Results 91 to 100 of about 782,951 (248)

Push-Pull DC-DC converter with planar transformer for PV applications

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
There is a trend toward increasing the performance of power electronics converters used in photovoltaic (PV) systems. This paper presents the design and implementation of a Push-Pull DC-DC converter prototype. This power converter typically integrates systems for photovoltaic applications due to high voltage conversion ratio.
Filipe Pereira, Abel Ferreira, Vitor Sobrado, António Martins 0001, Adriano Carvalho 0001   +4 more
openaire   +3 more sources

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

Advanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee, Byung Ik Park, Gihyeon Yim, Hyunjae Yoo, Sangjun Ma, Jundong Park, Jeong‐Yun Sun   +6 more
wiley   +1 more source

Design Algorithm for and Validation of Winding Losses in Large-Capacity Medium-Frequency Distribution Transformers

Energies
Accurately calculating winding losses has always been a significant challenge in the design of large-capacity medium-frequency transformers. This paper presents an accurate design algorithm for calculating the winding losses of a large-capacity medium ...
Tao Jiang, Zhe Yang
doaj   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

Advanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam, Jihyun Kim, Soobeen Ji, In Soo Kim, Sejin Kim, Eungseon Yeon, Do Kyung Hwang, Iva Plutnarová, Zdeněk Sofer, Sang Min Won, Joohoon Kang   +10 more
wiley   +1 more source

OPTIMIZATION OF HIGH FREQUENCY TRANSFORMERS FOR MODERN POWER SUPPLIES [PDF]

Fiabilitate şi Durabilitate
The study of high-frequency transformers is essential for several reasons, especially in the context of the rapid development of electronic and energy technology: 1.
Adina TĂTAR, Cristina IONICI
doaj  

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

Advanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin, Eunjoo Yoo, Ki‐Hoon Son, Hyun‐Sik Kim, Dae‐Hee Han, Jeong Hyeon Son, Seung Hwan Lee, Hong‐Sub Lee   +7 more
wiley   +1 more source

Research and design of transient test platform for DC current transformer

AIP Advances
This article studies the design and simulation of a transient test platform for DC current transformers to verify the effectiveness of the design scheme.
Ying Zhang, Xu Zhang
doaj   +1 more source

Hybrid Resonant DC–DC Converters for DC Transformers in DC Distribution Networks With Limited Reverse Power Flow Range

IEEE Access
In DC distribution networks integrating distributed generation, DC transformers (DCT) exhibit asymmetric forward and reverse power flows, with reverse power flow range being limited. Based on this characteristic, this paper proposes a hybrid resonant (HR)
Kangan Wang, Jianglin Xu, Ke Xu, Min Huang, Zhilei Yao, Weimin Wu   +5 more
doaj   +1 more source

Power Decoupled Multi-Port Dual-Active-Bridge Converter Employing Multiple Transformers for DC Distribution Applications

, 2020
This study proposes a power decoupled multi-port dual-active-bridge (DAB) DC-DC converter employing multiple transformers. Conventional multiport DAB DC-DC converters experience a power coupling issue from the use of a single transformer, which ...
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core  

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source