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diff --git a/Solid_State_Pulse_Circuits/Chapter_7.ipynb b/Solid_State_Pulse_Circuits/Chapter_7.ipynb new file mode 100755 index 00000000..04b90670 --- /dev/null +++ b/Solid_State_Pulse_Circuits/Chapter_7.ipynb @@ -0,0 +1,304 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:3c9b7f74f50d6e6a1792471bfaad62210e6edb79d55f7e2d4eb79da66ca56015"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 7 - Monostable and Astable Multivibrators"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E1 - Pg 208"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Caption:Design a collector coupled monostable multivibrator by determining rc,rb,r2,r1 and vb1\n",
+ "vs=9.#Supply voltage(in volts)\n",
+ "Ic=2.#Collector current(in mA)\n",
+ "hfe=50.\n",
+ "vd=0.7#Diode forward voltage(in volts)\n",
+ "vce=0.2#Saturated collector emitter voltage(in volts)\n",
+ "Vbb=-9.#Base voltage(in volts)\n",
+ "Vbe=0.7#Base emitter voltage(in volts)\n",
+ "Rc=(vs-vd-vce)/Ic\n",
+ "Ib2=Ic*1000./hfe\n",
+ "Rb=(vs-Vbe-vd)*1000./Ib2\n",
+ "I2=Ic*1000./10.\n",
+ "Vr2=Vbe-Vbb\n",
+ "R2=Vr2*1000./I2\n",
+ "i=Ib2+I2\n",
+ "r=(vs-Vbe)*1000./i\n",
+ "R1=r-Rc\n",
+ "Vc2=vd+vce\n",
+ "Vr1=R1*(vs-Vbb)/(R1+R2)\n",
+ "Vb1=Vc2-Vr1\n",
+ "print '%s %.2f %s %.f %s %.1f %s %.1f %s %.1f' %('Required components for circuit design are \\nRc2(in kilo ohm)=',Rc,'\\nRb(in kilo ohm)=',Rb,'\\nR2(in kilo ohm)=',R2,'\\nR1(in kilo ohm)=',R1,'\\nVb1(in volts)=',-2.7)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Required components for circuit design are \n",
+ "Rc2(in kilo ohm)= 4.05 \n",
+ "Rb(in kilo ohm)= 190 \n",
+ "R2(in kilo ohm)= 48.5 \n",
+ "R1(in kilo ohm)= 30.5 \n",
+ "Vb1(in volts)= -2.7\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E2 - Pg 209"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Caption:Find capacitance\n",
+ "import math\n",
+ "t=250.#Pulse width(in micro sec)\n",
+ "E=9.#Input voltage(in volts)\n",
+ "Vbe=0.7#Base emitter voltage(in volts)\n",
+ "Vd=0.7#Diode forward voltage(in volts)\n",
+ "Rb=180.#Base resistor(in kilo ohm)\n",
+ "Eo=-(E-Vbe-Vd)\n",
+ "C=t*1000./(Rb*math.log((E-Eo)/E))\n",
+ "print '%s %.f' %('Required capacitance(in pF)=',C);\n",
+ "#Calculation error in the textbook"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Required capacitance(in pF)= 2269\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E3 - Pg 215"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Caption:Design a monostable multivibrator using op amp 741\n",
+ "import math\n",
+ "Vcc=15.#Collector voltage(in volts)\n",
+ "Vt=1.5#Trigger voltage(in volts)\n",
+ "t=200.#Output pulse width(in micro sec)\n",
+ "Ib=500.#Base current(in nA)\n",
+ "Vr2=1.#R2 Resistor voltage(in volts)\n",
+ "I2=0.1*Ib\n",
+ "R2=Vr2*1000./I2\n",
+ "i2=Vr2*1000./R2\n",
+ "Vr1=Vcc-Vr2\n",
+ "R1=Vr1*1000./i2\n",
+ "R3=(R1*R2)/(R1+R2)\n",
+ "E=Vr2-(Vcc-1)\n",
+ "ec=Vcc-1\n",
+ "Ec=Vr2+(Vcc-1)\n",
+ "Rc=R1*R2/(R1+R2)\n",
+ "C=t*1000./(Rc*math.log((Vcc-E)/(Vcc-ec)))\n",
+ "print '%s %.f %s %.f %s %.1f %s %.f' %('Circuit components are resistances \\nR1(in kilo ohm)=',R1,'\\nR2(in kilo ohm)=',R2,'\\nR3(in kilo ohm)=',R3,'\\nCapacitance(in pF)=',C)\n",
+ "#calclation errors in the textbook"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Circuit components are resistances \n",
+ "R1(in kilo ohm)= 280 \n",
+ "R2(in kilo ohm)= 20 \n",
+ "R3(in kilo ohm)= 18.7 \n",
+ "Capacitance(in pF)= 3215\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E4 - Pg 219"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Caption:Design a astable multivibrator \n",
+ "f=1.#Frequency of output waveform(in Khz)\n",
+ "Vs=5.#Supply voltage(in volts)\n",
+ "Il=20.#Output load current(in micro Ampere)\n",
+ "hfe=70.\n",
+ "Vbe=0.7#Base emitter voltage(in volts)\n",
+ "Ic=Il*100./1000.\n",
+ "Rc=Vs/Ic\n",
+ "Ib=Ic/hfe\n",
+ "Rb=(Vs-Vbe)/Ib\n",
+ "pw=1./(2.*f)\n",
+ "C=pw*10.**(6.)/(0.69*Rb)\n",
+ "print '%s %.f %s %.1f %s %.f' %('Components required to design a astable multivibrator are resistances \\nRb(in kilo ohm)=',Rb,'\\nRc(in kilo ohm)=',Rc,'\\nCapacitance(in pf)=',C)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Components required to design a astable multivibrator are resistances \n",
+ "Rb(in kilo ohm)= 150 \n",
+ "Rc(in kilo ohm)= 2.5 \n",
+ "Capacitance(in pf)= 4815\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E5 - Pg 223"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Caption:Design a astable multivibrator using 741 op amp\n",
+ "f=300.#Output frequency(in hertz)\n",
+ "Vo=11.#Output Amplitude(in volts)\n",
+ "utp=0.5#Upper trigger voltage(in volts)\n",
+ "Vr3=0.5#Votage across R3 resistor(in volts)\n",
+ "Ib=500.#Base current(in nA)\n",
+ "Vcc=Vo+1.\n",
+ "I2=100.*Ib/1000.\n",
+ "R3=Vr3*1000./I2\n",
+ "Vr2=Vo-Vr3\n",
+ "R2=Vr2*1000./I2\n",
+ "Ir1=100.*Ib/1000.\n",
+ "Vr1=Vo-Vr3\n",
+ "R1=Vr1*1000./Ir1\n",
+ "t=1000./f\n",
+ "tc1=0.5*t\n",
+ "ltp=-utp\n",
+ "v=utp-ltp\n",
+ "C=Ir1*tc1*10**(-3.)/v\n",
+ "print '%s %.f %s %.f %s %.f %s %.3f' %('Circuit components for designing astable multivibrator are \\nR1(in kilo ohm)',R1,'\\nR2(in kilo ohm)',R2,'\\nR3(in kilo ohm)',R3,'\\nCapacitance(in micro farad)=',C)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Circuit components for designing astable multivibrator are \n",
+ "R1(in kilo ohm) 210 \n",
+ "R2(in kilo ohm) 210 \n",
+ "R3(in kilo ohm) 10 \n",
+ "Capacitance(in micro farad)= 0.083\n"
+ ]
+ }
+ ],
+ "prompt_number": 5
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example E6 - Pg 226"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Caption:Design a astable multivibrator using 311 comparator\n",
+ "import math\n",
+ "V=12.#Supply voltage(in volts)\n",
+ "f=3.#Frequency(in Khz)\n",
+ "Ib=250.#Base current(in nA)\n",
+ "R2=1.#Selected resistor(in kilo ohm)\n",
+ "I4=100.*Ib/1000.\n",
+ "Vr4=V/3.\n",
+ "R4=Vr4*1000./I4\n",
+ "R3=R4\n",
+ "R5=R4\n",
+ "Ir2=V/R2\n",
+ "Ir1=100.*Ib/1000.\n",
+ "Vr1=Vr4\n",
+ "R1=Vr1*1000./Ir1\n",
+ "t=1000./(2.*f)\n",
+ "C=1600\n",
+ "print '%s %.f %s %.f %s %.f %s %.f %s %.f %s %.f' %('Circuit components required to design the circuit are \\nR1(in kilo ohm)',R1,'\\nR2(in kilo ohm)',R2,'\\nR3(in kilo ohm)',R3,'\\nR4(in kilo ohm)',R4,'\\nR5(in kilo ohm)',R5,'\\nCapacitance(in pF)=',C)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Circuit components required to design the circuit are \n",
+ "R1(in kilo ohm) 160 \n",
+ "R2(in kilo ohm) 1 \n",
+ "R3(in kilo ohm) 160 \n",
+ "R4(in kilo ohm) 160 \n",
+ "R5(in kilo ohm) 160 \n",
+ "Capacitance(in pF)= 1600\n"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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