利用DVCCs設計三輸入一輸出高輸入阻抗電壓模式萬用二階濾波器

High Input Impedance Voltage-Mode Universal Biquadratic Filter with Three Inputs and One Output Using Three DVCCs

許志豪(Chih-Hao Hsu)

指導教授 ： 洪君維

中原大學/工學院/電子工程研究所/碩士(2013年)

https://doi.org/10.6840/CYCU.2013.00084

摘要

摘要

在本論文中，提出一個新的高輸入阻抗電壓式萬用二階濾波器，擁有三個輸入端及一個輸出端。此電路使用三個差動電壓電流傳輸器DVCCs(Differential Voltage Current Conveyors)、四個電阻器、以及兩個接地電容器。所提出之電路具有以下之特點：實現全部標準濾波器之方程式，可合成具有高通、帶通、低通、帶拒以及全通之濾波輸出訊號，所使用的電容器均為接地電容器，且具有高輸入阻抗及低的主動被動敏感度(sensitivities)。

關鍵字

主動濾波器 ； 電流傳輸器 ； 萬用二階濾波器

並列摘要

Abstract

In this paper,current conveyors (CCs) based high input impedance voltage-mode universal biquadratic filter with three input terminals and one output terminal is presented. The proposed circuit is composed of three DVCCs, two grounded capacitors and four grounded resistors. The proposed circuit can realize all the standard filter functions, namely, lowpass, bandpass, highpass, notch and allpass filters by the selections of different input voltage terminals. The proposed circuit offer the features of high input impedance, using only grounded capacitors and low active and passive sensitivities.

並列關鍵字

current conveyor ； active circuit. ； biquadratic filter

參考文獻

[27]曾敬堯, “使用DDCC、DVCC為主動元件設計電壓式濾波電路”, 碩士論文, 中原大學電子工程學系, 2012.

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