| Presentation | 2022-03-07 Magnetic Resonance Wireless Power Transmission with External Q Control by Divided-Capacitance Yasuo Ohno, Hiroko Itoh, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Resonant power transmission circuits can be viewed as an impedance transformer. The transformation ratio varies greatly with the coupling coefficient. As a result, when the coupling coefficient changes, it becomes impossible to maintain the optimum input impedance value in terms of efficiency and power. Therefore, we proposed to control the conversion ratio by varying the external Q with power supply to the divided capacitors. We confirmed this theory by measuring the transmission characteristics around 13.56 MHz with a coil made of aluminum pipes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | wireless power transmission / magnetic resonance / impedance transformation / coupling coefficient / external Q |
| Paper # | WPT2021-24 |
| Date of Issue | 2022-02-28 (WPT) |
| Conference Information | |
| Committee | WPT |
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| Conference Date | 2022/3/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toshio Ishizaki(Ryukoku Univ.) |
| Vice Chair | |
| Secretary | (Okayama Univ.) |
| Assistant | Yoshiaki Narusue(Univ. of Tokyo) / Yuki Tanaka(Panasonic) |
| 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) | Magnetic Resonance Wireless Power Transmission with External Q Control by Divided-Capacitance |
| Sub Title (in English) | |
| Keyword(1) | wireless power transmission |
| Keyword(2) | magnetic resonance |
| Keyword(3) | impedance transformation |
| Keyword(4) | coupling coefficient |
| Keyword(5) | external Q |
| 1st Author's Name | Yasuo Ohno |
| 1st Author's Affiliation | Laser Systems Inc.(LaS) |
| 2nd Author's Name | Hiroko Itoh |
| 2nd Author's Affiliation | Laser Systems Inc.(LaS) |
| Date | 2022-03-07 |
| Paper # | WPT2021-24 |
| Volume (vol) | vol.121 |
| Number (no) | WPT-414 |
| Page | pp.pp.21-24(WPT), |
| #Pages | 4 |
| Date of Issue | 2022-02-28 (WPT) |