Added(A)/Deleted(D) following books

 A  Electronic_Devices_and_Circuits_by_J._Paul/Ch1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch10.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch11.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch12.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch13.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch2.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch3.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch4.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch5.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch6.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch7.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch8.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch9.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4CollCurr.png
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4MaxNBasRes.png
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4saturationMode.png
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter10_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter11_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter12.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter13_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter14_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter15_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter17_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter20_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter23_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter2_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter3_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter4_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter5_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter7_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter8_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/Chapter9_1.ipynb
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/screenshots/EnergyLoadnMassCurve_1.png
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/screenshots/loadCurve2_1.png
A  Generation_Of_Electrical_Energy_by_B._R._Gupta/screenshots/loadDurnECur_1.png

1 files changed, 349 insertions, 0 deletions

diff --git a/Electronic_Devices_and_Circuits_by_J._Paul/Ch12.ipynb b/Electronic_Devices_and_Circuits_by_J._Paul/Ch12.ipynb
new file mode 100644
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+++ b/Electronic_Devices_and_Circuits_by_J._Paul/Ch12.ipynb
@@ -0,0 +1,349 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 12 - Power Electronic devices "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 553 example 1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "source resistance   =   111.87 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt\n",
+    "slope1=130\n",
+    "trivol=15##volt\n",
+    "d=0.5##watts\n",
+    "ig=sqrt(d/slope1)\n",
+    "vg=slope1*ig\n",
+    "r=(trivol-vg)/ig\n",
+    "print \"source resistance   =   %0.2f\"%((r)),\"ohm\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 553 example 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "current   =   0.010 ampere\n",
+      "input current less than required current\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import exp\n",
+    "latcur=50*10**-3##ampere\n",
+    "durpul=50*10**-6##second\n",
+    "induct=0.5##henry\n",
+    "r=20##ohm\n",
+    "voltag=100##volt\n",
+    "w=induct/r\n",
+    "inpcur=-(voltag/r)*((1)-exp(-durpul/w))\n",
+    "print \"current   =   %0.3f\"%(abs(inpcur)),\"ampere\"\n",
+    "print \"input current less than required current\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 554 example 3"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "min duration   =   4.00e-06 second\n"
+     ]
+    }
+   ],
+   "source": [
+    "latcur=4*10**-3##ampere\n",
+    "induct=0.1##henry\n",
+    "voltag=100##volt\n",
+    "durmin=induct*latcur/voltag\n",
+    "print \"min duration   =   %0.2e\"%((durmin)),\"second\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 554 example 4"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "source resistance   =   2000.00 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "slope1=3*10**3\n",
+    "egs=10##volt\n",
+    "d=0.012##watts\n",
+    "ig=sqrt(d/slope1)\n",
+    "vg=slope1*ig\n",
+    "r=(egs-vg)/ig\n",
+    "\n",
+    "print \"source resistance   =   %0.2f\"%((r)),\"ohm\"##it is not given in the book"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 554 example 5"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "resistance   =   14.00 ohm\n",
+      "frequency   =   18750.00 hertz\n"
+     ]
+    }
+   ],
+   "source": [
+    "slope1=16\n",
+    "durmax=4*10**-6##second\n",
+    "curmin=500*10**-3##ampere\n",
+    "voltag=15##volt\n",
+    "#(1) resistance\n",
+    "vg=slope1*curmin\n",
+    "r=(voltag-vg)/curmin\n",
+    "#(2)\n",
+    "d=vg*curmin\n",
+    "freque=0.3/(d*durmax)\n",
+    "print \"resistance   =   %0.2f\"%((r)),\"ohm\"\n",
+    "print \"frequency   =   %0.2f\"%((freque)),\"hertz\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 555 example 6"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "change of voltage   =   800.00 volt per microsecond\n"
+     ]
+    }
+   ],
+   "source": [
+    "c1=20*10**-12##farad\n",
+    "limcur=16*10**-3##ampere\n",
+    "w=(limcur/c1)*10**-6##convert second to microsecond\n",
+    "print \"change of voltage   =   %0.2f\"%((w)),\"volt per microsecond\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 555 example 7"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "current   =   2121.32 ampere\n",
+      "current   =   45000.00 ampere square second\n"
+     ]
+    }
+   ],
+   "source": [
+    "ratcur=3000##ampere\n",
+    "freque=50##hertz\n",
+    "i=sqrt(ratcur**2/2)\n",
+    "print \"current   =   %0.2f\"%((i)),\"ampere\"\n",
+    "i=((ratcur)/sqrt(2))**2/(2*freque)\n",
+    "print \"current   =   %0.2f\"%((i)),\"ampere square second\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 556 example 9"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "max limit resistance   =   1410000.00 ohm\n",
+      "min limit resistance   =   2650.00 ohm\n",
+      "resistance   =   4.67e+04 ohm\n",
+      "rb1   =   100.00 ohm\n",
+      "rb2   =   653.59 ohm\n",
+      "peak voltage   =   15.90 volt\n"
+     ]
+    }
+   ],
+   "source": [
+    "from __future__ import division\n",
+    "from math import log\n",
+    "voltag=30##volt\n",
+    "w=0.51\n",
+    "i1=10*10**-6##ampere\n",
+    "v1=3.5##volt\n",
+    "curen1=10*10**-3##ampere\n",
+    "freque=60##hertz\n",
+    "tridun=50*10**-6##second\n",
+    "pinvol=w*voltag+0.6\n",
+    "r=(voltag-pinvol)/i1\n",
+    "print \"max limit resistance   =   %0.2f\"%((r)),\"ohm\"\n",
+    "r=(voltag-v1)/(curen1)\n",
+    "print \"min limit resistance   =   %0.2f\"%((r)),\"ohm\"\n",
+    "capac1=0.5*10**-6##farad\n",
+    "r=(1/freque)*(1/(capac1*log(1/(1-w))))\n",
+    "print \"resistance   =   %0.2e\"%((r)),\"ohm\"\n",
+    "rb2=10**4/(w*voltag)\n",
+    "rb1=tridun/capac1\n",
+    "print \"rb1   =   %0.2f\"%((rb1)),\"ohm\"\n",
+    "print \"rb2   =   %0.2f\"%((rb2)),\"ohm\"\n",
+    "print \"peak voltage   =   %0.2f\"%((pinvol)),\"volt\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 557 example 10"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "voltage   =   7.00 volt\n",
+      "this voltage makes to off\n"
+     ]
+    }
+   ],
+   "source": [
+    "re=1*10**3##ohm\n",
+    "i1=5*10**-3##ampere\n",
+    "\n",
+    "voltag=re*i1+2\n",
+    "print \"voltage   =   %0.2f\"%((voltag)),\"volt\"\n",
+    "\n",
+    "\n",
+    "print \"this voltage makes to off\""
+   ]
+  }
+ ],
+ "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": "2.7.9"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}