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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 13: Networks"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 13.1: Calculate_R9_R7_R8_C4.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Chapter 13\n",
"//page no 568\n",
"//given\n",
"clc;\n",
"clear all;\n",
"Vcc=5; //in V\n",
"Vf=1.5; //in V\n",
"If=60; //in mA\n",
"B=3.97;\n",
"N=3;\n",
"R9=(Vcc-Vf)*(B+1)/If/10^-3;\n",
"printf('\n R9 = %0.0f ohm\n',R9);\n",
"R7=R9/2/B-3/N;\n",
"printf('\n R7 = %0.1f ohm\n',R7);\n",
"R8=R9/2/B;\n",
"printf('\n R8 = %0.1f ohm\n',R8);\n",
"C4=2*10^-9/R8;\n",
"printf('\n C4 = %0.0f pF',C4*10^12);\n",
""
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 13.2: Calculate_Led_If_R3_C4.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Chapter 13\n",
"//page no 569\n",
"//given\n",
"clc;\n",
"clear all;\n",
"Vu3=1.24; //in V\n",
"Vbeq3=0.7; //in V\n",
"Vbeq4=0.7; //in V\n",
"R5=17.5; //in Ohm\n",
"R6=17.5; //in Ohm\n",
"Voh=5; //in V\n",
"Vol=0; //in V\n",
"If=(Vu3-Vbeq3)/R5+(Vu3-Vbeq4)/R6;\n",
"printf('\n If= %0.1f mA\n',If*1000);\n",
"R3=(Voh-Vol)/If;\n",
"printf('\n R3= %0.0f ohm\n',R3);\n",
"C4=2*10^-9/R3;\n",
"printf('\n C4= %0.0f pF\n',C4*10^12);\n",
"//Chapter 13\n",
"//page no 581\n",
"//given\n",
"disp('Page number 581 again Example 13-2 (numbering mistake)')\n",
"Er=4.9;\n",
"h=5; //in mils\n",
"w=10; //in mils\n",
"t=0.5; //in mils\n",
"Z=60/sqrt(0.475*Er+0.67)*log(4*h/0.67/(0.8*w+t));\n",
"printf('\n Z = %0.1f ohm\n',Z);\n",
"tpd=1.017*sqrt(0.475*Er+0.67);\n",
"printf('\n tpd = %0.2f ns/ft\n',tpd);\n",
"Tpd=tpd*1000/12; //converted into ps/in\n",
"printf('\n tpd = %0.2f ps/in\n',Tpd);\n",
"Co=Tpd/Z;\n",
"printf('\n Co = %0.1f pF/in\n',Co);\n",
""
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 13.3: Characteristic_impedance_and_propagation_delay.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Chapter 13\n",
"//page no 583\n",
"//given\n",
"clc;\n",
"clear all;\n",
"Er=4.7;\n",
"b=10; //in mils\n",
"w=4; //in mils\n",
"t=0.5; //in mils\n",
"Z=60/sqrt(Er)*log(4*b/0.67/%pi/(0.8*w+t));\n",
"printf('\n Z = %0.2f ohm\n',Z);\n",
"tpd=1.017*sqrt(Er);\n",
"printf('\n tpd = %0.1f ns/ft\n',tpd);\n",
"Tpd=tpd*1000/12; //converted into ps/in\n",
"printf('\n Also,tpd = %0.0f ps/in\n',Tpd);//answer is slightly different due to rounding off "
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Scilab",
"language": "scilab",
"name": "scilab"
},
"language_info": {
"file_extension": ".sce",
"help_links": [
{
"text": "MetaKernel Magics",
"url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
}
],
"mimetype": "text/x-octave",
"name": "scilab",
"version": "0.7.1"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
|
