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diff --git a/Electronic_Principles/Chapter_17_New.ipynb b/Electronic_Principles/Chapter_17_New.ipynb new file mode 100755 index 00000000..a6647813 --- /dev/null +++ b/Electronic_Principles/Chapter_17_New.ipynb @@ -0,0 +1,614 @@ +{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "CHAPTER 17 DIFFERENTIAL AMPLIFIERS"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-1, Page 625"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=15 #supply voltage(V)\n",
+ "RE=7.5 #Emitter resistance(KOhm)\n",
+ "\n",
+ "IT=VCC/RE #tail current (mA)\n",
+ "IE=IT/2 #emitter current (mA)\n",
+ "\n",
+ "print 'tail current = ',IT,'mA'\n",
+ "print 'emitter current = ',IE,'mA'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "tail current = 2.0 mA\n",
+ "emitter current = 1.0 mA\n"
+ ]
+ }
+ ],
+ "prompt_number": 94
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-2, Page 626"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=15 #supply voltage(V)\n",
+ "RE=7.5 #Emitter resistance(KOhm)\n",
+ "VBE=0.7 #base-emitter voltage(V)\n",
+ "RC=5 #collector resistance(KOhm)\n",
+ "\n",
+ "IT=(VCC-VBE)/RE #tail current (mA)\n",
+ "IE=IT/2 #emitter current (mA)\n",
+ "VC=VCC-(IE*RC) #collector quiescent voltage(V) \n",
+ "\n",
+ "print 'tail current = ',round(IT,2),'mA'\n",
+ "print 'emitter current = ',round(IE,2),'mA'\n",
+ "print 'collector quiescent voltage VC = ',round(VC,2),'V'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "tail current = 1.91 mA\n",
+ "emitter current = 0.95 mA\n",
+ "collector quiescent voltage VC = 10.23 V\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-3, Page 626"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=12.0 #supply voltage(V)\n",
+ "RE=5.0 #Emitter resistance(KOhm)\n",
+ "RC=3.0 #collector resistance(KOhm)\n",
+ "\n",
+ "IT=VCC/RE #tail current (mA)\n",
+ "IE=IT/2 #emitter current (mA)\n",
+ "VC=VCC-(IE*RC) #collector quiescent voltage(V) \n",
+ "IT1=(VCC-VBE)/RE #tail current (mA)\n",
+ "IE1=IT1/2 #emitter current (mA)\n",
+ "VC1=VCC-(IE1*RC) #collector quiescent voltage(V) \n",
+ "\n",
+ "print 'tail current = ',IT,'mA'\n",
+ "print 'emitter current = ',IE,'mA'\n",
+ "print 'collector quiescent voltage VC = ',VC,'V'\n",
+ "print 'with second approximation,'\n",
+ "print 'tail current = ',IT1,'mA'\n",
+ "print 'emitter current = ',IE1,'mA'\n",
+ "print 'collector quiescent voltage VC = ',VC1,'V'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "tail current = 2.4 mA\n",
+ "emitter current = 1.2 mA\n",
+ "collector quiescent voltage VC = 8.4 V\n",
+ "with second approximation,\n",
+ "tail current = 2.26 mA\n",
+ "emitter current = 1.13 mA\n",
+ "collector quiescent voltage VC = 8.61 V\n"
+ ]
+ }
+ ],
+ "prompt_number": 92
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-4, Page 631"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=12.0 #supply voltage(V)\n",
+ "RE=7.5 #Emitter resistance(KOhm)\n",
+ "RC=5.0 #collector resistance(KOhm)\n",
+ "IE=1 #emitter current as per preceding example(mA)\n",
+ "Vin=1 #input ac voltage(mV)\n",
+ "B=300 #current gain\n",
+ "\n",
+ "re=25/IE #ac emitter resistance(Ohm)\n",
+ "Av=1000*RC/re #voltage gain\n",
+ "Vout=Av*Vin #Output voltage(mV)\n",
+ "Zinb=2*B*re #input impedance of diff amp(Ohm)\n",
+ "\n",
+ "print 'voltage gain Av = ',Av\n",
+ "print 'Output voltage Vout = ',Vout,'mV'\n",
+ "print 'input impedance of diff amplifier, Zin(base) = ',Zinb/1000,'KOhm'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "voltage gain Av = 200.0\n",
+ "Output voltage Vout = 200.0 mV\n",
+ "input impedance of diff amplifier, Zin(base) = 15 KOhm\n"
+ ]
+ }
+ ],
+ "prompt_number": 91
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-5, Page 632"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=12.0 #supply voltage(V)\n",
+ "RE=7.5 #Emitter resistance(KOhm)\n",
+ "RC=5.0 #collector resistance(KOhm)\n",
+ "IE=0.955 #emitter current as per previous example(mA)\n",
+ "Vin=1 #input ac voltage(mV)\n",
+ "B=300 #current gain\n",
+ "\n",
+ "re=25/IE #ac emitter resistance(Ohm)\n",
+ "Av=1000*RC/re #voltage gain\n",
+ "Vout=Av*Vin #Output voltage(mV)\n",
+ "Zinb=2*B*re #input impedance of diff amp(Ohm)\n",
+ "\n",
+ "print 'voltage gain Av = ',Av\n",
+ "print 'Output voltage Vout = ',Vout,'mV'\n",
+ "print 'input impedance of diff amplifier, Zin(base) = ',round((Zinb/1000),2),'KOhm'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "voltage gain Av = 191.0\n",
+ "Output voltage Vout = 191.0 mV\n",
+ "input impedance of diff amplifier, Zin(base) = 15.71 KOhm\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-6, Page 633"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=12.0 #supply voltage(V)\n",
+ "RE=7.5 #Emitter resistance(KOhm)\n",
+ "RC=5.0 #collector resistance(KOhm)\n",
+ "IE=1 #emitter current as per preceding example(mA)\n",
+ "V2=1 #input ac voltage(mV)\n",
+ "B=300 #current gain\n",
+ "\n",
+ "re=25/IE #ac emitter resistance(Ohm)\n",
+ "Av=1000*RC/re #voltage gain\n",
+ "Vout=Av*V2 #Output voltage(mV)\n",
+ "Zinb=2*B*re #input impedance of diff amp(Ohm)\n",
+ "\n",
+ "print 'V2 input is at inverting input, So, ideally same as previous case.'\n",
+ "print 'Voltage gain Av = ',Av\n",
+ "print 'Output voltage Vout = ',Vout,'mV'\n",
+ "print 'input impedance of diff amplifier, Zin(base) = ',Zinb/1000,'KOhm'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "V2 input is at inverting input, So, ideally same as previous case.\n",
+ "Voltage gain Av = 200.0\n",
+ "Output voltage Vout = 200.0 mV\n",
+ "input impedance of diff amplifier, Zin(base) = 15 KOhm\n"
+ ]
+ }
+ ],
+ "prompt_number": 96
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-7, Page 633"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=15.0 #supply voltage(V)\n",
+ "RC=1.0**10**6 #collector resistance(Ohm)\n",
+ "RE=1.0**10**6 #emitter resistance(Ohm)\n",
+ "IE=1 #emitter current as per preceding example(mA)\n",
+ "Vin=7 #input ac voltage(mV)\n",
+ "B=300 #current gain\n",
+ "\n",
+ "IT=VCC/RE #tail current (uA)\n",
+ "IE=IT/2 #emitter current (uA)\n",
+ "re=25/IE/1000 #ac emitter resistance(Ohm)\n",
+ "Av=RC/(2*re) #voltage gain\n",
+ "Vout=Av*Vin #Output voltage(V)\n",
+ "Zinb=2*B*re #input impedance of diff amp(MOhm)\n",
+ "\n",
+ "print 'Voltage gain Av = ',Av\n",
+ "print 'Output voltage Vout = ',Vout/1000,'V'\n",
+ "print 'input impedance of diff amplifier, Zin(base) = ',Zinb,'MOhm'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Voltage gain Av = 150.0\n",
+ "Output voltage Vout = 1.05 V\n",
+ "input impedance of diff amplifier, Zin(base) = 2.0 MOhm\n"
+ ]
+ }
+ ],
+ "prompt_number": 97
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-8, Page 639"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=15.0 #supply voltage(V)\n",
+ "RC=5.0*10**3 #collector resistance(Ohm)\n",
+ "RE=7.5*10**3 #emitter resistance(Ohm)\n",
+ "RB=1*10**3 #base resistance(Ohm)\n",
+ "Vin=10 #input ac voltage(mV)\n",
+ "Av=200 #voltage gain\n",
+ "Iinb=3*10**-6 #bias current(A)\n",
+ "Iino =0.5*10**-6 #Iin(off) (A) \n",
+ "Vino=1.0 #Vin(off) (mV)\n",
+ "\n",
+ "V1err=RB*Iinb*1000 #dc error input1 (mV)\n",
+ "V2err=RB*(Iino/2)*1000 #dc error input2 (mV)\n",
+ "V3err=Vino #dc error input3 (mV)\n",
+ "Verror=Av*(V1err+V2err+V3err) #output error voltage(mV)\n",
+ "V1err1=0 #dc error input1 (mV)\n",
+ "V2err1=RB*Iino*1000 #dc error input2 (mV)\n",
+ "V3err1=Vino #dc error input3 (mV)\n",
+ "Verror1=Av*(V1err1+V2err1+V3err1) #output error voltage(mV)\n",
+ "\n",
+ "print 'output error voltage Verror = ',Verror,'mV'\n",
+ "print 'output error voltage Verror = ',Verror1,'mV'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "output error voltage Verror = 850.0 mV\n",
+ "output error voltage Verror = 300.0 mV\n"
+ ]
+ }
+ ],
+ "prompt_number": 37
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-9, Page 640"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=15.0 #supply voltage(V)\n",
+ "RC=1.0*10**6 #collector resistance(Ohm)\n",
+ "RE=1.0*10**6 #emitter resistance(Ohm)\n",
+ "RB=10*10**3 #base resistance(Ohm)\n",
+ "Vin=10 #input ac voltage(mV)\n",
+ "Av=300 #voltage gain\n",
+ "Iinb=80*10**-9 #bias current(A)\n",
+ "Iino=20*10**-9 #Iin(off) (A) \n",
+ "Vino=5.0 #Vin(off) (mV)\n",
+ "\n",
+ "V1err=0 #dc error input1 (mV)\n",
+ "V2err=RB*(Iino/2)*1000 #dc error input2 (mV)\n",
+ "V3err=Vino #dc error input3 (mV)\n",
+ "Verror=Av*(V1err+V2err+V3err) #output error voltage(mV)\n",
+ "\n",
+ "print 'output error voltage Verror = ',Verror/1000,'V'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "output error voltage Verror = 1.53 V\n"
+ ]
+ }
+ ],
+ "prompt_number": 98
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-10, Page 643"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=15.0 #supply voltage(V)\n",
+ "RC=1.0*10**6 #collector resistance(Ohm)\n",
+ "RE=1.0*10**6 #emitter resistance(Ohm)\n",
+ "Vin=1 #input ac voltage(mV)\n",
+ "\n",
+ "Av_CM=RC/(2*RE) #common mode voltage gain\n",
+ "Vout=Av_CM*Vin #output voltage(mV) \n",
+ "\n",
+ "print 'common mode voltage gain : Av(CM) = ',Av_CM\n",
+ "print 'Output voltage Vout = ',Vout,'mV'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "common mode voltage gain : Av(CM) = 0.5\n",
+ "Output voltage Vout = 0.5 mV\n"
+ ]
+ }
+ ],
+ "prompt_number": 45
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-11, Page 643"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "Vin=1 #input ac voltage(mV)\n",
+ "Av=150 #voltage gain\n",
+ "Av_CM=0.5 #common mode voltage gain\n",
+ "\n",
+ "Vout1=Av*Vin #output voltage1(mV)\n",
+ "Vout2=Av_CM*Vin #output voltage2(mV)\n",
+ "Vout=Vout1+Vout2 #output volatge(mV)\n",
+ "\n",
+ "print 'output voltage Vout1 = ',Vout1,'mV'\n",
+ "print 'output voltage Vout2 = ',Vout2,'mV'\n",
+ "print 'output voltage Vout = ',Vout,'mV'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "output voltage Vout1 = 150 mV\n",
+ "output voltage Vout2 = 0.5 mV\n",
+ "output voltage Vout = 150.5 mV\n"
+ ]
+ }
+ ],
+ "prompt_number": 46
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-12, Page 644"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "CMRR_dB=90 #CMRR(dB)\n",
+ "Av=200000 #voltage gain\n",
+ "Vin=1*10**-6 #input voltage(V)\n",
+ "\n",
+ "CMRR=10**(CMRR_dB/20.0) #CMRR \n",
+ "Av_CM=Av/CMRR #common mode voltage gain \n",
+ "Vout1=Av*Vin #desired output: voltage1(V)\n",
+ "Vout2=Av_CM*Vin #common mode output: voltage2(V)\n",
+ "\n",
+ "print 'output voltage Vout1 = ',Vout1,'V'\n",
+ "print 'output voltage Vout2 = ',round((Vout2*10**6),2),'uV'\n",
+ "print 'see, desired output is much larger than common mode output.'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "output voltage Vout1 = 0.2 V\n",
+ "output voltage Vout2 = 6.32 uV\n",
+ "see, desired output is much larger than common mode output.\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-13, Page 651"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "VCC=15.0 #supply voltage(V)\n",
+ "RC=7.5*10**3 #collector resistance(Ohm)\n",
+ "RE=7.5*10**3 #emitter resistance(Ohm)\n",
+ "V1=10 #input ac voltage(mV)\n",
+ "re=25 #as per example 17-4 (Ohm) \n",
+ "RL=15*10**3 #load resistance(KOhm)\n",
+ "\n",
+ "Av=RC/re #voltage gain\n",
+ "Vout=Av*V1/1000 #output voltage(V) \n",
+ "RTH=2*RC #Thevenin resistance(Ohm)\n",
+ "VL=(RL/(RL+RTH))*Vout #load voltage(V)\n",
+ "\n",
+ "print 'Load voltage VL = ',VL,'V'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Load voltage VL = 1.5 V\n"
+ ]
+ }
+ ],
+ "prompt_number": 67
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17-14, Page 652"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "RL=15.0 #load resistance as per previous example(Ohm)\n",
+ "VL=3 #load voltage as per previous example(V)\n",
+ "\n",
+ "iL=VL/RL #load current(mA)\n",
+ "\n",
+ "print 'Load current iL = ',iL,'mA'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Load current iL = 0.2 mA\n"
+ ]
+ }
+ ],
+ "prompt_number": 69
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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