| Presentation | 2017-07-27 [Special Talk] Variable Capacitance Devices and their Application to Power Supplies Akihiko Katsuki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Quantity of ac leakage current and value of distortion factor in capacitor current are discussed on new power component of Variable Capacitance Device (VCD). This component has terminals for controlling its capacitance. For varying the capacitance, nonlinear characteristics of dielectric are utilized in this device. When VCD operates in ac circuit, the ac leakage current from this device through dc control voltage source increases by the conditions of dc control voltage and so on. To solve this problem, we propose techniques for suppressing ac leakage current. Though VCD has strong nonlinear characteristics, the current through the capacitor is not distorted so much. Relations between ac leakage current and distortion in current waveforms are investigated. To evaluate distortion in waveforms, an application example is also introduced about ac power regulator. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Variable Capacitance Device / ac leakage current / dc control voltage / current distortion / ac voltage/current regulator |
| Paper # | EE2017-20,WPT2017-25 |
| Date of Issue | 2017-07-20 (EE, WPT) |
| Conference Information | |
| Committee | EE / WPT / IEE-SPC |
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| Conference Date | 2017/7/27(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Fujio Kurokawa(NiAS) / Chenq Kiyou(Tohoku Univ.) |
| Vice Chair | Masatoshi Nakahara(Sojo Univ.) / Keiichi Hirose(NTT-F) / Tomohiro Seki(Nihon Univ.) |
| Secretary | Masatoshi Nakahara(Fukuoka Univ.) / Keiichi Hirose(NTT) / Tomohiro Seki(Nagoya Inst. of Tech.) / (Hokkaido Univ.) |
| Assistant | kazuhiro Kajiwara(NiAS) / Takashi Matsushita(NTT-F) / Hidenori Maruta(Nagasaki Univ.) / Takehiro Imura(Univ. of Tokyo) / Masahiro Hanazawa(UL Japan) |
| 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 | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Special Talk] Variable Capacitance Devices and their Application to Power Supplies |
| Sub Title (in English) | |
| Keyword(1) | Variable Capacitance Device |
| Keyword(2) | ac leakage current |
| Keyword(3) | dc control voltage |
| Keyword(4) | current distortion |
| Keyword(5) | ac voltage/current regulator |
| 1st Author's Name | Akihiko Katsuki |
| 1st Author's Affiliation | Nagasaki University(Nagasaki Univ.) |
| Date | 2017-07-27 |
| Paper # | EE2017-20,WPT2017-25 |
| Volume (vol) | vol.117 |
| Number (no) | EE-157,WPT-158 |
| Page | pp.pp.65-70(EE), pp.65-70(WPT), |
| #Pages | 6 |
| Date of Issue | 2017-07-20 (EE, WPT) |