Kurum Yazarı "Karakulak, Ertuğrul" Çorlu Mühendislik Fakültesi Koleksiyonu İçin Listeleme
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ANN Circuit Application of Complementary Resistive Switches
Uçar, Erdem; Karakulak, Ertuğrul; Mutlu, Reşat (2019)Artificial neural networks are successfully used for classification, prediction, estimation, modeling and system control. However, artificial neural networks integrated circuits are expensive and not matured enough. ... -
ARM MCU-Based Experimental EEG Signal Generator Using Internal DAC and PWM Outputs
Karakulak, Ertuğrul (Gazi Universitesi, 2022)Electrophysiological signal generators are widely used in biomedical engineering research, biomedical education and the testing of devices in hospitals. Such signal generators are also available commercially. The EEG ... -
Emulator circuit of Ti02 memristor with linear dopant drift made using analog multiplier
Mutlu, R.; Karakulak, Ertuğrul (2010)Memristors or charge-controlled memristive systems , are not available for experimental studies in market. In literature, emulators which mimicks memristor behaviour for studying and teaching of memristor do exist. In this ... -
Implementation of a Microcontroller-Based Chaotic Circuit of Lorenz Equations
Lorenz equations are commonly used in chaos education and studies. Simulation programs can be used to produce solutions of Lorenz equations and to examine its chaotic waveforms. However, sometimes a chaotic signal source ... -
Implementation of Microcontroller-Based Memristive Chaotic Circuit
Yener, Şuayb Çağrı; Barbaros, C.; Mutlu, Reşat; Karakulak, Ertuğrul (Polish Acad Sciences Inst Physics, 2017)In 1971, Leon Chua theoretically postulated that the memristor is the fourth fundamental circuit element, besides the three well-known circuit elements; namely, resistor, capacitor and inductor. For a long time, because ... -
The memristive system behavior of a diac
Karakulak, Ertuğrul; Mutlu, Reşat (Springer, 2020)The memristor was introduced as a nonlinear circuit element in 1971, and systems showing memristor-like properties such as zero-crossing hysteresis loops were described in 1976. In 2008, a thin-film system that behaved ... -
Memristor emulators with symmetric and asymmetric threshold voltages
Mutlu, Reşat; Üstünel, Tayfun; Karakulak, Ertuğrul (IEEE, 2018)Memristor, a fundamental circuit element, was predicted to exist in 1971 by Leon Chua. Chua used an emulator to show how a real memristor would behave in 1971. A memristive system which behaves as a memristor for some part ... -
Memristor-Based Phase Shifter
Mutlu, Reşat; Karakulak, Ertuğrul (IEEE, 2018)Memristor is a new nonlinear circuit element. It is a special case of memristive systems. It has a charge-dependent resistance and a frequency dependent hysteresis curve when excited with an AC source. It has been claimed ... -
Memristor-based series voltage regulators
Yavuz, Kutluhan Kürşat; Karakulak, Ertuğrul; Mutlu, Reşat (Slovak Univ Technology, 2019)Series linear voltage regulators are integrated circuits commonly used to make adjustable voltage sources. When used with potentiometers, these regulators are able to give adjustable voltage at the output. Memristor is a ... -
Memristör Tabanlı Negatif-Pozitif Kazanç Devresi
Karakulak, Ertuğrul; Mutlu, Reşat; Uçar, Erdem (2018)Memristörler, doğrusal ve zamanla değişmeyen devre elemanları kullanılarak yapılamayacak bazı analog uygulamalar için büyük bir potansiyel vaat eden non-lineer devre elemanlarıdır. Bilimsel literatürde bazı memristör tabanlı ... -
Reconstructive sensing circuit for complementary resistive switches-based crossbar memories
Karakulak, Ertuğrul; Mutlu, Reşat; Uçar, Erdem (Tubitak Scientific & Technical Research Council Turkey, 2016)Complementary resistive switches (CRSs) are suggested as an alternative to one-cell memristor memories to decrease leakage currents. However, their sensing is more difficult and complex than one-cell memristor memories. A ... -
Sneak path current equivalent circuits and reading margin analysis of complementary resistive switches based 3D stacking crossbar memories
Karakulak, Ertuğrul; Mutlu, Reşat; Uçar, Erdem (Soc Microelectronics, Electron Components Materials-Midem, 2014)Sneak path currents of resistive memories is an important issue. They increase with increasing memory size and should be minimized for a usable resistive memory. The complementary resistive cells have been suggested as an ... -
Spice model of current polarity-dependent piecewise linear window function for memristors
Karakulak, Ertuğrul; Mutlu, Reşat (Gazi Universitesi, 2020)Memristor and memristive systems are nonlinear systems. It is important to model them accurately. There are different memristor models and most of the models make use of window functions. In literature, there are various ... -
SPICE Model of Current Polarity-Dependent Piecewise Linear Window Function for Memristors
Karakulak, Ertuğrul; Mutlu, Reşat (2020)Memristor and memristive systems are nonlinear systems. It is important to model them accurately. There are different memristor models and most of the models make use of window functions. In literature, there are various ... -
STM32F429 Discovery Board-Based Emulator for Lotka-Volterra Equations
Lotka-Volterra equations are commonly used in prey-predator population studies. Simulation programs are commonly used to produce solutions of Lotka-Volterra equations and to examine their initial value dependendence. In ... -
Ters-Paralel Bağlı Schottky Diyot Dizisi Tabanlı Van der Pol Osilatörü Devresinin Modellenmesi ve LTspice ve Simulink Kullanarak Analizi
Mutlu, Reşat; Karakulak, Ertuğrul; Çakır, Kübra (2021)Van der Pol Osilatörü 1926 yılında, Philips’te çalışan elektrik mühendisi ve fizikçi Dr. Balthasar Van der Pol tarafından keşfedilmiştir. Bu osilatör çeşidinin oldukça zengin dinamikleri mevcuttur. İlk yapılan Van der Pol ...