Results 71 to 80 of about 80,800 (296)

Design Methodology of Tightly Regulated Dual-Output LLC Resonant Converter Using PFM-APWM Hybrid Control Method [PDF]

, 2019
A dual-output LLC resonant converter using pulse frequency modulation (PFM) and asymmetrical pulse width modulation (APWM) can achieve tight output voltage regulation, high power density, and high cost-effectiveness.
HakSun Kim, HwaPyeong Park, JeeHoon Jung, Ji, Mina Kim, Xi   +5 more
core   +1 more source

Quantifying Spatio‐Operational Heterogeneity in Electrochemical Devices via Operando Correlative Neutron and X‐Ray Tomography

Advanced Functional Materials, EarlyView.
Heterogeniety in electrochemical systems heavily influences device performance and durability. The study shows unique evidence of spatio‐operational heterogeneity in fuel cells via operando neutron and X‐ray tomography. Large variations in membrane thickness and hydration depend upon location and operating conditions, with implications on membrane ...
Pranay Shrestha, Jacob M. LaManna, Kieran F. Fahy, ChungHyuk Lee, Pascal J. Kim, Jason K. Lee, Elias Baltic, Daniel S. Hussey, David L. Jacobson, Aimy Bazylak   +9 more
wiley   +1 more source

Analysis of Active Clamp Fly Back Converter

Modern Applied Science, 2014
This paper proposes an active-clamp fly back dc-dc converter using an isolated transformer. This converter consists of two switches namely auxiliary and main switch. The auxiliary switch is mainly added to reduce the voltage ripples especially on the primary side of the isolated high frequency transformer.
P. Anto Jailyn, Alagu Dheeraj, V. Rajini
openaire   +2 more sources

Multiphase current controlled buck converter with energy recycling Output Impedance Correction Circuit (OICC): Adaptive Voltage Positioning (AVP) and Dynamic Voltage Scaling (DVS) application [PDF]

, 2015
Modern microprocessors impose strict specifications on Voltage Regulating Modules (VRMs) with advanced features such as Dynamic Voltage Scaling (DVS) and Adaptive Voltage Positioning (AVP).
Alou Cervera, Pedro, Cobos Marquez, Jose Antonio, Cortés González, Jorge, García, O., Oliver Ramírez, Jesús Angel, Svikovic, Vladimir   +5 more
core   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Meta-Heuristics Based Design and Optimization of Active Clamp Flyback Converter for USB PD

IEEE Access
The escalating demand for small, compact, and economical consumer electronics necessitates efficient power conversion at higher switching frequencies. The active-clamp flyback (ACF) converter, offering isolation, efficient performance at low and medium ...
Omer Said Aydin, Abdulsamed Lordoglu, Meltem Lordoglu, Arda Akyildiz, Bati Eren Ergun, Mehmet Onur Gulbahce   +5 more
doaj   +1 more source

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

Advanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv, Haifu Sun, Wenxiang Tang, Yonggang Li, Zhonglai Qian, Lihui Hong, Chong Chen, Hongye Li, Jiaxiang Bai, Yusen Qiao, Mingming Liu   +10 more
wiley   +1 more source

3D Digital Light Processing of Redox‐Active Polymers for Electrochemical Applications

Advanced Functional Materials, EarlyView.
3D printing of electrochemically switchable conducting polymers is achieved by Digital Light Processing of redox‐active carbazole‐based polymer materials. Complex 2D and 3D architectures including dot arrays and pyramids clearly show the potential for novel 3D switchable electrochemical devices for sensors, electrochromic displays as well as 3D printed
Christian Delavier, Svenja Bechtold, Marcus H. Dodds, Eva Blasco, Sabine Ludwigs   +4 more
wiley   +1 more source

Fault Diagnosis and System Reconfiguration Based on Switching Sequence Technology for ANPC Three‐Level Cascaded Inverter

IET Electric Power Applications
This paper proposed a fault diagnosis and system reconfiguration based on switching sequence technology for active neutral point clamped (ANPC) three‐level cascaded inverter.
Pengcheng Han, Chao Wu, Ying Lou, Fei Li
doaj   +1 more source

A Photovoltaic Power System Using a High Step-up Converter for DC Load Applications

Energies, 2013
This paper presents a power system using a high step-up converter for dc load applications. The high step-up converter adopts a boost converter with interleaved mode and a coupled inductor to raise its powering ability and increase its step-up voltage ...
Hung-Yuan Wang, Sheng-Yu Tseng
doaj   +1 more source