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{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 6: Signal Generators"
]
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.1 Page No 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"R1 = 100*10**3 \n",
"R2 = 86*10**3 \n",
"Vsatp = 15.0\n",
"Vsatm = -15.0 #Saturation voltages\n",
"\n",
"#calculation\n",
"Vut = (R2 * Vsatp)/(R1 + R2)\n",
"Vlt = (R2 * Vsatm)/(R1 + R2)\n",
"\n",
"#Result\n",
"print\" Upper Threshold Voltage = \",round(Vut,0),\"V\"\n",
"print\" Lower Threshold Voltage = \",round(Vlt,0),\"V\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Upper Threshold Voltage = 7.0 V\n",
" Lower Threshold Voltage = -7.0 V\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.2 Page No 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"Rf = 100*10**3 #Feedback Resistance\n",
"C = 0.1*10**-6 \n",
"\n",
"#calculation\n",
"T = 2 * Rf * C\n",
"\n",
"#result\n",
"print\" Period \", T,\"s or \",T*1000,\"ms\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Period 0.02 s or 20.0 ms\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.3 Page No 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"T = 20*10**-3 #Period \n",
"\n",
"#calculation\n",
"f = 1 / T\n",
"\n",
"#Result\n",
"print\" Frequency = \", f,\"Hz\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Frequency = 50.0 Hz\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.5 Page No 159"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"Rf = 100*10**3 #Feedback Resistance\n",
"C = 0.1*10**-6 \n",
"\n",
"#Calculation\n",
"t = (Rf * C)/ 5.0 \n",
"\n",
"#Result\n",
"print\" Duration of output pulse of one-shot = \", t ,\"sec or\",t*1000,\"ms\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Duration of output pulse of one-shot = 0.002 sec or 2.0 ms\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.6 Page No 162"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"Vsatm = -13.8 \n",
"Vut = 5.0 #Upper Threshold Voltage\n",
"R = 10*10**3 \n",
"f = 1000.0 #Frequency\n",
"C = 0.05*10**-6 \n",
"\n",
"#calculation\n",
"p = -Vsatm / Vut \n",
"pR = round(p,1) * R \n",
"Ri = p / (4*f*C) \n",
"\n",
"#Result\n",
"print\" Value of p = \", p \n",
"print\" Value of pR =\", pR/1000,\"kohm\"\n",
"print\" Value of Ri = \", round(Ri/1000,0),\"kohm\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Value of p = 2.76\n",
" Value of pR = 28.0 kohm\n",
" Value of Ri = 14.0 kohm\n"
]
}
],
"prompt_number": 14
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.7 Page No 163"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"p = 2.8 \n",
"Vsatm = -13.8 \n",
"Ri = 28*10**3 \n",
"C = 0.05*10**-6\n",
"\n",
"#Calculation\n",
"Vut = - ((Vsatm+0.6)/p)\n",
"f = p / (2*Ri*C)\n",
"\n",
"#Result\n",
"print\" Peak Voltage = \", round(Vut,2),\"V\"\n",
"print\" frequency = \", f ,\"Hz\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Peak Voltage = 4.71 V\n",
" frequency = 1000.0 Hz\n"
]
}
],
"prompt_number": 7
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.8 Page No 167"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"#Checking Frequency value\n",
"Ri = 10*10**3 \n",
"Ci = 0.1*10**-6 \n",
"Ei = 1.0 \n",
"Vref = 10.0 \n",
"\n",
"#Calculation\n",
"f = Ei / (Ri*Ci*Vref) \n",
"\n",
"#Result\n",
"print\" Frequency is \", f,\"Hz\"\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Frequency is 100.0 Hz\n"
]
}
],
"prompt_number": 9
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.9 Page No 168"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"Ri = 10*10**3 #Resistance\n",
"Ci = 0.1*10**-6 \n",
"Ei = 2.0 \n",
"Vref = 2.0 \n",
"\n",
"#Calculation\n",
"f = Ei / (Ri*Ci*Vref) \n",
"\n",
"#Result\n",
"print \" New Frequency of oscillation is \", f/1000 ,\"KHz\"\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Frequency is 200.0 Hz. So It means Frequency is doubled.\n"
]
}
],
"prompt_number": 18
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.10 Page no 168"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"Vref1 = 10.0 \n",
"Vref2 = 5.0 \n",
"\n",
"\n",
"#Calculation\n",
"f1 =1000/Vref1\n",
"f2 = 1000/Vref2 \n",
"\n",
"#Result\n",
"print\"For Vref=10V, frequency is\",f1,\"Hz and For Vref=5V, frequency is\",f2,\"Hz\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"For Vref=10V, frequency is 100.0 Hz and For Vref=5V, frequency is 200.0 Hz\n"
]
}
],
"prompt_number": 31
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.11 Page no 172"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"V=5 #Peak voltage\n",
"f=1 #Khz frequency\n",
"Vref=5 #V\n",
"C=0.01*10**-6 #Capacitance\n",
"\n",
"#Calculation\n",
"Ri=1/(4*f*1000*C)\n",
"\n",
"#Result\n",
"print\"Value of Ri is\",Ri/1000,\"Kohm\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Value of Ri is 25.0 Kohm\n"
]
}
],
"prompt_number": 33
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.12 Page No 175"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"Ei = 1.0 \n",
"#Angle given in degree\n",
"t1 = 45.0 \n",
"t2 = 90.0\n",
"t3 = 225.0\n",
"t4 = 405.0\n",
"\n",
"#Calculation\n",
"import math\n",
"Vang1 = (20*10**-3)*t1 \n",
"Vang2 = (20*10**-3)*t2 \n",
"Vang3 = (20*10**-3)*t3 \n",
"Vang4 = (20*10**-3)*t4\n",
"Vo1 = Ei*math.sin(t1*3.14/180.0)\n",
"Vo2 = Ei*math.sin(t2*3.14/180.0)\n",
"Vo3 = Ei*math.sin(t3*3.14/180.0)\n",
"Vo4 = Ei*math.sin(t4*3.14/180.0)\n",
"\n",
"#Result\n",
"print\" Input Voltages are \", Vang1,\"V, \",Vang2,\"V ,\",Vang3,\"V,\",Vang4 , \"V\"\n",
"print\" Output Voltages are \", round(Vo1,3),\"V,\",round(Vo2,3),\"V,\",round(Vo3,3),\"V,\",round(Vo4,3),\"V\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Input Voltages are 0.9 V, 1.8 V , 4.5 V, 8.1 V\n",
" Output Voltages are 0.707 V, 1.0 V, -0.706 V, 0.705 V\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.13 Page No 178"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Given\n",
"R1 = 10*10**3 \n",
"R2 = 100*10**3 \n",
"C = 0.025*10**-6\n",
"\n",
"#Calculation\n",
"f1 = 1 / (4*R1*C) \n",
"f2 = 1 / (4*R2*C) \n",
"\n",
"#Result\n",
"print\" Frequency when Ri is 10KiloOhm is \" , f1/1000.0,\"KHz\"\n",
"print\" Frequency when Ri is 100KiloOhm is \" , f2,\"Hz\"\n",
" "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Frequency when Ri is 10KiloOhm is 1.0 KHz\n",
" Frequency when Ri is 100KiloOhm is 100.0 Hz\n"
]
}
],
"prompt_number": 19
}
],
"metadata": {}
}
]
}
|
