| 用AOA广义阻抗变换器设计高阶电流模式滤波器 |
| |
| 引用本文： | 李永安. 用AOA广义阻抗变换器设计高阶电流模式滤波器[J]. 电子器件, 2007, 30(3): 849-851 |
| |
| 作者姓名： | 李永安 |
| |
| 作者单位： | 咸阳师范学院物理学系,陕西,咸阳,712000 |
| |
| 基金项目： | 咸阳师范学院校科研和教改项目 |
| |
| 摘 要： | 为了获得高精度、高稳定性和低灵敏度的高阶电流模式滤波器,根据伴随网络的概念,以传统的基于电压反馈运算放大器(VFA)的广义阻抗变换器(GIC)为原型,先设计出基于伴随运算放大器(AOA)的电流模式接地GIC,并讨论了由GIC所组成的频变负阻、电容-电阻变换.再利用L.T.Bruton变换,将经典梯形LC五阶Butterworth低通滤波器转换为梯形五阶有源电流模式低通滤波器.计算机仿真与理论分析一致.
|
| 关 键 词： | 高阶滤波器 电流模式 伴随运算放大器 广义阻抗变换器 L.T.Bruton变换 |
| 文章编号： | 1005-9490（2007）03-0849-03 |
| 修稿时间： | 2006-06-12 |
Realization of Higher-Order Current-Mode Filter with Generalized Impedance Converter Based on AOA'S |
| |
| LI Yong-an. Realization of Higher-Order Current-Mode Filter with Generalized Impedance Converter Based on AOA'S[J]. Journal of Electron Devices, 2007, 30(3): 849-851 |
| |
| Authors: | LI Yong-an |
| |
| Abstract: | To obtain higher-order current-modes filter with high accuracy,high stability,and low sensitivity,a current-mode earthed generalized impedance converter(GIC) based on voltage-feedback amplifier(VFA'S) was turned into a GIC based on adjoint Op-Amp's(AOA'S) by means of the concept of adjoint network.And a frequency dependent negative resistor and a capacitor-resistor converter were discussed.By L.T.Bruton transformation,we transformed a five-order Butterworth low-pass filter of LC ladders to a five-order active low-pass filter of ladders.Computer simulating results are consistent with theoretical analyses. |
| |
| Keywords: | higher-order filter circuit mode AOA GIC L. T. Bruton transformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
