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            <title><![CDATA[继电器的工作原理及驱动电路]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2023/202307112177544.html</link>
            <description><![CDATA[继电器是具有隔离功能的自动开关元件，广泛应用于遥控、遥测、通讯、自动控制、机电一体化及电力电了设备中，是最重要的控制元件之一。继电器实际上是用较小的电流去控制较大电流的一种“自动开关”。故在电路中起着自动调节、安全保护、转换电路等作用。]]></description>
            <pubDate>Tue, 11 Jul 2023 09:05:17</pubDate>
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            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2023/202307112177544.html</guid>
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            <title><![CDATA[电磁继电器和逻辑门的电路示意图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2022/202210091902094.html</link>
            <description><![CDATA[电磁继电器和两个逻辑门的示意图。图1显示了一个单极继电器。只有当线圈被电流激活时，公共(C)抽头才会改变其位置，从而与NO端子接触。图2显示了具有两组触点的双极继电器。]]></description>
            <pubDate>Sun, 09 Oct 2022 16:27:18</pubDate>
            <category>继电器电路图</category>
            <author>电子技术控</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2022/202210091902094.html</guid>
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            <title><![CDATA[继电器电路图怎么看（NPN达灵顿继电器开关电路/晶体管继电驱动电路/光耦驱动继电器电路）]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2021/202111031726719.html</link>
            <description><![CDATA[继电器开关电路的设计和类型非常庞大，但是许多小型电子项目都使用晶体管和MOSFET作为其主要开关设备，因为该晶体管可以从各种输入源提供对继电器线圈的快速DC开关（ON-OFF）控制，因此这是一些更常用的继电器开关方式的一小部分。]]></description>
            <pubDate>Wed, 03 Nov 2021 17:11:47</pubDate>
            <category>继电器电路图</category>
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            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2021/202111031726719.html</guid>
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            <title><![CDATA[三款磁保持继电器驱动电路]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2019/201911251121821.html</link>
            <description><![CDATA[本文主要阐述了三款磁保持继电器驱动电路。]]></description>
            <pubDate>Mon, 25 Nov 2019 14:44:57</pubDate>
            <category>继电器电路图</category>
            <author>网络整理</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2019/201911251121821.html</guid>
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            <title><![CDATA[速度继电器结构_速度继电器制动电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2019/20190624963124.html</link>
            <description><![CDATA[本文详细介绍了速度继电器结构图及速度继电器控制异步电动机能耗制动电路图。]]></description>
            <pubDate>Mon, 24 Jun 2019 16:28:51</pubDate>
            <category>继电器电路图</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2019/20190624963124.html</guid>
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            <title><![CDATA[直流和交流固态继电器电路原理图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2019/20190624962741.html</link>
            <description><![CDATA[光耦MOC3063的输入端为恒流源电路，这个恒流源电路的形式在之前的电路分析中有讲过相似的实例。在光耦输入控制端采用恒流源电路可以保证控制电压大范围内变动时，光电耦合器可靠地工作。]]></description>
            <pubDate>Mon, 24 Jun 2019 10:27:55</pubDate>
            <category>继电器电路图</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2019/20190624962741.html</guid>
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            <title><![CDATA[光耦驱动继电器电路图大全（光电耦合器/ULN2803/开关电路）]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2018/20180510675467.html</link>
            <description><![CDATA[本文主要介绍了光耦驱动继电器电路图大全（光电耦合器/ULN2803 /开关电路）。继电器开关模块由TLP521-4 、ULN2803 和SRD -12VDC 及三极管构成，由微控制器输出的信号经过三极管构成的开关电路送往TLP521 -4 光耦芯片再通过ULN2803 达林顿管的放大后用来驱动SRD-12DC 继电器， 进而达到控制空调的各种开关的作用。]]></description>
            <pubDate>Thu, 10 May 2018 17:25:05</pubDate>
            <category>继电器电路图</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2018/20180510675467.html</guid>
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            <title><![CDATA[继电器的工作原理以及驱动电路解析 —电路图天天读（245）]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2015/20150915383636.html</link>
            <description><![CDATA[继电器是一种电子控制器件，它具有控制系统（又称输入回路）和被控制系统（又称输出回路），通常应用于自动控制电路中，它实际上是用较小的电流去控制较大电流的一种“自动开关”。故在电路中起着自动调节、安全保护、转换电路等作用。]]></description>
            <pubDate>Tue, 15 Sep 2015 10:59:35</pubDate>
            <category>继电器电路图</category>
            <author>Ida</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2015/20150915383636.html</guid>
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            <title><![CDATA[JS20单结晶体管时间继电器电路设计]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2014/20141120359092.html</link>
            <description><![CDATA[电路由延时环节、鉴幅器、输出电路、电源和指示灯五部分组成。电源的稳压部分由电阻R，和稳压管vs构成，为延时环节供电，输出电路中的晶闸管VTH和继电器。KA则由半波整流电路直接供电。]]></description>
            <pubDate>Thu, 20 Nov 2014 10:56:32</pubDate>
            <category>继电器电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2014/20141120359092.html</guid>
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            <title><![CDATA[12V转交流220V逆变器工作原理]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20111009220435.html</link>
            <description><![CDATA[今天我们来介绍一款逆变器(见图1)主要由MOS场效应管，普通电源变压器构成。其输出功率取决于MOS场效应管和电源变压器的功率，免除了烦琐的变压器绕制，适合电子爱好者业余制作中]]></description>
            <pubDate>Sun, 09 Oct 2011 10:58:21</pubDate>
            <category>继电器电路图</category>
            <author>叶子</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20111009220435.html</guid>
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            <title><![CDATA[继电器的三种附加电路]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110929218975.html</link>
            <description><![CDATA[1. 继电器 串联RC电路：电路形式如图1，这种形式主要应用于继电器的额定工作电压低于电源电压的电路中。当电路闭合时，继电器线圈由于自感现象会产生电动势阻碍线圈中电流的增大]]></description>
            <pubDate>Thu, 29 Sep 2011 13:12:53</pubDate>
            <category>继电器电路图</category>
            <author>小兰</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110929218975.html</guid>
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            <title><![CDATA[无电感式模拟继电器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110929218974.html</link>
            <description><![CDATA[图中220V电源经负载RL、R1、D1～D4、ZD1，为Q4、Q3在正负半周轮流提供偏置；同时经R3、D5～D8为光电耦合器Q1提供电源。当前级TTL电路输出高电平信号时，光电耦合器在市电正半周内导通，]]></description>
            <pubDate>Thu, 29 Sep 2011 13:05:49</pubDate>
            <category>继电器电路图</category>
            <author>小兰</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110929218974.html</guid>
        </item><item>
            <title><![CDATA[带自锁功能的光控继电器开关电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110923217777.html</link>
            <description><![CDATA[如图所示电路因用了达林顿型光敏三极管，故简化了放大电路，仅用一只3DG型晶体管即可驱动继电器。带自锁功能的光控 继电器 开关电路图:]]></description>
            <pubDate>Fri, 23 Sep 2011 10:53:14</pubDate>
            <category>继电器电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110923217777.html</guid>
        </item><item>
            <title><![CDATA[固态继电器电路过压保护电路]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110909215134.html</link>
            <description><![CDATA[当固态 继电器 SSR用于驱动感性负载时，在电源接通与断开的瞬间会产生较高的浪涌电压，为了保护SSR内部的双向可控硅元件不致过电压而损坏或误动作，可在SSR的交流输出端并接一只]]></description>
            <pubDate>Fri, 09 Sep 2011 18:26:22</pubDate>
            <category>继电器电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110909215134.html</guid>
        </item><item>
            <title><![CDATA[时间继电器原理图及其作用]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110629204209.html</link>
            <description><![CDATA[本文介绍时间继电器原理图及其作用，时间继电器是一种使用在较低的电压或较小电流的电路上，用来接通或切断较高电压、较大电流的电路的电气元件，时间继电器的作用是作为简单程序控制]]></description>
            <pubDate>Fri, 04 Nov 2011 11:33:42</pubDate>
            <category>继电器电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110629204209.html</guid>
        </item><item>
            <title><![CDATA[JSZ7-T4C4A型延时继电器原理]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110123185461.html</link>
            <description><![CDATA[继电器线圈得电，220V市电加到、两端J1瞬动接点线圈得电并带动瞬动接点动作，压敏电阻RV起过压保护作用。AC220V市电再经过D1～D4桥式整流，R2限流、C1滤波后得25V左右的直流电。]]></description>
            <pubDate>Sun, 23 Jan 2011 10:54:25</pubDate>
            <category>继电器电路图</category>
            <author>发烧友</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2011/20110123185461.html</guid>
        </item><item>
            <title><![CDATA[单相系统的方向继电器接线图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100812221630.html</link>
            <description><![CDATA[先看在单相系统两侧电源下的接地短路，保护安装处的电流、电压分别为U，I。假设线路阻抗角为70°左右，所以方向继电器的最大灵敏角应选为70°。方向继电器的端子接线如图1所示]]></description>
            <pubDate>Thu, 12 Aug 2010 10:51:03</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100812221630.html</guid>
        </item><item>
            <title><![CDATA[光控晶闸管非自锁式光敏继电器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100331213897.html</link>
            <description><![CDATA[光控晶闸管非自锁式光敏继电器电路图
]]></description>
            <pubDate>Wed, 31 Mar 2010 17:40:32</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100331213897.html</guid>
        </item><item>
            <title><![CDATA[光控晶体管自锁式光敏继电器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100331213896.html</link>
            <description><![CDATA[光控晶体管自锁式光敏继电器电路图
]]></description>
            <pubDate>Wed, 31 Mar 2010 17:37:08</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100331213896.html</guid>
        </item><item>
            <title><![CDATA[光电池直控继电器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100331213895.html</link>
            <description><![CDATA[光电池直控继电器电路图
]]></description>
            <pubDate>Wed, 31 Mar 2010 17:35:54</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2010/20100331213895.html</guid>
        </item><item>
            <title><![CDATA[由传感器激活的继电器脉冲发生器]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100695006.html</link>
            <description><![CDATA[由传感器激活的继电器脉冲发生器

一个]]></description>
            <pubDate>Tue, 06 Oct 2009 11:40:04</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100695006.html</guid>
        </item><item>
            <title><![CDATA[延时继电器]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100695005.html</link>
            <description><![CDATA[延时继电器

&nbsp;
一个长时间使用的]]></description>
            <pubDate>Tue, 06 Oct 2009 11:36:22</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100695005.html</guid>
        </item><item>
            <title><![CDATA[固态继电器电路Ⅰ]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100695002.html</link>
            <description><![CDATA[固态继电器电路Ⅰ

合格对黑暗敏感的]]></description>
            <pubDate>Tue, 06 Oct 2009 11:31:53</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100695002.html</guid>
        </item><item>
            <title><![CDATA[固态继电器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100694998.html</link>
            <description><![CDATA[固态继电器电路

R1限制输入电流，Q1起到保护IC1的作用，D1为极性]]></description>
            <pubDate>Tue, 06 Oct 2009 11:27:10</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100694998.html</guid>
        </item><item>
            <title><![CDATA[固态闩锁继电器]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100694995.html</link>
            <description><![CDATA[固态闩锁继电器
]]></description>
            <pubDate>Tue, 06 Oct 2009 11:22:10</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009100694995.html</guid>
        </item><item>
            <title><![CDATA[精密的光敏继电器开关]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009092292893.html</link>
            <description><![CDATA[精密的光敏继电器开关

&nbsp;
在具有一个运算]]></description>
            <pubDate>Tue, 22 Sep 2009 16:55:31</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009092292893.html</guid>
        </item><item>
            <title><![CDATA[具有延迟作用的黑暗激活继电器]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009092292883.html</link>
            <description><![CDATA[具有延迟作用的黑暗激活继电器

可以用有延迟作用的]]></description>
            <pubDate>Tue, 22 Sep 2009 16:25:46</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009092292883.html</guid>
        </item><item>
            <title><![CDATA[家用电器外壳带电显示器]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009041851178.html</link>
            <description><![CDATA[
家用电器外壳带电显示器]]></description>
            <pubDate>Sat, 18 Apr 2009 11:47:27</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2009/2009041851178.html</guid>
        </item><item>
            <title><![CDATA[继电器逆变电路原理图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2007/200712226831.html</link>
            <description><![CDATA[


&nbsp;

]]></description>
            <pubDate>Sat, 22 Dec 2007 12:10:47</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/ctrlsc/relay/2007/200712226831.html</guid>
        </item><item>
            <title><![CDATA[用微机进行交流控制的固态继电器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/ctrlsc/relay/2007/200712186688.html</link>
            <description><![CDATA[用微机进行交流控制的固态继电器电路图：采用微机进行交流控制的固态继电器，微机输出加到光电耦合器的二极管上，经光电耦合器隔离后，光敏管输出送至零压]]></description>
            <pubDate>Tue, 18 Dec 2007 22:26:40</pubDate>
            <category>继电器电路图</category>
            <author>佚名</author>
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            <author>佚名</author>
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            <category>继电器电路图</category>
            <author>佚名</author>
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            <pubDate>Tue, 18 Dec 2007 22:22:46</pubDate>
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