Results 31 to 40 of about 5,272 (213)

Load-independent Class EF inverters for inductive wireless power transfer [PDF]

open access: yes, 2016
This paper will present the modelling, analysis and design of a load-independent Class EF inverter. This inverter is able to maintain zero-voltage switching (ZVS) operation and produce a constant output current for any load value without the need for ...
Samer Aldhaher   +5 more
core   +1 more source

Efficient Multi-Hop Wireless Power Transfer for the Indoor Environment

open access: yesSensors, 2023
With the rapid development of the Internet of Things (IoT) and wireless sensor networks (WSN), the modern world requires advanced solutions for the wireless powering of low-power autonomous devices. The present study addresses the wireless power transfer
Janis Eidaks   +5 more
doaj   +1 more source

Increasing the Wireless Power Transfer (WPT) Link Efficiency by High Gain Helices [PDF]

open access: yes2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS), 2021
In this study we compare helix and patch array antenna characteristics for wireless power transfer (WPT). It will be shown that the helices offer higher link efficiency for a similar beam scanning limit compared to patch antenna elements. We provide 12-by-12 element planar array results for both cases at different element spacings.
Mardani, Hossein   +3 more
openaire   +2 more sources

Wireless power transfer using Class E inverter with saturable dc-feed Inductor [PDF]

open access: yes, 2014
Resonant converters used as coil drivers in inductive links generally operate efficiently at optimum switching conditions for constant load values and ranges. Changes in load and range can shift the operation of the coil driver to a non-optimum switching
Aldhaher, Samer   +2 more
core   +1 more source

Survey of near-field wireless communication and power transfer for biomedical implants [PDF]

open access: yesEngineering and Technology Journal
Bio-implanted medical devices with electronic components play a crucial role due to their effectiveness in monitoring and diagnosing diseases, enhancing patient comfort, and ensuring safety.
Hala Abduljaleel   +2 more
doaj   +1 more source

A Design Method for Making an LCC Compensation Two-Coil Wireless Power Transfer System More Energy Efficient Than an SS Counterpart

open access: yesEnergies, 2017
A new design approach is presented in this paper to show that under certain conditions, in a two-coil wireless power transfer system, the double-sided inductor-capacitor-capacitor (LCC) compensated wireless power transfer (LCC-WPT) system can be more ...
Xu Liu   +4 more
doaj   +1 more source

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

open access: yesNanomaterials, 2022
The magnetic coupling resonant wireless power transfer (MCR-WPT) system is considered to be the most promising wireless power transfer (WPT) method because of its considerable transmission power, high transmission efficiency, and acceptable transmission ...
De’an Wang   +6 more
doaj   +1 more source

A brief review: basic coil designs for inductive power transfer [PDF]

open access: yes, 2020
The inductive power transfer (IPT) has contributed to the fast growth of the electric vehicle (EV) market. The technology to recharge the EV battery has attracted the attention of many researchers and car manufacturers in developing green ...
Toha, Siti Fauziah   +9 more
core   +1 more source

History and Innovation of Wireless Power Transfer via Microwaves

open access: yesIEEE Journal of Microwaves, 2021
Wireless power transfer (WPT) has a long history of over 100 years since the first experiment conducted by Nicola Tesla. However, the most interesting innovation of WPT was born in the 21st century.
Naoki Shinohara
doaj   +1 more source

Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances

open access: yesEnergies, 2018
An omnidirectional magnetically coupled resonant wireless power transfer (WPT) system based on rotary transmitting coil is presented. The proposed scheme can ease the variations of the transfer efficiency and output power caused by the deviation of ...
Gongjun Liu   +5 more
doaj   +1 more source

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