Browsing 01) WOS İndeksli Yayınlar Koleksiyonu by Author "Umaz, Ridvan"
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A fully batteryless multiinput single inductor single output energy harvesting architecture
Umaz, Ridvan (Tubıtak Scıentıfıc & Technıcal Research Councıl Turkey, 2020)Conventional energy architectures that utilize multiple ambient energy sources are initiated either by an external power supply or through the addition of an extra power source (e.g., battery) to the architecture. However, ... -
A Novel PWM DC-DC Boost Converter with Reduced Voltage Across Filter Capacitance
Sahin, Yakup; Umaz, Ridvan (Ieee, 2019)A novel pulse width modulation DC-DC boost converter reduced voltage across filter capacitance is presented in this paper. As compared to conventional boost converters, the proposed boost converter has lower cost and higher ... -
A Power Management System for Microbial Fuel Cells With 53.02x0025; Peak End-to-End Efficiency
Umaz, Ridvan (Ieee-Inst Electrıcal Electronıcs Engıneers Inc, 2020)This brief presents a power management system (PMS) for microbial fuel cells (MFCs). The proposed PMS has been verified with off-the-shelf components and has been tested with two emulated MFCs. The proposed PMS is comprised ... -
A Single Inductor Self-Startup Energy Combiner Circuit With Bioturbation Resilience in Multiple Microbial Fuel Cells
Umaz, Ridvan (Ieee-Inst Electrıcal Electronıcs Engıneers Inc, 2020)This brief presents a single inductor self-startup energy combiner circuit for multiple microbial fuel cells (MFCs), providing bioturbation resilience. The proposed circuit has been verified with off-the-shelf components ... -
A two-stage power converter architecture with maximum power extraction for low-power energy sources
Umaz, Ridvan (Tubıtak Scıentıfıc & Technıcal Research Councıl Turkey, 2019)A two-stage power converter with maximum power extraction for energy harvesting is presented. The power converter consists of two stages; a maximum power extraction stage (i.e. first stage) and a regulation stage (i.e. ... -
An Architecture for Two Ambient Energy Sources
Umaz, Ridvan; Sahin, Yakup (Ieee, 2019)A self-start-up energy combiner power converter architecture for two ambient energy sources (e.g., microbial fuel cells (MFCs)) is presented in this paper. The proposed architecture is designed with two charge pumps, two ... -
Design of a Single-Stage Power Converter Operating in Burst and Continuous Modes for Low-Power Energy Sources
Umaz, Ridvan (Ieee-Inst Electrıcal Electronıcs Engıneers Inc, 2021)A single-stage power converter, operating in either the burst or continuous mode for low-power energy sources, is presented in this brief. With the proposed converter, the energy from the ambient energy source is processed ... -
Efficient power management circuit for biomass-based energy harvesting system
Umaz, Ridvan (Wıley, 2020)This paper presents an efficient power management circuit (PMC) for microbial fuel cells (MFCs). The proposed PMC has been designed with off-the-shelf components including a charge pump, a supercapacitor, and two boost ... -
Energy Harvesting System with A Single-step Power Conversion Process Achieving Peak Efficiency of 79.1%
Umaz, Ridvan (Ieee, 2020)Energy harvesting interface circuit with a single-step power conversion process is presented in this paper. The energy harvesting system is at the interface between the ambient energy source and the load. The proposed ... -
Integrated power converter design for bioturbation resilience in multi-anode microbial fuel cells
Umaz, Ridvan; Wang, Lei (Inst Engıneerıng Technology-Iet, 2019)Microbial fuel cells (MFCs) are an important renewable energy source for underwater sensors. However, bioturbation problems cause short circuits in MFCs. Using distributed multiple anodes can effectively solve this problem. ... -
Self-startup soil energy harvesting system with a quick startup circuit
Umaz, Ridvan (Inst Engıneerıng Technology-Iet, 2020)This study presents a self-sustainable soil energy harvesting system with a rapid startup circuit. The proposed system enables the operation from input voltage as low as 0.3 V, and to up-convert the output to 3.3 V. The ... -
SIDO: A single-input double-output energy harvesting architecture operating in burst mode with 74.87% peak end-to-end efficiency
Umaz, Ridvan (Wıley, 2021)A single-input double-output (SIDO) energy harvesting architecture implemented with the off-the-shelf components is presented in this paper. The proposed SIDO consists of a step-up converter, a supercapacitor, an output ...
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