Elektronik ayarlanabilir AB sınıfı EDDCC+ tasarımı

Abstract

Bu makalede, translineer devre prensibinin kullanıldığı yeni bir BJT tabanlı AB sınıfı elektronik olarak ayarlanabilen pozitif tip diferansiyel fark akım taşıyıcı (EDDCC+) önerilmektedir. Önerilen EDDCC+'nın mevcut akım kazancı elektronik olarak ayarlanabilmektedir. Elektronik olarak ayarlama işlemi translineer çevrimde bulunan akım kaynakları ile sağlanmaktadır. EDDCC+'nın işlevselliğini göstermek için daha önce yayınlanmış bir KHN filtresinin uygulama örneği olarak kullanılmıştır. Benzetimler SPICE programı aracılığıyla yapılmıştır. AT&T CBIC-R (N-2X ve P-2X) transistör modeli parametreler önerilen BJT tabanlı EDDCC+’nın benzetiminde kullanılmıştır. Teorik hesaplamalar, KHN süzgecinin benzetim sonuçları ile doğrulanmıştır. Elektronik olarak KHN süzgeç devresinde bulunan alçak geçiren, yüksek geçiren ve bant geçiren süzgeçlerin kesim frekansı değiştirilmiştir.

Keywords

• Translineer prensip
• EDDCC+
• elektronik ayarlanabilirlik
• BJT
• KHN süzgeç

Desing of class AB EDDCC+ with the feature of electronic tunability

Abstract

In this paper, a novel BJT-based class AB electronically tunable plus-type differential difference current conveyor (EDDCC+) is proposed, in which a translinear circuit principle is utilized. The current gain of the proposed EDDCC+ can be easily adjusted externally. Electronically tunability is provided by current sources in the translinear loop. The proposed EDDCC+ is simulated through the SPICE program to indicate the functionality of the proposed EDDCC+, where a previously published KHN filter is used as an application example. AT&T CBIC-R (N-2X and P-2X) transistor model parameters are used in the simulation of this circuit. Simulation results of the KHN filter verify theoretical calculations. The cut-off frequency of the low-pass, high-pass, and band-pass filters in the KHN filter circuit has been electronically changed.

Keywords

• Translinear principle
• EDDCC+
• electronically tunable
• BJT
• KHN filter

References

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