Results 61 to 70 of about 7,098,076 (263)

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

WPT system for constant current and constant voltage charging based on switched resonant frequency

open access: yesWireless Power Transfer
This paper designs and implements an innovative WPT system that possesses the capability to seamlessly switch between constant current (CC) and constant voltage (CV) outputs, thereby fully satisfying the various charging requirements of batteries for ...
Zhen Guo   +7 more
doaj   +1 more source

Feasibility study of a wireless power transfer system applied to a left ventricular assist device

open access: yes, 2019
This study deals with the design of a wireless powering system for a left ventricular assist device (LVAD). The proposed system uses the wireless power transfer (WPT) technology based on the magnetic resonant coupling.
Orlando F.   +9 more
core   +1 more source

Wireless Power Transfer Using Double DD Coils

open access: yes, 2021
This paper deals with a wireless power transfer system where a novel structure of transmitting/receiving double DD coils is applied. This system uses two identical double D (DD) transmitter coils stacked on each other to transfer power to two stacked ...
Miro Milanovič   +2 more
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Modeling and application of hybrid multi permeability Fe-based flexible nanocrystalline laminated ribbon core structure in WPT systems

open access: yesWireless Power Transfer
Flexible soft magnetic materials represented by nanocrystalline have been widely used in magnetic couplers of wireless power transfer systems due to their superior electromagnetic properties and mechanical flexibility in recent years.
De'an Wang   +4 more
doaj   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

open access: yesAdvanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik   +13 more
wiley   +1 more source

Implementation of a CC-CV wireless charging bidirectional resonant converter for electric vehicles

open access: yesWireless Power Transfer
In this study, a contactless bidirectional power converter with magnetic induction is proposed to transfer the power bi-directionally between a DC power grid and EV battery with a digital control mechanism.
Sen-Tung Wu, Jung-Yu Chen
doaj   +1 more source

Enhanced wireless power transfer procedure via real-time beaming

open access: yes, 2016
The paper describes an intentional wireless power transfer procedure based on an augmented reconfigurability of time-modulated arrays. The standard switch control sequences choice is enriched by the presence of a reconfigurable feeding network: in this ...
Diego Masotti   +3 more
core   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

open access: yesAdvanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko   +2 more
wiley   +1 more source

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