非理想运放构建的低通滤波电路优化设计  

Optimization of low-pass filter design based on non-ideal operational amplifier

作　　者：王耀宇 郭晓[2] 刘兵[2] 

机构地区：[1]国家电网山西朔州供电分公司,山西朔州036000 [2]西北工业大学电子信息学院,陕西西安710072

出　　处：《电子设计工程》2013年第9期167-170,共4页Electronic Design Engineering

基　　金：西北工业大学研究生创业种子基金资助(Z2012076)

摘　　要：分析了基于理想运算放大器构建的滤波器性能以及参数选原则。针对理想运算放大器所构建的滤波器模型当运算放大器为非理想器件时所制造出的滤波器响应性能并不理想这一问题。研究了非理想运算放大器构建的滤波器器件参数对响应时间的影响,提出了一种选取其最优参数值以构建所需滤波器的方法,实验结果表明了该方法的有效性。The parameter selection problem of the filter based on an ideal operational amplifier was analyzed. Aiming at the problem that the filter response wasn＇t satisfied, when we designed a filter using the model based on an ideal operational amplifier. The response time and device parameters of the filter designed on an non-ideal operational amplifier was studied, and an method which can calculate the optimal parameters of the filter was proposed. The experimental results show the effectiveness of this method.

关 键 词：非理想运算放大器 滤波器 响应时间 滤波器的优化 

分 类 号：TN722.77[电子电信—电路与系统]