利用電流傳輸器設計三輸入端可串接電壓模式萬用二階濾波器

Cascadable Voltage-Mode Three Inputs Universal Biquad Using DVCCs

林志豪(Chih-Hao Lin)

指導教授 ： 洪君維

中原大學/電機資訊學院/電子工程研究所/碩士(2016年)

https://doi.org/10.6840/cycu201600424

摘要

在本論文中提出一個三輸入一輸出且具有高輸入阻抗和低輸出阻抗的電壓模式萬用二階濾波器。此電路使用三個正型差動電壓電流傳輸器(DVCCs)、兩個接地電容和兩個電阻，且具備以下特點：呈現全部標準濾波器之功能，亦即高通、帶通、低通、帶拒和全通之濾波輸出訊號，不需要元件匹配條件，使用接地電容，高輸入阻抗和低輸出阻抗，及低靈敏度特性。本論文使用HSPICE的模擬結果來驗證理論分析。

關鍵字

主動濾波器 ； 電流傳輸器 ； 二階

並列摘要

This paper presents a new three-input one-output voltage-mode universal biquadratic filter with high input and low output impedances. The circuit uses three plus-type differential voltage current conveyors (DVCCs), two grounded capacitors and two resistors and offers the following features: realization of all the standard filter functions, that is, highpass, bandpass, lowpass, notch, and allpass filters, no requirements for component matching conditions, the use of only grounded capacitors, high input and low output impedances and low active and passive sensitivities. HSPICE simulation results confirm the theoretical analysis.

並列關鍵字

active filter ； current conveyor ； biquad

參考文獻

[2] A. Fabre, F. Dayoub, L. Duruisseau, M. Kamoun, “High input impedance insensitive second-order filters implemented from current conveyors,” IEEE Transactions on Circuits and Systems-I: Fundamental Theory and Applications, vol. 41, pp. 918-921, 1994.

[3] S. Maheshwari, J. Mohan, D. S. Chauhan, “Voltage-mode cascadable all-pass sections with two grounded passive components and one active element,” IET Circuits, Devices & Systems, vol. 4, pp. 113-122, 2010.

[4] S. Ozoguz, E. O. Gunes, “Universal filter with three inputs using CCII+s,” Electronics Letters, vol. 32, pp. 2134-2135, 1996.

[5] C. M. Chang, M. S. Lee, “Comment: Universal voltage-mode filter with three inputs and one output using three current conveyors and one voltage follower,” Electronics Letters, vol. 31, p. 353, 1995.

[6] J. W. Horng, C. C. Tsai, M. H. Lee, “Novel universal voltage-mode biquad filter with three inputs and one output using only two current conveyors,” International Journal of Electronics, vol. 80, pp. 543-546, 1996.