2022
Shotaro Takahashi, Keiji Wada, Hideki Ayano, Satoshi Ogasawara, Toshihisa Shimizu, Review of Modeling and Suppression Techniques for Electromagnetic Interference in Power Conversion Systems, IEEJ Journal of Industry Applications, 2022, 11 巻, 1 号, p. 7-19
高橋 翔太郎, 和田 圭二, 巻線とコア間の絶縁体を考慮したトロイダルインダクタに生じる浮遊容量の簡易推定法, 電気学会論文誌D(産業応用部門誌), 2022, 142 巻, 1 号, p. 33-40
2021
高橋 翔太郎, 和田 圭二, ギャップ付きフェライトコアに基づくコモンモードインダクタの周波数特性改善法 , 電子情報通信学会論文誌 B, 2021, No.6, pp.442-452
Shin-Ichiro Hayashi, Keiji Wada, Accelerated aging for gate oxide of SiC MOSFETs under continuous switching conditions by applying advanced HTGB test, Microelectronics Reliability, 2021,vol126, 114213
Ryo Shirai, Keiji Wada, Toshihisa Shimizu, Failure Protection Method for CAN Communication Against EMI Noise Generated by Switched-Mode Power Supplies, IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021, vol. 9,Issue: 5, 6152 - 6160
K. Matsubara, K. Wada and Y. Suzuki, "Control of Alternating Magnetic Field Distribution Using Twin Coils and Dual-Voltage Source Inverters to Realize High-Performance Biological Evaluation," IEEE Transactions on Magnetics, vol. 57, no. 2, pp. 1-5, Feb. 2021
武田 友美佳, 清水 敏久, 電力変換回路向け高誘電率系セラミックコンデンサの損失評価, 電気学会論文誌D(産業応用部門誌), 2021, 141 巻, 1 号, p. 78-85
山田 隆二, 藤田 悟, 和田 圭二, 3レベル回路を適用した200V/400V入力共用スイッチング電源, 電気学会論文誌D(産業応用部門誌), 2021, 141 巻, 1 号, p. 46-55
2020
Turmandakh Bat-Orgil, Bayasgalan Dugarjav, Toshihisa Shimizu, Active Power-Decoupling Circuit to Reduce Ripple Currents of Recycling Batteries used with Single-Phase Voltage Source Inverters, IEEJ Journal of Industry Applications, Article ID L20001041, 2020
Y. Kuwabara, K. Wada, J. -M. Guichon, J. -L. Schanen and J. Roudet, "Design of an Integrated Air Coil for Current Sensing," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 4, pp. 4122-4129, Dec. 2020
Shin-Ichiro Hayashi and Keiji Wada, "Accelerated aging test for gate-oxide degradation in SiC MOSFETs for condition monitoring", Microelectronics Reliability, Volume 114, 2020
Taro Takamori, Keiji Wada, Wataru Saito, and Shin-ichi Nishizawa, "Gate drive circuit for current balancing of parallel-connected SiC-JFETs under avalanche mode", Microelectronics Reliability, Volume 114, 2020.
Turmandakh Bat-Orgil, Bayasgalan Dugarjav, Toshihisa Shimizu, Battery Module Equalizer based on State of Charge Observation derived from Overall Voltage Variation, IEEJ Journal of Industry Applications, 2020, Volume 9, Issue 5, Pages 584-596, Released September 01, 2020.
Bat-Orgil Turmandakh, Dugarjav Bayasgalan, and Toshihisa Shimizu "Cell equalizer for recycling batteries from hybrid electric vehicles." Journal of Power Electronics 20, pp. 811–822 (2020).
Van-Long Pham and Keiji Wada, "Applications of Triple Active Bridge Converter for Future Grid and Integrated Energy Systems", Energies 2020, 13, 1577.
2019
M. Kadota, H. Shoji, H. Hirose, A. Hatakeyama and K. Wada, "A Turn-off Delay Controlled Bleeder Circuit for Single-Stage TRIAC Dimmable LED Driver With Small-Scale Implementation and Low Output Current Ripple," in IEEE Transactions on Power Electronics, vol. 34, no. 10, pp. 10069-10081, Oct. 2019.
Y. S. Cheng, T. Mannen, K. Wada, K. Miyazaki, M. Takamiya and T. Sakurai, "Optimization Platform to Find a Switching Pattern of Digital Active Gate Drive for Reducing Both Switching Loss and Surge Voltage," in IEEE Transactions on Industry Applications, vol. 55, no. 5, pp. 5023-5031, Sept.-Oct. 2019.
Mitsuhiro Kadota, Hiroyuki Shoji, Atsushi Hatakeyama and Keiji Wada, Output current ripple reduction of LED driver using ceramic‐capacitor‐input circuit and buck‐boost converter, Electrical Engineering in Japan, 10.1002/eej.23251, (2019).
T. Mannen and K. Wada, "Control Method for Overvoltage Suppression across the DC Capacitor in a Grid-Connection Converter Using Leg Short-Circuit of Power MOSFETs during the Initial Charge," in IEEE Transactions on Industry Applications.
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1987
T.Shimizu, M.Shioya “Electric Power Transmission Characteristics of High-Frequency Inverter with a Load Connected Through a Distributed Constant Line”, Electrical Engineering in Japan, Vol.107, No.3,pp.86-94, 1987.