Free-Positioning Wireless Power Transfer Using a 3D Transmitting Coil for Portable Devices
| Autor: | Nam Ha-Van, Hoang Le-Huu, Minh Thuy Le, Kwangsuk Park, Chulhun Seo |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of Electromagnetic Engineering and Science, Vol 20, Iss 4, Pp 270-276 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2671-7255 2671-7263 |
| DOI: | 10.26866/jees.2020.20.4.270 |
| Popis: | The free-positioning wireless power transfer (WPT) system has drawn attention in recent years. Traditionally, a WPT system can transfer energy in one or two directions on the same plane, but it leads the restrictions of angle and axis misalignment between a transmitter and a receiver coil. In this paper, we propose a free-positioning WPT system using a three-dimensional cubic-shaped transmitting coil for portable device charging. A small receiving coil is placed inside the transmitter to achieve the transferred energy through the magnetic resonant coupling. In addition, the equivalent circuit and the mutual inductance between the Tx and Rx coils are analyzed. Finally, a practical experiment is implemented to verify the transfer performance, which can reach up to about 50% power transfer efficiency. The proposed system can charge in spatial freedom. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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