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 <title><![CDATA[直流电变交流电怎么变啊？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868.html]]></link>
 <description><![CDATA[Latest 50 replies of 直流电变交流电怎么变啊？]]></description>
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 <description><![CDATA[他其实更变频器的原理是一样一样的.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#499291.html]]></link>
 <author><![CDATA[wangbin85]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 24 Apr 2009 02:12:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[利用逆变器直流变交流]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#498246.html]]></link>
 <author><![CDATA[勿忘我]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 23 Apr 2009 01:17:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[逆变原理，看后就懂了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#497524.html]]></link>
 <author><![CDATA[jinyan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 22 Apr 2009 07:35:28 +0000]]></pubdate>
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 <description><![CDATA[逆变器晶闸管选KKT系列的，IBGT，GTR都可以实现，驱动电路是必不可少]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#496797.html]]></link>
 <author><![CDATA[听海]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 21 Apr 2009 11:30:56 +0000]]></pubdate>
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 <description><![CDATA[听说过，具体不很清楚]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#493947.html]]></link>
 <author><![CDATA[huxupin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 18 Apr 2009 12:23:11 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[经直流母线再经可控硅IGBT　进行直变交　
利用二极管的通断　高频　输出具有规律的类似于正弦曲线的波形．]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#433844.html]]></link>
 <author><![CDATA[业绩电气]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Feb 2009 13:31:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[就是用逆变器就行了。 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#432910.html]]></link>
 <author><![CDATA[建筑人生]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 14 Feb 2009 11:52:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[顶一下！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#432904.html]]></link>
 <author><![CDATA[zhangshichao]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 14 Feb 2009 11:43:18 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[采用逆变器或变频器吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#387175.html]]></link>
 <author><![CDATA[chenyejia]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Dec 2008 16:04:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[逆变原理！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#386565.html]]></link>
 <author><![CDATA[cqs250]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Dec 2008 06:33:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我也想知道啊！
再详细点就好了！！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#386121.html]]></link>
 <author><![CDATA[plcxx]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Dec 2008 01:00:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用逆变器啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#385967.html]]></link>
 <author><![CDATA[jiouling]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 14 Dec 2008 14:20:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用逆变器就是直流变交流的啊网上搜一下]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#385607.html]]></link>
 <author><![CDATA[zuchaochen]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 14 Dec 2008 08:00:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[逆变器内的场管按一定规律轮流导通，轮流关闭就产生方波交流电]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#385598.html]]></link>
 <author><![CDATA[李磊88]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 14 Dec 2008 07:51:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[11楼说的有问题呀&nbsp;&nbsp;交流不仅有大小&nbsp;&nbsp;还要有方向变化 你的例子应该是脉动直流&nbsp;&nbsp;不是交流吧？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#379502.html]]></link>
 <author><![CDATA[jack007kkk]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 08 Dec 2008 12:11:14 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[其实我也想知道&nbsp;&nbsp; 主要是想知道用一个直流怎么解决3相交流的相位问题&nbsp;&nbsp; 单相的好理解&nbsp;&nbsp;3相的谁能通俗的讲下呀？靠几个开关错开时间差吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#379497.html]]></link>
 <author><![CDATA[jack007kkk]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 08 Dec 2008 12:09:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[为了了下载学习赚积分回！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#379416.html]]></link>
 <author><![CDATA[盐城兆洋]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 08 Dec 2008 11:23:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用半导体开关元件对直流源斩波即可输出交流]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#376424.html]]></link>
 <author><![CDATA[蓝杰]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 05 Dec 2008 07:24:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[啊！哪有这么快啊！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#376214.html]]></link>
 <author><![CDATA[mks]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 05 Dec 2008 03:50:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[很简单的问题,你根本没区分出,直流电和交流电的区别,&nbsp;&nbsp;&nbsp;&nbsp;你拿一节我们平时用的1.5V的干电池把他的负级接万用表表棒的一端,万用表打到交流挡的最低电压挡,拿根线在把正及的和万用表的另一端,通断,通断的试一下,假设你用手通断的频率是50HZ的话,那么你就把直流电变成交流电了,交流电的电压是1.5V,&nbsp ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#372309.html]]></link>
 <author><![CDATA[zwz579]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 01 Dec 2008 09:38:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[顶呀1！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#371425.html]]></link>
 <author><![CDATA[wangrong2007]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 30 Nov 2008 11:20:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[上网搜搜逆变器吧，可能有很多介绍的！！！
下面的是百度知道里的逆变器的介绍：
[url]http://baike.baidu.com/view/174111.htm[/url]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#370929.html]]></link>
 <author><![CDATA[tiger86]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 30 Nov 2008 05:07:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21] 逆变器就是直流变交流的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#370786.html]]></link>
 <author><![CDATA[wj800220]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 30 Nov 2008 02:37:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:17] LZ学习学习吧--------]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#370561.html]]></link>
 <author><![CDATA[psj]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 29 Nov 2008 15:39:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢各位师傅，我只是想知道是怎么变的！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#368836.html]]></link>
 <author><![CDATA[mks]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 06:07:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[电压多高，单相还是三相]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#368813.html]]></link>
 <author><![CDATA[liuhanqi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 05:44:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果是要单相的交流，还可以用逆变器，最常见的就是电脑等用的UPS不间断电源。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#368722.html]]></link>
 <author><![CDATA[guochunyi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 04:19:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不是很理解，但还是要谢谢你。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#368637.html]]></link>
 <author><![CDATA[mks]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 02:59:37 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[变频器的原理　　就是经直流母线再经可控硅IGBT　进行直变交　
就是利用二极管的通断　高频　输出具有规律的类似于正弦曲线的波形．]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25868#368630.html]]></link>
 <author><![CDATA[tjjshd]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 02:56:14 +0000]]></pubdate>
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