Aydemir, Mehmet Timur

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A.,Mehmet Timur
A., Mehmet Timur
Aydemir, Mehmet Timur
AYDEMIR, MEHMET TIMUR
Aydemir M.
MEHMET TIMUR AYDEMIR
AYDEMIR, Mehmet Timur
Mehmet Timur AYDEMIR
M. Aydemir
Mehmet Timur, Aydemir
Aydemir,Mehmet Timur
Aydemir,M.T.
Aydemir, M. T.
M. T. Aydemir
Mehmet Timur Aydemir
Aydemir, M.
Aydemir, MEHMET TIMUR
Aydemir T.
AydemIr, M. Timur
Aydemir, M.T.
Aydemir, M.Timur
Aydemir, M. Timur
Job Title
Prof. Dr.
Email Address
timur.aydemir@khas.edu.tr
Main Affiliation
Electrical-Electronics Engineering
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Website
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID

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Scholarly Output

16

Articles

10

Citation Count

56

Supervised Theses

0

Scholarly Output Search Results

Now showing 1 - 4 of 4
  • Conference Object
    Citation - WoS: 4
    Citation - Scopus: 10
    Design and Practical Implementation of a Parallel-Switched Power Factor Correction Boost Converter
    (IEEE, 2021) Rahman, Showrov; Özdemir, Serpil; Kosesoy, Yusuf; Aydemir, Mehmet Timur; Ozdemir, Mehmet Akif; Simsek, Oguz; Aydemir, M. Timur; Chub, Andrii; Electrical-Electronics Engineering; Advertising
    In the past years, applications of Power Factor Correction (PFC) boost converter have increased significantly. One recent application field that requires an efficient PFC boost converter is the Wireless Power Transfer system (WPT). In this paper, the design of a single-phase PFC boost converter is presented. The proposed converter comprises three parallel switches to reduce the component stress and ensuring safe circuit operation. It utilizes FAN6982 Continuous Conduction Mode (CCM) controller. The design of the controller circuit and the controller parameter specifications are presented. Design guidelines for components are provided. The designed PFC boost converter is first validated in PSIM simulation software and then a 1.5 kW/ 350 V-dc prototype is implemented. The experimental results verify that the PFC boost converter achieves the power factor of 0.99 at the full load.
  • Conference Object
    Citation - WoS: 1
    A Load Adaptive Cascade Pi Controller for Buck Converters Operating in Wide Load Range in Cathodic Protection Systems
    (IEEE, 2021) Ozdemir, Mehmet Akif; Aydemir, Mehmet Timur; Simsek, Oguz; Özdemir, Serpil; Aydemir, Mehmet Timur; Electrical-Electronics Engineering; Advertising
    This paper proposes a simple cascade PI controller for Buck converter to be used in impressed current cathodic protection (ICCP) systems which aim to operate in wide voltage and current ranges for any load condition. The Buck converter with cascade controller structure is a frequently used topology in ICCP systems to prevent buried steel pipelines from corrosion. Changes in the environment in which the pipe is embedded force the converter to operate at wide load and voltage ranges. However, in average current mode controllers, the gain of the current loop varies significantly with the load. At light loads, the inner current loop slows down dramatically and may stay behind the outer voltage loop. In order to solve these issues and to maintain the regulation of the pipeline voltage and the average load current, this paper presents a simple cascade PI controller whose coefficients are adapted to the changing load. The small signal analysis of the Buck converter in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is performed and variables determining the transfer characteristics are examined. For the proposed controller, a design criteria based on circuit parameters have been established. With the parameters obtained by the proposed method, a sample cascade controller is designed and compared with classical PI controller in simulation. Also, a digitally controlled 100-W converter prototype is built to validate the performance.
  • Conference Object
    Citation - Scopus: 0
    Parallel-Input Series-Output Z-Source Converters for High Voltage Dc Power Supplies
    (Institute of Electrical and Electronics Engineers Inc., 2023) Ozdemir,M.A.; Aydemir, Mehmet Timur; Aydin,E.; Dag,B.; Tamyurek,B.; Aydemir,M.T.; Electrical-Electronics Engineering
    High Voltage DC power supplies typically employ a high voltage high frequency transformer to step-up the voltage generated by a high frequency inverter. Generally, the step-up ratio of the transformers is high and therefore the effect of the stray capacitance and inductance values is amplified, deteriorating the inverter operation. LCC converters utilizing these stray capacitors are suggested to generate soft switching for better efficiency, but this increases the complexity. Also, the varying nature of the stray capacitance may complicate the control. In this paper, a modular, Parallel-Input Series-Output converter utilizing two z-source dc-dc converters is proposed to step a 350V input to generate 2-kV, 2-kW output. Simulation and experimental results prove that impedance source converters which are generally used in renewable energy applications can also be used at high voltage applications. © 2023 IEEE.
  • Conference Object
    Citation - Scopus: 1
    Dual Side Control Design for a 600w Lcc Compensated Wireless Power Transfer System
    (Institute of Electrical and Electronics Engineers Inc., 2022) Pashaei, A.; Aydemir, Mehmet Timur; Aydin, E.; Aydemir, M.T.; Electrical-Electronics Engineering
    The purpose of this paper is to design a dual side control for a 600 W LCC resonant WPT electrical bicycle with an 85 kHz resonant frequency. Primary side control use inverter voltage and current to determine mutual inductance and load value in coils misalignment case. The secondary side control uses a DC-DC converter that has two voltage and current feedback with a PI controller to achieve CC/CV charging in the battery. Additionally, with primary side control the high-frequency inverter operates in ZVS mode. Optimal design parameters are obtained and results and control method feasibility validated by simulations. © 2022 IEEE.