使用DDCC、DVCC為主動元件設計電壓式濾波電路

Design of active voltage-mode filters using the DVCC and DDCC

曾敬堯(Ching-Yao Tseng)

指導教授 ： 洪君維

中原大學/工學院/電子工程研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200430

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。此電路使用兩個差動電壓電流傳輸器DVCCs(Differential Voltage Current Conveyors)、一個差動差分電流傳輸器DDCC( Differential Difference Current Conveyor)、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

萬用二階濾波器 ； 電流傳輸器 ； 主動濾波器

並列摘要

One configuration for realizing voltage-mode multi-function filters and another configuration for realizing current-mode multi-function filters each using two current-feedback amplifiers (CFAs) are presented. The proposed voltage-mode circuit exhibits simultaneously lowpass, bandpass and highpass filters. The proposed current-mode circuit also exhibits simultaneously lowpass, bandpass and highpass filters. The proposed circuits offer the following features: no requirements for component matching conditions; low active and passive sensitivities; employing only grounded capacitors and the ability to obtain multi-function filters from the same circuit configuration.

並列關鍵字

active circuit ； biquadratic filter ； current conveyor

參考文獻

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[4] M. T. Abuelma’atti, and S. M. Al-shahrani, “New universal filter using two current-feedback amplifiers,” International Journal of Electronics, Vol. 80, pp. 753-756, 1996.

“Current-mode and voltage-mode universal biquads using a single