http://ca.wiki.guifi.net/w/index.php?action=history&feed=atom&title=Font_d%27alimentaci%C3%B3 2026-07-29T10:04:05Z Historial de revisió per a aquesta pàgina del wiki MediaWiki 1.22.0 http://ca.wiki.guifi.net/w/index.php?title=Font_d%27alimentaci%C3%B3&diff=3655&oldid=prev 2013-12-10T23:49:33Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">←Versió més antiga</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revisió de 23:49, 10 des 2013</td> </tr><tr><td colspan="2" class="diff-lineno">Línia 20:</td> <td colspan="2" class="diff-lineno">Línia 20:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Categoria:Maquinari]]</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Categoria:Maquinari]]</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[categoria:Energia]]</ins></div></td></tr> </table>

Al http://ca.wiki.guifi.net/w/index.php?title=Font_d%27alimentaci%C3%B3&diff=2517&oldid=prev 2012-04-23T16:57:07Z

<p>Es crea la pàgina amb «{{en desenvolupament}} == Per a routers == &#039;&#039;en desenvolupament&#039;&#039; == Per a ordinadors/servidors == Les fonts més eficients són les que tenen el corrector del facto...».</p> <p><b>Pàgina nova</b></p><div>{{en desenvolupament}}<br /> <br /> == Per a routers ==<br /> ''en desenvolupament''<br /> <br /> == Per a ordinadors/servidors ==<br /> Les fonts més eficients són les que tenen el corrector del factor d'energia (PFC).<br /> <br /> === Active PFC ===<br /> <br /> The preferable type of PFC is Active Power Factor Correction (Active PFC) since it provides more efficient power frequency. Because Active PFC uses a circuit to correct power factor, Active PFC is able to generate a theoretical power factor of over 95%. Active Power Factor Correction also markedly diminishes total harmonics, automatically corrects for AC input voltage, and is capable of a full range of input voltage. Since Active PFC is the more complex method of Power Factor Correction, it is more expensive to produce an Active PFC power supply.<br /> <br /> === Passive PFC ===<br /> <br /> The most common type of PFC is Passive Power Factor Correction (Passive PFC). Passive PFC uses a capacitive filter at the AC input to correct poor power factor. Passive PFC may be affected when environmental vibration occurs. Passive PFC requires that the AC input voltage be set manually. Passive PFC also does not use the full energy potential of the AC line.<br /> <br /> === Non-PFC ===<br /> <br /> Non-PFC power supplies are no longer recommended. In Europe, power supplies are now required to have either active PFC or passive PFC. <br /> <br /> [[Categoria:Maquinari]]</div>

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