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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bude to STM32 (ARM/Cortex-M3) za par $$$. Spis mi jde o
algoritmy zpracovani toho signalu z I a U vetve, dithering, fazove posuvy,
detekce malych proudu, eliminaci vypadku a spicek a na co si dat pozor pri
implementaci. Kalibraci na teplotu a ruzne rozsahy mereni si budu delat...<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>--<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>S pozdravem/with best regards<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> Ing. Tomas Dresler<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>mailto:dresler@hw.cz<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> hw-list-bounces@list.hw.cz
[mailto:hw-list-bounces@list.hw.cz] <b>On Behalf Of </b>Novotny Pavel<br>
<b>Sent:</b> Wednesday, April 30, 2008 10:38 PM<br>
<b>To:</b> hw<br>
<b>Subject:</b> RE:Mereni el. energie, Was: OT: Vykani<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p>Moc tento thead nesleduji, ale myslim, ze AD prevodnik a jeho cena je ten
nejmensi problem v cele konstrukci. <o:p></o:p></p>
<p>Dosahnout dlouhodobe presnosti do 1% za pouziti nespecializovanych IC bude
vyzadovat pouziti DSP v kterem jiz nejake ty ADC stejne budou , cenove se tak
stejne budeme pohybovat pres 10$ pri 1000ks.Dlouhodoba presnosti pod 1% bude
vyzadovat i precizni provedeni analogove casti, tzn. bezne OZ a odpory za par
haleru asi take nebudou to prave orechove.<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>$$<o:p></o:p></p>
<p>>Hoops, hej ja som si pozeral 16-bitove AD. Teraz som si na to spomenul.<br>
Ale aj tak plati vsetko to co som napisal. Tomu sa nevyhnete, tak ci tak.<br>
<br>
A.<br>
<br>
<br>
><i> 30.4.2008, 15:17:22<br>
</i>><i> <br>
</i>><i> Nevim co vsechno musi pozadovany ADC splnovat, ale 12bit/1MSPS ma<br>
</i>><i> treba ADS7886 a ten je za zlomek vami uvedene ceny.</i><o:p></o:p></p>
<p> <o:p></o:p></p>
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