Hiromu Saeki, Kazuhiro Umetani, Tomohide Shirakawa, Masataka Ishihara, Eiji Hiraki. Rectifier-Integrated Printed-Circuit-Board Winding Structure of Secondary-Side Center-Tapped Transformer for Suppressing Parasitic Resonance between Secondary Smoothing Capacitors. 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia). 2023
Ryo Murata, Tomohide Shirakawa, Kazuhiro Umetani, Eiji Hiraki, Hiroto Mizutani, Takaaki Takahara, Osamu Mori. Homogenization of Current Distribution in Parallel Connection of Interleaved Winding Layers of High-Frequency Transformers by Optimizing Distance between Winding Layers. 2020 22nd European Conference on Power Electronics and Applications, EPE 2020 ECCE Europe. 2020
Tomohide Shirakawa, Kazuhiro Umetani, Eiji Hiraki, Wilmar Martinez. Secondary-Side Center-Tapped Transformer Structure with One-Turn Secondary Coils Integrating Rectifier for Reducing Copper Loss of Forward Converter. IEEE International Symposium on Industrial Electronics. 2020. 2020-June. 1459-1465
Optimal Winding Layer Allocation for Minimizing Copper Loss of Secondary-Side Center-Tapped Forward Transformer with Parallel-Connected Secondary Windings
(2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 2019)
依頼講演 超軽量ワイヤレス給電システム : 給電方式の選択と設計のポイント (半導体電力変換研究会・エネルギー技術,半導体電力変換,一般)
(電気学会研究会資料. SPC = The papers of technical meeting on semiconductor power converter, IEE Japan 2018)
Application of extremum co-energy principle for homogenizing current distribution in parallel-connected windings in transformers: Design optimization of winding turn allocation among winding layers
(2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe 2017)