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diff --git a/Solid_State_Electronics/Solid_State_electronics_Ch9.ipynb b/Solid_State_Electronics/Solid_State_electronics_Ch9.ipynb new file mode 100755 index 00000000..1a3e4d3e --- /dev/null +++ b/Solid_State_Electronics/Solid_State_electronics_Ch9.ipynb @@ -0,0 +1,154 @@ +{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 9 : Silicon Controlled Rectifier"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 9.1, Page No. 238 "
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# average voltage\n",
+ "\n",
+ "import math\n",
+ "#Variable declaration\n",
+ "Vm=200.0 #in V\n",
+ "theta=30.0 #firing angle in degree\n",
+ "\n",
+ "#Calculations\n",
+ "vdc=((Vm/math.pi)*(1+math.cos(theta*math.pi/180)))\n",
+ "\n",
+ "#Result\n",
+ "print(\"average value of voltage is ,(V)= %.f\"%(round(vdc)))\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "average value of voltage is ,(V)= 119\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 9.2, Page No. 238"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# dc load current rms load current amd power dissipiated\n",
+ "\n",
+ "import math\n",
+ "#Variable declaration\n",
+ "Va=300.0 # in V\n",
+ "Vm=300.0*math.sqrt(2) # in V\n",
+ "Rl=50.0 #in ohm\n",
+ "theta1=90.0 #firing angle in degree\n",
+ "\n",
+ "#Calculations\n",
+ "idc=((Vm/(2*math.pi*Rl))*(1+math.cos(theta1*math.pi/180)))\n",
+ "irms=Va/(2*Rl)\n",
+ "P=irms**2*Rl\n",
+ "\n",
+ "#Result\n",
+ "print(\"(i) The dc load current is ,(A) = %.2f\"%idc)\n",
+ "print(\"(ii) The rms load current is ,(A) = %.f\"%(round(irms)))\n",
+ "print(\"(iii) The power dissipated by the load is ,(W)= %.f\"%(round(P)))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(i) The dc load current is ,(A) = 1.35\n",
+ "(ii) The rms load current is ,(A) = 3\n",
+ "(iii) The power dissipated by the load is ,(W)= 450\n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 9.3, Page No. 239"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# firing angle conducting angle and average current\n",
+ "\n",
+ "import math\n",
+ "#Variable declaration\n",
+ "Ih=0.0 #in A\n",
+ "Vi=100.0 #in V\n",
+ "Vm=200.0 #in V\n",
+ "Rl=100.0 #in ohm\n",
+ "\n",
+ "#Calculations\n",
+ "theta1=(180/math.pi)*math.asin(Vi/Vm) #firing angle in degree\n",
+ "ca=180-theta1 #conducting angle in dehree\n",
+ "av=((Vm/(2*math.pi))*(1+math.cos(theta1*math.pi/180)))\n",
+ "ac=av/Rl \n",
+ "\n",
+ "#Result \n",
+ "print(\"(i) firing angle is ,(degree) = %.f\u00b0\"%(theta1))\n",
+ "print(\"(ii) conducting angle is ,(degree) = %.f\u00b0\"%ca)\n",
+ "print(\"(iii) average current is ,(A) = %.4f\"%ac)\n",
+ "#average current is wrong in the textbook"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(i) firing angle is ,(degree) = 30\u00b0\n",
+ "(ii) conducting angle is ,(degree) = 150\u00b0\n",
+ "(iii) average current is ,(A) = 0.5940\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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