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diff --git a/Electronic_Devices_/Chapter3.ipynb b/Electronic_Devices_/Chapter3.ipynb new file mode 100644 index 00000000..41e63a83 --- /dev/null +++ b/Electronic_Devices_/Chapter3.ipynb @@ -0,0 +1,377 @@ +{ + "metadata": { + "name": "Chapter_3" + }, + "nbformat": 2, + "worksheets": [ + { + "cells": [ + { + "cell_type": "markdown", + "source": [ + "<h1>Chapter 3: Special-purpose Diodes<h1>" + ] + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.1, Page Number:88<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "%pylab inline" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "", + "Welcome to pylab, a matplotlib-based Python environment [backend: module://IPython.zmq.pylab.backend_inline].", + "For more information, type 'help(pylab)'." + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "''' To find Zener Impedence'''", + "", + "# variable declaration", + "delVZ=50*10**-3; #voltage in volts, from graph", + "delIZ=5*10**-3; #current in amperes, from rgraph", + "", + "#calculation", + "ZZ=delVZ/delIZ; #zener impedence", + "", + "# result", + "print \"zener impedance = %d ohm \" %ZZ" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "zener impedance = 10 ohm " + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.2, Page Number:89<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "''' Voltage accross zener terminals'''", + "", + "# variable declaration", + "I_ZT=37*10**-3; #IN AMPERES", + "V_ZT=6.80; #IN VOLTS", + "Z_ZT=3.50; #IN OHMS", + "I_Z=50*10**-3; #IN AMPERES", + "", + "#calculation", + "DEL_I_Z=I_Z-I_ZT; #change current", + "DEL_V_Z=DEL_I_Z*Z_ZT; #change voltage", + "V_Z=V_ZT+DEL_V_Z; #voltage across zener terminals", + "print \"voltage across zener terminals when current is 50 mA = %.3f volts\" %V_Z", + "I_Z=25*10**-3; #IN AMPERES", + "DEL_I_Z=I_Z-I_ZT; #change current", + "DEL_V_Z=DEL_I_Z*Z_ZT; #change voltage", + "V_Z=V_ZT+DEL_V_Z; #voltage across zener terminals", + "", + "#result", + "print \"voltage across zener terminals when current is 25 mA = %.3f volts\" %V_Z" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "voltage across zener terminals when current is 50 mA = 6.845 volts", + "voltage across zener terminals when current is 25 mA = 6.758 volts" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.3, Page Number:90<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "''' Zener Voltage'''", + "", + "# variable declaration", + "V_Z=8.2; #8.2 volt zener diode", + "TC=0.0005; #Temperature coefficient (per degree celsius)", + "T1=60; #Temperature 1 in celsius", + "T2=25; #Temperature 2 in celsius", + "", + "#calculation", + "DEL_T=T1-T2; #change in temp", + "del_V_Z=V_Z*TC*DEL_T; #change in voltage", + "voltage=V_Z+del_V_Z; #zener voltage", + "", + "#result", + "print \"zener voltage at 60 degree celsius = %.3f volt\" %voltage" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "zener voltage at 60 degree celsius = 8.343 volt" + ] + } + ], + "prompt_number": 4 + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.4, Page Number:90<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "''' Power dissipation'''", + "", + "# variable declaration", + "P_D_max=400*10**-3; #power in watts", + "df=3.2*10**-3 #derating factor in watts per celsius", + "del_T=(90-50); #in celsius, temperature difference", + "", + "#calculation", + "P_D_deru=P_D_max-df*del_T; #power dissipated", + "P_D_der=P_D_deru*1000;", + "", + "#result", + "print \"maximum power dissipated at 90 degree celsius = %d mW\" %P_D_der" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "maximum power dissipated at 90 degree celsius = 272 mW" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.5, Page Number: 92<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "''' Zener Diode voltage regulation'''", + "", + "# variable declaration", + "V_Z=5.1;", + "I_ZT=49*10**-3;", + "I_ZK=1*10**-3;", + "Z_Z=7;", + "R=100;", + "P_D_max=1;", + "", + "#calculation", + "V_out=V_Z-(I_ZT-I_ZK)*Z_Z; #output voltage at I_ZK", + "V_IN_min=I_ZK*R+V_out; #input voltage", + "I_ZM=P_D_max/V_Z; #current", + "V_out=V_Z+(I_ZM-I_ZT)*Z_Z; #output voltage at I_ZM", + "V_IN_max=I_ZM*R+V_out; #max input voltage", + "", + "#result", + "print \"maximum input voltage regulated by zener diode = %.3f volts\" %V_IN_max", + "print \"minimum input voltage regulated by zener diode = %.3f volts\" %V_IN_min" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "maximum input voltage regulated by zener diode = 25.737 volts", + "minimum input voltage regulated by zener diode = 4.864 volts" + ] + } + ], + "prompt_number": 6 + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.6, Page Number: 93<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "''' Min & Max current'''", + "", + "# variable declaration", + "V_Z=12.0; #voltage in volt", + "V_IN=24.0; #ip voltage in volt", + "I_ZK=0.001; #current in ampere", + "I_ZM=0.050; #current in ampere ", + "Z_Z=0; #impedence", + "R=470; #resistance in ohm", + "", + "#calculation", + "#when I_L=0, I_Z is max and is equal to the total circuit current I_T", + "I_T=(V_IN-V_Z)/R; #current", + "I_Z_max=I_T; #max current", + "if I_Z_max<I_ZM : # condition for min currert ", + " I_L_min=0;", + "", + "I_L_max=I_T-I_ZK; #max current", + "R_L_min=V_Z/I_L_max; #min resistance", + "", + "#result", + "print \"minimum value of load resistance = %.2f ohm\" %R_L_min", + "print \"minimum curent = %.3f ampere\" %I_L_min", + "print \"maximum curent = %.3f ampere\" %I_L_max" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "minimum value of load resistance = 489.16 ohm", + "minimum curent = 0.000 ampere", + "maximum curent = 0.025 ampere" + ] + } + ], + "prompt_number": 7 + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.7, Page Number: 94<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "''' to find load resistance'''", + "", + "# variable declaration", + "V_IN=24.0; #voltage in volt", + "V_Z=15.0; #voltage in volt", + "I_ZK=0.25*10**-3; #current in ampere", + "I_ZT=17*10**-3; #current in ampere", + "Z_ZT=14.0; #impedence", + "P_D_max=1.0; #max power dissipation", + "", + "#calculation", + "V_out_1=V_Z-(I_ZT-I_ZK)*Z_ZT; #output voltage at I_ZK", + "print \"output voltage at I_ZK = %.2f volt\" %V_out_1", + "I_ZM=P_D_max/V_Z;", + "", + "V_out_2=V_Z+(I_ZM-I_ZT)*Z_ZT; #output voltage at I_ZM", + "print \"output voltage a I_ZM = %.2f volt\" %V_out_2", + "R=(V_IN-V_out_2)/I_ZM; #resistance", + "print \"value of R for maximum zener current, no load = %.2f ohm\" %R", + "print \"closest practical value is 130 ohms\"", + "R=130.0;", + "#for minimum load resistance(max load current) zener current is minimum (I_ZK)", + "I_T=(V_IN-V_out_1)/R; #current", + "I_L=I_T-I_ZK; #current", + "R_L_min=V_out_1/I_L; #minimum load resistance", + "", + "#result", + "print \"minimum load resistance = %.2f ohm\" %R_L_min" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "output voltage at I_ZK = 14.77 volt", + "output voltage a I_ZM = 15.70 volt", + "value of R for maximum zener current, no load = 124.57 ohm", + "closest practical value is 130 ohms", + "minimum load resistance = 208.60 ohm" + ] + } + ], + "prompt_number": 8 + }, + { + "cell_type": "markdown", + "source": [ + "<h3>Example 3.8, Page Number: 96<h3>" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "'''Zener limiting'''", + "", + "#variable declaration", + "V_p_in=10.0; #Peak input voltage", + "V_th=0.7; #forward biased zener", + "V_Z1=5.1;", + "V_Z2=3.3;", + "", + "V_p_in=20.0;", + "V_Z1=6.2;", + "V_Z2=15.0;", + "", + "#result", + "print('max voltage = %.1f V'%(V_Z1+V_th))", + "print('min voltage = %.1f V'%(-(V_Z2+V_th)))" + ], + "language": "python", + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "max voltage = 6.9 V", + "min voltage = -15.7 V" + ] + } + ], + "prompt_number": 9 + } + ] + } + ] +}
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