Analysis of Memcapacitor Based Low Pass Filter

Abstract

Discovery of memristor (memory resistor) element, which describes the relationship between electrical charge and magnetic flux and represents a two-terminal element whose resistance changes depending on the applied voltage, formed the basis of memristive systems. By associating the capacitor and inductor elements with the memristive systems, the working area of memristive systems has been expanded and the new memory circuit elements called memcapacitor (memory capacitor) and meminductor (memory inductor) have taken their place in the literature in addition to the memristor. The characteristic behavior of the memcapacitor shows the pinched hysteretic loop in the two state variables which are described as the electrical charge and the voltage. In this study, the memcapacitor element and its emulator circuit are considered for the analysis of a low-pass filter (LPF) circuit. Thus, the performance quality of the low-pass filter circuits with standard capacitor and memcapacitor is compared. As a result of the comparison, it was concluded that the low-pass filter circuit based on memcapacitor provides relatively better filtering performance than the classical filter circuit. In addition, it has been observed that the reactive power consumed by the memcapacitor is less than the reactive power consumed by the standard capacitor, as a result of the memcapacitor drawing less current from the circuit compared to the standard capacitor. These contributions offer promising results for future electronic studies.

Keywords

• Memristive systems
• memcapacitor
• low pass filter
• performance comparison

Analysis of Memcapacitor Based Low Pass Filter

Abstract

Elektrik yükü ile manyetik akı arasındaki ilişkiyi tanımlayan ve uygulanan gerilime bağlı olarak direnci değişen iki uçlu bir elemanı temsil eden memristör (hafızalı direnç) elemanının keşfi, memristif sistemlerin temelini oluşturmuştur. Kondansatör ve indüktör elemanlarının memristif sistemlerle ilişkilendirilmesi ile memristif sistemlerin çalışma alanı genişletilmiş ve memristöre ek olarak memkapasitör (hafızalı kondansatör) ve memindüktör (hafızalı indüktör) olarak adlandırılan yeni hafızalı devre elemanları literatürde yerini almıştır. Memkapasitörün karakteristik davranışı, elektrik yükü ve voltaj olarak tanımlanan iki durum değişkeninde sıkışmış histeretik döngü şeklinde gösterilmektedir. Bu çalışmada, bir alçak geçiren filtre (AGF) devresinin analizi için memkapasitör elemanı ve onun emülatör devresi ele alınmıştır. Böylece standart kondansatörlü ve memkapasitörlü alçak geçiren filtre devrelerinin performans kalitesi karşılaştırılmıştır. Karşılaştırma sonucunda memkapasitör tabanlı alçak geçiren filtre devresinin klasik filtre devresine göre nispeten daha iyi filtreleme performansı sağladığı sonucuna varılmıştır. Ayrıca memkapasitörün standart kondansatöre göre devreden daha az akım çekmesi sonucunda memkapasitörün tükettiği reaktif gücün standart kondansatörün tükettiği reaktif güçten daha az olduğu gözlemlenmiştir. Bu katkılar, gelecekteki elektronik çalışmalar için umut verici sonuçlar sunmaktadır.

Keywords

• Memristif sistemler
• memkapasitör
• alçak geçiren filtre
• performans karşılaştırması.

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