摘要
为了得到一个最简单、最经济的电流模式高Q带通滤波器,根据传统的文氏桥振荡器和伴随网络理论,设计了一个电流模式/跨导模式的CCCⅡ带通滤波器。通过调整CCCⅡ的偏置电流,电路的极点频率和品质因数能够被独立地电调谐,当满足IB3=2IB4,电路还能产生正弦振荡。由于电路使用4个CCCⅡ和2个接地电容,因此电路适宜集成。计算机仿真结果表明设计方法正确。
On purpose to obtain the simplest and most economical current-mode band-pass filter with high Q,a current-mode and trans-conductance-mode band-pass filter using CCCⅡs is designed by means of the traditional Wien-bridge oscillator and adjoint network the-orem.The pole frequency and quality factor of the circuit can be independently and electronically varied by tuning bias currents of the CCCⅡs.If IB3=2IB4,the circuit can produce sinusoidal oscillations.Since this circuit uses four active elements and grounded capaci-tors,it is easy to be integrated.The computer simulation results have been included to verify the correctness of the design.
作者
李永安
曹剑馨
侯婧嫱
LI Yongan;CAO Jianxin;HOU Jingqiang(School of Information Engineering,Shaanxi Institute of International Trade&Commerce,Xi’an Shaanxi 712046,China;School of Physics and Electronic Engineering,Xianyang Normal University,Xianyang Shaanxi 712000,China)
出处
《电子器件》
CAS
2024年第1期69-73,共5页
Chinese Journal of Electron Devices
基金
陕西省自然科学基础研究计划——面上项目(2017JM6087)。
关键词
带通滤波器
电流模式电路
跨导模式电路
第二代电流控制传输器
文氏桥振荡器
伴随网络理论
band-pass filter
current-mode circuit
transconductance-mode circuit
second generation current-controlled conveyor
Wien-bridge oscillator
adjoint network theorem
