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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Komolafe, Abiodun
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Vacuum thermoforming for packaging flexible electronics and sensors in e-textilescitations
- 2023A Novel Screen-Printed Textile Interface for High-Density Electromyography Recordingcitations
- 2023A wearable all printed textile based 6.78 MHz 15 W output wireless power transfer system and it's screen printed joule heater applicationcitations
- 2020Influence of textile structure on the wearability of printed e-textiles
- 2020Influence of textile structure on the wearability of printed e-textiles
- 2020Reliable UHF long-range textile-integrated RFID tag based on a compact flexible antenna filamentcitations
- 2020Dataset for: Influence of textile structure on the wearability of printed e-textiles
- 2017Flexible piezoelectric nano-composite films for kinetic energy harvesting from textilescitations
- 2017Flexible piezoelectric nano-composite films for kinetic energy harvesting from textilescitations
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article
A wearable all printed textile based 6.78 MHz 15 W output wireless power transfer system and it's screen printed joule heater application
Abstract
While research in passive flexible circuits for wireless power transfer (WPT) such as coils and resonators continues to advance, limitations in their power handling and low efficiency have hindered the realization of efficient all-printed high-power wearable WPT receivers. Here, we propose a screen-printed textile-based 6.78 MHz resonant inductive WPT system using planar inductors with concealed metal-insulator-metal tuning capacitors. A printed voltage doubler rectifier based on silicon carbide diodes is designed and integrated with the coils, showing a power conversion efficiency of 80%-90% for 2-40 W inputs over a wide load range. Compared to prior wearable WPT receivers, it offers an order of magnitude improvement in power handling along with higher efficiency (approaching 60%) while using all-printed passives and a compact rectifier. The coils exhibit a simulated specific absorption rate under 0.4 W/kg for 25 W received power, and under 21 °C increase in the coils' temperature for a 15 W DC output. Additional fabric shielding is investigated, reducing harmonics emissions by up to 17 dB. We finally demonstrate a wirelessly-powered textile-based carbon-silver Joule heater, capable of reaching up to 60 °C at 2 cm separation from the transmitter, as a wearable application, which can only be wireless-powered using the proposed system.