wireless power transfer



Highly resonant wireless power transfer : safe, efficient, and over distance
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Driving home from the airport, Marin noticed his new smart phone was low on battery once again. Its HD display, and apps using GPS, Bluetooth, and LTE/4G data communications conspired to drain the battery quickly. Without looking, he dropped his phone into an open In recent years, significant efforts have been dedicated to developing implantable electronic medical devices for biomedical applications. An incomplete list of such devices includes endoscopic capsule, artificial retinal prosthesis, implantable ECG recorder, artificial heart

Stabilizing the operating frequency of a resonant converter for wireless power transfer to implantable biomedical sensors
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Resonant converters have been applied in wireless power supplies for implantable sensors due to their inherent advantages of low cost, high frequency and high reliability. However, the operating frequency of the resonant converter varies with the load and circuit parameters

Design of wireless power transfer system for railway application
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As wireless power transfer (WPT) technologies emerge in a wide range of applications including public transportation, many expect that applying the technology to the current railway systems will bring positive effects to current railway systems. In this paper, we

Wireless power transfer for e-mobility
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Abstract Wireless Power Transfer (WPT) is the process of transferring power from one circuit onto another without passing through any manmade conductive elements interconnecting them. Several schemes for wireless power transfer exists Inductive, Capacitive, Laser

6.78 MHz capacitive coupling wireless power transfer system
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Wireless power transfer technologies typically include inductive coupling, magnetic resonance, and capacitive coupling methods. Among these methods, capacitive coupling wireless power transfer (CCWPT) has been studied to overcome the drawbacks of other

Categories, standards and recent trends in wireless power transfer : A survey
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Abstract Background/Objectives: The main objective of this survey is to identify the innovative ideas of wireless charging, its history, types and also the various standards adopted along with the challenges, scope and its salient features. Methods/Statistical

Highly resonant wireless power transfer in subsea applications
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Recent technological advances have allowed unmanned underwater vehicles to act with more autonomy, allowing them to embark on longer missions to increasingly deeper and more difficult environments. While these vehicles can navigate themselves as they collect

Wireless power transfer
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Oak Ridge National Laboratorys Power Electronics Symposium Friday, July 2 7:30 AM 3:30 PM (EDT) Oak Ridge National Laboratory (ORNL) Conference Center, Oak Ridge, Tennessee 2 Managed by UT-Battelle for the US Department of Energy There is need for an efficient

Wireless power transfer via electric coupling
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Wireless power transfer technologies are greatly attractive and paid special attention. The reason is because mid- range wireless power transfer named as magnetic reso- nance was presented by MIT in 20071), 2). This phenome- non also holds in the electric field3). However, the wireless

Analysis and optimization of wireless power transfer link
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In this paper, a high efficiency Gallium nitride (GaN), HEMT (High Electron Mobility Transistor) class-E power amplifier for the wireless power transfer link is designed and simulated on PSpice. A four-coil wireless power transfer link is modeled for maximum power

Maximizing efficiency of wireless power transfer with resonant inductive coupling
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Wireless power transfer has been a dream sought after ever since the discovery of electricity. Beginning with electromagnetic induction, physicists and engineers have attempted to increase the efficiency with which electrical power can be transferred through

Cut the cord: wireless power transfer , its applications, and its limits
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The transfer of power from source to receiver is a technology that has existed for over a century. Wireless power transfer (WPT) has been made feasible in recent years due to advances in technology and better implementations of transfer techniques, such as

Design and construction of wireless power transfer system using magnetic resonant coupling
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Wireless power transmission is the transmission of electrical energy without using any conductor or wire. It is useful to transfer electrical energy to those places where it is hard to transmit energy using conventional wires. In this paper, we designed and implemented a

Dosimetry for resonance-based wireless power transfer charging of electric vehicles
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This paper presents the dosimetry of a resonance-based wireless power transfer (RBWPT) system for electric vehicles applications. The compact RBWPT system is designed to transfer power at 150-mm distance. The electric and magnetic fields generated by the RBWPT

Flexible and mobile near-field wireless power transfer using an array of resonators
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In this report, we present a technology to realize flexible and mobile wireless power transfer , which is based on the coupling of an array of resonators. Near-field wireless power transfer using resonant coupling has been shown to be a promising technology for many

Spread spectrum technology to reduce the EMI from the constant voltage source type wireless power transfer system
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The electromagnetic interference (EMI) from the coil system for the wireless power transfer (WPT) with the voltage source and series LC resonance type can be reduced by 20dB at the most by using the spread spectrum technology when operating frequency 20 kHz, peak

Efficiency improvement of wireless power transfer via magneticresonance using the third coil
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A wireless power transfer system via magnetic resonance has been reported by several groups [1-3]. In those reports, two resonance coils work as a transmission coil and a reception coil, respectively. The transfer efficiency between two coils is a function of the

A review on wireless power transfer
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Wireless power is one of the new terms that define this century. In the age of mobility, the need for wireless power transfer (WPT) is growing fast. There are several approaches for transferring the electric power wirelessly. In this paper, different methodologies for WPT are

Numerical electromagnetic analysis of human exposure for wireless power transfer systems
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This paper presents methods to demonstrate scientifically sound assessment of human exposure to wireless power transfer systems. The efficient transfer of wireless power has recently been demonstrated at distances within a few meters . These systems employ





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