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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">NPN与PNP传感器有何区别？ </h1> <p class="xg1"> 时间：2016-10-13 08:39<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(980)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=4917&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>涨知识了！NPN与PNP传感器有何区别？NPN-NO型在没有信号触发时，输出线是悬空的，就是VCC电源线和out线断开。有信号触发时，发出与VCC电源线相同的电压，也就是out线和电源线VCC连接，输出高电平VCC。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><span style="line-height: 25.2px;"> 涨知识</span>了！NPN与PNP<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">传感</a>器有何区别？PNP与NPN型传感器其实就是利用三极管的饱和和截止，输出两种状态，属于开关型传感器。但输出信号是截然相反的，即高电平和低电平。PNP输出是低电平0，NPN输出的是高电平1。<div><br><div><p style="text-align: center;"><a href="data/attachment/portal/201610/13/083714zzszsrnvdn1wfjh1.png" target="_blank"><img src="data/attachment/portal/201610/13/083714zzszsrnvdn1wfjh1.png"></a></p><p style="text-align: center;"><br></p><p style="text-align: left;"> <b><font color="#f00000">NPN与PNP传感器有何区别？</font><br><br></b></p><div> PNP与NPN型传感器（开关型）分为六类：</div><div><br></div><div> 1、NPN-NO（常开型）</div><div><br></div><div> 2、NPN-NC（常闭型）</div><div><br></div><div> 3、NPN-NC+NO（常开、常闭共有型）</div><div><br></div><div> 4、PNP-NO（常开型）</div><div><br></div><div> 5、PNP-NC（常闭型）</div><div><br></div><div> 6、PNP-NC+NO（常开、常闭共有型）</div><div><br></div><div> PNP与NPN型传感器一般有三条引出线，即电源线VCC、0V线，out信号输出线。</div><div><br></div><div> 1、NPN类</div><div><br></div><div> NPN是指当有信号触发时，信号输出线out和电源线VCC连接，相当于输出高电平的电源线。</div><div><br></div><div> 对于NPN-NO型，在没有信号触发时，输出线是悬空的，就是VCC电源线和out线断开。有信号触发时，发出与VCC电源线相同的电压，也就是out线和电源线VCC连接，输出高电平VCC。<span style="line-height: 1.8em;">对于NPN-NC型，在没有信号触发时，发出与VCC电源线相同的电压，也就是out线和电源线VCC连接，输出高电平VCC。当有信号触发后，输出线是悬空的，就是VCC电源线和out线断开。</span><span style="line-height: 1.8em;">对于NPN-NC+NO型，其实就是多出一个输出线OUT，根据需要取舍。</span></div><div> </div><div> 2、PNP类</div><div><br></div><div> PNP是指当有信号触发时，信号输出线out和0v线连接，相当于输出低电平，ov。</div><div><br></div><div> 对于PNP-NO型，在没有信号触发时，输出线是悬空的，就是0v线和out线断开。有信号触发时，发出与OV相同的电压，也就是out线和0V线连接，输出输出低电平OV。<span style="line-height: 1.8em;">对于PNP-NC型，在没有信号触发时，发出与0V线相同的电压，也就是out线和0V线连接，输出低电平0V。当有信号触发后，输出线是悬空的，就是0V线和out线断开。</span><span style="line-height: 1.8em;">对于PNP-NC+NO型，和NPN-NC+NO型类似，多出一个输出线OUT，及两条信号反相的输出线，根据需要取舍。</span></div><div><span style="line-height: 1.8em;"><br></span></div><div> 我们一般常用的是NPN型，即高电平有效状态。PNP很少使用。</div></div></div><div><br></div><div> 以上就是跟大家整理的关于NPN与PNP传感器有何区别的知识，您还有什么要补充的吗？</div></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div id="click_div"><table cellpadding="0" cellspacing="0" class="atd"> <tr><td> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=click&op=add&clickid=1&idtype=aid&id=4917&hash=559b7b4eb96febf970b94ee2a25dbdc5&handlekey=clickhandle" id="click_aid_4917_1" onclick="showWindow(this.id, this.href);doane(event);"> <img src="static/image/click/jidan.gif" alt="" /><br />鸡蛋</a> </td> <td> <a 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