Presentation 2019-05-16
Current Resonant Soft Switching Converter Using Cockcroft-Walton Circuit
Eita Morii, Yousuke Tanebayasi, Masahito Shouyama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A high step-up ratio isolated DC-DC converter using a step-up transformer and a Cockcroft-Walton (CW) circuit is used for a power circuit of an X-ray irradiator such as a CT scan. Therefore, miniaturization and weight reduction are required, and for that purpose, miniaturization of passive elements by high frequency of switching frequency is effective, but high frequency has another problem of increase of switching loss, so high frequency In order to do this, it is necessary to realize soft switching. In this research, a current resonance type converter that realizes soft switching by using parasitic elements of a step-up transformer and a CW circuit in PFM control has been proposed. First, the relationship between the resonance parameter and the output voltage characteristics is considered based on the simulation results, and then, based on the results of actual machine verification, the w Check soft switching in the drier.
Keyword(in Japanese) (See Japanese page)
Keyword(in English)
Paper # EE2019-5
Date of Issue 2019-05-09 (EE)

Conference Information
Committee EE / IEE-HCA
Conference Date 2019/5/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) Switching power supply, New industrial and home appliance for power, others
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 Lab.)

Paper Information
Registration To Technical Committee on Energy Engineering in Electronics and Communications / Technical Meeting on Home and Consumer Appliances
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)
Keyword(2)
Keyword(3)
Keyword(4)
1st Author's Name Eita Morii
1st Author's Affiliation Kyushu University(Kyushu Univ.)
2nd Author's Name Yousuke Tanebayasi
2nd Author's Affiliation *(*)
3rd Author's Name Masahito Shouyama
3rd Author's Affiliation Kyushu University(Kyushu Univ.)
Date 2019-05-16
Paper # EE2019-5
Volume (vol) vol.119
Number (no) EE-32
Page pp.pp.23-28(EE),
#Pages 6
Date of Issue 2019-05-09 (EE)