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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 8:Signal Conditioning"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example:8.1,Page No:491"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"total voltage gain = 138 dB\n"
]
}
],
"source": [
"import math\n",
"\n",
"#variable declaration\n",
"v1 = 100; #first stage voltage gain \n",
"v2 = 200; #second stage voltage gain\n",
"v3 = 400; #third stage voltage gain\n",
"\n",
"#calculations\n",
"V1 = 20*math.log10(v1); #first stage voltage gain in dB\n",
"V2 = 20*math.log10(v2); #second stage voltage gain in dB\n",
"V3 = 20*math.log10(v3); #third stage voltage gain in dB\n",
"V = V1+V2+V3; #total voltage gain in dB\n",
"\n",
"#result\n",
"print'total voltage gain = %d'%V,'dB';"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example:8.2,Page No:491"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"total power gain 73.86 dB\n",
"resultant power gain 63.86 dB\n"
]
}
],
"source": [
"import math\n",
"\n",
"#variable declaration\n",
"G = 30; #absolute power gain \n",
"n = 5; #number of stages\n",
"G1 = 10; #negative feedback gain in dB\n",
"\n",
"#calculations\n",
"p1 = 10*math.log10(G); #power gain of first stage in dB\n",
"pt = n*p1; #total power gain in dB\n",
"pr = pt-G1; #resultant power gain with negative feedback in dB\n",
"\n",
"#result\n",
"print'total power gain %2.2f'%pt,'dB';\n",
"print'resultant power gain %2.2f'%pr,'dB';"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython2",
"version": "2.7.6"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
|
