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{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 10 : The Unijunction Transistor"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.1, Page No.249"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# stand off and peak point voltage\n",
"\n",
"import math\n",
"#Variable declaration\n",
"Vbb=20 # in V\n",
"eta=0.6 # instrinsic stand off ratio \n",
"Vb=0.7 # in V\n",
"\n",
"#Calculations\n",
"sov=eta*Vbb # Stand off voltage\n",
"Vp=(eta*Vbb)+Vb;\n",
"\n",
"print(\"(i). Stand off voltage,(V) = %.f \"%sov)\n",
"print(\"(ii). Peak point voltage,Vp(V) = %.1f\"%Vp)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"(i). Stand off voltage,(V) = 12 \n",
"(ii). Peak point voltage,Vp(V) = 12.7\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.2, Page No. 249"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# time period\n",
"\n",
"import math\n",
"#Variable declaration\n",
"Vbb=20.0 # in V\n",
"C=100.0 # in micro-farad\n",
"R=100.0 # in kilo-ohms\n",
"Vp=10.0 # in V\n",
"\n",
"#Calculations\n",
"eta=Vp/Vbb # instrinsic stand off ratio \n",
"T= ((C*10**-12*R*10**3 *math.log(1/(1-eta))))*10**7 #in micro-seconds\n",
"\n",
"#Result\n",
"print(\"time period of the saw tooth waveform generated is ,(micro-seconds)= %.2f\"%T)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"time period of the saw tooth waveform generated is ,(micro-seconds)= 69.31\n"
]
}
],
"prompt_number": 4
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10.3, Page No. 249"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# resistance\n",
"\n",
"import math\n",
"#variable declaration\n",
"eta=0.6 # instrinsic stand off ratio \n",
"Rbb=10 # interbase resistance in k-ohm\n",
"\n",
"#Calculations\n",
"Rb1=eta*Rbb\n",
"Rb2=Rbb-Rb1\n",
"\n",
"#Result\n",
"print(\"Resistance,Rb1(k-ohm) = %.f\"%Rb1)\n",
"print(\"Resistance,Rb1(k-ohm) = %.f\"%Rb2)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Resistance,Rb1(k-ohm) = 6\n",
"Resistance,Rb1(k-ohm) = 4\n"
]
}
],
"prompt_number": 7
}
],
"metadata": {}
}
]
}
|
