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{
"metadata": {
"name": "",
"signature": "sha256:f9475ffbc67754cff4c4dd7e2520c8d46bc60bf8586e00e3a5ba9355352315e0"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 13 - Bistable Multivibrators (Flip-Flops)"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example E1 - Pg 413"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Caption:Determine the capacitance for flip flop design and triggering frequency \n",
"#Ex13.4\n",
"R1=16.1#Resistor(in kilo ohm)\n",
"R2=27#Resistor(in kilo ohm)\n",
"t=260#time(in ns)\n",
"R=R1*R2/(R1+R2)\n",
"C=t/(0.1*R)\n",
"f=10**6/(2.3*C*R)\n",
"print '%s %.f %s %.f' %(\"Capacitance(in pF)=\",C,\"\\nFrequency(in Khz)=\",f)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Capacitance(in pF)= 258 \n",
"Frequency(in Khz)= 167\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example E4 - Pg 423 "
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Caption:Design a collector coupled bistable multivibrator\n",
"#Ex13.1\n",
"V=5.#Supply voltage(in volts)\n",
"Ic=2.#Saturated collector current(in mA)\n",
"Vce=0.2#Collector emitter voltage(in volts)\n",
"hfe=70.\n",
"Vbe=0.7#Base emitter voltage(in volts)\n",
"Vbb=-5.#Base voltage(in volts)\n",
"Rc=(V-Vce)/Ic\n",
"Ib=Ic/hfe\n",
"Vb1=Vbe-Vbb\n",
"I2=Ic/10.\n",
"R2=Vb1/I2\n",
"I2=Vb1/R2\n",
"R=(V-Vbe)/(I2+Ib)\n",
"R1=R-Rc\n",
"print '%s %.1f %.1f %.1f' %('Components required to design the circuit are resistors(in kilo ohm)=',Rc,R1,R2)\n",
"\n",
"#R1 value is corrected "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Components required to design the circuit are resistors(in kilo ohm)= 2.4 16.4 28.5\n"
]
}
],
"prompt_number": 2
}
],
"metadata": {}
}
]
}
|
