Multisim-filter.rar_multisim_multisim filter_软件设计/软件工程下载-pudn.com

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/62519ddd74bc5c01059dec42/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62519ddd74bc5c01059dec42/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">收稿日期: 2008- 12- 28</div><div class="t m0 x2 h3 y2 ff3 fs1 fc0 sc0 ls0 ws0">基于 M u ltismi 的二阶有源滤波器的研究</div><div class="t m0 x3 h4 y3 ff4 fs2 fc0 sc0 ls0 ws0">李端</div><div class="t m0 x4 h5 y4 ff2 fs3 fc0 sc0 ls0 ws0">1</div><div class="t m0 x5 h4 y3 ff4 fs2 fc0 sc0 ls0 ws0">艾永乐</div><div class="t m0 x6 h5 y4 ff2 fs3 fc0 sc0 ls0 ws0">1</div><div class="t m0 x7 h2 y5 ff2 fs0 fc0 sc0 ls0 ws0">( 1. 河南理工大学电气工程学院, 河南 焦作 454001)</div><div class="t m0 x1 h6 y6 ff3 fs4 fc0 sc0 ls0 ws0">摘 要: 运算放大器、电阻、电容构成的有源滤波器有显著的优点, 在现代电子技术中得到了 广泛应用。本 文在对 V CV S滤 波</div><div class="t m0 x1 h6 y7 ff4 fs4 fc0 sc0 ls0 ws0">电路的传递函数分析的基础上 , 根据滤波器性能参数及设计要求确定了二阶有源低 通滤波电 路中电容和 电阻值。在 M u lti</div><div class="t m0 x8 h6 y8 ff2 fs4 fc0 sc0 ls0 ws0">sim 环境下建立了滤波电路模型, 并对其进行了时域和频域分析, 得出了具有一定参考 价值的结论。</div><div class="t m0 x1 h6 y9 ff3 fs4 fc0 sc0 ls0 ws0">关键词: M ultisim7; 有源低通滤波器; 电子技术; 实践教学</div><div class="t m0 x1 h6 ya ff3 fs4 fc0 sc0 ls0 ws0">中图分类号: G 434        文献标识码: A        文章编号: 1672- 464X ( 2009) 01- 0012- 05</div><div class="t m0 x9 h7 yb ff7 fs5 fc0 sc0 ls0 ws0">Application ofM ultisim 7 in E lectronic C ircuit Teach ing</div><div class="t m0 xa h8 yc ff2 fs0 fc0 sc0 ls0 ws0">L I Du a n</div><div class="t m0 xb h9 yd ff2 fs6 fc0 sc0 ls0 ws0">1</div><div class="t m0 xc h8 yc ff2 fs0 fc0 sc0 ls0 ws0">, A I Yo ng - le</div><div class="t m0 xd h8 ye ff2 fs0 fc0 sc0 ls0 ws0">(H enan Polytechnic U niversity E lectrica lEngineering and institute1, Jiaozuo H enan 454000, Ch ina)</div><div class="t m0 xe ha yf ff7 fs4 fc0 sc0 ls0 ws0">Abstract: The activ e filter w ith resistance, capac itance and O perational Am plifier ( OA ) is w idely applied to the m ode rn electronic</div><div class="t m0 x8 ha y10 ff2 fs4 fc0 sc0 ls0 ws0">technology w ith prom inent effects. A 2nd active loss- pass filter circu it is designed on the basis of analysis of active filter s' transfer</div><div class="t m0 x8 ha y11 ff2 fs4 fc0 sc0 ls0 ws0">function. T he capacitance va lue and resistance va lue are obta ined accord ing to the performance param eter of the filter and its cut off</div><div class="t m0 x8 ha y12 ff2 fs4 fc0 sc0 ls0 ws0">frequency. T his paper presents the low - pass filter circu itm odel in M ultisim.</div><div class="t m0 xf ha y13 ff7 fs4 fc0 sc0 ls0 ws0">K eywords: M ultisim7; Operational Amp lifie r ( OA ); e lectron ic techno logy; teaching practice</div><div class="t m0 x10 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">河南省教育科学 "十一五 "规划 2007年课题, "电子技术基础双语教学改革研究与实践 ", 课题编号:</div><div class="t m0 xe h8 y15 ff2 fs0 fc0 sc0 ls0 ws0">2007- JKGHAG - 083</div><div class="t m0 x10 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">滤波器是对信号的频率具有选择性的电路, 它的功能是使特定频率范围内的信号通过, 而阻止其它频</div><div class="t m0 x1 h2 y17 ff1 fs0 fc0 sc0 ls0 ws0">率信号通过。有源滤波器具有设计标准化、模块化、易于制造等优点, 因此被 广泛用于信息处理、数据传</div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">送和抑制干扰等电路中。</div><div class="t m0 x10 h2 y19 ff2 fs0 fc0 sc0 ls0 ws0">M u ltisim 是专门用于电子线路仿真的 "虚拟电子工作台 "软件, 它界面形象直观、操作方便, 既可以进</div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">行电路设计, 也可以对所设计的电路进行各种功能模拟仿真实验。M u ltisim 将电路图输入、S P I C E 仿真</div><div class="t m0 x1 h2 y1b ff1 fs0 fc0 sc0 ls0 ws0">器、元器件库、仪表库集成并融合在一起, 相当于一个设备先进、功能完备的大型电子实验室。本文详细介</div><div class="t m0 x1 h2 y1c ff1 fs0 fc0 sc0 ls0 ws0">绍了二阶有源滤波器的设计方法, 并用 M u ltisim 软件对其进行了瞬态分析和频率特性分析。</div><div class="t m0 x1 hb y1d ff3 fs5 fc0 sc0 ls0 ws0">一、二阶有源低通滤波器原理分析</div><div class="t m0 x10 h2 y1e ff1 fs0 fc0 sc0 ls0 ws0">压控电压源型有源滤波器中, 运算放大器和电阻构成压控电压源, 其运放为同相输入, 具有输入电阻</div><div class="t m0 x1 h2 y1f ff1 fs0 fc0 sc0 ls0 ws0">高、输出电阻低的优点, 能提供一定的信号增益和缓冲作用。并可用简单的级联得到高阶滤波器, 且调谐</div><div class="t m0 x1 h2 y20 ff1 fs0 fc0 sc0 ls0 ws0">也很方便。该电路在数控装置和信号处理电路中有广泛应用。</div><div class="t m0 x10 h2 y21 ff1 fs0 fc0 sc0 ls0 ws0">图 1- 1是二阶压控电压源有源低通滤波电路, 它的一级电容的一端接到集成运放的输出端, 形成单</div><div class="t m0 x1 h2 y22 ff1 fs0 fc0 sc0 ls0 ws0">端正反馈形式, 其目的是为了使输出电压在高频段迅速下降, 而在接近截至频率 </div><div class="t m0 x11 h9 y23 ff2 fs6 fc0 sc0 ls0 ws0">0</div><div class="t m0 x12 h2 y22 ff1 fs0 fc0 sc0 ls0 ws0">的范围输出电压又不</div><div class="t m0 x1 h2 y24 ff1 fs0 fc0 sc0 ls0 ws0">至下降太多, 有利于改善滤波特性。</div><div class="t m0 x10 h2 y25 ff1 fs0 fc0 sc0 ls0 ws0">根据图 1- 1电路可以列出方程如下:</div><div class="t m0 x1 h6 y26 ff1 fs4 fc0 sc0 ls0 ws0">第 17卷 第 2期               北京电子科技学院学报</div><div class="t m0 xf ha y27 ff2 fs4 fc0 sc0 ls0 ws0">V o1. 17 N o. 2         Journa l of Be ijing E lrctron in Science and T echno logy Institute</div><div class="t m0 x13 h6 y26 ff2 fs4 fc0 sc0 ls0 ws0">2009年 6月</div><div class="t m0 x14 ha y27 ff2 fs4 fc0 sc0 ls0 ws0">Jun. 2009</div></div><div class="pi" data-data='{"ctm":[1.745787,0.000000,0.000000,1.745787,0.000000,0.000000]}'></div></div> </body> </html>