{ "metadata": { "name": "", "signature": "sha256:8ef023228932ba7c44f0f72b79793f31a32f8ea67eae875510cf71ee015fc22c" }, "nbformat": 3, "nbformat_minor": 0, "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": {} } ] }