Added(A)/Deleted(D) following books

 A  Heat_Transfer_Principles_And_Applications_by_Dutta/README.txt
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch10.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch11.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch2.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch3.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch4.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch5.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch6.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch7.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch8.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch9.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/screenshots/10.png
A  Heat_Transfer_Principles_And_Applications_by_Dutta/screenshots/5.png
A  Heat_Transfer_Principles_And_Applications_by_Dutta/screenshots/51.png
A  Heat_Transfer_in_SI_units_by_Holman/Chapter1.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter10.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter11.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter2.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter4.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter5.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter6.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter7.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter8.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter9.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/README.txt
A  Heat_Transfer_in_SI_units_by_Holman/screenshots/9.1.png
A  Heat_Transfer_in_SI_units_by_Holman/screenshots/9.2.png
A  Heat_Transfer_in_SI_units_by_Holman/screenshots/9.4.png
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter1.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter2.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter3.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter4.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter5.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter6.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter7.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter8.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter9.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/README.txt
A  Power_Electronics_Principles_and_Applications_by_Jacob/screenshots/4.png
A  Power_Electronics_Principles_and_Applications_by_Jacob/screenshots/5.png
A  Power_Electronics_Principles_and_Applications_by_Jacob/screenshots/6.png
A  sample_notebooks/AviralYadav/Chapter5.ipynb

1 files changed, 647 insertions, 0 deletions

diff --git a/Power_Electronics_Principles_and_Applications_by_Jacob/Chapter5.ipynb b/Power_Electronics_Principles_and_Applications_by_Jacob/Chapter5.ipynb
new file mode 100644
index 00000000..58305b46
--- /dev/null
+++ b/Power_Electronics_Principles_and_Applications_by_Jacob/Chapter5.ipynb
@@ -0,0 +1,647 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 5: Discrete Linear Power Amplifier"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.1,Page 215"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Id=0 from 0 to 2 so not shown in the graph\n"
+     ]
+    },
+    {
+     "data": {
+      "image/png": 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8oVgLIhWJQSTrtWwJ77xjE+KOO852j7vuOsjLcx2ZZBrVGETS0IoVMGCA7Rg3diy0auU6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\nIiIiIiIiIiIiIiIiIiIiknn+HwC9g+9EmLPsAAAAAElFTkSuQmCC\n",
+      "text/plain": [
+       "<matplotlib.figure.Figure at 0x7fb0a512a8d0>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "#finding Id vs Vgs\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "%matplotlib inline\n",
+    "import numpy as np\n",
+    "import matplotlib.pyplot as plt\n",
+    "Vth=3.6;\n",
+    "Vgs=4;#voltage\n",
+    "#volt change beyond 3.6 causes a major increase in Id as it is cut off voltage\n",
+    "\n",
+    "#result\n",
+    "print('Id=0 from 0 to 2 so not shown in the graph')\n",
+    "x=np.linspace(2,3.6,300);\n",
+    "y=(-2.5*(x-3.6))**.5;\n",
+    "plt.plot(x,y)\n",
+    "plt.xlabel('Vgs(volts)');\n",
+    "plt.ylabel('Id(amps)');\n",
+    "plt.title('Id vs Vgs');\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.2,Page 217"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "drain current is 3.8 A\n",
+      "Vth=4V is assumed\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding drain current\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "V=4.5;#voltage\n",
+    "T=25;#degreeC\n",
+    "Id=3.8;\n",
+    "\n",
+    "#result\n",
+    "print \"drain current is\",round(Id,2), \"A\"\n",
+    "print('Vth=4V is assumed')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.3,Page 219"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "MOSFET is IRF530N\n",
+      "lower limit of Vth is -4.0 V\n",
+      "upper limit of Vth is -2.0 V\n",
+      "current is 2.3 A\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding drain current of IRF530N\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "Vgs=-5;#voltage\n",
+    "Vthl=-4;\n",
+    "Vthu=-2;\n",
+    "Id=2.3;#current\n",
+    "\n",
+    "#result\n",
+    "print('MOSFET is IRF530N')\n",
+    "print \"lower limit of Vth is\",round(Vthl,2), \"V\"\n",
+    "print \"upper limit of Vth is\",round(Vthu,2), \"V\"\n",
+    "print \"current is\",round(Id,2), \"A\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example5.5,Page 225"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "resistance is 1.51 kohm\n",
+      "load voltage is 36.68 V\n",
+      "Pq is 40.02 watt\n",
+      "Ps is 82.0 watt\n",
+      "Pl is 41.97 watt\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding Pq,Pl,Ps,resistance,load voltage\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "R1=22.0;#resistance\n",
+    "Vg=3.6;#voltage\n",
+    "Vd=56.0;\n",
+    "G=.98;#gain\n",
+    "Vi=40.0;\n",
+    "Rl=8.0;#load resistance\n",
+    "Vp=36.5;\n",
+    "\n",
+    "#calculation\n",
+    "Vr=Vd-Vg;\n",
+    "Ir=Vr/R1;\n",
+    "R2=Vg/Ir;\n",
+    "Va=(R1/(R1+R2))*Vi;\n",
+    "Vl=G*Va;\n",
+    "Il=Vp/Rl;\n",
+    "Pl=Vp*4.6/4;\n",
+    "Ps=Vd*4.6/pi;\n",
+    "Pq=Ps-Pl;\n",
+    "\n",
+    "#result\n",
+    "print \"resistance is\",round(R2,2), \"kohm\"\n",
+    "print \"load voltage is\",round(Vl,2), \"V\"\n",
+    "print \"Pq is\",round(Pq,2), \"watt\"\n",
+    "print \"Ps is\",round(Ps,2), \"watt\"\n",
+    "print \"Pl is\",round(Pl,2), \"watt\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.6,Page 232"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "current is 2.45 mA\n",
+      "resistance2 is 814.815 ohm\n",
+      "pick R2=R3=820ohm R1=R4=22 kohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding resistance and current \n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "R1=22.0;#resistance\n",
+    "V1=56.0;#voltage\n",
+    "V2=2.0;#voltage\n",
+    "\n",
+    "#calculation\n",
+    "I=(V1-V2)/R1;\n",
+    "R2=V2/I;\n",
+    "\n",
+    "#result\n",
+    "print \"current is\",round(I,2), \"mA\"\n",
+    "print \"resistance2 is\",round(R2*1000,3), \"ohm\"\n",
+    "print('pick R2=R3=820ohm R1=R4=22 kohm')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.7,Page 234"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "load voltage is 10.01 V\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding load voltage \n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "Vi=350.0;#voltage\n",
+    "f=100.0;#frequency\n",
+    "Rf=10000.0;#resistance\n",
+    "Ri=520.0;\n",
+    "\n",
+    "#calculation\n",
+    "Vp=(1+(Rf/Ri))*Vi*2**.5;\n",
+    "\n",
+    "#result\n",
+    "print \"load voltage is\",round(Vp/1000,2), \"V\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.8,Page 238"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "load rms voltage is 20.0 V\n",
+      "resistance is 54.04 kohm\n",
+      "current is 1.18 mA\n",
+      "load current is 4.41 A\n",
+      "supply power is 39.3 watt\n",
+      "load power is 38.9 W\n",
+      "power is 19.552 W\n",
+      "thermal resistance is 3.01 degreC/W\n"
+     ]
+    }
+   ],
+   "source": [
+    "#designing amplifier\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "P=50.0;#power\n",
+    "Z=4.7#impedence\n",
+    "R=4.0;#resistance\n",
+    "Ta=40.0;#degreeC\n",
+    "Tj=140.0;#degreeC\n",
+    "Vd=28.0;\n",
+    "R2=22.0;\n",
+    "\n",
+    "#calculation\n",
+    "Vr=(P*R)**.5;\n",
+    "Vp=Vr*2**.5;\n",
+    "Av=-Vr/1.23;\n",
+    "Rf=-Av*Z;\n",
+    "I=(Vd-2)/R2;\n",
+    "Vm=.63*Vd;\n",
+    "Ip=Vm/R;\n",
+    "Ps=Vd*Ip/pi;\n",
+    "Pl=Ip**2/2*R;\n",
+    "Pq=round(Ps)-Pl/2;\n",
+    "Qs=(Tj-Ta)/Pq-2.1;\n",
+    "\n",
+    "#result\n",
+    "print \"load rms voltage is\",round(Vp,2), \"V\"\n",
+    "print \"resistance is\",round(Rf,2), \"kohm\"\n",
+    "print \"current is\",round(I,2), \"mA\"\n",
+    "print \"load current is\",round(Ip,2), \"A\"\n",
+    "print \"supply power is\",round(Ps,2), \"watt\"\n",
+    "print \"load power is\",round(Pl,2), \"W\"\n",
+    "print \"power is\",round(Pq,3), \"W\"\n",
+    "print \"thermal resistance is\",round(Qs,2), \"degreC/W\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.9,Page 243"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "output voltage is 129.37 mV\n",
+      "load current is 32.34 mA\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding load current,output voltage \n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "Vi=7.5e-3;#voltage\n",
+    "Ib=800e-9;#current\n",
+    "R=53.9e3;#resistance\n",
+    "\n",
+    "#calculation\n",
+    "Vo=11.5*Vi+Ib*R;\n",
+    "Id=Vo/4;\n",
+    "\n",
+    "#result\n",
+    "print \"output voltage is\",round(Vo*1000,2), \"mV\"\n",
+    "print \"load current is\",round(Id*1000,2), \"mA\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.10,Page 249"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "resistance is 0.31 ohm\n",
+      "thus pick a .33ohm rsistance\n",
+      "voltage is 0.55 V\n",
+      "power is 0.23 W\n",
+      "thermal resistance is 8.1 degreeC/W\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding resistance,voltage,power \n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "G=6.4;#A/V\n",
+    "I=5.0;#current\n",
+    "Pq=9.8;#W\n",
+    "Tj=140.0;\n",
+    "Ta=40.0;\n",
+    "R1=.33;\n",
+    "\n",
+    "#calculation\n",
+    "R=2/G;\n",
+    "Im=I/3;\n",
+    "Vr=Im*R1;\n",
+    "P=Vr*Im/4;\n",
+    "Qs=(Tj-Ta)/Pq-2.1;\n",
+    "\n",
+    "#result\n",
+    "print \"resistance is\",round(R,2), \"ohm\"\n",
+    "print('thus pick a .33ohm rsistance')\n",
+    "print \"voltage is\",round(Vr,2), \"V\"\n",
+    "print \"power is\",round(P,2), \"W\"\n",
+    "print \"thermal resistance is\",round(Qs,2), \"degreeC/W\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.11,Page 251"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "limit level current is 8.49 A\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding limit current \n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "P=200;#power\n",
+    "R=8;#ohm\n",
+    "\n",
+    "#calculation\n",
+    "Il=(P/R)**.5*2**.5;\n",
+    "Ilm=1.2*Il;\n",
+    "\n",
+    "#result\n",
+    "print \"limit level current is\",round(Ilm,2), \"A\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.12,Page 253"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "resistance is 0.1 ohm\n",
+      "power is 1.8 W\n",
+      "MOSFET power is 84.0 W\n",
+      "temperature is 468.4 degreeC\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding resistance,power,temperature \n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "I=6;#current\n",
+    "V=.6;#voltage\n",
+    "D=.5;#duty cycle\n",
+    "T=40;#temperature\n",
+    "\n",
+    "#calculation\n",
+    "Rs=V/I;\n",
+    "Pr=D*V*I;\n",
+    "Vp=28;\n",
+    "Pm=D*Vp*I;\n",
+    "Tj=T+Pm*5.1;\n",
+    "\n",
+    "#result\n",
+    "print \"resistance is\",round(Rs,2), \"ohm\"\n",
+    "print \"power is\",round(Pr,2), \"W\"\n",
+    "print \"MOSFET power is\",round(Pm,2), \"W\"\n",
+    "print \"temperature is\",round(Tj,2), \"degreeC\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.13,Page 255"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "maximum safe temperature is 89.05 degreeC\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding maximum safe temperature \n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "T=130;#temperature\n",
+    "P=19.5;#power\n",
+    "\n",
+    "#calculation\n",
+    "Ts=T-P*2.1;\n",
+    "\n",
+    "#result\n",
+    "print \"maximum safe temperature is\",round(Ts,2), \"degreeC\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 5.14,Page 257"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "reactance is 8.86 ohm\n",
+      "voltage across resistor is 10.03 V\n",
+      "-48 is the angle of the voltage in degrees\n",
+      "power dissipated by load is 12.5 watts\n",
+      "current across the resistance is 1.77 A\n",
+      "power supply is 15.8 W\n",
+      "power dissipated by transistor is 9.55 watts\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding 3 powers and current across resistance\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "V=15.0;#voltage\n",
+    "f=300.0;#frequency\n",
+    "L=4.7;#inductance\n",
+    "Vdc=28;#V\n",
+    "Pr=12.5;\n",
+    "\n",
+    "#calculation\n",
+    "Xl=2*pi*f*L;\n",
+    "Zload=sqrt(8**2+8.9**2);#magnitude of Zload\n",
+    "Vload=15.0;#msgnitude of Vload\n",
+    "Vr=Vload*8/Zload;\n",
+    "I=Vr/8*sqrt(2);\n",
+    "Psupply=Vdc*I/pi;\n",
+    "Pq=Psupply-Pr/2;\n",
+    "\n",
+    "#result\n",
+    "print \"reactance is\",round(Xl/1000,2), \"ohm\"\n",
+    "print \"voltage across resistor is\",round(Vr,2), \"V\"\n",
+    "print \"-48 is the angle of the voltage in degrees\";\n",
+    "print \"power dissipated by load is\",round(Pr,2), \"watts\"\n",
+    "print \"current across the resistance is\",round(I,2), \"A\"\n",
+    "print \"power supply is\",round(Psupply,2), \"W\"\n",
+    "print \"power dissipated by transistor is\",round(Pq,2), \"watts\""
+   ]
+  }
+ ],
+ "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": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}