Topology Analysis of Wireless Power Transfer Systems Manufactured Via Inkjet Printing Technology

Ortego-Isasa, Iñaki; Benli, Kami Pars; Casado, Félix; Sancho, Juan Ignacìo; Valderas, Daniel

doi:10.1109/tie.2017.2694355

Cited by 16 publications

(4 citation statements)

References 30 publications

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“…With respect to the windings, few alternatives to litz wires have been proposed. PCB coil implementations [35], [36], hollow rectangular conductors [37], printed windings by means of inkjet technology [38], and copper tubes [39] are some examples.…”

Section: Introductionmentioning

confidence: 99%

Magnetizable Concrete Flux Concentrators for Wireless Inductive Power Transfer Applications

Carretero

Lope

Acero

2020

IEEE J. Emerg. Sel. Topics Power Electron.

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Wireless inductive power transfer (IPT) systems incorporate magnetic flux concentrators in order to improve some features, as coupling and efficiency, and also to reduce electromagnetic emissions. Usually, flux concentrators consist of ferrite cores, which are arranged according to the size and shape of inductive power pads and also according to the application. Ferrite is the most common magnetic material due to its optimal balance between performance and cost. Despite the availability of ferrite cores with a wide set of shapes and sizes, in some applications the optimal matching between inductive power paths and flux concentrators becomes problematic. In this work, magnetic cement concrete is evaluated as a size-adaptable material for the arrangement of flux concentrators of IPT systems. Both cement powder and concrete are magnetically characterized at different temperature, field level and frequencies, and measurements show that the achieved levels of permeability, Curie's temperature and losses make this material attractive for potential flux concentrator uses. A potential IPT application is evaluated by means of a finite element study and the results are applied to a prototype design. Feasibility of use of the magnetic cement is tested by means of different power pads according to different flux concentrator arrangements.

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Section: Introductionmentioning

confidence: 99%

Magnetizable Concrete Flux Concentrators for Wireless Inductive Power Transfer Applications

Carretero

Lope

Acero

2020

IEEE J. Emerg. Sel. Topics Power Electron.

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“…The power supply of pacemakers is established by batteries, mainly non-rechargeable primary cells. However, if battery lifetime in implants is limited to some weeks or months due to the high energy demand of stimulation with respect to amplitude or stimulation frequency like in cochlear implants, wireless energy supply is desirable [ 107 ]. While electromagnetic inductive coupling has been established in cochlear implants, mid- or far-field coupling via radio frequency, ultrasound, or light are discussed as alternative methods [ 108 , 109 , 110 ].…”

Section: Challenges and Trendsmentioning

confidence: 99%

Colonic Electrical Stimulation for Chronic Constipation: A Perspective Review

Ortego-Isasa,

Ortega-Morán,

Lozano

et al. 2024

Biomedicines

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Chronic constipation affects around 20% of the population and there is no efficient solution. This perspective review explores the potential of colonic electric stimulation (CES) using neural implants and methods of bioelectronic medicine as a therapeutic way to treat chronic constipation. The review covers the neurophysiology of colonic peristaltic function, the pathophysiology of chronic constipation, the technical aspects of CES, including stimulation parameters, electrode placement, and neuromodulation target selection, as well as a comprehensive analysis of various animal models highlighting their advantages and limitations in elucidating the mechanistic insights and translational relevance for CES. Finally, the main challenges and trends in CES are discussed.

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“…Energies 2018, 11, x FOR PEER REVIEW 3 of 11 compensation network, but other matching topologies can be found in EV wireless chargers [18,19]. Thus, in contrast to [15,16] this paper extends the study of the capacity offered by an inductive link with the following main contributions:…”

Section: Overview Of a Wireless Ev Chargermentioning

confidence: 99%

Impact of Coil Misalignment in Data Transmission over the Inductive Link of an EV Wireless Charger

2018

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The penetration rate of electric vehicles (EVs) will experience a relative increment in the future, so easy to use ways to recharge will be demanded. In this sense, wireless charging represents a safe charging method that minimises user intervention. In a similar way to conductive charge, wireless charging requires some information exchange between the charger primary side and secondary side (battery) for safety and operational reasons. Thus, wireless chargers depend on a communication system for their controlled and correct operation. This paper analysed the communication performance of a wireless EV charger in which the communiction device is part of the wireless power transfer system. Particularly, this work studies how the communication system reacts to power coil displacements, which commonly occur in their conventional performance. The results show that the compensation topology selected to ensure the resonant operation clearly impacts on the communication performance. In particular, the theoretical model and the simulation results demonstrate that the asymmetrical compensation topologies are more stable in terms of the wireless communication channel capacity.Energies 2018, 11, 538 2 of 11 For this information exchange, wired communication is advised against, as it will eliminate the main benefits reported by the wireless chargers. Several wireless-based communication techniques have been proposed as alternatives. The more straightforward strategy consists of opting for some commercial wireless modules, which could be inserted in the primary and secondary sides. Coordination between the modules and some security drawbacks are the main concerns which could make this solution inoperative [7]. To obtain more reliable communication, these solutions can be complemented, or even avoided, by using the same wireless link that is involved with the wireless charger.Several papers have been published regarding the use of the coils for the simultaneous transmission of data and power in EV wireless chargers. In [8], the authors designed a scheme where both data and power are transmitted at the same time. Specifically, data and power are generated at different frequencies (1.6 MHz and 22.4 kHz, respectively). A similar scheme was published in [9]. Both schemes are complex to implement, as they have to add high-frequency data communication modules, extra coils and filters to separate the power and data processing accordingly. As demonstrated in [10,11], additional costs can be avoided if the power converters employed to create the high-frequency signal generate the data signal too. According to this strategy, data and power are transmitted at the same frequency. The work in [10] included experimental results which show how this kind of combination is feasible for a 700-W wireless charger operating at 22 kHz. In fact, the spectrum of the data signal is centered at the frequency in which the wireless charger resonates. On the other hand, the data protocol is based on the BFSK (Binary Frequency Shift Keying).As demonstrated ...

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Topology Analysis of Wireless Power Transfer Systems Manufactured Via Inkjet Printing Technology

Cited by 16 publications

References 30 publications

Magnetizable Concrete Flux Concentrators for Wireless Inductive Power Transfer Applications

Magnetizable Concrete Flux Concentrators for Wireless Inductive Power Transfer Applications

Colonic Electrical Stimulation for Chronic Constipation: A Perspective Review

Impact of Coil Misalignment in Data Transmission over the Inductive Link of an EV Wireless Charger

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