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Yayın Current inverting metamutator, its implementation with a new single active device and applications(2018-10) Minayi, Elham; Göknar, İzzet CemA new kind of metamutator, namely "Current Inverting Metamutator", its realizations using different types of active blocks and some of its applications like voltage-mode universal biquadratic filter with three input and one output terminals are presented. The proposed circuits can realize all standard filters, namely, low-pass, band-pass, high-pass, notch and all-pass without passive component matching conditions. The proposed circuit offers the features of using grounded capacitors and orthogonal controllability of angular frequency and quality factor. Then a novel realization of metamutator with one active device, additive and differential IC (AD-IC) is proposed and implemented with twelve transistors only. The metamutator with AD-IC has the advantages: (1) of creating new realizations of memristors, capacitance multipliers, inductor simulators, frequency dependent negative resistors which can be used to make IC active filters, (2) less is the number (only one) of active devices, less is the amount of disparity, (3) no need to match passive component values.Yayın Analog PI synchronization circuit design for a memristive Chua's chaotic oscillator(Institute of Electrical and Electronics Engineers Inc., 2025-12-17) Mazak, Ali; Astekin, Dorukhan; Adıgüzel, FatihThis paper presents master and slave synchronization of two op-amp-based Chua's circuits using a feedback-linearization-based proportional-integral (PI)-type controller defined on the error signals between the two oscillators. A single control input is applied to the first state of the slave system for practical simplicity without sacrificing performance. The asymptotic synchronization is shown in the sense of Lyapunov stability theory. The designed synchronization scheme is verified comparatively in both MATLAB and LTspice environments.
