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 <title><![CDATA[请教PNP转NPN如何转]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798.html]]></link>
 <description><![CDATA[Latest 50 replies of 请教PNP转NPN如何转]]></description>
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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[中间继电器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1413639.html]]></link>
 <author><![CDATA[施卫]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 25 Feb 2013 07:33:17 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[新手学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1413010.html]]></link>
 <author><![CDATA[hblovetian]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 23 Feb 2013 06:00:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[224xp本体输出的是高电平。用个电阻就可转换
好奇的是设计方案时是如何设计的？？？？？？？？？？？？？？？？？？？？/]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1412955.html]]></link>
 <author><![CDATA[tkggtdkjpl]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 23 Feb 2013 03:39:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用pc817来转就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1412187.html]]></link>
 <author><![CDATA[yamqq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 Feb 2013 03:26:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[最好做个转换器，上边都有图了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1411809.html]]></link>
 <author><![CDATA[xiejun8103]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 20 Feb 2013 00:38:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[都可以用的，只是控制端不一样]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1411672.html]]></link>
 <author><![CDATA[spiffy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 19 Feb 2013 07:22:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PLC输出的脉冲无NPN和PNP之分，只是电平高点，只要加个电阻就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1411579.html]]></link>
 <author><![CDATA[lijianmin123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 19 Feb 2013 02:38:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PLC的正输出串个1.5K的电阻与伺服光耦输入的正极连接,负输出直接与伺服光耦负极连接就行了....]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1411562.html]]></link>
 <author><![CDATA[kyy80]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 19 Feb 2013 02:12:07 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[简单做法，加一个上拉电阻就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1411544.html]]></link>
 <author><![CDATA[selema]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 19 Feb 2013 01:21:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[再加两个三极管就可以实现的吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1411055.html]]></link>
 <author><![CDATA[luospring]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 16 Feb 2013 14:13:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[url]http://www.ymmfa.com/read-gktid-54140.html[/url]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1410946.html]]></link>
 <author><![CDATA[ywx163]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 15 Feb 2013 15:57:11 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[联系我，我可以给你做个转换板！QQ 418513387]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419798#1410944.html]]></link>
 <author><![CDATA[xin418513387]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 15 Feb 2013 15:17:46 +0000]]></pubdate>
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