1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
{
"metadata": {
"name": "",
"signature": "sha256:934b9f1a90e136e295951deeff35be6457078af8181c0ad14c05c8c2d9b3abed"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 15 , BJT Characteristics "
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 15.1 , Page Number 331"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"\n",
"#Variables\n",
"\n",
"PDmax = 500 #Maximum Power dissipation at 25 degree Celsius (in milli-watt)\n",
"DF = 2.28 #derating factor (in milli-watt per degree Celsius)\n",
"T = 70 #Temperaure (in degree Celsius)\n",
"\n",
"#Calculation\n",
"\n",
"PDmax70 = PDmax - DF * (T - 25) #Maximum Power dissipation at 70 degree Celsius (in milli-watt)\n",
"\n",
"#Result\n",
"\n",
"print \"Maximum power dissipation at 70 degree Celsius is \",round(PDmax70),\" mW.\" "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Maximum power dissipation at 70 degree Celsius is 397.0 mW.\n"
]
}
],
"prompt_number": 1
}
],
"metadata": {}
}
]
}
|
