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 <title><![CDATA[pwm和输出电流的关系]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229.html]]></link>
 <description><![CDATA[Latest 50 replies of pwm和输出电流的关系]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果只是讨论pwm输出，其他因素不考虑的话，HH ，没意思]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1089947.html]]></link>
 <author><![CDATA[niningtt]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 13 Jul 2011 06:17:41 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了 [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1089487.html]]></link>
 <author><![CDATA[温柔杀手]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 12 Jul 2011 09:55:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[占空比越大,平均电流值越大]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1087898.html]]></link>
 <author><![CDATA[shi2999]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 09 Jul 2011 12:32:49 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[方波面积怎么求啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1087892.html]]></link>
 <author><![CDATA[474419784]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 09 Jul 2011 12:27:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[就是用方波的面积除电压就等于电流]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1087413.html]]></link>
 <author><![CDATA[hongma110]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Jul 2011 14:27:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[输出负载固定，电压变化，欧姆定律 V=IR……]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1087377.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Jul 2011 13:44:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[和电流没有关系啊？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1087360.html]]></link>
 <author><![CDATA[474419784]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Jul 2011 13:24:45 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[F=1/T

D=Ton/T

Vs=Vp*D

T:周期

Ton：为ON的时间

F：频率

D：占空比

Vs：有效的工作电压

Vp：最大工作电压]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-113229#1087342.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Jul 2011 12:57:08 +0000]]></pubdate>
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