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diff --git a/sample_notebooks/VidyaSri/CHAPTER07.ipynb b/sample_notebooks/VidyaSri/CHAPTER07.ipynb new file mode 100644 index 00000000..5f7bf237 --- /dev/null +++ b/sample_notebooks/VidyaSri/CHAPTER07.ipynb @@ -0,0 +1,561 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:3dc67beaeaebdd84d2ec4524cdbfb840dc3f84ff2b897336112b72f4746f9690"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "CHAPTER07:BJT FUNDAMENTALS"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E01 : Pg 342"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_1\n",
+ "#clc;\n",
+ "#clear;\n",
+ "#close;\n",
+ "# given data : \n",
+ "#format('v',6);\n",
+ "alfa=0.90;# current gain\n",
+ "ICO=15.;# micro A(reverse saturation currenrt)\n",
+ "IE=4.;# mA(Emitter currenrt)\n",
+ "IC=ICO*10.**-3.+alfa*IE;# mA\n",
+ "IB=IE-IC;# mA\n",
+ "IB=IB*1000.;# micro A\n",
+ "print\"Collector Current(mA)\",IC\n",
+ "print\"Base Current(micro A)\",IB"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Collector Current(mA) 3.615\n",
+ "Base Current(micro A) 385.0\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E02 : Pg 342"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_2\n",
+ "#clc;\n",
+ "#clear;\n",
+ "#close;\n",
+ "# given data : \n",
+ "#format('v',6);\n",
+ "Beta=90.;# unitless\n",
+ "IC=4.;# mA(Collector Current)\n",
+ "alfa=Beta/(1.+Beta);# current gain\n",
+ "IB=IC/Beta;# mA(Base Current)\n",
+ "IE=IC+IB;# mA(Emitter currenrt)\n",
+ "print\"Value of alfa\",alfa\n",
+ "print\"Base Current(micro A)\",IB*1000.\n",
+ "print\"Emmiter Current(mA)\",IE"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Value of alfa 0.989010989011\n",
+ "Base Current(micro A) 44.4444444444\n",
+ "Emmiter Current(mA) 4.04444444444\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E03 : Pg 344"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_3\n",
+ "# given data : \n",
+ "alfa=0.90;# current gain\n",
+ "ICO=15.;# micro A(reverse saturation currenrt)\n",
+ "IB=0.5;# /mA(Base Current)\n",
+ "Beta=alfa/(1.-alfa);# unitless\n",
+ "IC=Beta*IB+(1.+Beta)*ICO/1000.;# mA(Collector Current)\n",
+ "print\"Collector Current(mA)\",IC"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Collector Current(mA) 4.65\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E04 : Pg 345"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_4\n",
+ "# given data : \n",
+ "IB=20.;# /micro A(Base Current)\n",
+ "IC=5.;# mA(Collector Current)\n",
+ "Beta=IC*1000./IB;# unitless\n",
+ "print\"Beta=\",Beta"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Beta= 250.0\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E05 : Pg 346"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_5\n",
+ "# given data : \n",
+ "IB=50.;# /micro A(Base Current)\n",
+ "IC=5.;# mA(Collector Current)\n",
+ "IE=IC+IB/1000.;# mA\n",
+ "Beta=IC*1000./IB;# unitless\n",
+ "alfa=IC/IE;# current gain\n",
+ "print\"Emitter Current(mA)\",IE\n",
+ "print\"\\nBeta=\",Beta\n",
+ "print\"\\nalfa=\",alfa\n",
+ "print\"\\nVerify that alfa=Beta/(Beta+1)\"\n",
+ "print alfa==Beta/(Beta+1);\n",
+ "print\"\\nVerify that Beta=alfa/(1-alfa)\"\n",
+ "print Beta==round(alfa/(1-alfa));"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Emitter Current(mA) 5.05\n",
+ "\n",
+ "Beta= 100.0\n",
+ "\n",
+ "alfa= 0.990099009901\n",
+ "\n",
+ "Verify that alfa=Beta/(Beta+1)\n",
+ "True\n",
+ "\n",
+ "Verify that Beta=alfa/(1-alfa)\n",
+ "True\n"
+ ]
+ }
+ ],
+ "prompt_number": 5
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E06 : Pg 348"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_6\n",
+ "# given data : \n",
+ "IE=10.;# mA\n",
+ "IB=5.;# /mA(Base Current)\n",
+ "IC=IE-IB;# mA(Collector Current)\n",
+ "BetaR=IC/IB;# unitless\n",
+ "alfaR=IC/IE;# current gain\n",
+ "print \"BetaR=\",BetaR\n",
+ "print \"alfaR=\",alfaR\n",
+ "# Answer is wrong in the book."
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "BetaR= 1.0\n",
+ "alfaR= 0.5\n"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E07 : Pg 348"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_7\n",
+ "# given data : \n",
+ "Beta=100.;# unitless\n",
+ "VBE=0.7;# V\n",
+ "VCC=10.;# V\n",
+ "# (a) VE=-0.7;# V\n",
+ "print\"For the circuit in fig(a)\"\n",
+ "VE=-0.7;# V(Constant voltage)\n",
+ "R1=10.;# kohm\n",
+ "R2=10.;# kohm\n",
+ "IE=(VCC+VE)/R2;# mA\n",
+ "IB=IE/(Beta+1.);# mA\n",
+ "VC=VCC-R1*1000.*(IE-IB)/1000.;# V\n",
+ "print\"Constant voltage fo the given transistor, VE(V)\",VE\n",
+ "print\"Emitter current(mA)\",IE\n",
+ "#format('v',5);\n",
+ "IB=IB*1000;# /micro A\n",
+ "print\"Base current(micro A)\",IB\n",
+ "#format('v',6);\n",
+ "print\"VC(V)\",VC\n",
+ "# (b) VE=-0.7;# V\n",
+ "R1=5.;# kohm\n",
+ "R2=5.;# kohm\n",
+ "VEE=-15.;# V\n",
+ "print\"For the circuit in fig(b)\"\n",
+ "VE=-0.7;# V(Constant voltage)\n",
+ "R1=5.;# kohm\n",
+ "R2=5.;# kohm\n",
+ "IE=(VCC+VE)/R2;# mA\n",
+ "IC=IE*Beta/(Beta+1.);# mA\n",
+ "VC=VEE+R2*IC;# V\n",
+ "print\"Constant voltage fo the given transistor, VE(V)\",VE\n",
+ "print\"Emitter current(mA)\",IE\n",
+ "print\"Base current(mA)\",IC\n",
+ "#format('v',5);\n",
+ "print\"VC(V)\",VC"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "For the circuit in fig(a)\n",
+ "Constant voltage fo the given transistor, VE(V) -0.7\n",
+ "Emitter current(mA) 0.93\n",
+ "Base current(micro A) 9.20792079208\n",
+ "VC(V) 0.792079207921\n",
+ "For the circuit in fig(b)\n",
+ "Constant voltage fo the given transistor, VE(V) -0.7\n",
+ "Emitter current(mA) 1.86\n",
+ "Base current(mA) 1.84158415842\n",
+ "VC(V) -5.79207920792\n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E08 : Pg 350"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_8\n",
+ "# given data : \n",
+ "import math \n",
+ "Beta=1.+0j;#math.inf;# Current gain\n",
+ "VBE=0.7;# # V\n",
+ "VB=0;# V(For large Beta)\n",
+ "VE=VB-VBE;# # V\n",
+ "print\"(a) Value of VB(V) : \",VB\n",
+ "print\"(a) Value of VE(V) : \",VE\n",
+ "# Part (b)\n",
+ "R1=5.;# /kohm\n",
+ "R2=5.;# /kohm\n",
+ "VCC=10.;# /V\n",
+ "VEE=-15.;# /V\n",
+ "VE=VBE;# # V\n",
+ "VC=VEE+R1/R2*(VCC-VBE);# V\n",
+ "print\"(b) Value of VE(V) : \",VE\n",
+ "print\"(b) Value of VC(V) : \",VC"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(a) Value of VB(V) : 0\n",
+ "(a) Value of VE(V) : -0.7\n",
+ "(b) Value of VE(V) : 0.7\n",
+ "(b) Value of VC(V) : -5.7\n"
+ ]
+ }
+ ],
+ "prompt_number": 8
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E09 : Pg 351"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_9\n",
+ "# given data :\n",
+ "VEE=5.;# # V\n",
+ "VCC=-5.;# # V\n",
+ "VE=1.;# # V\n",
+ "RB=20.;# kohm\n",
+ "RE=5.;# kohm\n",
+ "RC=5.;# kohm\n",
+ "VBE=0.7;# # V\n",
+ "VB=VE-VBE;# /V\n",
+ "IB=VB/RB;# /mA\n",
+ "IE=(VEE-VE)/RE;# mA\n",
+ "IC=IE-IB;# mA\n",
+ "VC=VCC+IC*RC;# V\n",
+ "Beta=IC/IB;# Current gain\n",
+ "Alfa=IC/IE;# Current gain\n",
+ "print\"VB(V) : \",VB\n",
+ "print\"IB(mA) : \",IB\n",
+ "print\"IE(mA) : \",IE\n",
+ "print\"IC(mA) : \",IC\n",
+ "#format('v',5);\n",
+ "print\"Beta : \",Beta\n",
+ "print\"Alfa : \",Alfa"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "VB(V) : 0.3\n",
+ "IB(mA) : 0.015\n",
+ "IE(mA) : 0.8\n",
+ "IC(mA) : 0.785\n",
+ "Beta : 52.3333333333\n",
+ "Alfa : 0.98125\n"
+ ]
+ }
+ ],
+ "prompt_number": 9
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E10 : Pg 351"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_10\n",
+ "#clc;\n",
+ "#clear;\n",
+ "#close;\n",
+ "#format('v',6);\n",
+ "# given data :\n",
+ "delVB=0.4;# V\n",
+ "delVC=0;# V# No change\n",
+ "delVE=delVB;# V# Same change\n",
+ "print\"delVE(V) : \",delVE\n",
+ "print\"delVC(V) : \",delVC"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "delVE(V) : 0.4\n",
+ "delVC(V) : 0\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E11 : Pg 352"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Ex_7_11\n",
+ "# given data :\n",
+ "VBE=0.7;# # V\n",
+ "Beta=100.;# /Current Gain\n",
+ "# Part (a)\n",
+ "VCC=6.;# # V\n",
+ "VEE=0;# # V\n",
+ "VB=2.;# # V\n",
+ "RE=18.;# kohm\n",
+ "RC=3.;# kohm\n",
+ "VE=VB-VBE;# V\n",
+ "print\"(a) Emitter Voltage(V) : \",VE\n",
+ "IE=1.;# /mA\n",
+ "IC=IE*Beta/(1+Beta);# /mA\n",
+ "VC=VCC-IC*RC;# V\n",
+ "if VC>VE:\n",
+ " print\"Circuit is in active mode.\"\n",
+ "# Part (b)\n",
+ "VEE=6.;# # V\n",
+ "VCC=0;# # V\n",
+ "VB=1.;# # V\n",
+ "RE=10.;# kohm\n",
+ "RC=10.;# kohm\n",
+ "VE=VB+VBE;# V\n",
+ "print\"(b) Emitter Voltage(V) : \",VE\n",
+ "IE=(VEE-VE)/RE;# /mA\n",
+ "IC=IE;# /mA(Assumed nearly equal)\n",
+ "VC=VCC+IC*RC;# V\n",
+ "if VC>VB :\n",
+ " print\"Circuit is in saturation mode.\"\n",
+ "# Part (c)\n",
+ "VEE=9.5;# # V\n",
+ "VCC=-50.;# # V\n",
+ "VB=-5.;# # V\n",
+ "RE=200.;# kohm\n",
+ "RC=20.;# kohm\n",
+ "VE=VB+VBE;# V\n",
+ "print\"(c) Emitter Voltage(V) : \",VE\n",
+ "IE=(VEE-VE)/RE;# /mA;# /mA\n",
+ "IC=IE*Beta/(1+Beta);# /mA\n",
+ "VC=VCC-IC*RC;# V\n",
+ "if VC>VE :\n",
+ " print\"Circuit is in active mode.\"\n",
+ "else :\n",
+ " print\"Circuit is in reverse active mode.\"\n",
+ "# Part (d)\n",
+ "VEE=-30.;# # V\n",
+ "VCC=-10.;# # V\n",
+ "VB=-20.;# # V\n",
+ "RE=6.;# kohm\n",
+ "RC=2.;# kohm\n",
+ "VE=VB-VBE;# V\n",
+ "print\"(d) Emitter Voltage(V) : \",VE\n",
+ "IE=(VEE-VE)/RE;# /mA;# /mA\n",
+ "IC=IE*Beta/(1.+Beta);# /mA\n",
+ "VC=VCC-IC*RC;# V\n",
+ "if VC>VE :\n",
+ " print\"Circuit is in active mode.\"\n",
+ "# Note : Printing error in part (a) in the textbook. Answer is also not accurate in the textbook for part(c)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(a) Emitter Voltage(V) : 1.3\n",
+ "Circuit is in active mode.\n",
+ "(b) Emitter Voltage(V) : 1.7\n",
+ "Circuit is in saturation mode.\n",
+ "(c) Emitter Voltage(V) : -4.3\n",
+ "Circuit is in reverse active mode.\n",
+ "(d) Emitter Voltage(V) : -20.7\n",
+ "Circuit is in active mode.\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
\ No newline at end of file |