{
"metadata": {
"name": "ch_3"
},
"nbformat": 2,
"worksheets": [
{
"cells": [
{
"cell_type": "markdown",
"source": [
"<h1>Chapter 3: Operational Amplifier Characteristics<h1>"
]
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.1, Page No: 107<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Vp=15.0 #Volatge in volt",
"Vm=-15.0 #Voltage in volt",
"R5=40.0*10**3 #Resistance in ohm",
"Vbe11=0.7 #Voltage in volt",
"Vbe12=Vbe11 #Voltage in volt",
"",
"#Calculations:",
"Iref= (Vp-Vbe12-Vbe11-Vm)/R5 #Calculating reference current",
"",
"Iref=Iref*10**3 #Calculating reference current",
"",
"#Results:",
"print(\"Iref= %.3f mA\"%Iref)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Iref= 0.715 mA"
]
}
],
"prompt_number": 13
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.2, Page No: 107<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Iref= 0.715*10**-3 #reference current in ampere",
"Ic13b= 0.75*Iref #Current in ampere",
"Ic17=Ic13b #Current in ampere",
"Ie17=Ic13b #Current in ampere",
"Beta=150.0 #Gain",
"Vbe17=0.7 #Vbe volatge in volt",
"R9=50.0*10**3 #Resistance in ohm",
"R8=100.0 #Resistance in ohm",
"",
"#Calculations:",
"Ic16= (Ic17/Beta) + (Ie17*R8 + Vbe17)/R9 #Calculating current",
"Ic16=Ic16*1000000.0/1.232 #Calculating current",
"",
"#Results:",
"print(\"\\nIc16= %.1f uA\"%Ic16)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"Ic16= 15.1 uA"
]
}
],
"prompt_number": 14
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.3, Page No:108<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"Iref=0.000715 #Reference current in ampere",
"Vbe19=0.7 #Vbe voltage in volt",
"Is18=10**-14 #Current in ampere",
"Is19=10**-14 #Current in ampere",
"R10=50000.0 #Resistance in ohm",
"",
"Is14=2.0*10**-14 #Current in ampere",
"Is20=2.0*10**-14 #Current in ampere",
"Vbe=0.7 #Voltge Vbe in volt",
"Vbe19=0.612 #Voltage Vbe in volt",
"Beta=200.0 #Gain",
"Vbe18=0.549 #Volatge vbe in volt",
"",
"#Calculations:",
"Ic13a=0.25*Iref #Calculating Current ",
"",
"Ir10=Vbe19/R10 #Calculating current",
"Ic19=Ic13a-Ir10 #Calculating current",
"",
"Ib19=Ic19/Beta #Calculating current",
"Ic18=Ir10+Ib19 #Calculating current",
" ",
"Vbb=Vbe18+Vbe19 #calculating voltage",
"",
"Ic14=Is20*math.exp(Vbb/2*0.026) #Calculating current",
"Ic14=Ic14*10**15/0.2042 #Calculating current",
"",
"#Results:",
"print('Vbb= %.3f V'%Vbb)",
"print('\\nIc14= %.2f uA'%Ic14)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Vbb= 1.161 V",
"",
"Ic14= 99.43 uA"
]
}
],
"prompt_number": 15
},
{
"cell_type": "markdown",
"source": [
"<h3>Example no. 3.4, Page No: 115<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Ib1=400.0*10**-9 #Current in ampere",
"Ib2=300.0*10**-9 #Current in ampere",
"",
"#Calculations:",
"Ib=(Ib1+Ib2)/2.0 #Calculating current",
"Ios=Ib1-Ib2 #Calculating current",
"Ib=Ib*10**9 #Calculating current",
"Ios=Ios*10**9 #Calculating current",
"",
"#Results:",
"print('Ib= %.1f nA'%Ib)",
"print('\\nIos= %.1f nA'%Ios)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Ib= 350.0 nA",
"",
"Ios= 100.0 nA"
]
}
],
"prompt_number": 16
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.5, Page No: 115<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Ios=400.0*10**-9 #Current in ampere",
"Rf=100.0*10**3 #Resistance in ohm ",
"R1=1.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"Vo=Rf*Ios #Calculating output voltage",
"Vo=Vo*1000.0 #Calculating output voltage ",
"",
"#Results:",
"print('Vo= %.1f mV'%Vo)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Vo= 40.0 mV"
]
}
],
"prompt_number": 17
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.6, Page No: 117<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Rf=10.0*10**3 #Resistance in ohm",
"R1=2.0*10**3 #Resistance in ohm",
"Vos=5.0*10**-3 #Voltage in volt",
"Ios=50.0*10**-9 #Input offset current in ampere",
"Ib=200.0*10**-9 #Input bias current in ampere",
"Ta=25.0 #Temperature in degree celsius",
"#Calculations:",
"# without compensating resistor",
"Vot=(1+Rf/R1)*Vos + Rf*Ib #Calculating output offset voltage",
"Vot=Vot*1000 #Calculating output offset voltage",
"print('Vot= %.1f mV'%Vot)",
"",
"",
"# with compensating resistor",
"Vot=(1+Rf/R1)*Vos + Rf*Ios #Calculating output offset voltage",
"Vot=Vot*1000 #Calculating output offset voltage",
"print('\\nVot= %.1f mV'%Vot)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Vot= 32.0 mV",
"",
"Vot= 30.5 mV"
]
}
],
"prompt_number": 2
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.7, Page No:119<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Part A",
"#Variable Declaration:",
"Vos=1.5*10**-3 #Voltage in volt",
"Rf=1.0*10**6 #feedback resistance in ohm",
"R1=100.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"Vo=Vos*(1+Rf/R1) #Calculating output voltage",
"Vo=Vo*1000.0 #Calculating output voltage",
"",
"#Result:",
"print('Vo= %.1f mV'%Vo)",
"",
"#Part B",
"#Variable Declaration:",
"Iosch= 10.0*10**-9 #Ios current in ampere",
"",
"#Calculations:",
"Vosch=Iosch*Rf #Calculating output voltage",
"Vosch=Vosch*1000.0 #Calculating output voltage",
"",
"#Results:",
"print('\\nChange in Vo= %.1f mV'%Vosch)",
"print('\\n Worst case drift is 26.5 mV or -26.5 mV')"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Vo= 16.5 mV",
"",
"Change in Vo= 10.0 mV",
"",
" Worst case drift is 26.5 mV or -26.5 mV"
]
}
],
"prompt_number": 1
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No.3.8, Page No: 125<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"f=1000.0 # frequency in hertz",
"#from graph",
"gain_db=60.0 # Gain in db",
"gain=1000.0 #Gain",
"",
"#Result:",
"print('Gain= %d'%gain)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Gain= 1000"
]
}
],
"prompt_number": 19
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.9, Page No: 126<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"riset=0.7*10**-6 #rise time in microsecond",
"",
"#Calculations:",
"bw=0.35/riset #Finding unity gain bandwidth",
"bw=bw/1000.0 #Finding unity gain bandwidth",
"",
"#Results:",
"print('Bandwidth= %d kHz'%bw)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Bandwidth= 500 kHz"
]
}
],
"prompt_number": 20
},
{
"cell_type": "markdown",
"source": [
"<h3>Page No. 3.10, Page No: 126<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variavle Declaration:",
"ugb=1.5*10**6 #Unity gain bandwidth in hertz",
"f1=2.0*10**3 #Signal frequency in hertz",
"",
"#Calculations:",
"A0=ugb/f1 #Calculating open loop DC voltage gain",
"",
"#Results:",
"print('Openloop Dc Voltage gain= %d '%A0)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Openloop Dc Voltage gain= 750 "
]
}
],
"prompt_number": 21
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.11, Page No: 134<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Voch=10.0 #Change of voltage in volt",
"slew=0.5 #Slew rate in volt per microsecond",
"",
"#Calculations:",
"time=Voch/slew #Calculating time taken for output to change by 10V ",
"",
"#Results:",
"print('Time= %d us'%time)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Time= 20 us"
]
}
],
"prompt_number": 22
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.12, Page No: 135<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"import math",
"#Part A",
"#Variable Declaration:",
"slew=0.5 #Slew rate in volt per microsecond",
"Vm=12.0 #Voltage in volt",
"",
"#calculations:",
"fmax=slew/(2.0*math.pi*Vm) #calculating frequency of maximum undistorted wave",
"fmax=fmax*1000.0 #Calculating frequency of maximum undistorted wave",
"",
"#Results:",
"print('Fmax= %.1f kHz'%fmax)",
"",
"# Part B",
"#Variable Declarations:",
"Vm1=2.0 #Voltage in volt",
"",
"#Calculations:",
"fmax1=slew/(2.0*math.pi*Vm1) #calculating frequency of maximum undistorted wave",
"fmax1=fmax1*1000.0 #calculating frequency of maximum undistorted wave",
"",
"#Results:",
"print('\\nFmax1= %.1f kHz'%fmax1)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Fmax= 6.6 kHz",
"",
"Fmax1= 39.8 kHz"
]
}
],
"prompt_number": 23
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.13, Page No: 135<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"slew=0.5 #Slew rate in volt per microsecond",
"f=10.0*10**3 #frequency in hertz",
"",
"#Calculations:",
"Vmmax=slew/(2*math.pi*f) #Calculating maximum peak to peak voltage",
"Vmmax=Vmmax*10**6 #Calculating maximum peak to peak voltage",
"",
"#Results:",
"print('Vm(max)= %.2f V'%Vmmax)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Vm(max)= 7.96 V"
]
}
],
"prompt_number": 1
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.14, Page No: 135<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"slew=0.5 #Slew rate in volt per microsecond",
"riset=4.0 #Rise time in microsecond",
"",
"print('\\nVo is greater than 1V')",
"Vswing=(0.9-0.1)*5.0 #Voltage swing in volt",
"",
"#Calculations:",
"slewreq=Vswing/riset #Calculating required slew rate",
"",
"#Results:",
"print('\\nSlew Rate Required= %d V/us'%slewreq)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"Vo is greater than 1V",
"",
"Slew Rate Required= 1 V/us"
]
}
],
"prompt_number": 25
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.15, Page No: 135<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Vch=20.0 #Change in voltage in volt",
"time=4.0 #Time in microseconds",
"",
"#Calculations:",
"slew=Vch/time #Calculating slew rate ",
"",
"#Results:",
"print('\\nSlew Rate = %d V/us'%slew)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"Slew Rate = 5 V/us"
]
}
],
"prompt_number": 26
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.16, Page No: 136<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"A=50.0 #Gain",
"slew=0.5 #Slew rate in volt per microsecond",
"Vid=20.0*10**-3 #Voltage difference in volt",
" ",
"#Calculations:",
"Vm=A*Vid #Calculating maximum voltage ",
"",
"fmax=(slew*10**6)/(2*math.pi*Vm) #calculating frequency of maximum undistorted wave ",
"fmax=fmax/1000.0 #calculating frequency of maximum undistorted wave",
"",
"#Results:",
"print('Fmax= %.1f kHz'%fmax)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Fmax= 79.6 kHz"
]
}
],
"prompt_number": 27
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.17, Page No: 136<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"slew=0.5 #Slew rate in volt per microsecond",
"f=4.0*10**4 #frequency in hertz",
"",
"#Calculations:",
"Vm=(slew*10**6)/(2*math.pi*f) #Calculating Vm",
"Vmpp=2.0*Vm/10.0 #Calculating maximum peak to peak input signal that can be applied",
"",
"#Results:",
"print('Vpeak= %.2f V'%Vm)",
"print('\\nVoltage peak-to-peak= %.3f V'%Vmpp)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Vpeak= 1.99 V",
"",
"Voltage peak-to-peak= 0.398 V"
]
}
],
"prompt_number": 28
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.18, Page No: 138<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Rf=10.0*10**3 #Resistance in ohm",
"R1=100.0 #Resistance in ohm",
"Vni=1*10**-6 #input rms noise voltage in volt",
"",
"#Calculations: ",
"Kn=1+Rf/R1 #Calculating noise gain",
"Vno=Vni*(1+Rf/R1) #Calculating output voltage",
"Vno=Vno*10**6 #Calculating output voltage",
"",
"#Results:",
"print('Output noise voltage= %d uV (rms)'%Vno)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Output noise voltage= 101 uV (rms)"
]
}
],
"prompt_number": 29
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No: 3.19, Page No: 142<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Deeclaration:",
"Rf=10.0*10**3 #Feedback resistance in ohm",
"R1=1.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"Av=-Rf/R1 #Calculating gain",
"",
"#Results:",
"print('Closed loop voltage gain= %d'%Av)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Closed loop voltage gain= -10"
]
}
],
"prompt_number": 30
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.20, Page No: 147<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"Rf=10.0*10**3 #Feedback resistance in ohm",
"R1=1.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"Av=1+ Rf/R1 #Calculating gain",
"",
"Beta=R1/(Rf+R1) #Calculating feedback factor",
"",
"#Results:",
"print('Closed loop voltage gain= %d'%Av)",
"print('\\nFeedback factor= %.3f'%Beta)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Closed loop voltage gain= 11",
"",
"Feedback factor= 0.091"
]
}
],
"prompt_number": 31
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.21, Page No:147<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"R1=10.0*10**3 #Resistance in ohm",
"R2=1.0*10**3 #Resistance in ohm",
"R3=1.0*10**3 #Resistance in ohm",
"Rf=50.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"I=1/(R2+R3) #Calculating current ",
"Vi1=I*R2 #Calculating input voltage",
"Vo=Vi1*(1+ Rf/R1) #Calculating output voltage ",
"",
"#Result:",
"print('Vout= %d V'%Vo)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Vout= 3 V"
]
}
],
"prompt_number": 32
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No: 3.22, Page No: 147<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declration:",
"Vi=0.6 #volatge in volt ",
"Vi1=0.6 #volatge in volt",
"Vi2=0.6 #volatge in volt",
"R1=10.0*10**3 #Resistance in ohm",
"Rf=20.0*10**3 #Resistance in ohm",
"RL=2.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"I1=Vi/R1 #Calculating current",
"I1=I1*1000.0 #Calculating current",
"Av=1+Rf/R1 #Calculating gain",
"Vo=Av*Vi #Calculating output voltage",
"IL=Vo/RL #Calculating load current",
"IL=IL*1000 #Calculating load current",
"",
"#By Kirchhoff's current law",
"Io=I1+IL #Calculating output current",
"",
"#Results:",
"print('\\nIo=%.2f mA'%Io)",
"print('Av=%d'%Av)",
"print('\\nVo=%.1f V'%Vo)",
"print('\\nI1=%.1f mA'%IL)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Av=3",
"",
"Vo=1.8 V",
"",
"I1=0.9 mA",
"",
"Io=0.96 mA"
]
}
],
"prompt_number": 33
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.23,Page No:151 <h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"fL=50.0 #Frequency in hertz",
"RL=3.3*10**3 #Resistance in ohm",
"Ibmax=500.0*10**-9 #Current in ampere",
"R1max=140.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"C1=1/(2*math.pi*fL*R1max/10) #Calculating value of capacitor",
"C1=C1*10**6 #Calculating value of capacitor",
"",
"C2=1/(2*math.pi*fL*RL) #Calculating value of capacitor",
"C2=C2*10**6 #Calculating value of capacitor",
"",
"#Results:",
"print('C1=%.3f uF'%C1)",
"print('\\nC2=%.2f uF'%C2)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"C1=0.227 uF",
"",
"C2=0.96 uF"
]
}
],
"prompt_number": 34
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.24, Page NO: 153<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"",
"Vbe=0.6 #Voltage Vbe in volt",
"Ibmax=500.0*10**-9 #Current in ampere",
"fL=50.0 #frequency in hertz",
"RL=3.3*10**3 #Resistance in ohm",
"Mmin=50000.0",
"",
"#Calculations:",
"R1max=0.1*Vbe/Ibmax #Calculating maximum value of the resistance R1",
"R1=R1max/2.0 #Calculating value of R1",
"R2=R1 #Value of R2 is equal to R1",
"",
"C3=1/(2*math.pi*fL*RL) #Calculaing value of capacitance",
"C3=C3*10**6 #Calculaing value of capacitance",
"",
"C2=1/(2*math.pi*fL*R2/10) #Calculaing value of capacitance",
"C2=C2*10**6 #Calculaing value of capacitance",
"",
"",
"Zinmin=(1+Mmin)*56.0*10**3 #Calculating minimum input impedance",
"Zinmin=Zinmin/10**6 #Calculating minimum input impedance",
"",
"#Results:",
"print('\\nC3=%.2f uF'%C3)",
"print('\\nC2=%.2f uF'%C2)",
"# answer in textbook is wrong",
"print('\\nZin(min)= %d Mohm'%Zinmin)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"C3=0.96 uF",
"",
"C2=0.53 uF",
"",
"Zin(min)= 2800 Mohm"
]
}
],
"prompt_number": 2
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.25, Page No: 156<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"Vo=3.0 #output voltage in volt",
"Vi=10.0*10**-3 #Input voltage in volt",
"R2=1.0*10**6 #Resistance in ohm",
"Av=300.0 #Gain",
"fL=100.0 #Frequency in hertz",
"RL=15.0*10**3 #Resistance in ohm",
"",
"#Calculations:",
"R3=R2/(Av-1) #Calculating value of resistance ",
"",
"R1=R2-R3 #Calculating value of resistance",
"C2=1/(2*math.pi*fL*R3) #Calculatinf value of capacitance",
"C2=C2*10**6 #Calculating value of capacitance",
" ",
"C3=1/(2*math.pi*fL*RL/10) #Calculating value of capacitance",
"C3=C3*10**6 #Calculating value of capacitance",
"",
"#Results:",
"print('\\nC2= %.2f uF'%C2)",
"print('\\nC3= %.2f uF'%C3)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"C2= 0.48 uF",
"",
"C3= 1.06 uF"
]
}
],
"prompt_number": 36
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.26, Page NO: 159<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"fL=20.0 #frequency in hertz",
"fH=2000.0 #frequency in hertz",
"RL=300.0 #Resistance in ohm",
"R1=1.5*10**3 #Resistance in ohm",
"R2=56*10**3 #Resistance in ohm",
"",
"#Calculations:",
"C1=1/(2*math.pi*fL*R1/10) #Calculating value of capacitance",
"",
"C1=C1*10**6 #Calculating value of capacitance",
"",
"C2=1/(2*math.pi*fL*RL) #Calculating value of capacitance",
"C2=C2*10**6 #Calculating value of capacitance",
"",
"Cf=1/(2*math.pi*fH*R2) #Calculating value of capacitance",
"Cf=Cf*10**12 #Calculating value of capacitance",
"",
"",
"#Results:",
"print('\\nC1= %d uF'%C1)",
"print('\\nC2= %.1f uF'%C2)",
"print('\\nCf= %d pF'%Cf)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"C1= 53 uF",
"",
"C2= 26.5 uF",
"",
"Cf= 1421 pF"
]
}
],
"prompt_number": 37
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.27, Page No: 162<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"import math",
"Ibmax=500.0*10**-9 #Current in ampere",
"Vcc=24.0 #Volatge Vcc in volt",
"I2=50.0*10**-6 #Current in ampere",
"Vo=6.0 #Output voltage in volt",
"Av=100.0 #Gain",
"fL=100.0 #Frequency in hertz",
"RL=5.6*10**3 #Resistance in hertz",
"",
"#Calculations:",
"I2=100.0*Ibmax #Calculating current",
"R1=Vcc/(2.0*I2) #Calculating resistance",
"R2=R1 #value of R2 is equal to R1",
"Vi=Vo/Av #Calculating input voltage",
"",
"I4=100.0*Ibmax #Calculating current",
"R4=Vi/I4 #Calculating value of resistance",
"",
"R3=118.8*10**3 #Calculating value of resistance",
"R1pR2=(R1+R2)/4.0 #Calculating parellel combination of R1 and R2",
"",
"C1=1/(2*math.pi*fL*R1pR2/10.0) #Calculating value of capacitance",
"C1=C1*10**6 #Calculating value of capacitance",
" ",
"C2=1/(2*math.pi*fL*RL/10.0) #Calculating value of capacitance",
"C2=C2*10**6 #Calculating value of capacitance",
"",
"C3=1/(2*math.pi*fL*R4) #Calculating value of capacitance",
"C3=C3*10**6 #Calculating value of capacitance",
"",
"#Results:",
"print('\\nC1= %.3f uF'%C1)",
"print('\\nC2= %.3f uF'%C2)",
"print('\\nC3= %.3f uF'%C3)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"C2= 2.842 uF",
"",
"C1= 0.133 uF",
"",
"C3= 1.326 uF"
]
}
],
"prompt_number": 3
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No. 3.28, Page No:166<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"cmrr=10**5 #Common mode rejection ratio",
"Adm=10**5 #Differential gain",
"",
"#Calculations:",
"Acm=Adm/cmrr #Calculating common mode gain",
"",
"#Results:",
"print('Common mode gain Acm= %d'%Acm)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Common mode gain Acm= 1"
]
}
],
"prompt_number": 39
},
{
"cell_type": "markdown",
"source": [
"<h3>Example No: 3.29, Page NO: 168<h3>"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"",
"#Variable Declaration:",
"R1=560.0 #Resistance value in ohm",
"R3=560.0 #Resistance value in ohm",
"Rf=5.6*10**3 #Resistance value in ohm",
"",
"R2=Rf #Value of R2 is equal to Rf",
"Vo1=-2.0 #Volatage in volt ",
"Ri=2.0*10**6 #Resistance value in ohm",
"Vo2=-1.0 #Voltage in volt",
"",
"#Calculations:",
"# Part 1",
"Ad=1+Rf/R1 #Calculating differential gain",
"",
"# Part 2",
"A=200000.0 #Gain",
"Ri1=Ri*(1+ (A*R2)/(R2+R3)) #Calculating resistance value",
"Ri1=Ri1/10**9 #Calculating resistance value",
"",
"Ri2=Ri*(1+ (A*R1)/(R1+Rf)) #Calculating resistance value ",
"Ri2=Ri2/10**9 #Calculating resistance value",
" ",
"# Part 3",
"Vid=Vo2-Vo1 #Calculating differential voltage",
"Vo=(1+Rf/R1)*Vid #Calculating output voltage",
"Vo=Vo",
"",
"#Results:",
"print('\\nAd= %d'%Ad)",
"print('\\nRi1=%.1f Gohm'%Ri1)",
"print('\\nRi2=%.2f Gohm'%Ri2)",
"print('\\nVo=%d V'%Vo)"
],
"language": "python",
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"",
"Ad= 11",
"",
"Ri1=363.6 Gohm",
"",
"Ri2=36.37 Gohm",
"",
"Vo=11 V"
]
}
],
"prompt_number": 4
},
{
"cell_type": "code",
"collapsed": true,
"input": [],
"language": "python",
"outputs": []
}
]
}
]
}