| Presentation | 2015-07-07 Automatic Impedance Matching Technique by Using Air-Variable Capacitor for 6.78MHz-Band WPT System Teruhiko Yamamoto, Keisuke Mikami, Tetsuya Ishida, Toshio Ishizaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For practical application of WPT, it is necessary to reduce a mismatch loss when relative positions of resonators are changed. To reduce the mismatch loss, the authors propose a novel system comprising C-coupled balun and automatic impedance matching technique. In the paper, comparison between C-coupled balun and M-coupled method using loop coil is described. Further, it is shown that mismatch loss of WPT system can be reduced by C-coupled balun, the capacitances of which are controlled by automatic impedance matching circuit. An experimental system equipped with C-coupled balun comprising air-variable capacitors and automatic impedance matching circuit was fabricated. The effectiveness was confirmed by experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | C-Coupled Balun / Automatic Impedance Matching / Class-D Power Supply / Wireless Power Transfer / Resonator |
| Paper # | WPT2015-42 |
| Date of Issue | 2015-06-29 (WPT) |
| Conference Information | |
| Committee | EE / WPT / IEE-SPC |
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| Conference Date | 2015/7/6(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Satoshi Ohtsu(NTT Facilities Research Inst.) / Naoki Shinohara(Kyoto Univ.) / Takeo Kanai(東芝三菱電機産業システム) |
| Vice Chair | Masatoshi Nakahara(Sojo Univ.) / / Hirohito Funato(宇都宮大) |
| Secretary | Masatoshi Nakahara(Fukuoka Univ.) / (Kagoshima Univ.) / Hirohito Funato(Toyohashi Univ. of Tech.) |
| Assistant | Nobuhiko Yamashita(NTT) / Takashi Hikagae(Hokkaido Univ.) / Tsunayuki Yamamoto(Yamaguchi Univ.) / Yusuke Zushi(日産自動車) / Hiroshi Takami(芝浦工大) |
| Paper Information | |
| Registration To | Technical Committee on Energy Engineering in Electronics and Communications / Technical Committee on Wireless Power Transfer / Technical Meeting on Semiconductor Power Converter |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Automatic Impedance Matching Technique by Using Air-Variable Capacitor for 6.78MHz-Band WPT System |
| Sub Title (in English) | |
| Keyword(1) | C-Coupled Balun |
| Keyword(2) | Automatic Impedance Matching |
| Keyword(3) | Class-D Power Supply |
| Keyword(4) | Wireless Power Transfer |
| Keyword(5) | Resonator |
| 1st Author's Name | Teruhiko Yamamoto |
| 1st Author's Affiliation | Ryukoku University(Ryukoku Univ.) |
| 2nd Author's Name | Keisuke Mikami |
| 2nd Author's Affiliation | Ryukoku University(Ryukoku Univ.) |
| 3rd Author's Name | Tetsuya Ishida |
| 3rd Author's Affiliation | Wave Technology Inc.(Wave Technology) |
| 4th Author's Name | Toshio Ishizaki |
| 4th Author's Affiliation | Ryukoku University(Ryukoku Univ.) |
| Date | 2015-07-07 |
| Paper # | WPT2015-42 |
| Volume (vol) | vol.115 |
| Number (no) | WPT-129 |
| Page | pp.pp.37-42(WPT), |
| #Pages | 6 |
| Date of Issue | 2015-06-29 (WPT) |