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Diffstat (limited to 'Electronic_Devices_and_Circuits/Chapter2_1.ipynb')
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diff --git a/Electronic_Devices_and_Circuits/Chapter2_1.ipynb b/Electronic_Devices_and_Circuits/Chapter2_1.ipynb new file mode 100755 index 00000000..1c97e28b --- /dev/null +++ b/Electronic_Devices_and_Circuits/Chapter2_1.ipynb @@ -0,0 +1,571 @@ +{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 02 : Semiconductor diodes"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.1, Page No 37"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "If=100*10**-3\n",
+ "Vf=.75 #given\n",
+ "print(\"a)\")\n",
+ "print(\"forward resistance\")\n",
+ "\n",
+ "#Calculations\n",
+ "Rf=Vf/If\n",
+ "print(\"forward resistnace is %3.1fohm \" %Rf)\n",
+ "print(\"b)\")\n",
+ "Vr=50\n",
+ "Ir=100*10**-9\n",
+ "Rr=(Vr/Ir)\n",
+ "\n",
+ "#Results\n",
+ "print(\"reverse resistnace is %.1fohm \" %(Rr/10**6))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "a)\n",
+ "forward resistance\n",
+ "forward resistnace is 7.5ohm \n",
+ "b)\n",
+ "reverse resistnace is 500.0ohm \n"
+ ]
+ }
+ ],
+ "prompt_number": 14
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.2, Page No 39"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "If=70*10**-3\n",
+ "\n",
+ "#Calculations\n",
+ "rd=(26*10**-3)/If\n",
+ "print(\"dynamic resistance is %.2fohm \" %rd)\n",
+ "If=60*10**-3\n",
+ "Vf=.025\n",
+ "rd=Vf/If\n",
+ "\n",
+ "#Results\n",
+ "print(\"dynamic resistance is %.2fohm \" %rd)\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "dynamic resistance is 0.37ohm \n",
+ "dynamic resistance is 0.42ohm \n"
+ ]
+ }
+ ],
+ "prompt_number": 15
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.3 Page No 40"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "R1=4.7*10**3\n",
+ "E=15.0\n",
+ "Vf=0.7\n",
+ "\n",
+ "#Calculations\n",
+ "print(\"diode current is E=If*R1+Vf\")\n",
+ "If=((E-Vf)/R1)*10**3\n",
+ "\n",
+ "#Results\n",
+ "print(\" diode current is %.2fmA \" %If) "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "diode current is E=If*R1+Vf\n",
+ " diode current is 3.04mA \n"
+ ]
+ }
+ ],
+ "prompt_number": 16
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.5, Page No 41"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "E=1.5\n",
+ "Vf=0.7\n",
+ "R1=10\n",
+ "rd=.25\n",
+ "\n",
+ "#Calculations\n",
+ "print(\"a)\")\n",
+ "If=(E-Vf)/R1\n",
+ "print(\" forward current is %0.1fmA \" %(If*1000))\n",
+ "print(\"b)\")\n",
+ "If=(E-Vf)/(R1+rd)\n",
+ "\n",
+ "#Results\n",
+ "print(\" forward current is %0.1fmA \" %(If*1000))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "a)\n",
+ " forward current is 80.0mA \n",
+ "b)\n",
+ " forward current is 78.0mA \n"
+ ]
+ }
+ ],
+ "prompt_number": 17
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.6 Page No 43"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "If=0\n",
+ "Vf=5.0\n",
+ "R1=100.0\n",
+ "\n",
+ "#Calculations\n",
+ "E=(If*R1)+Vf\n",
+ "print(\"B)\")\n",
+ "Vf=0\n",
+ "E=5.0\n",
+ "R1=100.0\n",
+ "If=(E/R1)*1000\n",
+ "\n",
+ "#Results\n",
+ "print(\"resistance is %dmA \" %If) "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "B)\n",
+ "resistance is 50mA \n"
+ ]
+ }
+ ],
+ "prompt_number": 18
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.8 Page No 45"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "If=50*10**-3\n",
+ "Vf=1.1\n",
+ "R1=100.0\n",
+ "\n",
+ "#Calculations\n",
+ "Vf1=If*R1\n",
+ "E=Vf1+Vf\n",
+ "\n",
+ "#Results\n",
+ "print(\" new supply voltage is %.2fV \" %E)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " new supply voltage is 6.10V \n"
+ ]
+ }
+ ],
+ "prompt_number": 19
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.9, Page No 48"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "P1=700.0*10**-3\n",
+ "Vf=0.7\n",
+ "\n",
+ "#Calculations\n",
+ "If=P1/Vf\n",
+ "#at 65C\n",
+ "D=5*10**-3\n",
+ "T=65-25\n",
+ "P2=P1-D*T\n",
+ "If=P2/Vf\n",
+ "\n",
+ "#Results\n",
+ "print( \"maximum forward current at 65C is %.1fA \" %(If*1000))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "maximum forward current at 65C is 714.3A \n"
+ ]
+ }
+ ],
+ "prompt_number": 20
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.10 Page No 49"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "\n",
+ "Vf1=0.7\n",
+ "Vf=-1.8*10**-3\n",
+ "If=26.0*10**-3\n",
+ "T=100-25\n",
+ "\n",
+ "#Calculations\n",
+ "Vf2=Vf1+(T*Vf)\n",
+ "print(\" voltage at 100C is %.3f V \" %Vf2)\n",
+ "print(\"At 25C\")\n",
+ "T1=25.0\n",
+ "rd=(26*10**-3/If)*((T1+273)/298)\n",
+ "print(\" resistance at 25 C is %.2f ohm \" %rd)\n",
+ "print(\" At 100C\")\n",
+ "T2=100.0\n",
+ "rd=(26*10**-3/If)*((T2+273)/298)\n",
+ "\n",
+ "#Results\n",
+ "print(\" resistance at 100 C is %.2fohm \" %rd)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " voltage at 100C is 0.565 V \n",
+ "At 25C\n",
+ " resistance at 25 C is 1.00 ohm \n",
+ " At 100C\n",
+ " resistance at 100 C is 1.25ohm \n"
+ ]
+ }
+ ],
+ "prompt_number": 21
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.11 Page No 51"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variablesV_s=230\n",
+ "If=10*10**-3\n",
+ "Vf=0.7\n",
+ "\n",
+ "#Calculations\n",
+ "t=70.0*10**-9\n",
+ "Cd=((t*If)/Vf)*10**9\n",
+ "\n",
+ "#Results\n",
+ "print(\" diffusion capacitance is %.2f nF \" %Cd)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " diffusion capacitance is 1.00 nF \n"
+ ]
+ }
+ ],
+ "prompt_number": 22
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.12 Page No 53"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "print(\"A\")\n",
+ "trr=10.0*10**-9\n",
+ "\n",
+ "#Calculations\n",
+ "tf=10.0*trr*10**9\n",
+ "print(\"minimum fall times is %d ns \" %tf)\n",
+ "print(\"B)\")\n",
+ "trr=3.0\n",
+ "tf=10*trr\n",
+ "\n",
+ "#Results\n",
+ "print(\"minimum fall times is %d ns \" %tf)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "A\n",
+ "minimum fall times is 100 ns \n",
+ "B)\n",
+ "minimum fall times is 30 ns \n"
+ ]
+ }
+ ],
+ "prompt_number": 23
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.14, Page No 58"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "\n",
+ "Io=75.0*10**-3\n",
+ "#vertical scale of 5mA/cm \n",
+ "\n",
+ "#Calculations\n",
+ "If=Io/5*10**-3\n",
+ "R1=15/(75*10**-3)\n",
+ "P=((Io)**2)*R1\n",
+ "\n",
+ "#Results\n",
+ "print(\"Pr1 = %1.1f W \" %P)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Pr1 = 1.1 W \n"
+ ]
+ }
+ ],
+ "prompt_number": 24
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.15, Page No 63"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "Vz=7.5\n",
+ "Pd=400.0*10**-3\n",
+ "D=3.2*10**-3\n",
+ "\n",
+ "#Calculations\n",
+ "Izm=Pd/Vz\n",
+ "print(\"current at 50C is %.1fA \" %(Izm*1000))\n",
+ "print(\"At 100C\")\n",
+ "P2=Pd-((100-50)*D)\n",
+ "print(\" power at 100C is %.3fW \" %P2)\n",
+ "Izm=P2/Vz\n",
+ "\n",
+ "#Results\n",
+ "print(\" current at 100C is %.1fA \" %(Izm*1000))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "current at 50C is 53.3A \n",
+ "At 100C\n",
+ " power at 100C is 0.240W \n",
+ " current at 100C is 32.0A \n"
+ ]
+ }
+ ],
+ "prompt_number": 25
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2.16, Page No 64"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "E=20.0\n",
+ "R1=620.0\n",
+ "Vz=7.5\n",
+ "\n",
+ "#Calculations\n",
+ "Vr1=E-Vz\n",
+ "Iz=Vr1/R1\n",
+ "print(\" diode current is %.1f mA \" %(Iz*1000))\n",
+ "Pd=Vz*Iz\n",
+ "\n",
+ "#Results\n",
+ "print( \"power dissipation is %.1f mW \" %(Pd*1000))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " diode current is 20.2 mA \n",
+ "power dissipation is 151.2 mW \n"
+ ]
+ }
+ ],
+ "prompt_number": 26
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
\ No newline at end of file |