使用運算轉導放大器及電容器組成之電流轉移函數實現可調式接地與浮接導納模擬器

Realization of Tunable Grounded and Floating Immittance Simulators using OTA-C Current Transfer Functions

陳敬昕(Ching-Hsin Chen)

指導教授 ： 侯俊禮

中原大學/工學院/電子工程研究所/碩士(2008年)

https://doi.org/10.6840/cycu200800259

摘要

本文提出一個使用電流轉移函數來實現可調式接地導納與浮接導納的模擬器。此電路是由幾個第二代電流傳輸器與運算轉導放大器所組成。選擇適當的輸出點，此電路可以分別實現高通、帶通與低通的接地導納與浮接導納，並且可藉由調整運算放大器的放大偏壓電流，改變導納值。最後以HSPICE模擬電路，並且呈現其結果。

關鍵字

運算轉導放大器 ； 可調式模擬器 ； 浮接導納 ； 接地導納 ； 電流傳輸器

並列摘要

This paper presents the realization of tunable grounded and floating immittance simulators using current transfer functions. The proposed circuits are composed of some second-generation current conveyors (CCIIs) and operational transconductance amplifiers (OTAs). Choosing the appropriate output, the circuits can realize high-pass, band-pass, and low-pass immittances, and the immittances can be tuned by adjusting the amplifier bias current (Iabc) of OTAs. Two examples are shown together with simulation resulted by HSPICE.

並列關鍵字

current conveyor (CCII) ； tunable simulator ； floating immittance ； grounded immittance ； operational transconductance amplifier (OTA)

參考文獻

[1] B. Wilson, “Recent developments in current conveyors snd current mode circuits”, IEE Proc. G, vol. 137, pp. 63-77, 1990.

[2] I. A. Khan, M. T. Ahmed, and N.Minahaj, “Novel technique for immittance simulation-relation of some all-active simulators”, Int. J. Electronics, vol. 72, no.3, pp. 431-441, 1992.

[3] C. L. Hou, R. D. Chen, Y. P. Wu, and P.C. Hu, “Realization of grounded and floating immittance function simulators using current conveyors”, Int. H. Electronics, vol. 74, no. 6, pp. 917-923, 1993.

[4] S. Ozoguz and C. Acar, “On the realization of floating immittance function simulators using current conveyors”, Int. J. Electronics, vol. 85, no. 4, pp. 463-475, 1998.

[6] K. C. Smith and A. Sedra, “The current conveyors － A new circuit building block”, Proceesings of IEEE, pp. 1368-1369, 1968.