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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 20: Field-effect Transistors"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 20.1, Page"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Small signal voltage gain = -4 \n",
"Low frequency cut off = 0.16 Hz\n"
]
}
],
"source": [
"import math\n",
"\n",
"#Introduction\n",
"gm=2*10**-3\n",
"rd=2*10**3 #resistance in ohm\n",
"C=10**-6 #capacitance in farad\n",
"R=10**6 #resistance in ohm\n",
"\n",
"\n",
"#Calculation\n",
"G=-gm*rd #Small signal voltage gain\n",
"fc=1/(2*math.pi*C*R) #frequency in Hz\n",
"\n",
"#Result\n",
"print'Small signal voltage gain = %d '%G\n",
"print'Low frequency cut off = %.2f Hz'%fc"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 20.2, Page"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Rd = 0.67 kOhm\n"
]
}
],
"source": [
"import math\n",
"\n",
"#Introduction\n",
"idd=4*10**-3 #current in ampere\n",
"vo=8 #voltage\n",
"vdd=12 #voltage\n",
"\n",
"#Calculation\n",
"Rd=vo*(vdd-idd)**-1\n",
"\n",
"#Result\n",
"print'Rd = %.2f kOhm'%Rd #wrong answer in textbook"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
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"source": []
}
],
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"name": "Python [Root]"
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"name": "ipython",
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"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython2",
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"nbformat": 4,
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|
