| Presentation | 2017-08-02 Energy Efficient Wireless Power Transfer System with Open Loop Dynamic Transmitter Voltage Scaling Control Toru Kawajiri, Hiroki Ishikuro, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper introduces an energy efficient wireless power transfer system in wide load range. In this system, according to change of receiver side power consumption, the driving voltage of the transmitter coil is automatically adjusted. Switching loss can be reduced in proportion to the square of the driving voltage. Therefore, this system can improve total system efficiency. To promote power control speed, the driving voltage is not locally regulated but automatically determined by total system. Test chips are fabricated in 180-nm LDMOS process. This system achieved maximum power efficiency of 50.9% when the output power is 0.5W. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | implantable medical devices / wireless power control / wireless power transfer / magnetically coupled resonant |
| Paper # | SDM2017-49,ICD2017-37 |
| Date of Issue | 2017-07-24 (SDM, ICD) |
| Conference Information | |
| Committee | SDM / ICD / ITE-IST |
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| Conference Date | 2017/7/31(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido-Univ. Multimedia Education Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low voltage/low power techniques, novel devices, circuits, and applications |
| Chair | Tatsuya Kunikiyo(Renesas) / Hideto Hidaka(Renesas) / Shigetoshi Sugawa(Tohoku Univ.) |
| Vice Chair | Takahiro Shinada(Tohoku Univ.) / Makoto Nagata(Kobe Univ.) / Takayuki Hamamoto(Tokyo University of Science) / Hiroshi Ohtake(NHK) |
| Secretary | Takahiro Shinada(Tohoku Univ.) / Makoto Nagata(Renesas) / Takayuki Hamamoto(Univ. of Tokyo) / Hiroshi Ohtake(Panasonic) |
| Assistant | Hiroya Ikeda(Shizuoka Univ.) / Tetsu Morooka(TOSHIBA MEMORY) / Masanori Natsui(Tohoku Univ.) / Masatoshi Tsuge(Socionext) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Silicon Device and Materials / Technical Committee on Integrated Circuits and Devices / Technical Group on Information Sensing Technologies |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Energy Efficient Wireless Power Transfer System with Open Loop Dynamic Transmitter Voltage Scaling Control |
| Sub Title (in English) | |
| Keyword(1) | implantable medical devices |
| Keyword(2) | wireless power control |
| Keyword(3) | wireless power transfer |
| Keyword(4) | magnetically coupled resonant |
| 1st Author's Name | Toru Kawajiri |
| 1st Author's Affiliation | Keio University(Keio Univ.) |
| 2nd Author's Name | Hiroki Ishikuro |
| 2nd Author's Affiliation | Keio University(Keio Univ.) |
| Date | 2017-08-02 |
| Paper # | SDM2017-49,ICD2017-37 |
| Volume (vol) | vol.117 |
| Number (no) | SDM-166,ICD-167 |
| Page | pp.pp.129-134(SDM), pp.129-134(ICD), |
| #Pages | 6 |
| Date of Issue | 2017-07-24 (SDM, ICD) |