Wireless power and information dual transfer system via magnetically coupled resonators
Abstract High-efficiency medium-range wireless power transfer using magnetically coupled resonators requires a wireless data link between the contactless coils to regulate power. Multiplexing the power transfer channel as the information channel is a cost-effective solution for the communication. Ho...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-01-01
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| Series: | Communications Engineering |
| Online Access: | https://doi.org/10.1038/s44172-023-00154-4 |
| _version_ | 1797355746635022336 |
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| author | Xiangning He Sheng Liu Jiande Wu Yue Feng Ruichi Wang Wuhua Li Wanying Weng |
| author_facet | Xiangning He Sheng Liu Jiande Wu Yue Feng Ruichi Wang Wuhua Li Wanying Weng |
| author_sort | Xiangning He |
| collection | DOAJ |
| description | Abstract High-efficiency medium-range wireless power transfer using magnetically coupled resonators requires a wireless data link between the contactless coils to regulate power. Multiplexing the power transfer channel as the information channel is a cost-effective solution for the communication. However, existing technologies cannot transmit data across the medium-range magnetically coupled resonators channel without substantially affecting power transfer. Here we show a power-electronics-converters based wireless power and information dual transfer system in which the information signals are modulated on one dc side of the inverter/rectifier, and transmitted through a conventional medium-range wireless power transfer system, and then demodulated on the other dc side. Using the frequency mixer characteristic of the inverter/rectifier, information is modulated onto the sideband of the power carrier and transmitted through the medium-range channel. Finally, we prototyped a 6.78 MHz system capable of transferring 45 W power across a one-meter distance with 62% efficiency and 60 kb/s bitrate for half-duplex communication. |
| first_indexed | 2024-03-08T14:15:28Z |
| format | Article |
| id | doaj.art-bb41bef8bc3846b9b8d15cc886b6ac89 |
| institution | Directory Open Access Journal |
| issn | 2731-3395 |
| language | English |
| last_indexed | 2024-03-08T14:15:28Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Engineering |
| spelling | doaj.art-bb41bef8bc3846b9b8d15cc886b6ac892024-01-14T12:25:03ZengNature PortfolioCommunications Engineering2731-33952024-01-013111210.1038/s44172-023-00154-4Wireless power and information dual transfer system via magnetically coupled resonatorsXiangning He0Sheng Liu1Jiande Wu2Yue Feng3Ruichi Wang4Wuhua Li5Wanying Weng6College of Electrical Engineering, Zhejiang UniversityCollege of Electrical Engineering, Zhejiang UniversityCollege of Electrical Engineering, Zhejiang UniversityCollege of Electrical Engineering, Zhejiang UniversitySchool of Mechanical, Electrical and Manufacturing Engineering, Loughborough UniversityCollege of Electrical Engineering, Zhejiang UniversityCollege of Electrical Engineering, Zhejiang UniversityAbstract High-efficiency medium-range wireless power transfer using magnetically coupled resonators requires a wireless data link between the contactless coils to regulate power. Multiplexing the power transfer channel as the information channel is a cost-effective solution for the communication. However, existing technologies cannot transmit data across the medium-range magnetically coupled resonators channel without substantially affecting power transfer. Here we show a power-electronics-converters based wireless power and information dual transfer system in which the information signals are modulated on one dc side of the inverter/rectifier, and transmitted through a conventional medium-range wireless power transfer system, and then demodulated on the other dc side. Using the frequency mixer characteristic of the inverter/rectifier, information is modulated onto the sideband of the power carrier and transmitted through the medium-range channel. Finally, we prototyped a 6.78 MHz system capable of transferring 45 W power across a one-meter distance with 62% efficiency and 60 kb/s bitrate for half-duplex communication.https://doi.org/10.1038/s44172-023-00154-4 |
| spellingShingle | Xiangning He Sheng Liu Jiande Wu Yue Feng Ruichi Wang Wuhua Li Wanying Weng Wireless power and information dual transfer system via magnetically coupled resonators Communications Engineering |
| title | Wireless power and information dual transfer system via magnetically coupled resonators |
| title_full | Wireless power and information dual transfer system via magnetically coupled resonators |
| title_fullStr | Wireless power and information dual transfer system via magnetically coupled resonators |
| title_full_unstemmed | Wireless power and information dual transfer system via magnetically coupled resonators |
| title_short | Wireless power and information dual transfer system via magnetically coupled resonators |
| title_sort | wireless power and information dual transfer system via magnetically coupled resonators |
| url | https://doi.org/10.1038/s44172-023-00154-4 |
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