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diff --git a/Fundamental_of_Electronics_Devices/Ch5.ipynb b/Fundamental_of_Electronics_Devices/Ch5.ipynb new file mode 100644 index 00000000..49984e90 --- /dev/null +++ b/Fundamental_of_Electronics_Devices/Ch5.ipynb @@ -0,0 +1,169 @@ +{
+ "metadata": {
+ "name": "El5"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 5: Junction Properties (Continued)"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 3,
+ "metadata": {},
+ "source": [
+ "Example 5.1 Page No 191"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Exa 5.1\n",
+ "#Estimate the junction width in two cases.\n",
+ "\n",
+ "#given data\n",
+ "import math\n",
+ "ND=10**17 #in atoms/cm**3\n",
+ "NA=0.5*10**16 #in atoms/cm**3\n",
+ "Vo=0.7 #in Volts\n",
+ "V=-10.0 #in Volts\n",
+ "ND=ND*10**6 #in atoms/m**3\n",
+ "NA=NA*10**6 #in atoms/m**3\n",
+ "epsilon=8.85*10**-11 #in F/m\n",
+ "e=1.6*10**-19 #coulamb\n",
+ "\n",
+ "#Calculation\n",
+ "#part (i)\n",
+ "#print \"When no external voltage is applied i.e. V=0\"\n",
+ "#print\"VB = 0.7 volts\"\n",
+ "VB=0.7 #in Volts\n",
+ "W1=math.sqrt(2*epsilon*VB*(1/NA+1/ND)/e) #in m\n",
+ "\n",
+ "#part (ii)\n",
+ "#print\"When external voltage of -10 volt is applied\"\n",
+ "#print\"VB = Vo-V volts\"\n",
+ "VB=Vo-V #in Volts\n",
+ "W2=math.sqrt(2*epsilon*VB*(1/NA+1/ND)/e) #in m\n",
+ "\n",
+ "#result\n",
+ "print \"When no external voltage is applied, Junction width is \",round(W1,8),\"m\"\n",
+ "print\"When external voltage of -10 Volt is applied, Junction width is \",round(W2,7),\"m\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "When no external voltage is applied, Junction width is 3.9e-07 m\n",
+ "When external voltage of -10 Volt is applied, Junction width is 1.5e-06 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 3,
+ "metadata": {},
+ "source": [
+ "Example 5.3 Page No 195"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Exa 5.3\n",
+ "#Determine the junction capacitance\n",
+ "\n",
+ "#given data\n",
+ "CTzero=50 #in pF\n",
+ "VR=8 #in Volt\n",
+ "VK=0.7 #in Volt\n",
+ "n=1/3.0 #for Si\n",
+ "\n",
+ "#calculation\n",
+ "CT=CTzero/((1+VR/VK)**n) #in pF\n",
+ "\n",
+ "#result\n",
+ "print\"Junction capacitance is\",round(CT,2),\"pF\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Junction capacitance is 21.59 pF\n"
+ ]
+ }
+ ],
+ "prompt_number": 17
+ },
+ {
+ "cell_type": "heading",
+ "level": 3,
+ "metadata": {},
+ "source": [
+ "Example 5.4 Page No.196"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Example 5.4\n",
+ "#Determine the tuning range of the circuit\n",
+ "\n",
+ "#Given\n",
+ "L=12.5*10**-3 #mH inductance\n",
+ "C1=4.0 #pF Capacitance\n",
+ "C2=40.0 #pF Capacitance\n",
+ "\n",
+ "#Calculation\n",
+ "Ctmin=(C1*C1)/(C1+C1) #Min value of total Capacitance\n",
+ "Ctmax=(C2*C2)/(C2+C2) #Max value of total Capacitance\n",
+ "Fmax=1/(2*math.pi*math.sqrt(L*Ctmin*10**-12))\n",
+ "Fmin=1/(2*math.pi*math.sqrt(L*Ctmax*10**-12))\n",
+ "\n",
+ "#result\n",
+ "print\"The tuning range of circuit lies between\",round(Fmin/1000,2),\"khz and\",round(Fmax/1000,0),\"Mhz\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The tuning range of circuit lies between 318.31 khz and 1007.0 Mhz\n"
+ ]
+ }
+ ],
+ "prompt_number": 22
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [],
+ "language": "python",
+ "metadata": {},
+ "outputs": []
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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