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{
"metadata": {
"name": "",
"signature": "sha256:8ef023228932ba7c44f0f72b79793f31a32f8ea67eae875510cf71ee015fc22c"
},
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 8 FREQUENCY EFFECTS IN AMPLIFIERS"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 8.6 , Page no:242"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"from __future__ import division\n",
"\n",
"#initialisation of variables\n",
"hie=1000 #\u2126\n",
"hfe=75 #\u2126\n",
"Av=50\n",
"Rl=10000 #k\u2126\n",
"hie2=300 #\u2126\n",
"hfe2=100 #\u2126\n",
"Re=1000 #k\u2126\n",
"\n",
"#CALCULATIONS\n",
"Req=Av*(hie/hfe) #\u2126\n",
"Rc=Req*Rl/(Rl-Req) #k\u2126\n",
"wL=2*3.14*200\n",
"Ce=(hie2+(hfe2+1)*Re)/(wL*Re*hie2)*10**6\n",
"Av1=(hfe*Req)/(hie+(hfe+1)*Re)\n",
"\n",
"#RESULTS\n",
"print\"The value of Req=\",round(Req,3),\"Ohm\";\n",
"print\"The value of Rc=\",round(Rc,3),\"Ohm\";\n",
"print\"The value of Ce=\",round(Ce,3),\"mF\";\n",
"print\"The value of Av=\",round(Av1,3);"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The value of Req= 666.667 Ohm\n",
"The value of Rc= 714.286 Ohm\n",
"The value of Ce= 268.843 mF\n",
"The value of Av= 0.649\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 8.8 , Page no:244"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"from __future__ import division\n",
"\n",
"#initialisation of variables\n",
"hie2=1500 #\u2126\n",
"Rb2=5000 #k\u2126\n",
"Z01=10\n",
"Av=7881.3\n",
"\n",
"#CALCULATIONS\n",
"C2=1*10**-6 \n",
"Zin2=(hie2*Rb2/(hie2+Rb2))\n",
"fl=1/(2*3.14*C2*(Zin2+Z01*10**3))\n",
"\n",
"#RESULTS\n",
"print\"The value of Zin2=\",round(Zin2,3),\"Ohm\";\n",
"print\"The value of fl=\",round(fl,3),\"Hz\";"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The value of Zin2= 1153.846 Ohm\n",
"The value of fl= 14.276 Hz\n"
]
}
],
"prompt_number": 2
}
],
"metadata": {}
}
]
}
|
