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 <title><![CDATA[如何选择开关电源]]></title>
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 <description><![CDATA[Latest 50 replies of 如何选择开关电源]]></description>
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 <description><![CDATA[哦，谢谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51249#680471.html]]></link>
 <author><![CDATA[蝶恋花]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Dec 2009 03:18:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[计算用电器同时工作时的功率，然后选1.2---1.5倍之间功率开关就可以了。
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51249#680461.html]]></link>
 <author><![CDATA[13609073404]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Dec 2009 03:07:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是不是把所有感应器、电磁阀及别的用到开关电源的元器件功率都累加起来算呀？我是个新手，不太懂。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51249#680371.html]]></link>
 <author><![CDATA[蝶恋花]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Dec 2009 00:57:29 +0000]]></pubdate>
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 <description><![CDATA[1看输入输出电压,2看输出电流(负载电流要比电源小点)留出余量.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51249#680351.html]]></link>
 <author><![CDATA[spg1003]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Dec 2009 00:03:51 +0000]]></pubdate>
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 <description><![CDATA[看负载多大吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51249#680180.html]]></link>
 <author><![CDATA[曾志勇]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 30 Nov 2009 13:24:27 +0000]]></pubdate>
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