n", + "nmax=0.86\n", + "nmin=0.74\n", + "Vd=0.7\n", + "\n", + "#Calculations\n", + "Vpmax=Vd+(nmax*Vb1b1)\n", + "Vpmin=Vd+(nmin*Vb1b1)\n", + "\n", + "#Results\n", + "print(\"Maximum Vpmax that should be is %3.1fV \" %Vpmax)\n", + "print(\"Minimum Vpmin that should be is %3.1fV \" %Vpmin)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Maximum Vpmax that should be is 22.2V \n", + "Minimum Vpmin that should be is 19.2V \n" + ] + } + ], + "prompt_number": 22 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.9 Page No 933" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "Ip=.6*10**-6\n", + "Iv=2*10**-3\n", + "Veb1=2.5\n", + "Vpmin=19.2\n", + "Vpmax=22.2\n", + "Vbb=25.0\n", + "C=1*10**-6\n", + "R=18*10**3\n", + "Vp=20.0\n", + "\n", + "\n", + "#Calculations\n", + "Vpmin=(Vbb-Vpmax)/Ip\n", + "Remax=(Vbb-Veb1)/Iv\n", + "t=C*R*math.log((Vbb-Veb1)/(Vbb-Vp))\n", + "f=1.0/t\n", + "\n", + "#Results\n", + "print(\"The value of f is %.2f \" %f)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of f is 36.94 \n" + ] + } + ], + "prompt_number": 23 + } + ], + "metadata": {} + } + ] +} \ No newline at end of file -- cgit