add books

2 files changed, 506 insertions, 0 deletions

diff --git a/sample_notebooks/MohdRizwan/Chapter8.ipynb b/sample_notebooks/MohdRizwan/Chapter8.ipynb
new file mode 100755
index 00000000..0017f769
--- /dev/null
+++ b/sample_notebooks/MohdRizwan/Chapter8.ipynb
@@ -0,0 +1,253 @@
+{
+ "metadata": {
+  "name": "Rijwan",
+  "signature": "sha256:ccfeb26b31d807a5210cb280c22c39e23c0906566f59b1bedfeb5dfebe856c36"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Ch-8 Oscillators"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.1, page 272 "
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "#Given data\n",
+      "A=50  #unitless\n",
+      "criteria =  \"Barkhausen criterion for oscillator : Beta*A=1\"\n",
+      "Beta=1/A  #unitless\n",
+      "print criteria,\"\\nFeedback Factor for oscillator : \",Beta"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Barkhausen criterion for oscillator : Beta*A=1 \n",
+        "Feedback Factor for oscillator :  0.02\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.2, page 279"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import pi\n",
+      "#Given data\n",
+      "L=100  #in uH\n",
+      "L=L*10**-6  #in H\n",
+      "f1=500  #in kHz\n",
+      "f1=f1*10**3  #in Hz\n",
+      "f2=1500  #in kHz\n",
+      "f2=f2*10**3  #in Hz\n",
+      "#Formula : f=1/(2*%pi*sqrt(L*C))\n",
+      "C1=1/(4*pi**2*f1**2*L)  #in F\n",
+      "C2=1/(4*pi**2*f2**2*L)  #in F\n",
+      "C1*=10**12  #pF\n",
+      "C2*=10**12  #pF\n",
+      "print \"Range of capacitor : %0.2f pf to %0.2f pf\" %(C2, C1)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Range of capacitor : 112.58 pf to 1013.21 pf\n"
+       ]
+      }
+     ],
+     "prompt_number": 7
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.3, page 285"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import pi  \n",
+      "#Given data\n",
+      "R=100  #in kOhm\n",
+      "R=R*10**3  #in Ohm\n",
+      "C=0.01  #in uF\n",
+      "C=C*10**-6  #in F\n",
+      "fo=sqrt(6)/(2*pi*R*C)  #in Hz\n",
+      "print \"Frequency of oscillation is %0.3f Hz\" %fo"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Frequency of oscillation is 389.848 Hz\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.4, page 288"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import sqrt\n",
+      "#Given data\n",
+      "assumed = \"Assume alfa=sqrt(6) to find the gain.\"\n",
+      "alfa=sqrt(6)  #unitless\n",
+      "Beta=1/(1-5*alfa**2)  \n",
+      "criteria = \"Barkhausen critera : A*|Beta|>=1\"\n",
+      "Beta=-Beta  #\n",
+      "A=1/Beta  #unitless\n",
+      "print assumed,\"\\n\",criteria,\"\\nMinimum Gain of Amplifier must be \",A"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Assume alfa=sqrt(6) to find the gain. \n",
+        "Barkhausen critera : A*|Beta|>=1 \n",
+        "Minimum Gain of Amplifier must be  29.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.6, page 289"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import pi, sqrt\n",
+      "#Given data :\n",
+      "R1=50  #in kohm\n",
+      "R1=R1*10**3  #in ohm\n",
+      "C1=0.001  #in uF\n",
+      "C1=C1*10**-6  #in F\n",
+      "R2=1  #in kohm\n",
+      "R2=R2*10**3  #in ohm\n",
+      "C2=0.01  #in uF\n",
+      "C2=C2*10**-6  #in F\n",
+      "#Part (i)\n",
+      "#Formula : f=1/(2*pi*sqrt(C1*C2*R1*R2))\n",
+      "f=1/(2*pi*sqrt(C1*C2*R1*R2))  #in Hz\n",
+      "f/=1000  #kHz\n",
+      "print \"(i) Frequency of oscillations is %0.3f kHz\" %f\n",
+      "#Part (ii)\n",
+      "CurrentGain=1+C2/C1+R1/R2  #unitless\n",
+      "print \"(ii) Current Gain : \",CurrentGain"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(i) Frequency of oscillations is 7.118 kHz\n",
+        "(ii) Current Gain :  61.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 20
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.7, page 295"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import sqrt, pi\n",
+      "#Given data :\n",
+      "fmin=20  #in Hz\n",
+      "fmax=20  #in kHz\n",
+      "Cmin=30  #in pF\n",
+      "Cmax=300  #in pF\n",
+      "#Formula : fo=1/(2*pi*R*C))\n",
+      "R=1/(2*pi*fmin*Cmax*10**-12) # ohm\n",
+      "R/=10**6  # Mohm\n",
+      "print \"Required resistance is %0.3f Mohm\" %R"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Required resistance is 26.526 Mohm\n"
+       ]
+      }
+     ],
+     "prompt_number": 21
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
diff --git a/sample_notebooks/MohdRizwan/Chapter8_1.ipynb b/sample_notebooks/MohdRizwan/Chapter8_1.ipynb
new file mode 100755
index 00000000..7882afef
--- /dev/null
+++ b/sample_notebooks/MohdRizwan/Chapter8_1.ipynb
@@ -0,0 +1,253 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:cc1e0bf9fd21090c1f4f51c5610a5d1ad82c8e491a8eb621bca23a14ca4e6993"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Ch-8 Oscillators"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.1, page 272 "
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "#Given data\n",
+      "A=50  #unitless\n",
+      "criteria =  \"Barkhausen criterion for oscillator : Beta*A=1\"\n",
+      "Beta=1/A  #unitless\n",
+      "print criteria,\"\\nFeedback Factor for oscillator : \",Beta"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Barkhausen criterion for oscillator : Beta*A=1 \n",
+        "Feedback Factor for oscillator :  0.02\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.2, page 279"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import pi\n",
+      "#Given data\n",
+      "L=100  #in uH\n",
+      "L=L*10**-6  #in H\n",
+      "f1=500  #in kHz\n",
+      "f1=f1*10**3  #in Hz\n",
+      "f2=1500  #in kHz\n",
+      "f2=f2*10**3  #in Hz\n",
+      "#Formula : f=1/(2*%pi*sqrt(L*C))\n",
+      "C1=1/(4*pi**2*f1**2*L)  #in F\n",
+      "C2=1/(4*pi**2*f2**2*L)  #in F\n",
+      "C1*=10**12  #pF\n",
+      "C2*=10**12  #pF\n",
+      "print \"Range of capacitor : %0.2f pf to %0.2f pf\" %(C2, C1)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Range of capacitor : 112.58 pf to 1013.21 pf\n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.3, page 285"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import pi, sqrt  \n",
+      "#Given data\n",
+      "R=100  #in kOhm\n",
+      "R=R*10**3  #in Ohm\n",
+      "C=0.01  #in uF\n",
+      "C=C*10**-6  #in F\n",
+      "fo=sqrt(6)/(2*pi*R*C)  #in Hz\n",
+      "print \"Frequency of oscillation is %0.3f Hz\" %fo"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Frequency of oscillation is 389.848 Hz\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.4, page 288"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import sqrt\n",
+      "#Given data\n",
+      "assumed = \"Assume alfa=sqrt(6) to find the gain.\"\n",
+      "alfa=sqrt(6)  #unitless\n",
+      "Beta=1/(1-5*alfa**2)  \n",
+      "criteria = \"Barkhausen critera : A*|Beta|>=1\"\n",
+      "Beta=-Beta  #\n",
+      "A=1/Beta  #unitless\n",
+      "print assumed,\"\\n\",criteria,\"\\nMinimum Gain of Amplifier must be \",A"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Assume alfa=sqrt(6) to find the gain. \n",
+        "Barkhausen critera : A*|Beta|>=1 \n",
+        "Minimum Gain of Amplifier must be  29.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.6, page 289"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import pi, sqrt\n",
+      "#Given data :\n",
+      "R1=50  #in kohm\n",
+      "R1=R1*10**3  #in ohm\n",
+      "C1=0.001  #in uF\n",
+      "C1=C1*10**-6  #in F\n",
+      "R2=1  #in kohm\n",
+      "R2=R2*10**3  #in ohm\n",
+      "C2=0.01  #in uF\n",
+      "C2=C2*10**-6  #in F\n",
+      "#Part (i)\n",
+      "#Formula : f=1/(2*pi*sqrt(C1*C2*R1*R2))\n",
+      "f=1/(2*pi*sqrt(C1*C2*R1*R2))  #in Hz\n",
+      "f/=1000  #kHz\n",
+      "print \"(i) Frequency of oscillations is %0.3f kHz\" %f\n",
+      "#Part (ii)\n",
+      "CurrentGain=1+C2/C1+R1/R2  #unitless\n",
+      "print \"(ii) Current Gain : \",CurrentGain"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(i) Frequency of oscillations is 7.118 kHz\n",
+        "(ii) Current Gain :  61.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Exa 8.7, page 295"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "from __future__ import division\n",
+      "from math import sqrt, pi\n",
+      "#Given data :\n",
+      "fmin=20  #in Hz\n",
+      "fmax=20  #in kHz\n",
+      "Cmin=30  #in pF\n",
+      "Cmax=300  #in pF\n",
+      "#Formula : fo=1/(2*pi*R*C))\n",
+      "R=1/(2*pi*fmin*Cmax*10**-12) # ohm\n",
+      "R/=10**6  # Mohm\n",
+      "print \"Required resistance is %0.3f Mohm\" %R"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Required resistance is 26.526 Mohm\n"
+       ]
+      }
+     ],
+     "prompt_number": 7
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file