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{
"metadata": {
"name": "",
"signature": "sha256:931ccf820f91dc3bd263fe2430c73233b66e02ab90eedbd3236bc42b5727ead5"
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"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 3, Waveform generators"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex 1 - page : 145"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Given data \n",
"\n",
"R2 = 100.0 # ohm\n",
"R1 = 50.0*10**3 # ohm\n",
"Vref = 0 # V\n",
"vi = 1 # V\n",
"Vsat = 14.0 # V\n",
"# Solution \n",
"\n",
"VUT = (R2*Vsat)/(R1+R2) # V\n",
"VLT = (R2*-Vsat)/(R1+R2) # V\n",
"\n",
"# Displaying the values\n",
"\n",
"print \"The value of Upper threshold voltage = \",int(round(VUT*10**3,0)),\"mV\"\n",
"print \"The value of Lower threshold voltage = \",int(round(VLT*10**3,0)),\"mV\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The value of Upper threshold voltage = 28 mV\n",
"The value of Lower threshold voltage = -28 mV\n"
]
}
],
"prompt_number": 18
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex 2 - page : 148"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import numpy as np \n",
"# Given data\n",
"\n",
"VUT = 0\n",
"VH = 0.3\n",
"f = 10.0**3\n",
"# Solution \n",
"\n",
"VLT = VUT - VH\n",
"theta = round(np.arcsin(VH/2),1)\n",
"T = 1/f\n",
"Ttheta = theta/(2*np.pi*f) \n",
"T1 = (T/2) + Ttheta\n",
"T2 = (T/2) - Ttheta \n",
"\n",
"# Displayig the values \n",
"\n",
"print \"The value of Lower threshold voltage = \",VLT,\"V\"\n",
"print \"The value of angle theta = \",theta,\"Radian\"\n",
"print \"The value of T1 = \",round(T1*10**3,3),\"ms\"\n",
"print \"The value of T2 = \",round(T2*10**3,3),\"ms\"\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The value of Lower threshold voltage = -0.3 V\n",
"The value of angle theta = 0.2 Radian\n",
"The value of T1 = 0.532 ms\n",
"The value of T2 = 0.468 ms\n"
]
}
],
"prompt_number": 20
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex 3 - page : 152"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"# Given data \n",
"\n",
"f = 100\n",
"C = 0.1*10**-6\n",
"\n",
"# Solution \n",
"\n",
"R = 1/(math.sqrt(6)*2*math.pi*(10**-7)*100)\n",
"R1 = 10*R\n",
"Rf = 29*R1\n",
"\n",
"# Displaying the solutions \n",
"\n",
"print \"The value of R1 =\",int(round(R1*10**-3,0)),\"Kilo Ohms\"\n",
"print \"The value of Rf =\",int(round(Rf*10**-3,0)),\"Kilo Ohms\"\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The value of R1 = 65 Kilo Ohms\n",
"The value of Rf = 1884 Kilo Ohms\n"
]
}
],
"prompt_number": 21
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex 4 - page 158"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"# Given data \n",
"\n",
"f = 50\n",
"C = 0.2*10**-6\n",
"\n",
"# Solution \n",
"\n",
"R = 1/(math.sqrt(6)*2*math.pi*(10**-7)*100)\n",
"R1 = 10*R\n",
"Rf = 29*R1\n",
"\n",
"# Displaying the solutions \n",
"\n",
"print \"The value of R1 is %0.2f kohms\"%(R1*10**-3)\n",
"print \"The value of Rf is %0.2f kohms\"%(Rf*10**-3)\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The value of R1 is 64.97 kohms\n",
"The value of Rf is 1884.27 kohms\n"
]
}
],
"prompt_number": 27
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex 5 - page 162"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"from numpy import pi, arcsin \n",
"# Given data\n",
"\n",
"VUT = 0\n",
"VH = 0.5\n",
"f = 1000\n",
"# Solution \n",
"\n",
"VLT = VUT - VH\n",
"theta = round(arcsin(VH/2),1)\n",
"T = 1/f\n",
"Ttheta = theta/(2*pi*f) \n",
"T1 = (T/2) + Ttheta\n",
"T2 = (T/2) - Ttheta \n",
"\n",
"# Displayig the values \n",
"\n",
"print \"The value of Lower threshold voltage = \",VLT,\"V\"\n",
"print \"The value of angle theta = \",theta,\"Radian\"\n",
"print \"The value of T1 = \",round(T1*10**3,3),\"ms\"\n",
"print \"The value of T2 = \",round(T2*10**3,3),\"ms\"\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The value of Lower threshold voltage = -0.5 V\n",
"The value of angle theta = 0.3 Radian\n",
"The value of T1 = 0.048 ms\n",
"The value of T2 = -0.048 ms\n"
]
}
],
"prompt_number": 29
}
],
"metadata": {}
}
]
}
|
