Akım Geri Beslemeli İşlemsel Kuvvetlendirici Kullanılarak Topraklanmış Endüktans Simülatör Topolojileri

Endüktans simülatörleri; faz kaydırıcılar, aktif filtre devreleri, osilatörler ve parazitlikleri önleyici devre tasarımlarında kullanılmaktadırlar. Akım geri beslemeli işlemsel kuvvetlendirici (CFOA) elemanı ile birlikte pasif elemanlar kullanılarak topraklanmış üç adet endüktans simülatörü tasarlanmıştır. Bu çalışmanın amacı düşük frekanslarda çalışabilen en az sayıda aktif ve pasif eleman kullanarak yeni endüktans simülatörleri elde etmektir. Önerilen endüktans simülatörlerinden birincisi iki seri direnç ve endüktanstan (R1+R2+L), ikincisi seri direnç ve endüktanstan (-R-L); üçüncüsü ise iki direncinin eşitliği durumunda (R2=R3) kayıpsız endüktanstan (-L)’den oluşmaktadır. Önerilen simülatörlerin başarımı AD844 CFOA LTSpice modeliyle RLC süzgeç benzetimi yapılarak gösterilmiştir. Sonuçların teorik analiz ile uyum içinde olduğu görülmüştür. LTSpice programı ile yapılan simülasyonlar ile teorik sonuçların bağdaştığı görülmüştür.

Anahtar Kelimeler:

Akım geri beslemeli işlemsel kuvvetlendirici, Endüktans simülatörü, Süzgeç

Current Feedback Operational Amplifier Based Grounded Inductance Simulator Topologies

Inductance Simulators can be used to implement phase shifting circuits, active filters, oscillators, cancellation of parasitic elements. In this work, three inductor simulators employing only a single active circuit current feedback operational amplifier, and three passive components have been proposed. The aim of this work, is to show new inductance simulators working the low frequencies using minimum number of active and passive elements. The first topology designed for series lossy inductance consists of two resistors and inductors (R1+R2+L), the second topology consists of (-R-L) and the third topology is lossles negative inductance if the two resistors are equal (R2=R3). To demonstrate the performance of the proposed simulated inductors, passive RLC filter has been used with AD844 CFOA Spice model. The simulations performed with the LTSpice program agree with the theoratical analysis.

Keywords:

Current Feedback Operational Amplifier, Inductor simulator, Filter.,

PDF

___

Abaci, A., ve Yuce, E. (2017). Modified DVCC based quadrature oscillator and lossless grounded inductor simulator using grounded capacitor(s). AEU - International Journal of Electronics and Communications, 76, 86–96. https://doi.org/10.1016/j.aeue.2017.03.023
Abuelma’atti, M. T. (2012). New grounded immittance function simulators using single current feedback operational amplifier. Analog Integrated Circuits and Signal Processing, 71(1), 95–100. https://doi.org/10.1007/s10470-011-9742-2
Başak M. E, Kaçar F. (2018). Lossy/Lossless Grounded Inductance Simulators Using Current Feedback Operational Amplifier (CFOA). Electrica, 18 (1), pp. 95-99, 2018
Ferri, G., ve Guerrini, N. C. (2003). Low voltage, low power CMOS current conveyors. Kluwer Academic Publishers. NEW YORK, BOSTON, DORDRECHT, LONDON, MOSCOW: Kluwer Academic Publishers.
Ibrahim, M. A., Minaei, S., Yuce, E., Herencsar, N., ve Koton, J. (2011). Lossless grounded inductance simulation using only one modified dual output DDCC. In 2011 34th International Conference on Telecommunications and Signal Processing, TSP 2011 - Proceedings (pp. 261–264). https://doi.org/10.1109/TSP.2011.6043730
Ibrahim, M. A., Minaei, S., Yuce, E., Herencsar, N., ve Koton, J. (2012). Lossy/Lossless floating/Grounded inductance simulation using one DDCC. Radioengineering, 21(1), 3–10.
Kaçar, F., ve Kuntman, H. (2011). CFOA-based lossless and lossy inductance simulators. Radioengineering, 20(3), 627–631.
Kaçar, F., Yeşil, A., Minaei, S., ve Kuntman, H. (2014). Positive/negative lossy/lossless grounded inductance simulators employing single VDCC and only two passive elements. AEU - International Journal of Electronics and Communications, 68(1), 73–78. https://doi.org/10.1016/j.aeue.2013.08.020
Kumar, P., ve Senani, R. (2010). New grounded simulated inductance circuit using a single PFTFN. Analog Integrated Circuits and Signal Processing, 62(1), 105–112. https://doi.org/10.1007/s10470-009-9322-x
Nagar, B. C., ve Paul, S. K. (2016). Negative inductance simulator using OTRA, 3(2), 2–4.
Paul, A. N., ve Patranabis, D. (1981). Active Simulation of Grounded Inductors Using a Single Current Conveyor. IEEE Transactions on Circuits and Systems, 28(2), 164–165. https://doi.org/10.1109/TCS.1981.1084947
Pramanik, A. (2015). Design of operational transresistance amplifier based grounded active inductor and implementation of bandpass filter. In 2015 2nd International Conference on Electronics and Communication Systems (ICECS) (pp. 842–844). IEEE. https://doi.org/10.1109/ECS.2015.7125032
Sedra, S. A., ve Smith, C. K. (2015). Microelectronics Circuits (7e ed.). Oxford University Press.
Yesil, A., ve Kacar, F. (2016). VDBA-based lossless and lossy inductance simulators and its filter applications. In 2016 24th Signal Processing and Communication Application Conference (SIU) (pp. 909–912). https://doi.org/10.1109/SIU.2016.7495888
Yeşil, A., Kaçar, F., ve Gürkan, K. (2014). Lossless grounded inductance simulator employing single VDBA and its experimental band-pass filter application. AEU - International Journal of Electronics and Communications, 68(2), 143–150. https://doi.org/10.1016/j.aeue.2013.07.016