Results 81 to 90 of about 1,264,818 (258)

Zero-voltage transition soft-switching step-up Cuk power factor converter circuit

Scientific Reports
In conventional Cuk power factor correction (PFC) circuits, the switching devices experience high voltage and current ripples, leading to switching losses and poor power transfer capability.
Hongxing Chen, Jianwen Lin, Jian Xiao, Sijie Li, Shengbin Zhuang   +4 more
doaj   +1 more source

Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing

Advanced Functional Materials, EarlyView.
This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein, Michael F. Agyemang, Michael Schmitt, Jürgen Popp, Martin D. Hager, Stefan Zechel, Ulrich S. Schubert   +6 more
wiley   +1 more source

Soft Switching in Switched Inertance Hydraulic Circuits

, 2017
Switched inertance hydraulic systems (SIHS) use inductive, capacitive, and switching elements to boost or “buck” (reduce) a pressure from a source to a load in an ideally lossless manner.
James D. Van de Ven, Alexander C. Yudell
core   +1 more source

Novel soft-switching interleaved boost converters for renewable energy conversion systems

, 2020
This paper proposes new soft-switching interleaved boost converters (SSIBC) for photovoltaic power generation systems. The SSIBCs presented comprises with additional dual and single auxiliary cells.
Bhajana, V.V.Subrahman. Kumar, Maharana, Manoj Kumar, Pavel Drabek, Madhuchandra Popuri, Drábek, Pavel, Popuri, Madhuchandra, Manoj Kumar Maharana, V.V.Subrahmanya Kumar Bhajana   +7 more
core   +1 more source

Genetically Programmed Shape‐Morphing of Engineered Living Materials

Advanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker, Yuchen Liu, Miguel Baños, Rosanne Schmachtenberg, Mahmudul Hasan, Claudia Fink‐Straube, Luai R. Khoury, Wilfried Weber   +7 more
wiley   +1 more source

Sacrificial‐Layer‐Assisted Heat‐Affected‐Zone Suppression in Laser Patterning of PET for High‐Performance Flexible Devices

Advanced Functional Materials, EarlyView.
A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei, Mirza Sahaluddin, Mostafa Bedewy, Paul W. Leu   +3 more
wiley   +1 more source

An Input-Current Shaping and Soft-Switching Drive Circuit Applied to a Piezoelectric Ceramic Actuator. [PDF]

Micromachines (Basel), 2023
Cheng CA, Cheng HL, Chang CH, Chang EC, Lan LF, Hsu HF.   +5 more
europepmc   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Analysis of Soft Switching Three Level Inverters

, 2016
This study represents a review of soft-switching three level (S3L) inverters. Inverters are classified two levels, three levels and multilevel inverters basically.
BODUR, Hacı, Okumus, Hasan, AKBOY, Erdem   +2 more
core  

DAB unified ZVS control strategy with optimal current stress in full power range under TPS control

IET Power Electronics
Current stress and soft switching range are important performance indexes of dual active bridge DC–DC converter. Based on three‐phase shift control, Karush–Kuhn–Tucker (KKT) algorithm is used to solve the optimal control strategy of current stress under ...
Shuai Cheng, Fusheng Wang, Zongfeng Han, Chuanqi Zhang   +3 more
doaj   +1 more source