Opto RS232 9600bps

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HSPACE="0" VSPACE="0">Izolirano napajanje za LCD DVM</B></U></A></div> <bR> </td> <td valign="top" height=400 BGCOLOR="#FFFFFF" TEXT="#080000"> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2650537455752702" crossorigin="anonymous"></script>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-2650537455752702" data-ad-slot="7117608876" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> <bR> <bR> <div> <B><IMG SRC="9145f320.gif" border=0 width="607" height="306" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div>      Ovdje je prikazan siguran sklop za prijenos RS232 signala na mikrokontroler. Dimenzioniran je tako da podnosi kratkotrajne impulse i do 100V na ulazu. Namjena sklopa je osigurati galvansku izolaciju i zaštiti mikrokontroler od visokon tranzijentnog napona na ulazu. Sklop je jednosmjeran tj. mikrokontroler preko njega samo prima impulse serijske komunikacije. Sklop je uspješno iskorišten u <A HREF="d6_display_za_danje_svjetlo.htm" TARGET="_top" TITLE="Display za kolne vage D6 V105"><U>D6 displayu</U></A>.</div> <bR> <div>      Zemlja i ulazni GND signal trebaju biti spojeni skupa na izvoru signala. Minimalna struja kroz RX ulaz treba biti -1,6mA. Ulazni otpornici 1K su  žičani snage 1.5W.</div> <bR> </td> </tr></table></body>