Results 51 to 60 of about 18,411 (257)

Design and control of a bidirectional wireless charging system using GaN devices [PDF]

open access: yes, 2019
Most of the existing wireless power transfer system works in unidirectional with one-direction control signals. This paper presents a bidirectional wireless charging system with duplex communication method, which is not only able to achieve the two-way ...
Gu, Bowen   +4 more
core   +2 more sources

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

New Insight of Maximum Transferred Power by Matching Capacitance of a Wireless Power Transfer System [PDF]

open access: yesEnergies, 2017
Most research on wireless power transfer (WPT) has been focused on how to achieve a high-efficiency power transfer. Our study found that under the impedance matching for achieving maximum WPT efficiency, the power transferred to the load cannot reach the maximum when a WPT system is supplied by an AC voltage source with constant amplitude. However, the
Chunyan Xiao   +3 more
openaire   +1 more source

Frequency Bifurcation Conditions for Capacitive Wireless Power Transfer with Multiple Receivers

open access: yes2022 Wireless Power Week (WPW), 2022
Abstract: Capacitive wireless power transfer applies the electric field to transport energy from a transmitter to a receiver. However, if the distance between transmitter and receivers varies, the efficiency or power transfer is reduced for a system with a fixed load.
Lecluyse, Cédric   +2 more
openaire   +3 more sources

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

open access: yesAdvanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu   +5 more
wiley   +1 more source

Coupling-Independent Capacitive Wireless Power Transfer With One Transmitter and Multiple Receivers Using Frequency Bifurcation

open access: yesIEEE Open Journal of Power Electronics
Capacitive wireless power transfer utilizes capacitive coupling to transfer electrical energy wirelessly. Due to the nature of the coupling, it is seen as a well-suited technique for single input multiple outputs configurations.
Aris van Ieperen   +2 more
doaj   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

open access: yesAdvanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo   +2 more
wiley   +1 more source

A Copper Foil Electromagnetic Coupler and Its Wireless Power Transfer System without Compensation

open access: yesWorld Electric Vehicle Journal, 2021
This paper proposes a copper foil electromagnetic coupler integrating inductance and capacitance and its wireless power transfer (WPT) system without additional compensation structure.
Xueying Wu, Mingxuan Mao
doaj   +1 more source

Low power wireless sensor network for building monitoring [PDF]

open access: yes, 2011
A wireless sensor network is proposed for monitoring buildings to assess earthquake damage. The sensor nodes use custom-developed capacitive MEMS strain and 3D acceleration sensors and a low power readout ASIC for a battery life of up to 12 years.
Bertsch, Nicolas   +11 more
core   +1 more source

Energy Coupled Mode Theory for an arbitrary number of resonators

open access: yes, 2014
There is recent interest in the inter and intra element interactions of metamaterial unit cells. To calculate the effects of these interactions which can be substantial, an ab initio general coupled mode equation, in the form of an eigenvalue problem, is
Elnaggar, Sameh Y.   +2 more
core   +1 more source

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