haskal
/
kicad
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
kicad/pcb_calculator/attenuators/bridget_tee_formula.html

33 lines
1.9 KiB
HTML
Raw Normal View History

kicad_curl.cpp: fix a compil warning on Windows (regression) pcb_calculator: fix incorrect formulas shown in attenuators panel. Png files are no more used, and formulas are now html doc files.
2016-01-16 14:27:42 +00:00
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1252"/>
<title></title>
<meta name="generator" content="LibreOffice 5.0.3.2 (Windows)"/>
<meta name="created" content="00:00:00"/>
<meta name="changed" content="2016-01-16T13:33:30.802000000"/>
<meta name="created" content="00:00:00">
<meta name="changed" content="2016-01-16T10:18:56.932000000">
<meta name="created" content="2016-01-16T10:09:46.840000000">
<meta name="changed" content="2016-01-16T10:10:55.745000000">
</head>
<body lang="fr-FR" dir="ltr">
<p style="margin-bottom: 0cm"><font face="Times New Roman, serif"><font size="5" style="font-size: 18pt">Z<sub>in</sub>
desired input impedance in <b>&#8486;</b></font></font></p>
<p style="margin-bottom: 0cm"><font face="Times New Roman, serif"><font size="5" style="font-size: 18pt">Z<sub>out</sub>
desired output impedance <b>Z in = Z out</b></font></font></p>
<p style="margin-bottom: 0cm"><font face="Times New Roman, serif"><font size="5" style="font-size: 18pt"><i><b>a</b></i>
attenuation in dB</font></font></p>
<p style="margin-left: 1.25cm; margin-bottom: 0cm"><font face="Times New Roman, serif"><font size="5" style="font-size: 18pt"><b>L
= 10</b><sup><b>a/20</b></sup> (the loss)</font></font></p>
<p style="margin-bottom: 0cm"><br/>
</p>
<p style="margin-bottom: 0cm"><font face="Times New Roman, serif"><font size="5" style="font-size: 18pt"><b>Bridged
tee attenuator</b></font></font></p>
<p style="margin-left: 1.25cm; margin-bottom: 0cm"><font face="Times New Roman, serif"><font size="6" style="font-size: 24pt"><i><b>R1
= Z<sub>in</sub> * (L &minus; 1)</b></i></font></font></p>
<p style="margin-left: 1.25cm; margin-bottom: 0cm"><font face="Times New Roman, serif"><font size="6" style="font-size: 24pt"><i><b>R2
= Z<sub>in</sub>/(L &minus; 1)</b></i></font></font></p>
</body>
</html>