使用電流傳輸器設計之一輸入 五輸出電壓式高輸入阻抗二階濾波器

High Input Impedance Voltage-mode Universal Biquadratic Filter with One Input and Five Outputs Using Current Conveyors

鄒宏彬(Hung-Pin Chou)

指導教授 ： 洪君維

中原大學/工學院/電子工程研究所/碩士(2007年)

https://doi.org/10.6840/cycu200700225

摘要

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，擁有一個輸入端及五個輸出端。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，以及兩個接地電容。此電路能夠同時實現所有標準的濾波功能---低通、帶通、高通、帶拒、和全通，而不需要改變被動元件。這個電路擁有以下幾個特色---高輸入阻抗、極點頻率與品質係數是正交可調、只使用接地電容和低的主動及被動敏感度（sensitivities）。

關鍵字

萬用二階 ； 主動濾波器 ； 電流傳輸器

並列摘要

A new high input impedance voltage-mode universal biquadratic filter with one input terminal and five output terminals is presented. The proposed circuit uses three differential voltage current conveyors (DVCCs), four resistors, and two grounded capacitors. The proposed circuit can realize all the standard filter functions, simultaneously： lowpass, bandpass, highpass, notch and allpass, without changing the passive elements. The proposed circuit has the features of high input impedance, orthogonal controllable of resonance angular frequency and quality factor, as well as low active and passive sensitivities, using only grounded capacitors.

並列關鍵字

Active filter ； current conveyor ； universal biquad

參考文獻

[1] M. T. Abuelma’atti and H. A. Al-Zaher, New universal filter with one input and five outputs using current-feedback amplifiers, Analog Integrated Circuits and Signal Processing, 16, 239-244, 1998.

[2] M. Banu and Y. Tisvidis, Floating voltage-controlled resistors in CMOS technology, Electronics Letters, 18, 678-679, 1982.

[3] M. Bhusan and R. W. Newcomb, Grounding of capacitors in integrated circuits, Electronic Letters, 3, 148-149, 1967.

[5] C. M. Chang, Multifunction biquadratic filters using current conveyors, IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, 44, 956-958, 1997.

[6] C. M. Chang, C. S. Hwang, and S. H. Tu, Voltage-mode notch, lowpass and bandpass filter using current-feedback amplifiers, Electronics Letters, 30, 2022-2023, 1994.