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+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Chapter 7 - Field Effect Transistor"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 370 example 1"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "vgs = 0.70 volt\n",
+ "id = 1.51e-03 ampere\n",
+ "vds = 11.23 volt\n",
+ "voltage gain = -21.25\n"
+ ]
+ }
+ ],
+ "source": [
+ "from sympy import symbols, solve\n",
+ "rd=12*10**3##ohm\n",
+ "r=1*10**6##ohm\n",
+ "resour=470##ohm\n",
+ "vdd=30##volt\n",
+ "idss=3*10**-3##ampere\n",
+ "vd=2.4##volt\n",
+ "v = symbols('v')\n",
+ "vgs=[0.24, 2.175, 1.41]\n",
+ "expr = vgs[0]*v**2+vgs[1]*v+vgs[2]\n",
+ "vgs=-solve(expr,v)[1]\n",
+ "vgs=0.7\n",
+ "id=idss*((1-(vgs/vd)))**2\n",
+ "vds=vdd-id*(rd+resour)\n",
+ "g=(2*idss/vd)*(1-((vgs/vd)))\n",
+ "volgai=-g*rd\n",
+ "print \"vgs = %0.2f\"%((vgs)),\"volt\"\n",
+ "print \"id = %0.2e\"%((id)),\"ampere\"\n",
+ "print \"vds = %0.2f\"%((vds)),\"volt\"\n",
+ "print \"voltage gain = %0.2f\"%((volgai))"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 371 example 2"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "r1 = 2000.00 ohm\n"
+ ]
+ }
+ ],
+ "source": [
+ "from __future__ import division\n",
+ "idss=1*10**-3##ampere\n",
+ "pinvol=1##volt\n",
+ "q=10##volt\n",
+ "rd=56*10**3##ohm\n",
+ "vdd=24##volt\n",
+ "dracur=(vdd-q)/rd\n",
+ "vgs=0.5\n",
+ "r1=vgs/dracur\n",
+ "print \"r1 = %0.2f\"%((r1)),\"ohm\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 372 example 4"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "id = 2.25e-03 ampere\n",
+ "vds = 10.50 volt\n"
+ ]
+ }
+ ],
+ "source": [
+ "ids=4*10**-3##ampere\n",
+ "vp=4##volt\n",
+ "r=1.3*10**3#ohm\n",
+ "r1=200*10**3##ohm\n",
+ "vdd=60##volt\n",
+ "drares=18*10**3##ohm\n",
+ "soresi=4*10**3##ohm\n",
+ "rth=(r*r1)/(r+r1)\n",
+ "vth=r1*(1-vdd)/(1500*10**3)\n",
+ "id=-2.25*10**-3\n",
+ "vds=-vdd-(drares+soresi)*id\n",
+ "print \"id = %0.2e\"%(abs(id)),\"ampere\"\n",
+ "print \"vds = %0.2f\"%(abs(vds)),\"volt\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 373 example 5"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "source resistance = 156.25 ohm\n"
+ ]
+ }
+ ],
+ "source": [
+ "from math import sqrt\n",
+ "idss=10*10**-3##ampere\n",
+ "pinvol=-1##volt\n",
+ "ids=6.4*10**-3##ampere\n",
+ "vgs=-(sqrt(ids/idss)-(1))*pinvol\n",
+ "r=pinvol/ids\n",
+ "print \"source resistance = %0.2f\"%(abs(r)),\"ohm\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 374 example 6"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "duration = 1.39e-07 second\n"
+ ]
+ }
+ ],
+ "source": [
+ "from math import log\n",
+ "v1=2##volt\n",
+ "vgs=4##volt\n",
+ "voltag=5##volt\n",
+ "q=5*10**-3##ampere per volt square\n",
+ "id=q*(vgs-v1)\n",
+ "durati=10**-7*log(4)\n",
+ "\n",
+ "print \"duration = %0.2e\"%((durati)),\"second\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 7 example 7"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 6,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "max transconductance = 4.00e-04 mho\n"
+ ]
+ }
+ ],
+ "source": [
+ "idss=1*10**-3##ampere\n",
+ "pinvol=-5##volt\n",
+ "tracon=(2*idss)/abs(pinvol)\n",
+ "print \"max transconductance = %0.2e\"%((tracon)),\"mho\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 376 example 8"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 7,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "vgs = 3.24 volt\n",
+ "rd = 13527.86 ohm\n"
+ ]
+ }
+ ],
+ "source": [
+ "from math import sqrt\n",
+ "vdd=10##volt\n",
+ "beta1=10**-4##ampere per square volt\n",
+ "ids=0.5*10**-3##ampere\n",
+ "voltag=1##volt\n",
+ "vgs=(sqrt(ids/beta1)+(1))\n",
+ "rd=(vdd-vgs)/ids\n",
+ "\n",
+ "print \"vgs = %0.2f\"%((vgs)),\"volt\"\n",
+ "print \"rd = %0.2f\"%((rd)),\"ohm\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## PageNumber 376 example 9"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 8,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "point 10.75 >2.00 volt\n",
+ "vds greater than 2volt the point in pinch\n"
+ ]
+ }
+ ],
+ "source": [
+ "v1=2##volt\n",
+ "ids=4*10**-3##ampere\n",
+ "\n",
+ "rd=910##ohm\n",
+ "r1=3*10**3##ohm\n",
+ "r=12*1**6##ohm\n",
+ "r11=8.57*10**6##ohm\n",
+ "vdd=24##volt\n",
+ "vg=vdd*(r11/(r+(r11)))\n",
+ "id=3.39*10**-3\n",
+ "vgsq=vg-id*r1\n",
+ "vdsq=vdd-id*(rd+r1)\n",
+ "vdgq=vdsq-vgsq\n",
+ "print \"point %0.2f\"%(vdsq),\">%0.2f\"%(v1),\"volt\"\n",
+ "print \"vds greater than 2volt the point in pinch\""
+ ]
+ }
+ ],
+ "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
+}
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