From d36fc3b8f88cc3108ffff6151e376b619b9abb01 Mon Sep 17 00:00:00 2001 From: kinitrupti Date: Fri, 12 May 2017 18:40:35 +0530 Subject: Revised list of TBCs --- Electronic_Devices_And_Circuits/EDC_ch_8.ipynb | 677 ------------------------- 1 file changed, 677 deletions(-) delete mode 100755 Electronic_Devices_And_Circuits/EDC_ch_8.ipynb (limited to 'Electronic_Devices_And_Circuits/EDC_ch_8.ipynb') diff --git a/Electronic_Devices_And_Circuits/EDC_ch_8.ipynb b/Electronic_Devices_And_Circuits/EDC_ch_8.ipynb deleted file mode 100755 index 2f0f9ff5..00000000 --- a/Electronic_Devices_And_Circuits/EDC_ch_8.ipynb +++ /dev/null @@ -1,677 +0,0 @@ -{ - "metadata": { - "name": "" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Chapter 8: Oscillators" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.1, Page No.272" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#feed bck factor\n", - "import math\n", - "\n", - "#variable declaration\n", - "A=50.0 #unitless\n", - "\n", - "#Calculations\n", - "Beta=1/A #unitless\n", - "\n", - "#Result\n", - "print(\"Barkhausen criterion for oscillator : Beta*A=1\")\n", - "print(\"Feedback Factor to make oscillator : %.2f\"%Beta)" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Barkhausen criterion for oscillator : Beta*A=1\n", - "Feedback Factor to make oscillator : 0.02\n" - ] - } - ], - "prompt_number": 10 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.2, Page No.277" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Range of variable capacitor\n", - "import math\n", - "#variable declaration\n", - "L=100 #in uH\n", - "L=L*10**-6 #in H\n", - "f1=500.0 #in kHz\n", - "f1=f1*10**3 #in Hz\n", - "f2=1500.0 #in kHz\n", - "f2=f2*10**3 #in Hz\n", - "\n", - "#Calculations\n", - "#Formula : f=1/(2*%pi*sqrt(L*C))\n", - "C1=1/(4*math.pi**2*f1**2*L)\n", - "C2=1/(4*math.pi**2*f2**2*L)\n", - "\n", - "#Result\n", - "print(\"Range of capacitor : %.0f pF to %.0f pF\"%(C2*10**12,math.ceil(C1*10**12)))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Range of capacitor : 113 pF to 1014 pF\n" - ] - } - ], - "prompt_number": 9 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.3, page No.283" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#C2 of colpitt oscilator\n", - "import math\n", - "#variable declaration\n", - "L=100.0 #in mH\n", - "L=L*10**-3 #in H\n", - "C1=0.1 #in uF\n", - "C1=C1*10**-6 #in F\n", - "f=100.0*10**3 #in Hz\n", - "f=f*10**3 #in Hz\n", - "\n", - "#Calculations\n", - "#Formula : f=1/(2*pi*sqrt(L*C))\n", - "C=1.0/(4*math.pi**2*f**2*L)\n", - "#Formula : C=C1*C2/(C1+C2)\n", - "C2=C*C1/(C1-C)\n", - "\n", - "#Result\n", - "print(\"C2 in farad : %.3f * 10^15\"%(C2*10**15))\n", - "#Note : Answer in the book is wrong." - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "C2 in farad : 0.025 * 10^15\n" - ] - } - ], - "prompt_number": 14 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.4, page No. 288" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Frequency of oscillation\n", - "import math\n", - "\n", - "#variable declaration\n", - "R=100 #in kOhm\n", - "R=R*10**3 #in Ohm\n", - "C=0.01 #in uF\n", - "C=C*10**-6 #in F\n", - "\n", - "#calculations\n", - "fo=math.sqrt(6)/(2*math.pi*R*C)\n", - "\n", - "#result\n", - "print(\"Frequency of oscillation in Hz : %.3f\"%fo)\n", - "#Note : Answer in the book is not accurate." - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Frequency of oscillation in Hz : 389.848\n" - ] - } - ], - "prompt_number": 15 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.5, Page No.288" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Amplifier voltage gain\n", - "import math\n", - "\n", - "print(\"Put alfa=sqrt(6) to find the gain\");\n", - "alfa=math.sqrt(6) #unitless\n", - "\n", - "#calculation\n", - "Beta=1/(1-5*alfa**2);\n", - "#Barkhausen critera : A*|Beta|>=1\n", - "Beta=-Beta\n", - "A=1/Beta\n", - "\n", - "#Result\n", - "print(\"Minimum Gain of Amplifier must be :%.0f \"%A)" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Put alfa=sqrt(6) to find the gain\n", - "Minimum Gain of Amplifier must be :29 \n" - ] - } - ], - "prompt_number": 18 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.6, Page No.292" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Frequency of oscillation and min current gain\n", - "import math\n", - "#variable declaration\n", - "R1=50.0 #in kohm\n", - "R1=R1*10**3 #in ohm\n", - "C1=0.001 #in uF\n", - "C1=C1*10**-6 #in F\n", - "R2=1.0 #in kohm\n", - "R2=R2*10**3 #in ohm\n", - "C2=0.01 #in uF\n", - "C2=C2*10**-6 #in F\n", - "\n", - "#calculation\n", - "\n", - "#Part (i)\n", - "#Formula : f=1/(2*%pi*sqrt(C1*C2*R1*R2))\n", - "f=1/(2*math.pi*math.sqrt(C1*C2*R1*R2))\n", - "\n", - "#Part (ii)\n", - "CurrentGain=1+C2/C1+R1/R2\n", - "\n", - "#Result\n", - "print(\"Frequency of oscillations in kHz :%.3f \"%(f/1000.0))\n", - "print(\"Current Gain :%.0f \"%CurrentGain)\n", - "#Note:Answer for Frequency of oscillations is incorrect in the book" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Frequency of oscillations in kHz :7.118 \n", - "Current Gain :61 \n" - ] - } - ], - "prompt_number": 6 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.7, Page No.292" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Resistnce to cover frequency range\n", - "import math\n", - "#variable declaration\n", - "fmin=20.0 #in Hz\n", - "fmax=20.0 #in kHz\n", - "Cmin=30.0 #in pF\n", - "Cmax=300.0 #in pF\n", - "\n", - "#Calculations\n", - "#Formula : fo=1/(2*%pi*R*C))\n", - "R=1/(2*math.pi*fmin*Cmax*10**-12)\n", - "\n", - "#To cover frequency range from 200Hz to 2kHz R should be decrease by factor of 10\n", - "R_dash = R/10.0 \n", - "#TO cover the frequency range from 2kHz to 20kHz, R should be decrease by factor of 100\n", - "R_dash_2= R/100.0\n", - "#Result\n", - "print(\"Minimum Fequeny correspond to maximum capacitance.\")\n", - "print(\"Required resistance in Mohm : %.1f\"%(R/10**6))\n", - "print(\"\\nR_dash in MOhm = %.2f (for frequency range 200Hz to 2kHz)\"%(R_dash/10**6))\n", - "print(\"\\nR_dash_2 in kOhm = %.0f(for frequency range 2kHz to 20kHz)\"%(R_dash_2*1000//10**6))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Minimum Fequeny correspond to maximum capacitance.\n", - "Required resistance in Mohm : 26.5\n", - "\n", - "R_dash in MOhm = 2.65 (for frequency range 200Hz to 2kHz)\n", - "\n", - "R_dash_2 in kOhm = 265(for frequency range 2kHz to 20kHz)\n" - ] - } - ], - "prompt_number": 13 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.8, Page No.296" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Resonant Frequency\n", - "import math\n", - "#variable declaration\n", - "f=500.0 #in kHz\n", - "T1=50.0 #in degree C\n", - "T2=60.0 #in degree C\n", - "TC=-20.0 #in ppm/degree C\n", - "\n", - "#Calculations\n", - "ChangeInFreq=TC*(f*10**-3)*(T1-T2) #in Hz\n", - "ResonantFreq=f*1000-ChangeInFreq #in Hz\n", - "\n", - "#Result\n", - "print(\"Resonant frequency in kHz : %.1f\"%(ResonantFreq/1000))\n", - "#Note : answer in the book is wrong." - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Resonant frequency in kHz : 499.9\n" - ] - } - ], - "prompt_number": 35 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.9, Page No.296" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Resonant Frequency\n", - "import math\n", - "#Variable declarations\n", - "f=450.0 #in kHz\n", - "T1=30.0 #in degree C\n", - "T2=50.0 #in degree C\n", - "TC=-10.0 #in ppm/degree C\n", - "\n", - "#Calculations\n", - "PercentChange=-TC*100/10**6 #in %\n", - "TotalChangeInFreq=(PercentChange/100)*(f*10**3)*(T2-T1) #in Hz\n", - "ResonantFreq=f*1000-TotalChangeInFreq #in Hz\n", - "\n", - "#Result\n", - "print(\"Resonant frequency in kHz :%.3f \"%(ResonantFreq/1000))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Resonant frequency in kHz :449.910 \n" - ] - } - ], - "prompt_number": 19 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "example 8.10, Page No.297" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Parallel and series resonant frequencies\n", - "import math\n", - "#Variable declaration\n", - "L=0.5 #in H\n", - "C=0.05 #in pF\n", - "R=1 #in kohm\n", - "Cm=1 #in pF\n", - "\n", - "#Calculations\n", - "fs=1/(2*math.pi*math.sqrt(L*C*10**-12))\n", - "fp=1/(2*math.pi*math.sqrt((L*C*10**-12*Cm*10**-12)/(C*10**-12+Cm*10**-12)))\n", - "\n", - "#Result\n", - "print(\"Series resonant frequency in MHz :%.3f\"%(fs/10**6))\n", - "print(\"Parallel resonant frequency in MHz :%.3f\"%(fp/10**6))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Series resonant frequency in MHz :1.007\n", - "Parallel resonant frequency in MHz :1.031\n" - ] - } - ], - "prompt_number": 20 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Miscellaneous example 8.1, Page No.302" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Value of L\n", - "import math\n", - "#Variable declaration\n", - "L2=0.4 #in mH\n", - "C=0.004 #in \u00b5F\n", - "f=120 #in KHz\n", - "L1=1/(4*math.pi**2*(f*10**3)**2*C*10**-6)-L2*10**-3\n", - "\n", - "#Result\n", - "print(\"Value of L1(in mH) :%.2f\"%(L1*10**3))\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Value of L1(in mH) :0.04\n" - ] - } - ], - "prompt_number": 40 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Miscellaneous example 8.2, page No.303" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Value of C and hfe\n", - "import math\n", - "#variable declaration\n", - "fo=10.0 #in KHz\n", - "R1=25.0 #in kohm\n", - "R2=60.0 #in kohm\n", - "Rc=40.0 #in kohm\n", - "R=7.1 #in kohm\n", - "hie=1.8 #in kohm\n", - "\n", - "#Calculations\n", - "C=1/(2*math.pi*fo*10**3*R*10**3*math.sqrt(6+4*Rc/R))\n", - "hfe=23+29*R/Rc+4*Rc/R\n", - "\n", - "#Result\n", - "print(\"Value of Capacitor(in nF) %.3f\"%(C*10**9))\n", - "print(\"Value of hfe is \u2265 %.3f\"%hfe)" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Value of Capacitor(in nF) 0.420\n", - "Value of hfe is \u2265 50.683\n" - ] - } - ], - "prompt_number": 22 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Miscellaneous example 8.3, Page No.303" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Value of Capacitor\n", - "import math\n", - "#variable declaration\n", - "R=100.0 #in kohm\n", - "fo=10.0 #in KHz\n", - "\n", - "#Calculations\n", - "C=1/(2*math.pi*fo*10**3*R*10**3)\n", - "\n", - "#Result\n", - "print(\"Value of Capacitor(in pF) :%.0f\"%(C*10**12))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Value of Capacitor(in pF) :159\n" - ] - } - ], - "prompt_number": 47 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Miscellaneous example 8.4, page No.304" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Various parameter of colpitt oscillator\n", - "import math\n", - "\n", - "#variable declaration\n", - "L=40.0 #in mH\n", - "C1=100.0 #in pF\n", - "C2=500.0 #in pF\n", - "Vout=10.0 #in volt\n", - "\n", - "#Calculations\n", - "fo=1/(2*math.pi*math.sqrt(L*10**-3*C1*10**-12*C2*10**-12/(C1*10**-12+C2*10**-12)))\n", - "print(\"Frequency of oscillation (in KHz) :%.1f\"%(fo*10**-3))\n", - "Vf=Vout*C1/C2\n", - "Gain=C2/C1\n", - "Gain=10 #given\n", - "C1=C2/Gain #in pF\n", - "fo=1/(2*math.pi*math.sqrt(L*10**-3*C1*10**-12*C2*10**-12/(C1*10**-12+C2*10**-12)))\n", - "\n", - "#Result\n", - "\n", - "print(\"Feedback voltage in volt :%.0f\"%Vf)\n", - "print(\"Minimum Gain is %.0f\"%Gain)\n", - "print(\"For a gain of 10 C1 in pF is :%.0f\"%C1)\n", - "print(\"New frequency of oscillation (in KHz) :%.3f\"%(fo*10**-3))" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Frequency of oscillation (in KHz) :87.2\n", - "Feedback voltage in volt :2\n", - "Minimum Gain is 10\n", - "For a gain of 10 C1 in pF is :50\n", - "New frequency of oscillation (in KHz) :118.032\n" - ] - } - ], - "prompt_number": 23 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Miscellaneous example 8.5, Page No.305" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Resonant frequencies and Q factor\n", - "import math\n", - "#Variable declaration\n", - "L=0.5 #in H\n", - "Cs=0.06 #in pF\n", - "Cp=1.0 #in pF\n", - "R=5.0 #in Kohm\n", - "\n", - "#calculations\n", - "fs=1/(2*math.pi*math.sqrt(L*Cs*10**-12))\n", - "Q=2*math.pi*fs*L/(R*10**3)\n", - "print(\"Seies resonance frequency(in KHz): %.1f\"%(fs/10**3))\n", - "print(\"Q-factor f the crystal at fs is %.0f\"%Q)\n", - "fp=(1/(2*math.pi))*math.sqrt((Cs*10**-12+Cp*10**-12)/(L*Cs*10**-12*Cp*10**-12))\n", - "Q=2*math.pi*fp*L/(R*10**3)\n", - "print(\"\\nSeies resonance frequency(in KHz) : %.0f\"%(fp/10**3))\n", - "print(\"Q-factor f the crystal at fs is %.0f\"%Q)" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Seies resonance frequency(in KHz): 918.9\n", - "Q-factor f the crystal at fs is 577\n", - "\n", - "Seies resonance frequency(in KHz) : 946\n", - "Q-factor f the crystal at fs is 594\n" - ] - } - ], - "prompt_number": 61 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit