13.56 MHz 1.3 kW resonant converter with GaN FET for wireless power transfer

Choi, Joo-Hong; Tsukiyama, Daisuke; Tsuruda, Yoshinori; Rivas, Juan

doi:10.1109/wpt.2015.7140167

Cited by 34 publications

(7 citation statements)

References 18 publications

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“…The zero voltage switching achieved in an LLC converter permits an increase in efficiency, and the high switching frequency reachable (from 1 to tens of MHz) dramatically reduces the resonant tank's size. The LLC converter is one of the much-used converter topologies for inductive wireless power transfer (WPT) systems [43]. Compared with traditional Si-based MOSFETs, the compact size obtained with HEMT devices is a crucial factor for wireless charging applications, especially in drone applications [44] where the available space for the charger is limited.…”

Section: Gan For Dc-dc Power Convertersmentioning

confidence: 99%

Gallium Nitride Power Devices in Power Electronics Applications: State of Art and Perspectives

Musumeci

Barba

2023

Energies

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High-electron-mobility transistors based on gallium nitride technology are the most recently developed power electronics devices involved in power electronics applications. This article critically overviews the advantages and drawbacks of these enhanced, wide-bandgap devices compared with the silicon and silicon carbide MOSFETs used in power converters. High-voltage and low-voltage device applications are discussed to indicate the most suitable area of use for these innovative power switches and to provide perspective for the future. A general survey on the applications of gallium nitride technology in DC-DC and DC-AC converters is carried out, considering the improvements and the issues expected for the higher switching transient speed achievable.

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Section: Gan For Dc-dc Power Convertersmentioning

confidence: 99%

Gallium Nitride Power Devices in Power Electronics Applications: State of Art and Perspectives

Musumeci

Barba

2023

Energies

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“…For example, SiC is predominantly preferred to operate at under 4 MHz [14]- [16]. A team from Stanford University have demonstrated both SiC (900V C3M0065090J) and GaN (650V GS66508B) based 13.56 MHz high frequency resonant converter that achieves an output efficiency of 94% [17], [18]. GaN on the other hand have proved to be far superior in operating at higher than 10 MHz and is preferred in applications like wireless power transfer (WPT) [19], [20].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Operation of Series-Parallel Resonant Load in Industrial RF Dielectric Heating Application

Ahmad

Jørgensen

Munk‐Nielsen

2023

IEEE Trans. on Ind. Applicat.

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“…Unfortunately, scaling up existing commercially available IPT coils, which are typically designed to be driven at frequencies lower than 200 kHz, is not straightforward or practical due to the complexity of the coils, which tend to employ ferrites for flux shaping and shielding, and a considerable number of turns of litz wire. At megahertz, high-Q can be achieved with relatively simple air-core coils from pcb traces, copper pipe or solid wire, typically with one to five turns [15]- [19]. However, designing and building the power electronics circuits to drive the coils at megahertz can be challenging [20].…”

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confidence: 99%

High-Frequency Inductive Power Transfer Through Soil for Agricultural Applications

Arteaga¹,

Sanchez

Elsakloul

et al. 2023

IEEE Trans. Power Electron.

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This paper presents 13.56 MHz inductive power transfer (IPT) through soil for sensors in agricultural applications. Two IPT system designs and their prototypes are presented. The first was designed for gathering data and observing the relationship between the performance of the coil driving circuits in response to water content, salinity, organic matter and compaction of the soil. The second prototype was designed as an application demonstrator, featuring IPT to an inhouse sensor node enclosure buried 200 mm under the surface of an agricultural field. The results highlight that from the parameters studied, the combination of high salinity and high water content significantly increases the losses of the IPT system. The experiments demonstrate an over 40% rise in the losses from dc source to dc load after a 16% increase in soil water content and high salinity. In the technology demonstrator we mounted an IPT transmitter on a drone to wirelessly power an in-house bank of supercapacitors in the buried sensor-node enclosure. A peak power transfer of 30 W received at over 40% efficiency was achieved from a 22 V power supply on the drone to the energy storage under the ground. The coil separation in these experiments was 250 mm of which 200 mm correspond to the layer of soil. The coupling factor in all the experiments was lower than 5%. This system was trialled in the field for forty days and wireless power was performed five times throughout. I. INTRODUCTIONInductive power transfer (IPT) has been rolled out in consumer applications [1], and has been demonstrated and trialled for wireless charging of electric vehicles [2], [3]. There are applications where wireless charging is crucial; for example, in medical implants [4]- [7], and in emerging autonomous

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13.56 MHz 1.3 kW resonant converter with GaN FET for wireless power transfer

Cited by 34 publications

References 18 publications

Gallium Nitride Power Devices in Power Electronics Applications: State of Art and Perspectives

Gallium Nitride Power Devices in Power Electronics Applications: State of Art and Perspectives

Modeling and Operation of Series-Parallel Resonant Load in Industrial RF Dielectric Heating Application

High-Frequency Inductive Power Transfer Through Soil for Agricultural Applications

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