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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 5: Sequential Circuits, Flip flops & Multivibrators"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 1, Page 183"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Required time=1.1 milli-seconds\n"
]
}
],
"source": [
"#Variable declaration\n",
"R=10*10**3;#external resistance ohm#\n",
"C=0.1*10**-6;#timing capacitor Farad#\n",
"\n",
"#Calculations\n",
"T=1.1*R*C;#time for which output remains high in monostable multivibrator using IC 555 timer#\n",
"\n",
"#Result\n",
"print \"Required time=%.1f milli-seconds\"%(T*10**3)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 2, Page 183"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"frequency=48.10 KH\n",
"duty cycle=33.33 percent\n"
]
}
],
"source": [
"#Variable declaration\n",
"Ra=10*10**3 #ohms\n",
"Rb=10*10**3 #ohms\n",
"C=.001*10**-6 #F\n",
"\n",
"#Calculations&Results\n",
"T1=.693*(Ra+Rb)*C;#charging time constant#\n",
"T2=.693*Rb*C;#discharging time constant#\n",
"T=T1+T2;#total time#\n",
"f=1./T;#frequency#\n",
"print 'frequency=%.2f KH'%(f*10**-3);\n",
"D=T2/T;#duty cycle#\n",
"D=D*100\n",
"print 'duty cycle=%.2f percent'%D\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 3, Page 184"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"frequency=1.077 KH\n",
"duty cycle=24.63 percent\n"
]
}
],
"source": [
"#Variable declaration\n",
"Ra=6.8*10**3 #ohms\n",
"Rb=3.3*10**3 #ohms\n",
"C=.1*10**-6 #F\n",
"\n",
"#Calculations&Results\n",
"T1=.693*(Ra+Rb)*C;#charging time constant#\n",
"T2= .693*Rb*C;#discharging time constant#\n",
"T=T1+T2;#total time#\n",
"f=1/T#frequency#\n",
"print 'frequency=%.3f KH'%(f*10**-3)\n",
"D=T2/T;#duty cycle#\n",
"D=D*100\n",
"print 'duty cycle=%.2f percent'%D"
]
}
],
"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,
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|
