Results 121 to 130 of about 49,972 (308)

Soft-switching Technology for WPT System Based on Voltage Source LCL Resonant Network

open access: yesKongzhi Yu Xinxi Jishu, 2018
When applying WPT technology in high power field, where operating frequency and power level of the system are higher, bigger switching losses is frequently observed. Soft switch technology is one of the effective ways to reduce switching loss. This paper
CHEN Jiang   +4 more
doaj  

Auxeticity‐by‐Assembly: Interlocking Modular Auxetic Metamaterials with Selectively Activatable AgNW–Graphene Oxide‐EGaIn Composite Interconnects for Scalable Freeform Photovoltaic Modules

open access: yesAdvanced Functional Materials, EarlyView.
Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang   +15 more
wiley   +1 more source

Robust Polymer Hydrogels Improve Electric‐Fish‐Inspired Batteries

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Electric‐fish‐inspired hydrogel batteries based on ion‐concentration gradients offer an attractive route to soft power sources; however, the poor mechanical properties of existing hydrogels limit device assembly and performance. Here, we report poly(ethylene glycol) methyl ether acrylate hydrogels that enable ion‐gradient batteries composed of
Nick Zahnd   +5 more
wiley   +1 more source

ZVS Soft-switching Push-pull DC/DC Converter

open access: yesKongzhi Yu Xinxi Jishu, 2011
For the application of push-pull DC-DC converter, two soft-switching circuits with the LLC series resonant and LCL parallel resonant on sub-side of the transformer are investigated.
袁义生, 熊晶, 艾东兵
doaj  

Extended high gain DC‐DC converter with switched‐inductors, switched‐capacitors and soft‐switching: Analysis and implementation

open access: yesIET Power Electronics
This paper proposes an extended DC‐DC converter with high voltage conversion ratio and soft‐switching ability. The proposed converter has active switched‐inductors, switched‐capacitors included in the conventional high gain converter and operates in ...
Pravat Biswal   +4 more
doaj   +1 more source

Four Quadrant Convertor [600A, 12V] Prototype for LHC [PDF]

open access: yes, 1999
The CERN Large Hadron Collider (LHC) project will make extensive use of true bipolar power converters [±600 A, ±12 V]. The need to install the power converters in excavated caverns underground requires considerably reduced dimensions and high efficiency.
Bordry, Frederick   +3 more
core  

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

open access: yesAdvanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Trajectory Control Approach for Single-Stage Soft-Switching Grid-Tied Inverters

open access: yesApplied Sciences
This paper presents a trajectory control model using finite state machines for a single-stage soft-switching grid-tied inverter designed with a fast dynamic response. The targeted application is a module-integrated inverter for a single photovoltaic (PV)
Seunghun Baek
doaj   +1 more source

High speed induction motor and inverter drive for flywheel energy storage [PDF]

open access: yes
The use of flywheels to store energy is a technology which is centuries old. The confluence of several modern technologies has resulted in flywheels becoming a viable solution for the needs of the transportation, electric utility, and aerospace ...
Caprio, M.T.   +5 more
core  

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