| Presentation | 2020-01-16 Current resonant soft switching converter using Cockcroft-Walton circuit Eita Morii, Masahito Shoyama, Otuka Ryota, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The power circuit of the X-ray irradiation device uses a high step-up ratio insulated DC-DC converter using a step-up transformer and Cockcroft-Walton (CW) circuit. In order to reduce the size and weight of this circuit, this research is working on higher switching frequency using soft switching. The resonant element has a series capacitor on the primary side of the transformer and is similar to a typical LLC current resonant converter, but this circuit has a large transformer turns ratio and stray capacitance cannot be ignored. In this paper, we consider the effect of the above-mentioned stray capacitance in a power supply circuit incorporating a CW circuit, and discuss the optimization of the circuit parameters of the CW circuit. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cockcroft-Walton circuit / Soft switching / PFM control / Frequency characteristic / LLC current resonant converter |
| Paper # | EE2019-71 |
| Date of Issue | 2020-01-08 (EE) |
| Conference Information | |
| Committee | EE |
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| Conference Date | 2020/1/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | HOUZAN HALL |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tadatoshi Babasaki(NTT Facilities) |
| Vice Chair | Keiichi Hirose(NTT Facilities) / Tadashi Suetsugu(Fukuoka Univ.) |
| Secretary | Keiichi Hirose(Sojo Univ.) / Tadashi Suetsugu(Nagasaki Inst. of Applied Science) |
| Assistant | Takashi Matsushita(NTT-F) / Tetsuya Oshikata(ShinDengen) / Yuu Yonezawa(FUJITSU Advanced Technologies) |
| 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) | Current resonant soft switching converter using Cockcroft-Walton circuit |
| Sub Title (in English) | |
| Keyword(1) | Cockcroft-Walton circuit |
| Keyword(2) | Soft switching |
| Keyword(3) | PFM control |
| Keyword(4) | Frequency characteristic |
| Keyword(5) | LLC current resonant converter |
| 1st Author's Name | Eita Morii |
| 1st Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 2nd Author's Name | Masahito Shoyama |
| 2nd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 3rd Author's Name | Otuka Ryota |
| 3rd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| Date | 2020-01-16 |
| Paper # | EE2019-71 |
| Volume (vol) | vol.119 |
| Number (no) | EE-364 |
| Page | pp.pp.129-134(EE), |
| #Pages | 6 |
| Date of Issue | 2020-01-08 (EE) |