Il portale dell'elettrotecnica e dell'elettronica http://www.electroportal.net/list.php?o=Data_0&f0=ExcludeObjSet_3 12 Nov 2009 30:17:36 +0100 1 http://feeds.feedburner.com/ElectroPortal?format=skinElectroPortalhttp://feedburner.google.comSubscribe with NewsGatorSubscribe with BloglinesSubscribe with NetvibesSubscribe with GoogleSubscribe with PageflakesSubscribe with Mio Yahoo!Resta sempre aggiornato sugli ultimi inserimenti di ElectroPortal. http://feedproxy.google.com/~r/ElectroPortal/~3/RfwKnEmyQac/antenne Nel forum telecomunicazioni ultimamente molte persone stanno chiedendo consigli su come sistemare il proprio impianto d'antenna. In questo articolo intendo presentarvi le nozioni fondamentali su un impianto d'antenna terrestre. Le bande utilizzate nella tv terrestre sono: Nel digitale terrestre viene utlizzata solo la III banda VHF e IV e V UHF. [Immagine] UHF Yagi [Immagine] UHF Pannello <b>Continua...</b> [...] <p><b><a href="http://www.electroportal.net/simone96/wiki/antenne">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RfwKnEmyQac:pLacfyDDH1s:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RfwKnEmyQac:pLacfyDDH1s:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RfwKnEmyQac:pLacfyDDH1s:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RfwKnEmyQac:pLacfyDDH1s:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=RfwKnEmyQac:pLacfyDDH1s:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RfwKnEmyQac:pLacfyDDH1s:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RfwKnEmyQac:pLacfyDDH1s:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RfwKnEmyQac:pLacfyDDH1s:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/RfwKnEmyQac" height="1" width="1"/> 12 Nov 2009 30:17:36 +0100 http://www.electroportal.net/simone96/wiki/antenne http://www.electroportal.net/simone96/wiki/antenne http://feedproxy.google.com/~r/ElectroPortal/~3/dp0plPnlQt8/vis_resource.php Qualche considerazione sulla convenienza dell aloro installazione [...] <p><b><a href="http://www.electroportal.net/vis_resource.php?section=Link&id=4172">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=dp0plPnlQt8:P4zDbkcBEMM:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=dp0plPnlQt8:P4zDbkcBEMM:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=dp0plPnlQt8:P4zDbkcBEMM:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=dp0plPnlQt8:P4zDbkcBEMM:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=dp0plPnlQt8:P4zDbkcBEMM:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=dp0plPnlQt8:P4zDbkcBEMM:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=dp0plPnlQt8:P4zDbkcBEMM:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=dp0plPnlQt8:P4zDbkcBEMM:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/dp0plPnlQt8" height="1" width="1"/> 12 Nov 2009 00:00:00 +0100 http://www.electroportal.net/vis_resource.php?section=Link&id=4172 http://www.electroportal.net/vis_resource.php?section=Link&id=4172 http://feedproxy.google.com/~r/ElectroPortal/~3/cTF5AaqNJ74/vis_resource.php Descrizione del progetto e dell'installazione di un impianto fotovoltaico dotato di inseguitore solare. [...] <p><b><a href="http://www.electroportal.net/vis_resource.php?section=Link&id=4173">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cTF5AaqNJ74:Lmpef3gf5D0:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cTF5AaqNJ74:Lmpef3gf5D0:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cTF5AaqNJ74:Lmpef3gf5D0:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cTF5AaqNJ74:Lmpef3gf5D0:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=cTF5AaqNJ74:Lmpef3gf5D0:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cTF5AaqNJ74:Lmpef3gf5D0:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cTF5AaqNJ74:Lmpef3gf5D0:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cTF5AaqNJ74:Lmpef3gf5D0:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/cTF5AaqNJ74" height="1" width="1"/> 12 Nov 2009 00:00:00 +0100 http://www.electroportal.net/vis_resource.php?section=Link&id=4173 http://www.electroportal.net/vis_resource.php?section=Link&id=4173 http://feedproxy.google.com/~r/ElectroPortal/~3/RHWNsWesG0o/viewtopic.php Il valore della corrente di cortocircuito per le forniture in bassa tensione [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15571">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RHWNsWesG0o:tnuUpttjm5k:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RHWNsWesG0o:tnuUpttjm5k:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RHWNsWesG0o:tnuUpttjm5k:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RHWNsWesG0o:tnuUpttjm5k:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=RHWNsWesG0o:tnuUpttjm5k:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RHWNsWesG0o:tnuUpttjm5k:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RHWNsWesG0o:tnuUpttjm5k:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=RHWNsWesG0o:tnuUpttjm5k:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/RHWNsWesG0o" height="1" width="1"/> 11 Nov 2009 19:11:55 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15571 http://www.electroportal.net/phpBB2/viewtopic.php?t=15571 http://feedproxy.google.com/~r/ElectroPortal/~3/2NEgLvzIUpI/viewtopic.php Considerazioni varie [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15564">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=2NEgLvzIUpI:YYW0iCZOCCw:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=2NEgLvzIUpI:YYW0iCZOCCw:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=2NEgLvzIUpI:YYW0iCZOCCw:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=2NEgLvzIUpI:YYW0iCZOCCw:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=2NEgLvzIUpI:YYW0iCZOCCw:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=2NEgLvzIUpI:YYW0iCZOCCw:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=2NEgLvzIUpI:YYW0iCZOCCw:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=2NEgLvzIUpI:YYW0iCZOCCw:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/2NEgLvzIUpI" height="1" width="1"/> 10 Nov 2009 20:10:23 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15564 http://www.electroportal.net/phpBB2/viewtopic.php?t=15564 http://feedproxy.google.com/~r/ElectroPortal/~3/1zWZHjlApkI/viewtopic.php ...forse l'isteresi non c'entra, ma c'è una vivace ed interessante discussione sul calcolo del ripple di un alimentatore [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15468">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=1zWZHjlApkI:HRmgbHdwidk:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=1zWZHjlApkI:HRmgbHdwidk:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=1zWZHjlApkI:HRmgbHdwidk:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=1zWZHjlApkI:HRmgbHdwidk:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=1zWZHjlApkI:HRmgbHdwidk:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=1zWZHjlApkI:HRmgbHdwidk:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=1zWZHjlApkI:HRmgbHdwidk:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=1zWZHjlApkI:HRmgbHdwidk:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/1zWZHjlApkI" height="1" width="1"/> 9 Nov 2009 16:11:49 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15468 http://www.electroportal.net/phpBB2/viewtopic.php?t=15468 http://feedproxy.google.com/~r/ElectroPortal/~3/LMPNVUWUfBc/viewtopic.php Il titolo del topic non è dei migliori, ma chi vuole imparare a risolvere esercizi di elettrotecnica in modo classico e con strumenti attuali, qui trova parecchi e indicazioni utili. [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15531">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=LMPNVUWUfBc:W2G2F8tHfSg:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=LMPNVUWUfBc:W2G2F8tHfSg:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=LMPNVUWUfBc:W2G2F8tHfSg:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=LMPNVUWUfBc:W2G2F8tHfSg:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=LMPNVUWUfBc:W2G2F8tHfSg:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=LMPNVUWUfBc:W2G2F8tHfSg:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=LMPNVUWUfBc:W2G2F8tHfSg:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=LMPNVUWUfBc:W2G2F8tHfSg:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/LMPNVUWUfBc" height="1" width="1"/> 8 Nov 2009 19:23:15 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15531 http://www.electroportal.net/phpBB2/viewtopic.php?t=15531 http://feedproxy.google.com/~r/ElectroPortal/~3/Rp3zmnr2I40/robot_ampliabile <img class="imageArticle" width="200" src="http://www.electroportal.net/image_resize.php?width=200&id=1990}" style="border: 1px solid rgb(204, 204, 204); padding: 5px; background: rgb(250, 250, 250); margin-right: 10px; float: left; margin-top: 6px;" /> Ecco una piccola guida per <b>costruire un robot</b> controllato da un <b>PIC 16F877</b> programmato interamente in <b>C</b> . Questo robot &egrave; completamente ampliabile, e quindi &egrave; <b>personalizzabile</b> al massimo ed &egrave; possibile aggiungere qualsiasi tipo di <b>sensore</b> e <b>funzione</b> . Il progetto &egrave; adatto a tutti coloro che hanno sempre desiderato costruire un robot. In questa pagina vedremo come preparare una base solida al nostro futuro robot e i primissimi circuiti che lo faranno funzionare. Il progetto &egrave; <b>adatto ai principianti</b> che si avvicinano al mondo della robotica-elettronica. Infatti spiegher&ograve; in modo chiaro e semplice tutti i vari procedimenti, e se avrete bisogno di chiarimenti su qualche dubbio o quant'altro non esitate a chiedere nei commenti o con un <b><a href="http://www.electroportal.net/phpBB2/ucp.php?i=pm&amp;mode=compose&amp;u=110276" class="external text" title="http://www.electroportal.net/phpBB2/ucp.php?i=pm&amp;mode=compose&amp;u=110276" rel="nofollow">MP</a></b> . [...] <p><b><a href="http://www.electroportal.net/galaxi93/wiki/robot_ampliabile">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Rp3zmnr2I40:vNbSn45gPwQ:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Rp3zmnr2I40:vNbSn45gPwQ:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Rp3zmnr2I40:vNbSn45gPwQ:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Rp3zmnr2I40:vNbSn45gPwQ:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=Rp3zmnr2I40:vNbSn45gPwQ:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Rp3zmnr2I40:vNbSn45gPwQ:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Rp3zmnr2I40:vNbSn45gPwQ:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Rp3zmnr2I40:vNbSn45gPwQ:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/Rp3zmnr2I40" height="1" width="1"/> 7 Nov 2009 22:06:49 +0100 http://www.electroportal.net/galaxi93/wiki/robot_ampliabile http://www.electroportal.net/galaxi93/wiki/robot_ampliabile http://feedproxy.google.com/~r/ElectroPortal/~3/cQzfTYAUsDY/viewtopic.php Per la serie: risolviamo insieme agli esperti di Electroportal alcuni esercizi di fisica [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15517">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cQzfTYAUsDY:61AVrqpLsg8:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cQzfTYAUsDY:61AVrqpLsg8:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cQzfTYAUsDY:61AVrqpLsg8:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cQzfTYAUsDY:61AVrqpLsg8:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=cQzfTYAUsDY:61AVrqpLsg8:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cQzfTYAUsDY:61AVrqpLsg8:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cQzfTYAUsDY:61AVrqpLsg8:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=cQzfTYAUsDY:61AVrqpLsg8:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/cQzfTYAUsDY" height="1" width="1"/> 7 Nov 2009 35:00:58 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15517 http://www.electroportal.net/phpBB2/viewtopic.php?t=15517 http://feedproxy.google.com/~r/ElectroPortal/~3/Muxb-xO5qdQ/viewtopic.php Un regolatore di potenza in PWM con due NE 555 [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15424">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Muxb-xO5qdQ:x9uJYJG4EPI:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Muxb-xO5qdQ:x9uJYJG4EPI:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Muxb-xO5qdQ:x9uJYJG4EPI:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Muxb-xO5qdQ:x9uJYJG4EPI:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=Muxb-xO5qdQ:x9uJYJG4EPI:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Muxb-xO5qdQ:x9uJYJG4EPI:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Muxb-xO5qdQ:x9uJYJG4EPI:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=Muxb-xO5qdQ:x9uJYJG4EPI:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/Muxb-xO5qdQ" height="1" width="1"/> 6 Nov 2009 32:23:33 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15424 http://www.electroportal.net/phpBB2/viewtopic.php?t=15424 http://feedproxy.google.com/~r/ElectroPortal/~3/BwtuMut4N88/viewtopic.php Come riconoscere un componente ed utilizzarlo per gestire accensioni e spegnimenti su una Arduino o su un Pic. [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15405">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BwtuMut4N88:EuuLoeyOoAU:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BwtuMut4N88:EuuLoeyOoAU:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BwtuMut4N88:EuuLoeyOoAU:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BwtuMut4N88:EuuLoeyOoAU:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=BwtuMut4N88:EuuLoeyOoAU:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BwtuMut4N88:EuuLoeyOoAU:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BwtuMut4N88:EuuLoeyOoAU:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BwtuMut4N88:EuuLoeyOoAU:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/BwtuMut4N88" height="1" width="1"/> 5 Nov 2009 39:12:03 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15405 http://www.electroportal.net/phpBB2/viewtopic.php?t=15405 http://feedproxy.google.com/~r/ElectroPortal/~3/4jgSzeyb6mg/viewtopic.php Un classico progetto con molte considerazioni che è bene sapere [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15443">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=4jgSzeyb6mg:GnO5sB-BWA0:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=4jgSzeyb6mg:GnO5sB-BWA0:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=4jgSzeyb6mg:GnO5sB-BWA0:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=4jgSzeyb6mg:GnO5sB-BWA0:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=4jgSzeyb6mg:GnO5sB-BWA0:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=4jgSzeyb6mg:GnO5sB-BWA0:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=4jgSzeyb6mg:GnO5sB-BWA0:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=4jgSzeyb6mg:GnO5sB-BWA0:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/4jgSzeyb6mg" height="1" width="1"/> 5 Nov 2009 04:11:55 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15443 http://www.electroportal.net/phpBB2/viewtopic.php?t=15443 http://feedproxy.google.com/~r/ElectroPortal/~3/ze9Jw1O1lr0/articolo24 <img class="imageArticle" width="200" src="http://www.electroportal.net/image_resize.php?width=200&id=1959}" style="border: 1px solid rgb(204, 204, 204); padding: 5px; background: rgb(250, 250, 250); margin-right: 10px; float: left; margin-top: 6px;" /> Nel Forum di Electroportal vengono spesso chieste informazioni per realizzare circuiti di temporizzazione, circuiti quasi sempre basati sull'ormai vetusto (ma sempre utile) <b>NE555</b> . Un <b>timer</b> &egrave; semplicemente un dispositivo che d&agrave; in uscita (OUT) un impulso con fronte d'onda ritardato rispetto all'impulso d'ingresso (IN): [Immagine] Si vuole qui proporre, per i casi in cui fosse richiesta una elevata precisione nel tempo di ritardo, un' <b>alternativa digitale</b> , cio&egrave; basata sul conteggio di un determinato numero d'impulsi di una frequenza costante. Di per s&eacute;, una soluzione del genere non &egrave; (come spesso erroneamente si crede) pi&ugrave; "precisa" di una soluzione analogica: dipende essenzialmente dal valore della frequenza d'impulsi, ma soprattuttp dalla sua <b>costanza nel tempo</b> . [...] <p><b><a href="http://www.electroportal.net/g.schgor/wiki/articolo24">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ze9Jw1O1lr0:BtZHxwFicLc:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ze9Jw1O1lr0:BtZHxwFicLc:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ze9Jw1O1lr0:BtZHxwFicLc:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ze9Jw1O1lr0:BtZHxwFicLc:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=ze9Jw1O1lr0:BtZHxwFicLc:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ze9Jw1O1lr0:BtZHxwFicLc:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ze9Jw1O1lr0:BtZHxwFicLc:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ze9Jw1O1lr0:BtZHxwFicLc:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/ze9Jw1O1lr0" height="1" width="1"/> 2 Nov 2009 56:00:17 +0100 http://www.electroportal.net/g.schgor/wiki/articolo24 http://www.electroportal.net/g.schgor/wiki/articolo24 http://feedproxy.google.com/~r/ElectroPortal/~3/vj43DEcmMw8/viewtopic.php Piccolo progetto per una segnalazione di carica [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15071">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=vj43DEcmMw8:ZgvSm2kclSk:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=vj43DEcmMw8:ZgvSm2kclSk:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=vj43DEcmMw8:ZgvSm2kclSk:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=vj43DEcmMw8:ZgvSm2kclSk:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=vj43DEcmMw8:ZgvSm2kclSk:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=vj43DEcmMw8:ZgvSm2kclSk:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=vj43DEcmMw8:ZgvSm2kclSk:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=vj43DEcmMw8:ZgvSm2kclSk:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/vj43DEcmMw8" height="1" width="1"/> 1 Nov 2009 10:00:18 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15071 http://www.electroportal.net/phpBB2/viewtopic.php?t=15071 http://feedproxy.google.com/~r/ElectroPortal/~3/d9ED3ejBEu0/viewtopic.php Come si può immaginare non tutti saranno d'accordo sul "finalmente". [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15383">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=d9ED3ejBEu0:CyegBLMKCKU:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=d9ED3ejBEu0:CyegBLMKCKU:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=d9ED3ejBEu0:CyegBLMKCKU:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=d9ED3ejBEu0:CyegBLMKCKU:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=d9ED3ejBEu0:CyegBLMKCKU:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=d9ED3ejBEu0:CyegBLMKCKU:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=d9ED3ejBEu0:CyegBLMKCKU:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=d9ED3ejBEu0:CyegBLMKCKU:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/d9ED3ejBEu0" height="1" width="1"/> 30 Oct 2009 57:18:20 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15383 http://www.electroportal.net/phpBB2/viewtopic.php?t=15383 http://feedproxy.google.com/~r/ElectroPortal/~3/ZDXigx1GGwQ/viewtopic.php Criteri e dispositivi per controllare la temperatura di un forno [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15056">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ZDXigx1GGwQ:BtjRjy7PbSw:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ZDXigx1GGwQ:BtjRjy7PbSw:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ZDXigx1GGwQ:BtjRjy7PbSw:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ZDXigx1GGwQ:BtjRjy7PbSw:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=ZDXigx1GGwQ:BtjRjy7PbSw:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ZDXigx1GGwQ:BtjRjy7PbSw:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ZDXigx1GGwQ:BtjRjy7PbSw:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ZDXigx1GGwQ:BtjRjy7PbSw:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/ZDXigx1GGwQ" height="1" width="1"/> 30 Oct 2009 09:18:44 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15056 http://www.electroportal.net/phpBB2/viewtopic.php?t=15056 http://feedproxy.google.com/~r/ElectroPortal/~3/BtVZIEDHE2s/viewtopic.php Costruire un caricabatteria portatile con generatore ...a manovella [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15369">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BtVZIEDHE2s:SR1xWDlI5GI:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BtVZIEDHE2s:SR1xWDlI5GI:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BtVZIEDHE2s:SR1xWDlI5GI:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BtVZIEDHE2s:SR1xWDlI5GI:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=BtVZIEDHE2s:SR1xWDlI5GI:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BtVZIEDHE2s:SR1xWDlI5GI:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BtVZIEDHE2s:SR1xWDlI5GI:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=BtVZIEDHE2s:SR1xWDlI5GI:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/BtVZIEDHE2s" height="1" width="1"/> 29 Oct 2009 05:18:25 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15369 http://www.electroportal.net/phpBB2/viewtopic.php?t=15369 http://feedproxy.google.com/~r/ElectroPortal/~3/APBirZiRyoA/articolo3 <img class="imageArticle" width="200" src="http://www.electroportal.net/image_resize.php?width=200&id=1950}" style="border: 1px solid rgb(204, 204, 204); padding: 5px; background: rgb(250, 250, 250); margin-right: 10px; float: left; margin-top: 6px;" /> Si premette che per la realizzazione dei suddetti esempi &egrave; stato utilizzato un <b>foglio di calcolo Excel</b>. Quando una formula fa riferimento direttamente o indirettamente alla propria cella, si verifica un <b>riferimento circolare</b> e il calcolo non viene eseguito. E&rsquo; possibile, tuttavia, consentire il funzionamento di un riferimento circolare attivando la casella di controllo <b>Iterazioni</b> . In questo caso il calcolo viene eseguito utilizzando i risultati dell'iterazione precedente. Si mostrer&agrave; come tale procedura sia utilissima per risolvere, con pochissime formule, molti calcoli iterativi: <b> integrazioni</b> di funzioni, calcolo <b>radici</b> di equazioni, calcolo <b>equazioni differenziali</b> , ecc.. Consentiamo, quindi, il funzionamento di un riferimento circolare. [...] <p><b><a href="http://www.electroportal.net/giovannicolletti/wiki/articolo3">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=APBirZiRyoA:pxqLACkggzs:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=APBirZiRyoA:pxqLACkggzs:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=APBirZiRyoA:pxqLACkggzs:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=APBirZiRyoA:pxqLACkggzs:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=APBirZiRyoA:pxqLACkggzs:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=APBirZiRyoA:pxqLACkggzs:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=APBirZiRyoA:pxqLACkggzs:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=APBirZiRyoA:pxqLACkggzs:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/APBirZiRyoA" height="1" width="1"/> 29 Oct 2009 30:00:06 +0100 http://www.electroportal.net/giovannicolletti/wiki/articolo3 http://www.electroportal.net/giovannicolletti/wiki/articolo3 http://feedproxy.google.com/~r/ElectroPortal/~3/ABVTzEVE96A/viewtopic.php Sezione del collegamento a terra del centro stella [...] <p><b><a href="http://www.electroportal.net/phpBB2/viewtopic.php?t=15374">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ABVTzEVE96A:ruiPNYpvZnE:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ABVTzEVE96A:ruiPNYpvZnE:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ABVTzEVE96A:ruiPNYpvZnE:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ABVTzEVE96A:ruiPNYpvZnE:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=ABVTzEVE96A:ruiPNYpvZnE:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ABVTzEVE96A:ruiPNYpvZnE:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ABVTzEVE96A:ruiPNYpvZnE:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ABVTzEVE96A:ruiPNYpvZnE:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/ABVTzEVE96A" height="1" width="1"/> 28 Oct 2009 13:10:58 +0100 http://www.electroportal.net/phpBB2/viewtopic.php?t=15374 http://www.electroportal.net/phpBB2/viewtopic.php?t=15374 http://feedproxy.google.com/~r/ElectroPortal/~3/ImsxdBjKgMA/eolico <img class="imageArticle" width="200" src="http://www.electroportal.net/image_resize.php?width=200&id=1940}" style="border: 1px solid rgb(204, 204, 204); padding: 5px; background: rgb(250, 250, 250); margin-right: 10px; float: left; margin-top: 6px;" /> La <b>fonte eolica</b> , assieme alle biomasse, &egrave; una di quelle in massima ascesa. Il trend di crescita &egrave; equivalente al <b> fotovoltaico</b> , con la differenza che in questo caso si hanno potenze di circa <b>due ordini di grandezza superiori</b> . L' "eolico" in un certo senso, &egrave; legato all' <b> irraggiamento solare</b> ; difatti <b>il vento</b> &egrave; il risultato dei <b>moti convettivi</b> e delle espansioni dell' aria conseguenti al <b> riscaldamento disomogeneo</b> delle <b>masse d' aria</b> presenti nell' atmosfera. Tutto ci&ograve; sta ad indicare che nell' anno, la disponibilit&agrave; della fonte eolica &egrave; prossima a quella della fonte solare. Quindi, per ogni <b>kW installato</b> di potenza eolica, si ottengono all' incirca dai <b>1400 ai 1600 kWh/anno</b> . Le <b>turbine eoliche</b> sono solitamente classificate con i seguenti criteri: [...] <p><b><a href="http://www.electroportal.net/nifa/wiki/eolico">Continua a leggere</a></b></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ImsxdBjKgMA:WZD_ql1GJNc:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ImsxdBjKgMA:WZD_ql1GJNc:jRQSRAGi7ug"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=jRQSRAGi7ug" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ImsxdBjKgMA:WZD_ql1GJNc:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ImsxdBjKgMA:WZD_ql1GJNc:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?i=ImsxdBjKgMA:WZD_ql1GJNc:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ImsxdBjKgMA:WZD_ql1GJNc:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=qj6IDK7rITs" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ImsxdBjKgMA:WZD_ql1GJNc:8qPgz74sOl0"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=8qPgz74sOl0" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/ElectroPortal?a=ImsxdBjKgMA:WZD_ql1GJNc:KM4XhdK28Mk"><img src="http://feeds.feedburner.com/~ff/ElectroPortal?d=KM4XhdK28Mk" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/ElectroPortal/~4/ImsxdBjKgMA" height="1" width="1"/> 27 Oct 2009 22:00:41 +0100 http://www.electroportal.net/nifa/wiki/eolico http://www.electroportal.net/nifa/wiki/eolico