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 <title><![CDATA[一个奇怪的故障现象]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127893.html]]></link>
 <description><![CDATA[Latest 50 replies of 一个奇怪的故障现象]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Mon, 11 May 2026 16:08:57 +0000]]></lastBuildDate>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习一下]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127893#1170549.html]]></link>
 <author><![CDATA[梁国全]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 24 Nov 2011 00:44:40 +0000]]></pubdate>
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 <description><![CDATA[很正常的，空载和负载的时候是不一样的，不用为什么了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127893#1170518.html]]></link>
 <author><![CDATA[xuqingshi]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Nov 2011 23:09:40 +0000]]></pubdate>
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 <description><![CDATA[看附图，第一路输出加上负载后电压下降，变压器磁通量下降，反馈至初级后提高脉冲输入频率以提高次级输出电压，有负载端次级电压回到额定值，但空载端无负载，上升的电压无法消耗积累在滤波电容上形成你所述现象。 

[attachment=74905]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127893#1170493.html]]></link>
 <author><![CDATA[zs8823]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Nov 2011 17:40:28 +0000]]></pubdate>
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 <description><![CDATA[真的会这样，还没留意过呢，请讲讲详细的原理呢，好不]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127893#1170413.html]]></link>
 <author><![CDATA[钶潜]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Nov 2011 14:27:53 +0000]]></pubdate>
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 <description><![CDATA[这种现象就是开关电源的种状态， [s:21]&nbsp;&nbsp;[s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127893#1169845.html]]></link>
 <author><![CDATA[kissko]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Nov 2011 02:59:02 +0000]]></pubdate>
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 <description><![CDATA[正常，-15v是空载，所以正端有负载而且比较大时，负端空载时电压就会升高。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127893#1168974.html]]></link>
 <author><![CDATA[zyhefei]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 22 Nov 2011 00:41:27 +0000]]></pubdate>
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