{
"cells": [
 {
		   "cell_type": "markdown",
	   "metadata": {},
	   "source": [
       "# Chapter 5: Non Linear Applications of IC OPamps"
	   ]
	},
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.11: Triangular_wave_generator.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.11\n",
"clc;clear;close;\n",
"format('v',5);\n",
"f0=1.5;//kHz\n",
"Vopp=6;//V\n",
"Vsat=13.5;//V\n",
"//Let R2=10kohm\n",
"R2=10;//kohm\n",
"R3=R2*2*Vsat/Vopp;//kohm\n",
"//Let C1=0.05 micro F\n",
"C1=0.05;//micro F\n",
"R1=R3/(4*f0*1000*R2*1000*C1*10^-6);//kohm\n",
"disp(R3,R2,R1,'Values of R1, R2 & R3(kohm) are : ');\n",
"disp(C1,'Value of C1(micro F)');"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.12: Frequency_of_oscillation.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.12\n",
"clc;clear;close;\n",
"format('v',4);\n",
"tau=1;//ms\n",
"//R1/R2=1.8:9;given range\n",
"//Let R1/R2=1.8\n",
"R1BYR2=1.8;//ratio\n",
"Beta1=1/(R1BYR2+1);\n",
"R1BYR2=9;//ratio\n",
"Beta2=1/(R1BYR2+1);//unitless\n",
"Beta=Beta1:Beta2;//Range of Beta\n",
"//For fmin\n",
"Tmax=2*log((1+Beta1)/(1-Beta1));//ms\n",
"fmin=1000/Tmax;//Hz\n",
"//For fmax\n",
"Tmin=2*log((1+Beta2)/(1-Beta2));//ms\n",
"fmax=1/Tmin;//kHz\n",
"disp('Frequency range is '+string(fmin)+' Hz to '+string(fmax)+' kHz');"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.1: Find_VUT_and_VLT.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.1\n",
"clc;clear;close;\n",
"format('v',5);\n",
"R1=100;//kohm\n",
"R2=86;//kohm\n",
"Vsat=15;//V\n",
"VUT=R2/(R1+R2)*Vsat;//V\n",
"VLT=R2/(R1+R2)*-Vsat;//V\n",
"disp(VUT,'VUT(V) : ');\n",
"disp(VLT,'VLT(V) : ');"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.2: Period_of_multivbator_and_frequency.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.2\n",
"clc;clear;close;\n",
"Rf=100;//kohm\n",
"C=0.1;//micro F\n",
"T=2*Rf*1000*C*10^-6;//s\n",
"disp(T*10^3,'Time period(ms)');\n",
"f=1/T;//Hz\n",
"disp(f,'Frequency(Hz) : ');"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.3: Frequency_of_oscillation.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.3\n",
"clc;clear;close;\n",
"R=100;//kohm\n",
"C=0.01;//micro F\n",
"f=1/(2*R*10^3*C*10^-6);//Hz\n",
"disp(f,'Frequency(Hz) : ');"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.4: Design_a_square_wave_oscillator.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.4\n",
"clc;clear;close;\n",
"f=1*1000;//HZ\n",
"Vs=15;//V\n",
"C=0.1;//micro F(Assumed)\n",
"R=1/(2*f*C*10^-6);//Hz\n",
"disp(R/1000,'For the required design value of R(kohm) : ');\n",
"disp('R1 & R2 can be choosen as 10 kohm');\n",
"///Answer in the book is wrong"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.5: Maximum_diode_current.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.5\n",
"clc;clear;close;\n",
"Vo=0.7;//V\n",
"Vsat=12;//V\n",
"R1=10;//kohm\n",
"R2=60;//kohm\n",
"Vth=R1/(R1+R2)*Vo;//V\n",
"iDmax=(Vsat-Vo)/R1-Vo/(R1+R2);//mA\n",
"disp(iDmax,'Maximum current(mA) : ');\n",
""
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.7: Frequency_of_oscillation.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.7\n",
"clc;clear;close;\n",
"format('v',6);\n",
"R1=10;//kohm\n",
"R2=16;//kohm\n",
"C=10;//nF\n",
"R=62;//kohm\n",
"Beta=R1/(R1+R2);//unitless\n",
"T=2*R*1000*C*10^-9*log((1+Beta)/(1-Beta));//seconds\n",
"f=1/T;//Hz\n",
"disp(f,'Frequency of oscillations(Hz) : ');"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.8: Average_output_voltage.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.8\n",
"clc;clear;close;\n",
"format('v',5);\n",
"//vo/v1=1+R2/R1;//\n",
"//For v2/v1 i.e. gain=2, R1 & R2 should be equal\n",
"Vpp=10;//V\n",
"R1=10;//kohm\n",
"R2=10;//kohm\n",
"//Avg=1/T*integrate('Vpp*sin(2*%pi*t/T)','t',0,T/2);\n",
"Avg=-Vpp/(2*%pi)*[cos(%pi)-cos(0)];\n",
"disp(Avg,'Average output voltage(V) : ');"
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 5.9: Design_of_rectifier.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"//Ex 5.9\n",
"clc;clear;close;\n",
"format('v',5);\n",
"//vo/v1=-2;//Gain for -ve inputs\n",
"voBYvi=-2;//Gain for -ve inputs\n",
"//vo/v1=0;//Gain for non -ve inputs\n",
"Rin=100;//kohm\n",
"R1=100;//kohm(R1=Rin)\n",
"R2=-R1*voBYvi;//kohm\n",
"disp(R2,R1,'Values of R1 & R2(kohm) are : ');"
   ]
   }
],
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			{
			 "text": "MetaKernel Magics",
			 "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
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