| Presentation | 2018-01-30 Input Acrive-Clamp Circuit for Low Power AC/DC Converter Shohtaroh Sohma, Yuji Takeyama, Nishijima Kimihiro, Shoya Takashita, Terukazu Sato, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To achieve miniaturization and high efficiency of AC adapter for laptop PC, this paper proposes an isolated AC/DC converter with input voltage active-clamp circuits. The essential feature of the active-clamp method is to clamp a worldwide AC input voltage (85 V to 264 V) to a predetermined voltage by using the input active-clamp switch so as to limit the voltage to be applied to the trailing-stage circuit. Thus, this feature not only allows the use of low withstand voltage component at a low cost but also downsizes the smoothing capacitors. This paper presents the advantages and challenges of the active-clamp technique applied to the isolated AC/DC converter. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | AC adapter / AC/DC converter / Active clamp / ZVS |
| Paper # | EE2017-74 |
| Date of Issue | 2018-01-22 (EE) |
| Conference Information | |
| Committee | EE |
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| Conference Date | 2018/1/29(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Satellite Campus Oita |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Fujio Kurokawa(Nagasaki Univ.) |
| Vice Chair | Masatoshi Nakahara(Sojo Univ.) / Keiichi Hirose(NTT-F) |
| Secretary | Masatoshi Nakahara(Fukuoka Univ.) / Keiichi Hirose |
| Assistant | kazuhiro Kajiwara(NiAS) / Takashi Matsushita(NTT-F) / Hidenori Maruta(Nagasaki Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Energy Engineering in Electronics and Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Input Acrive-Clamp Circuit for Low Power AC/DC Converter |
| Sub Title (in English) | |
| Keyword(1) | AC adapter |
| Keyword(2) | AC/DC converter |
| Keyword(3) | Active clamp |
| Keyword(4) | ZVS |
| 1st Author's Name | Shohtaroh Sohma |
| 1st Author's Affiliation | RICOH Electronic Devices Co., Ltd(RICOH Electronic Devices Co., Ltd) |
| 2nd Author's Name | Yuji Takeyama |
| 2nd Author's Affiliation | RICOH Electronic Devices Co., Ltd(RICOH Electronic Devices Co., Ltd) |
| 3rd Author's Name | Nishijima Kimihiro |
| 3rd Author's Affiliation | Oita University(Oita Univ.) |
| 4th Author's Name | Shoya Takashita |
| 4th Author's Affiliation | Oita University(Oita Univ.) |
| 5th Author's Name | Terukazu Sato |
| 5th Author's Affiliation | Oita University(Oita Univ.) |
| Date | 2018-01-30 |
| Paper # | EE2017-74 |
| Volume (vol) | vol.117 |
| Number (no) | EE-424 |
| Page | pp.pp.183-188(EE), |
| #Pages | 6 |
| Date of Issue | 2018-01-22 (EE) |