Low frequency wireless power transfer using modified parallel resonance matching at a complex load
In the Impedance Matching (IM) condition of Wireless Power Transfer (WPT), series resonant and strong coupling structures have been widely studied which operate at an optimal parameter, a resistive load, and the high resonant frequency of greater than 1 MHz. However, i) The optimal parameter (partic...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Khon Kaen University
2016-10-01
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| Series: | KKU Engineering Journal |
| Subjects: | |
| Online Access: | https://www.tci-thaijo.org/index.php/kkuenj/article/download/54623/56484 |
| Summary: | In the Impedance Matching (IM) condition of Wireless Power Transfer (WPT), series resonant and strong coupling structures have been widely studied which operate at an optimal parameter, a resistive load, and the high resonant frequency of greater than 1 MHz. However, i) The optimal parameter (particular value) limits the design, ii) the common loads are complex, iii) The high frequency RF sources are usually inefficient. This paper presents a modified parallel resonant structure that can operate at a low frequency of 15 kHz without an optimal parameter under the IM condition with a complex load, and the calculated efficiency is equal to 71.2 % at 5-cm transfer distance. |
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| ISSN: | 0125-8273 2286-9433 |