Research Article
Year 2018,
Volume: 33 Issue: 1, 83 - 86, 15.03.2018
Abstract
In analog electronic applications, active filters can be designed with operational amplifier (OPAMP) and operational transconductance amplifier (OTA), but recently the current mode circuits are on the way with current applications. Current conveyor structures are preferred in analog designs because of their better bandwidth and linearity than voltage-mode operational amplifiers [1-3]. Using a voltage controlled second generation current conveyor (VCCII), a high gain band pass filter can be implemented. The series resistance at the X terminal of VCCII can be controlled by the bias voltage. In this study, a voltage controlled band pass filter in voltage mode is proposed using the variable resistance characteristic of terminal X of VCCII. The band pass filter is designed using a minimum number of passive elements (only two VCCIIs and two capacitors). The voltage gain of the filter is about 57.6 dB. The center frequency, which can be adjusted according to the control voltage of the filter, is about 15.7 kHz.
Keywords
References
- 1. Sedra, A.S., Smith, K.C., 1970. A Second Generation Current Conveyor and its Applications, IEEE Trans. Circuit Theory, CT- 17, 132-134.
- 2. Fabre, A., 1985. Translinear Current Conveyors Implementation, Int. Journal Electron, 59, 61-623.
- 3. Fabre, A., Saaid, O., Wiest, F., Boucheron C., 1995. Current Controlled Bandpass Filter Based on Translinear Conveyors, Electronics Letters, 31(20), 1727-1728.
- 4. Fabre, A., Saaid, O., Wiest, F., Boucheron, C., 1996. High Frequency Applications Based on a New Current Controlled Conveyors, IEEE Trans. Circuits and Systems, 43(2), 82-91.
- 5. Özoğuz, S., Güneş, E.O., 1996. Universal Filter with Three Inputs using CCII+, Electronics Letters, 32(23), 2134-2135.
- 6. Fabre, A., Saaid, O., Wiest, F., Boucheron, C., 1997. Low Power Current-mode Second-order Bandpass IF Filter, IEEE Trans. Circuits and Systems, 44(6), 436-445.
- 7. Aksoy, M., Çiçekoğlu, O., Kuntman, H., 2001. High Output Impedance Current Mode Third Order Equal Passive Component Butterworth Filter Proceedings of the International Symposium on Signals, Circuits & Systems, SCS ‘2001, 413-416.
- 8. Choubey, C.K., Tiwari, G., Paul, S.K., 2016. CCII Based Multifunction Inverse Filter, 2016 IEEE International Conference on Advances in Electronics, Communication and Computer Technology (ICAECCT) Rajarshi Shahu College of Engineering, Pune India.
- 9. Lee, C., 2013. Fully Cascadable High-Order Current-Mode CCII-Based Universal Filter, Proceedings of 2013 International Conference on Fuzzy Theory and Its Application National Taiwan University of Science and Technology, Taipei, Taiwan, Dec.
Year 2018,
Volume: 33 Issue: 1, 83 - 86, 15.03.2018
Abstract
Analog elektronik uygulamalarında aktif süzgeçler işlemsel kuvvetlendirici (OPAMP) ve işlemsel geçiş
iletkenliği kuvvetlendiricisi (OTA) kullanılarak tasarlanabilirler fakat yakın zamanlarda akım modlu
devreler güncel uygulamaları ile gündemdedir. Akım taşıyıcı yapılarının bant genişliklerinin ve
lineerliklerinin gerilim modlu işlemsel kuvvetlendiricilerden daha iyi olmasından dolayı analog
tasarımlarda tercih edilmektedir [1-3]. Gerilim kontrollü ikinci nesil akım taşıyıcı (VCCII) kullanarak
yüksek kazançlı bant geçiren süzgeç uygulanması gerçekleştirilebilir. VCCII’nin X terminalindeki seri
direnç bias gerilimi ile kontrol edilebilir. Bu çalışmada VCCII’nin X terminalinin değişken direnç özelliği
kullanarak gerilim modunda gerilim kontrollü bant geçiren süzgeç önerilmiştir. En az sayıda pasif eleman
kullanarak (sadece iki VCCII ve iki kondansatör kullanılarak) bant geçiren süzgeç tasarlanmıştır.
Süzgeçin gerilim kazancı yaklaşık 57,6 dB’dir. Süzgeçin kontrol gerilimine göre ayarlanabilen merkezi
frekansı yaklaşık 15,7 kHz’dir.
Keywords
References
- 1. Sedra, A.S., Smith, K.C., 1970. A Second Generation Current Conveyor and its Applications, IEEE Trans. Circuit Theory, CT- 17, 132-134.
- 2. Fabre, A., 1985. Translinear Current Conveyors Implementation, Int. Journal Electron, 59, 61-623.
- 3. Fabre, A., Saaid, O., Wiest, F., Boucheron C., 1995. Current Controlled Bandpass Filter Based on Translinear Conveyors, Electronics Letters, 31(20), 1727-1728.
- 4. Fabre, A., Saaid, O., Wiest, F., Boucheron, C., 1996. High Frequency Applications Based on a New Current Controlled Conveyors, IEEE Trans. Circuits and Systems, 43(2), 82-91.
- 5. Özoğuz, S., Güneş, E.O., 1996. Universal Filter with Three Inputs using CCII+, Electronics Letters, 32(23), 2134-2135.
- 6. Fabre, A., Saaid, O., Wiest, F., Boucheron, C., 1997. Low Power Current-mode Second-order Bandpass IF Filter, IEEE Trans. Circuits and Systems, 44(6), 436-445.
- 7. Aksoy, M., Çiçekoğlu, O., Kuntman, H., 2001. High Output Impedance Current Mode Third Order Equal Passive Component Butterworth Filter Proceedings of the International Symposium on Signals, Circuits & Systems, SCS ‘2001, 413-416.
- 8. Choubey, C.K., Tiwari, G., Paul, S.K., 2016. CCII Based Multifunction Inverse Filter, 2016 IEEE International Conference on Advances in Electronics, Communication and Computer Technology (ICAECCT) Rajarshi Shahu College of Engineering, Pune India.
- 9. Lee, C., 2013. Fully Cascadable High-Order Current-Mode CCII-Based Universal Filter, Proceedings of 2013 International Conference on Fuzzy Theory and Its Application National Taiwan University of Science and Technology, Taipei, Taiwan, Dec.
There are 9 citations in total.
Details
| Primary Language | Turkish |
|---|---|
| Journal Section | Articles |
| Authors | |
| Publication Date | March 15, 2018 |
| Published in Issue | Year 2018 Volume: 33 Issue: 1 |