| Presentation | 2018-06-15 Auto Matching Circuit for Wireless Power Transfer System Masayoshi Kanno, Hisashi Shigetani, Kentaro Morito, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the 6.78MHz wireless power transfer system using magnetic resonance, we propose an auto matching circuit by using voltage controlled tunable device(VCTD). VCTD is comprised of the dielectric thin film materials of the high dielectric constant and has a characteristic to hold out to the high voltage in small size. The modules composed of serial and parallel connection of VCTDs have been installed in the L type matching circuit. Efficiency was 62.3% at 5 W power reception with distance between antennas 30 mm. Good agreement with simulation results by Spice and the estimated loss of the L type matching circuit was 8%. By setting the impedance to be constant, it was possible to enlarge the reception area more than twice as φ50mm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless Power Transfer / Tunable Capacitor / Auto Matching Circuit / 6.78MHz / Magnetic Resonance / Class D Amplifier / Thin Film / High Dielectric Constant |
| Paper # | WPT2018-16 |
| Date of Issue | 2018-06-07 (WPT) |
| Conference Information | |
| Committee | EMCJ / WPT |
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| Conference Date | 2018/6/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Osami Wada(Kyoto Univ.) / Masaharu Takahashi(Chiba Univ.) |
| Vice Chair | Kensei Oh(Nagoya Inst. of Tech.) |
| Secretary | Kensei Oh(Tokyo Inst. of Tech.) / (Mitsubishi Electric) |
| Assistant | Shinobu Nagasawa(Mitsubishi Electric) / Shinichiro Yamamoto(Univ. of Hyogo) / Takanori Unou(Denso) / Masahiro Hanazawa(UL Japan) / Nozomi Haga(Gunma Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility / 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) | Auto Matching Circuit for Wireless Power Transfer System |
| Sub Title (in English) | |
| Keyword(1) | Wireless Power Transfer |
| Keyword(2) | Tunable Capacitor |
| Keyword(3) | Auto Matching Circuit |
| Keyword(4) | 6.78MHz |
| Keyword(5) | Magnetic Resonance |
| Keyword(6) | Class D Amplifier |
| Keyword(7) | Thin Film |
| Keyword(8) | High Dielectric Constant |
| 1st Author's Name | Masayoshi Kanno |
| 1st Author's Affiliation | Bifrestec Inc.(Bifrestec) |
| 2nd Author's Name | Hisashi Shigetani |
| 2nd Author's Affiliation | TAIYO YUDEN CO., LTD.(TAIYO YUDEN) |
| 3rd Author's Name | Kentaro Morito |
| 3rd Author's Affiliation | TAIYO YUDEN CO., LTD.(TAIYO YUDEN) |
| Date | 2018-06-15 |
| Paper # | WPT2018-16 |
| Volume (vol) | vol.118 |
| Number (no) | WPT-87 |
| Page | pp.pp.31-36(WPT), |
| #Pages | 6 |
| Date of Issue | 2018-06-07 (WPT) |