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{
"metadata": {
"name": "",
"signature": "sha256:611418a55a1ce6f7d6191bc684572e25d4bc1141f66c946bcb6af8a7291dd55c"
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter12-The 555 timer"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex1-pg220"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"##Ex:12.1\n",
"import math\n",
"C=100.*10**-9;\n",
"t_on=10.*10**-3;\n",
"R=(t_on/(1.1*C))/1000.;\n",
"print'%s %.2f %s'%(\"R= \",R,\" kohm\");"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"R= 90.91 kohm\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex2-pg220"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"##Ex:12.2\n",
"import math\n",
"C=100.*10**-6;\n",
"t_on=60.;\n",
"R=(t_on/(1.1*C))/1000.;\n",
"print'%s %.2f %s'%(\"R= \",R,\" kohm\");"
],
"language": "python",
"metadata": {},
"outputs": []
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex3-pg223"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"##Ex:12.3\n",
"import math\n",
"##R1=R2=R\n",
"prf=10.;\n",
"C=1.*10**-6;\n",
"R=0.48/(prf*C);\n",
"print'%s %.2f %s'%(\"R= \",R,\" ohm\");"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"R= 48000.00 ohm\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex4-pg223"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"##Ex:12.4\n",
"import math\n",
"prf=50.;\n",
"C=100*10**-9;\n",
"R=0.72/(prf*C);##in ohms\n",
"print'%s %.2f %s'%(\"R= \",R/1000,\" kohm\");"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"R= 144.00 kohm\n"
]
}
],
"prompt_number": 3
}
],
"metadata": {}
}
]
}
|
