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diff --git a/Linear_Integrated_Circuits_by_J._B._Gupta/chapter11_2.ipynb b/Linear_Integrated_Circuits_by_J._B._Gupta/chapter11_2.ipynb new file mode 100755 index 00000000..9008b311 --- /dev/null +++ b/Linear_Integrated_Circuits_by_J._B._Gupta/chapter11_2.ipynb @@ -0,0 +1,247 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter- 11 : Voltage Regulators" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 11.1 - Page No 337\n", + " " + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from math import sqrt\n", + "# Given data\n", + "I_dc=300 # in mA\n", + "C=200 # in micro F\n", + "V_max= 24 # in volt\n", + "V_r_rms= 2.4*I_dc/C # in volt\n", + "V_r_peak= sqrt(3)*V_r_rms # in volt\n", + "V_dc= V_max-V_r_peak # in volt\n", + "V_in_low= V_max-V_r_peak # in volt\n", + "print \"Minimum input voltage = %0.2f volt\" %V_in_low" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Minimum input voltage = 17.76 volt\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 11.2 - Page No 337\n", + " " + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "I_L= 0.5 # in amp\n", + "R_L=25 # in ohm\n", + "V_R=12 # in volt (since using 7812 voltage regulator)\n", + "V_L= I_L*R_L \n", + "R=V_R/I_L # in ohm\n", + "print \"Resistance required = %0.f ohm\" %R\n", + "V_out= V_R+V_L # in volt\n", + "print \"Output voltage = %0.1f volt\" %V_out\n", + "V_in= V_out+2 # in volt\n", + "print \"Input voltage = %0.1f volt\" %V_in" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Resistance required = 24 ohm\n", + "Output voltage = 24.5 volt\n", + "Input voltage = 26.5 volt\n" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 11.3 - Page No 337\n", + " " + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 240 # in ohm\n", + "R2= 1.2 # in kohm\n", + "R2=R2*10**3 # in ohm\n", + "V_out= 1.25*(1+R2/R1) # in volt\n", + "print \"Regulated output voltage = %0.1f volt\" %V_out" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Regulated output voltage = 7.5 volt\n" + ] + } + ], + "prompt_number": 4 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 11.4 - Page No 337\n", + " " + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 40 # in ohm\n", + "I_Q= 10 # in mA\n", + "I_Q=I_Q*10**-3 # in amp\n", + "V_REF= 15 # in volt\n", + "# When R2 is set at minimum i.e.\n", + "R2= 0 # in ohm\n", + "V_out= (1+R2/R1)*V_REF + I_Q*R2 # in volt\n", + "print \"Minimum output voltage = %0.f volt\" %V_out\n", + "# When R2 is set at maximum i.e.\n", + "R2= 200 # in ohm\n", + "V_out= (1+R2/R1)*V_REF + I_Q*R2 # in volt\n", + "print \"Minimum output voltage = %0.f volt\" %V_out" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Minimum output voltage = 15 volt\n", + "Minimum output voltage = 92 volt\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 11.5 - Page No 350\n", + " " + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 2.5 # in kohm\n", + "R1= R1*10**3 # in ohm\n", + "R2= 1 # in kohm\n", + "R2= R2*10**3 # in ohm\n", + "V_REF= 1.25 # in volt\n", + "I= V_REF/R2 # in amp\n", + "# This current also flows through R1. So the output voltage\n", + "V_out= I*(R1+R2) # in volt\n", + "print \"Output voltage = %0.3f volt\" %V_out" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Output voltage = 4.375 volt\n" + ] + } + ], + "prompt_number": 7 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 11.6 - Page No 350\n", + " " + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 3 # in kohm\n", + "R1= R1*10**3 # in ohm\n", + "R2= 1 # in kohm\n", + "R2= R2*10**3 # in ohm\n", + "V_REF= 1.25 # in volt\n", + "V_in=20 # in volt\n", + "V_out= V_REF*(R1+R2)/R2 # in volt\n", + "D=V_out/V_in*100 # in percent\n", + "print \"Duty cycle = %0.f %%\" %D" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Duty cycle = 25 %\n" + ] + } + ], + "prompt_number": 8 + } + ], + "metadata": {} + } + ] +}
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