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 <title><![CDATA[开关电源&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ..]]></title>
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 <description><![CDATA[Latest 50 replies of 开关电源&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ..]]></description>
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 <description><![CDATA[电子开关电源]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260576.html]]></link>
 <author><![CDATA[zgf889]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 May 2012 02:35:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[现在开关电源功能好，越来越便宜了，肯定是首选了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260567.html]]></link>
 <author><![CDATA[scxclzyzb]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 May 2012 02:28:16 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[最好是用开关电源，电压稳定，还具有短路保护功能，价格也不高]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260479.html]]></link>
 <author><![CDATA[manhuazheng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 May 2012 00:34:56 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[开关电源，稳定，可靠，安全。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260448.html]]></link>
 <author><![CDATA[董工]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 May 2012 00:01:07 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[开关电源性能好，负载侧短路时一般情况都没事，我用过的大不了保险管烧掉。整流堆最常见的是环境温度高/负载短路一下电容就爆掉或桥堆坏掉，我的经验而已 [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260445.html]]></link>
 <author><![CDATA[hxw1980]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 May 2012 23:54:18 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[要用于传感器24V&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;，肯定用开关电源好。电压稳定，有保护&nbsp;&nbsp;功能
如果单用中间继电器，无所谓。不过最好跟楼上所说的，至少要用一个 2200 UF/50V 电容滤波一下。&nbsp;&nbsp;&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260441.html]]></link>
 <author><![CDATA[meipingboy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 May 2012 23:43:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[开关电源又名稳压电源在不过载的情况下能输出高质量的直流电，而用变压器加整流桥出来的直流电不纯，有压降，最好用滤波电容滤波一下。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260429.html]]></link>
 <author><![CDATA[果丁]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 May 2012 23:01:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[开关电源保护电路好。
24V&nbsp;&nbsp;就整流没用的，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260426.html]]></link>
 <author><![CDATA[bocc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 May 2012 22:52:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[为什么呢&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [s:23]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260375.html]]></link>
 <author><![CDATA[三菱重工]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 May 2012 15:06:13 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[开关电源吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374772#1260364.html]]></link>
 <author><![CDATA[rpgdiy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 May 2012 14:56:44 +0000]]></pubdate>
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