Browsing by Author "Parlar, Ishak"

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Comparison of the Output Parameters of the Memristor-Based Op-Amp Model and the Traditional Op-Amp Model
(Springer, 2022) Parlar, Ishak; Almali, M. Nuri
A new operational amplifier (op-amp) model has been proposed using a memristor emulator based on the linear TiO2 drift model. Simulation studies and numerical analyses of the new op-amp model designed using memristor are given. Frequency, unit, switching and electrical characteristic tests of the proposed op-amp model were performed. The parameter comparisons of the traditional op-amp and the proposed op-amp model are given in a detail table. In addition, the efficiency of the proposed op-amp model was realized with application circuits, and the reliability of the system was verified with the results.
Experimental and Simulation Results of Wien Bridge Oscillator Circuit Realized With Op-Amp Designed Using a Memristor
(Springer, 2022) Parlar, Ishak; Almali, M. Nuri
In this study, a new op-amp model was created by re-designing the internal structure of the traditional operational amplifier (741 family) circuit element with a linear dopant drift TiO2 memristor (LDDTM) emulator model. The optimized working conditions and states of this proposed op-amp model were determined. Wien bridge oscillator circuit realized with memristive based op-amp model has been investigated on oscillating start time, settling time, fast fourier transform (FFT) analysis and output parameters. In addition, the efficiency of the wien bridge oscillator circuit realized with a memristor-based opamp has been tested with application circuits and the accuracy and applicability of the proposed memristor-based opamp model has been extensively examined theoretically and supported by experimental and simulation results. Finally, both the simulation and experimental results of the oscillator circuits realized with a memristor-based opamp are presented in detail in tables.
A New Operational Amplifier Model Using a Memristor Emulator Circuit and Application To a Phase-Shifted Oscillator Circuit
(Gazi Univ, Fac Engineering Architecture, 2024) Parlar, Ishak; Almai, M. Nuri
In this study, the internal structure of the conventional operational amplifier (741 family) circuit element was redesigned with the linear TiO2 drift fast memristor (DTSHM) emulator model and a new op-amp model was created. The optimized operating conditions and states of this proposed op-amp model were redetermined. A memristor-based op-amp model was used as the amplifier element in the phase shift oscillator (FKO) circuit, which is one of the RC oscillators. With the proposed new FKO, oscillation start time, settling time, fast fourier transform (FFT) analysis and their effects on the output parameters were both experimentally and simulated. In this study, the proposed new oscillator model is evaluated in detail not only in the medium frequency region but also in the low and high frequency regions. In addition, the efficiency of these circuits is integrated with the application circuits and the accuracy and applicability of the proposed op-amp model are studied comprehensively theoretically and supported by experimental and simulation results. Finally, both the simulation and experimental results of the oscillator circuits realized with the proposed op-amp model are presented in detail in tables.