| Presentation | 2019-03-08 Coupler Design Criterion Considering Maximum Transmission Efficiency by kQ Product and Element Power Loss of Matching Circuit Hikaru Kitaoka, Daiki Yaginuma, Ryoichi Baba, Takashi Ohira, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the wireless power transmission system, efficiency improvement of the coupler is being studied for improving entire transmission efficiency. However, many of the studies optimize only the efficiency of the coupler alone. In many cases, a matching circuit is required for the coupler. The element power loss of the matching circuit depends on the impedance of the coupler. To improve the transmission efficiency, the shape of the coupler should be best designed by simultaneously taking into account the transmission efficiency of the coupler itself and that of the matching circuit. This report shows a general-purpose criterion for high efficiency coupler design. We use the theoretical maximum transmission efficiency stemming from the kQ product that works for any coupling scheme. Also, for the matching circuit, we employ the theoretical upper bound of power efficiency that works for configuration of the matching circuit. The theoretical transmission efficiency calculated from these two is used as a criterion, and its efficacy is confirmed by simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | wireless power transfer / coupler / matching circuit / maximum power efficiency / design criterion / kQ |
| Paper # | WPT2018-81 |
| Date of Issue | 2019-02-28 (WPT) |
| Conference Information | |
| Committee | WPT |
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| Conference Date | 2019/3/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto Univ. Uji Campus |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Power Transfer, SPS Technology, etc. |
| Chair | Masaharu Takahashi(Chiba Univ.) |
| Vice Chair | |
| Secretary | (Hokkaido Univ.) |
| Assistant | Masahiro Hanazawa(UL Japan) / Nozomi Haga(Gunma Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Wireless Power Transfer |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Coupler Design Criterion Considering Maximum Transmission Efficiency by kQ Product and Element Power Loss of Matching Circuit |
| Sub Title (in English) | |
| Keyword(1) | wireless power transfer |
| Keyword(2) | coupler |
| Keyword(3) | matching circuit |
| Keyword(4) | maximum power efficiency |
| Keyword(5) | design criterion |
| Keyword(6) | kQ |
| 1st Author's Name | Hikaru Kitaoka |
| 1st Author's Affiliation | Toyohashi University of Technology(TUT) |
| 2nd Author's Name | Daiki Yaginuma |
| 2nd Author's Affiliation | Toyohashi University of Technology(TUT) |
| 3rd Author's Name | Ryoichi Baba |
| 3rd Author's Affiliation | Toyohashi University of Technology(TUT) |
| 4th Author's Name | Takashi Ohira |
| 4th Author's Affiliation | Toyohashi University of Technology(TUT) |
| Date | 2019-03-08 |
| Paper # | WPT2018-81 |
| Volume (vol) | vol.118 |
| Number (no) | WPT-484 |
| Page | pp.pp.89-93(WPT), |
| #Pages | 5 |
| Date of Issue | 2019-02-28 (WPT) |