<?xml version="1.0" encoding="gbk"?>
<rss version="2.0">
<channel>
 <title><![CDATA[NPN分析，来个大腿]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031.html]]></link>
 <description><![CDATA[Latest 50 replies of NPN分析，来个大腿]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
 <generator><![CDATA[www.ymmfa.com]]></generator>
 <lastBuildDate><![CDATA[Wed, 29 Apr 2026 21:49:06 +0000]]></lastBuildDate>
  <image>
 <url><![CDATA[images/rss.gif]]></url>
 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
  </image>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[紅色箭頭那邊是光耦合元件
照你2F所發的圖來看
使用內部電源NPN觸發時
外部是跟COM連接由5V供電給順向的發光二極體去觸發光電晶體

而使用外部電源時
PW不論是+24V或是0V
只要信號腳位與PW有24V電壓
就會有一個二極體順向導通觸發光電晶體
所以PNP跟NPN通用]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119724.html]]></link>
 <author><![CDATA[小侯]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 05:35:14 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第6楼无良！！于2020-05-18 12:14发表的&nbsp;&nbsp;:
光线作为基极？
[/quote]
那整個方塊代表光耦合器，例如PC817。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119714.html]]></link>
 <author><![CDATA[twingo49]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 04:23:46 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[光线作为基极？[quote]引用第4楼twingo49于2020-05-18 12:12发表的&nbsp;&nbsp;:
那兩個箭頭代表光線
[/quote]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119709.html]]></link>
 <author><![CDATA[无良！！]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 04:14:11 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是的，放大器支持两种，PLC区分开NPN和PNP，看PLC的三极管是NPN还是PNP。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119707.html]]></link>
 <author><![CDATA[进击的工控人]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 04:12:21 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[那兩個箭頭代表光線]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119706.html]]></link>
 <author><![CDATA[twingo49]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 04:12:07 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[道友何出此言[quote]引用第2楼linzhenfu于2020-05-18 12:02发表的&nbsp;&nbsp;:
两种都可以，通用！
[/quote]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119705.html]]></link>
 <author><![CDATA[无良！！]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 04:11:13 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[两种都可以，通用！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119702.html]]></link>
 <author><![CDATA[linzhenfu]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 04:02:18 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[与PLC连接的示意图]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1682031#2119701.html]]></link>
 <author><![CDATA[无良！！]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 May 2020 03:57:00 +0000]]></pubdate>
</item>
</channel></rss>