基于电流传送器的SAB电路  

Current-conveyor-based biquadratic filter circuits

作　　者：袁助国[1] 杨志民[1] 

机构地区：[1]西北师范大学物理系

出　　处：《西北师范大学学报（自然科学版）》1996年第1期38-44,共7页Journal of Northwest Normal University(Natural Science)

基　　金：甘肃省教委科研资助

摘　　要：给出一种将单放大器（或运放）双二次（ＳＡＢ）电路转换成基于电流传送器的双二次滤波电路的方法，并用电流传送器构成的电压放大器实现了这种转换．通过分析和仿真证明：转换成的基于ＣＣⅡ的双二次电压模式电路，不仅与原型电路有完全相同的滤波功能和元件变化灵敏度，而且具有更优越的高频性能．A general method transfering single amplifier biquedratic (SAB) circuits to CC Ⅱ- based filter circuits is presented. Substituting amplifier in SAB circuits with voltage-mode amplifier constructed by current conveyor,the op-amp-based SAB circuits are transfered to CC Ⅱ- based biquadratic filter circuits.The theoretic analyses and experimental results show that the CC Ⅱ- based SAB circuits posses the same filter functions and sensitivities to component variation and can operate at higher frequences as compared to their original op-amp-based SAB circuits.

关 键 词：电路分析 有源滤波器 电流传送器 SAB电路 

分 类 号：TN713.8[电子电信—电路与系统]