基于VDTAs接地回转器的系统综合法  

Systematic synthesis of VDTA-based grounded gyrators

作　　者：李永安[1,2] 曹蕤[3] LI Yong-an CAO Rui(School of Information and Engineering, Shaanxi Institute of International Trade ＆ Commerce, Xi＇an 712046, China School of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, China XUan High Voltage Apparatus Research Institute Co., Ltd. Xi＇an 710077, China)

机构地区：[1]陕西国际商贸学院信息与工程学院,陕西西安712046 [2]咸阳师范学院物理与电子工程学院,陕西咸阳712000 [3]西安高压电器研究院有限责任公司,陕西西安712046

出　　处：《电子设计工程》2017年第3期72-75,共4页Electronic Design Engineering

基　　金：陕西省自然科学研究基金资助项目(2012JM8017)

摘　　要：基于实现电压差分跨导放大器(VDTA)的接地回转器目的,采用节点导纳矩阵扩展法(括号符号法),系统综合了2个基于VDTA接地回转器。所综合的电路仅仅使用一个VDTA,通过调节VDTA的偏置电流,电路的参数能电控调节。为证实电路工作的可靠性,基于该回转器之一,利用元件替换法,设计了电流模式三阶巴特沃斯高通滤波器,其极点频率为100 k Hz,通带增益为0.5,结合计算机仿真结果,得出所设计的电路正确有效。Based on the objective of realizing gyrators using voltage differencing tranconductance amplifiers （VDTAs）, two grounded gyrators using VDTAs are systematically synthesized by means of the nodal admittance matrix expansion method （the bracket notation method）. The synthesized circuits use only one VDTA and their parameters can be electronically tuned through tuning bias currents of the VDTA. To confirm the reliability of the circuits, on basis of one of gyrators, Butterworth third-order high-pass filter is designed by component Substitution method. It＇s the pole frequency is 100 kHz and the pass-band gain is 0.5. Combining computer simulation results can find that the proposed circuits are valid and effective.

关 键 词：接地回转器 电压差分跨导放大器 奇异元件 系统综合法 

分 类 号：TN715.3[电子电信—电路与系统]