以第二代電流傳輸器設計萬用二階濾波電路

Multifunction biquadratic filters using current conveyors

安德浩(Te-Hao An)

指導教授 ： 張俊明

中原大學/電機資訊學院/電機工程研究所/碩士(2017年)

https://doi.org/10.6840/cycu201700752

摘要

本論文與 Singh學者 和 Senani學者[4]及 Soliman學者 [6]發表的論文皆為電壓式萬用(具有低通、高通、帶通、帶拒、全通)濾波電路，其中， Singh學者 和 Senani學者 使用了三個電流傳輸器，三個接地電容，並使用五個電阻；而 Soliman學者 使用了五個電流傳輸器、二個接地電容及六至七個電阻完成設計。
而本論文使用了四個電流傳輸器，二個接地電容，以及五個電阻來設計電壓式萬用濾波電路。此電路因為所使用的元件較少，在IC下線時可以有效的減少面積；又因為使用接地電容，可以有效的吸收寄生效應；可以藉由固定的電路結構，不需元件匹配即可產生五種不同的濾波訊號；並可正交調整其品質因素與諧振角頻率；另外，低敏感度也是本電路的一個重要優點。
本文論文電路均以H-SPICE進行製程的模擬與論點驗證，並使用TSMC 3.3-V 0.35-μm CMOS製程參數進行電路特性模擬。

關鍵字

濾波器 ； 電流傳輸器 ； H-SPICE

並列摘要

Singh and Senani proposed a universal active filter configuration which requires component matching conditions, and then realizes allpass,notch, highpass, bandpass, and lowpass signals from the same configuration employing three current conveyors, three grounded capacitors and five resistors. Soliman proposed a Kerwin–Huelsman–Newcomb filter using five current conveyors, two grounded capacitors, and six/seven resistors
In this work, four current conveyors, two grounded capacitors, and five resistors were utilized to design Multifunction biquadratic filters. Each proposed circuit offers the following advantageous features: realization of different biquadratic filter signals from the same configuration, no requirements for component matching conditions, employment of only two grounded capacitors which are ideal for integration, orthogonal control of ω_o and Q, and low sensitivities.
In this dissertation, the circuit is simulated and verified by H-SPICE process, and use parameters from TSMC 3.3-V 0.35-μm CMOS process to simulate the circuit characteristics.

並列關鍵字

filters ； current conveyors ； H-SPICE

參考文獻

1.B. Wilson, “Recent developments in current conveyors and current-mode circuits,” Proc. Inst. Elect. Eng. G, vol. 137, pp. 63–77, Apr. 1990.

2.C. Toumazou and F. J. Lidgey, “Universal active filter using current conveyors,” Electron. Lett., vol. 22, no. 12, pp. 662–664, June 1986.

3. H. Tek and F. Anday, “Voltage transfer function synthesis using current conveyors,” Electron. Lett., vol. 25, no. 23, pp. 1552–1553, Nov. 1989.

4. V. K. Singh and R. Senani, “New multifunction active filter configuration employing cu]rrent conveyors,” Electron. Lett., vol. 26, no. 21, pp. 1814–1816, Oct. 1990.

5. M. Higashimura, “Realization of voltage-mode biquads using CCII’s,” Electron. Lett., vol. 27, no. 15, pp. 1345–1346, July 1991.