Universal current-mode filter with multiple inputs and one output using MOCCII and MO-CCCA

被引：13
|
作者：
Wang Chunhua [1 ]
Liu Haiguang [1 ]
Zhao Yan [1 ]
机构：
[1] Hunan Univ, Sch Comp & Commun, Changsha 410082, Hunan, Peoples R China
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2009年 / 63卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Filter; Current-mode circuit; Current conveyor; Current amplifier; ACTIVE CURRENT FILTER;
D O I：
10.1016/j.aeue.2008.03.004
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, by introducing a current-controlled current amplifier with multi-outputs (MO-CCCA), two new multi-input and single-output (MISO) universal filtering circuits are proposed. Each circuit just contains two second-generation current conveyors with multiple outputs (MOCCIIs), one MO-CCCA and four grounded RC elements. They can realize low-pass, band-pass, high-pass, band-stop and all-pass filtering outputs. The characteristic parameters natural frequency (omega(0)) and quality factor (Q) can be tuned independently by bias current of MO-CCCA. Compared to other similar circuits, the circuits in this paper have simpler structures and independent tuning characteristics of omega(0) and Q. Moreover, a filter with a high Q can be obtained by adjusting the ratio of MO-CCCA's bias currents. (C) 2008 Elsevier GmbH. All rights reserved.
引用
收藏
页码：448 / 453
页数：6
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