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src="/template/NEST300017/images/erji_left_3.gif" alt="新闻中心" width="719" height="24" /></div> <div id="qmv7ab8uj" class="JSright_title"> <div id="qmv7ab8uj" class="JSright_title_L"> <span>新闻详细</span> </div> <div id="qmv7ab8uj" class="JSright_title_R">ȸըشȫ 您现在的位置?a href="/">首页</a> > <a href="/news/">新闻信息</a> > 详细内容 </div> </div> <div id="qmv7ab8uj" class="JScpzs_cont"> <!--pages内容--> <div id="qmv7ab8uj" class="detail"> <div id="qmv7ab8uj" class="content"> <h3>【新】直流稳压电源的自载稳定?直流变换器是什?/h3> <h6>来源?a href='http://szhxtt.com/news/174.html'>http://szhxtt.com/news/174.html</a></h6> <h6>发布时间?016-11-09</h6> <div class="public" id="zoom"> <p style="line-height:24px;"><p style="text-indent:2em;"> 在TFG6000系列合成<a href="http://szhxtt.com/xhfsq/" target="_blank">信号发生?/a>、?b><a href="http://szhxtt.com/" target="_blank" style="font-weight:bold">直流稳定电源</a></b>使用等文章中,让大家了解了一些不为人知的知识,但"直流稳压电源的自载稳定度 直流变换器是什?对于很多人来说是还是比较陌生的,今天我们就来了解一? </p><p style="text-align:center;"><img alt="【新】直流稳压电源的自载稳定?直流变换器是什? src="http://cmsimgshow.zhuchao.cc/22556/20150813035650.jpg?path=szhxtt.com/uploads/cp/20150813035650.jpg" style="width:480px;height:480px;"/></p><p style="text-indent:2em;">这是指在所有其它影响量保持不变时,由于负载的变化使输出电流在额定值I和零之间变化时所引起的输出电压的相对变化量.负载稳定度的符号为sl由定义可知第二节稳压原理是用来说明线性调整型晶体管直流稳压电源工作原理的一种基本稳压电路。El是整流滤波电路的电动势RI是整流滤波电路的等效内阻,U是未经稳定的输入电压,U2是输出的稳定电压,I是输出电流,RL是外负载,磁是过电流保护电路的检测电阻,BG为调整管,BG2为放大管,D为基准稳压管,R和R2为取样电阻.这种将调整级与负载串联的稳压电源称为串联型稳压电源。其调整作用是连续的,所以又称为线性调整型稳压电源.调整作用是利用负反馈的原理来获得的:电阻R和R2,组成的分压器用来把输出电压U的变动量的一部分取出来,加至放大管BG的基级上,所以R和R2支路称为取样电路.从R取得的电压U叫做取样电压.为了保证取样电压只反映U的变动,而不受BG基极电流1的影响,在设计中要使通过R和R2的电流I8远大?HZ。由硅稳压管Df和限流电阻R组成的电路用来提供基准电压,它等于稳压管D的稳定电压Ur,加到放大管BG的发射极。BG起着将取样电压Ub和基准电压Uz进行比较并对其差值进行放大的作用,所以称为误差放大器U和Uz的差值UAB称为误差电压,UAB=UR是误差放大器的负载电阻。从BG输出的控制电流加到调整管BG的基极用来控制BG的基极电流直流,直流稳压电源的自载稳定度达到维持输出电压近似不变的调整作用?/p><p style="text-indent:2em;"> <span style="color:#ff0000;">这篇文章您或许更喜欢?a href="http://szhxtt.com/news/26.html">【图文】数字万用表简?直流稳定电源用?/a></span> </p><p style="text-indent:2em;"> 直流变换器是将一种电压的直流电变换为另一种或几种电压的直流电的设备?/p><p style="text-indent:2em;"> 直流变换器有并联和非并联两种?/p><p style="text-indent:2em;"> 1、并联直流变换器采用先进的高频脉宽调制边缘谐振技术,使效率得到了极大提高。具有稳压精度高、抗干扰能力强、输出杂音低、动态响应快、工作温度范围宽等特点?/p><p style="text-indent:2em;"> 2、非并联直流变换器采用进口DC-DC模块组成,具有稳压精度高、输出噪声低、抗干扰能力强等优点,且体积小、重量轻。 </p><p style="text-indent:2em;"> 一般的直流变换器都是单向的,在某些场合也会用双向直流变换器来进行工作?/p><p style="text-indent:2em;"> “直流稳压电源的自载稳定?直流变换器是什么”所述的内容,是我们的小编精心为大家准备的,还记得上?a href="http://szhxtt.com/supply/25.html">TFG6000系列合成信号发生?/a>中说了什么吗?这些或许都有些不全面的地方,我们会在以后的文章中为大家一一说明?</p> <p> <span>本文关键词:</span><span>直流 稳压电源 电压 稳压 输出 BG</span> </p></p> </div> <p><div>上一?<a href="175.html">【多图】论频谱分析仪的重要?直流稳定电源的相关介?/a></div> <div>下一?<a href="173.html">【汇总】大量供应畅销的直流电力电源模?直流稳定电源自载稳定度是什?/a></div> </p> </div> <div id="qmv7ab8uj" class="left"> <div id="qmv7ab8uj" class="function">【相关标签】:<a href='/key.aspx?k=%e7%94%b5%e5%8e%8b'>电压</a>,<a href='/key.aspx?k=%e7%a8%b3%e5%8e%8b'>稳压</a>,<a href='/key.aspx?k=%e8%be%93%e5%87%ba'>输出</a>,<a 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