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    A novel resistorless memristor emulator circuit and its implementation of chaotic Jerk system
    (Elsevier Gmbh, 2024) Saydam, Fatih; Ersoy, Durmuş; Kacar, Firat
    This work presents a novel resistorless memristor emulator circuit designed in both grounded and floating configurations. The grounded memristor consists of a Current-Controlled Current Conveyor Transconductance Amplifier (CC-CCTA) and a capacitor. On the other hand, a floating memristor includes a CC-CCTA and a capacitor, along with an additional Operational Transconductance Amplifier (OTA). These proposed emulators are electronically controllable owing to the internal structures of active elements. Theoretical analysis and simulation results have been obtained for the proposed designs. Simulation results have been conducted utilizing the LTspice program and TSMC 180 nm technology has been used for internal structures. In these results, the effects of the changing capacitor values, different frequencies, electronic tunability, reactions to temperature change, and pulse response have been investigated. Subsequently, a chaotic Jerk circuit has been implemented incorporating the proposed memristor emulator. The chaotic behavior of the floating memristor has been investigated using the LTspice simulation software.
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    Öğe
    Electronically Charge-Controlled Tunable Meminductor Emulator Circuit With OTAs and Its Applications
    (Ieee-Inst Electrical Electronics Engineers Inc, 2023) Ersoy, Durmuş; Kacar, Firat
    Studies on new passive elements with memory properties such as memristor, meminductor, and memcapacitor have increased recently. In this article, an operational transconductance amplifier (OTA) based meminductor simulator circuit without using a memristor, which is suitable for the physically produced memristor structure, has charge control, floating structure, and characteristics can be controlled electronically, is proposed. The OTA IC used is based on 0.18 mu m CMOS technology. The meminductor emulator circuit works in high-frequency regions and has low power consumption. Furthermore, the meminductor emulator circuit can be operated both as a decreasing model and an increasing model. Temperature, MonteCarlo and worst-case analyzes are performed to verify the robustness of the proposed circuit. In this study, a chaotic circuit is designed by taking advantage of the nonlinearity of the proposed meminductor circuit. In addition, a neuromorphic circuit application has been carried out to demonstrate the memory ability of the proposed meminductor circuit. The electronic tunability of the proposed meminductor circuit in both chaotic and neuromorphic applications are demonstrated. The electronic simulations of the applications realized with the proposed meminductor emulator circuit, which are obtained by using the LTspice program.