WADA Keiji

J-GLOBAL         Last updated: Nov 4, 2019 at 20:53
WADA Keiji
Tokyo Metropolitan University
Graduate School of Science and Engineering, Department of Electrical and Electronic Engineering
Job title
Associate Professor
Doctor of Engineering(Okayama University)
Research funding number

Research Interests


Research Areas


Academic & Professional Experience

Tokyo Institute of Technology 2003 - Tokyo Metorpolitan University 2000 - 2003

Awards & Honors

Oct 2019
Third Prize Paper Award, IEEE Industry Applications Society, Industry Power Converter Comittee
Aug 2018
Excellent Paper Award, Asia-Pacific Forum on Renewable Energy
Aug 2017
Senior Member, IEEE

Published Papers

Pre-charge Method Using a Bi-directional Isolated DC-DC Converter
Seiji Iyasu, Yuji Hayashi, Yuichi Handa, Kimikazu Nakamura, Keiji Wada
IEEJ Transactions on Industry Applications   139(10) 863-872   Oct 2019   [Refereed]
Optimization Platform to Find a Switching Pattern of Digital Active Gate Drive for Reducing Both Switching Loss and Surge Voltage
Yu Shan Cheng, Tomoyuki Mannen, Keiji Wada, Koutarou Miyazaki, Makoto Takamiya, Takayasu Sakurai
IEEE Transactions on Industry Applications   55    Oct 2019   [Refereed]
A Turn-OFF Delay Controlled Bleeder Circuit for Single-Stage TRIAC Dimmable LED Driver With Small-Scale Implementation and Low Output Current Ripple
Mitsuhiro Kadota, Hiroyuki Shoji, Hiroyuki Hirose, Atsushi Hatakeyama, Keiji Wada
IEEE TRANSACTIONS ON POWER ELECTRONICS   34(10) 10069-10081   Oct 2019   [Refereed]
Degradation characteristics of SiC power devices for DC circuit breaker by repetitive unclamped inductive switching test
Mitsuhiko Sagara, Keiji Wada, Shin-ichi Nishizawa
Microelectronics Reliability      Sep 2019   [Refereed]
Output Current Ripple Reduction of LED Driver Using Ceramic-Capacitor-Input Circuit and Buck-Boost Converter
Kadota Mitsuhiro, Hiroyuki Shoji, Atsushi Hatakeyama, Keiji Wad
IEEEJ Transactions on Industry Applications   139(9) 806-813   Sep 2019   [Refereed]
Inverter Circuit with a Ceramic Capacitor Embedded in a Bus bar
Keiji Wada, Takashi Hirao
IEEEJ Transactions on Industry Applications   139(10) 765-766   Aug 2019   [Refereed]
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
Tomoyuki Mannen, Keiji Wada
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS   55(4) 4012-4019   Jul 2019   [Refereed]
A Bidirectional Current Sensor based on CT with Diode Rectifier and MOSFET for Bidirectional Current-fed DC-DC Converter
Seiji Iyasu, Yuji Hayashi, Yuichi Handa, Kimikazu Nakamura, Keiji Wada
IEEJ Journal of Industry Applications   8(3) 437-443   May 2019   [Refereed]
Voltage Balancing Control based on Gate Signal Delay in Series Connection of SiC-MOSFET
Katsuya Shingu, Keiji Wada
IEEJ Transactions on Industry Applications   138(11) 864-870   Nov 2018   [Refereed]
Simulation Study of Power Management for a Highly Reliable Distribution System using a Triple Active Bridge Converter in a DC Microgrid
Yue Yu, Keiji Wada
Energies   11(11) 3178-3189   Nov 2018   [Refereed]
K. Nishimoto, Y. Kado, K. Wada
K. Nishimoto, Y. Kado, K. Wada
IEEJ Journal of Industry Applications   7(5) 410-415   Sep 2018   [Refereed]
Circuit Implementation of Power Converter for High-Speed Switching Operations
Keiji Wada
Chinese Journal of Electrical Engineering   4(3) 47-52   Sep 2018   [Invited]
Active Gate Control in Half-Bridge Inverter Using Programmable Gate Driver ICs to Improve both Surge Voltage and Converter Efficiency
Hidemine Obara, Keiji Wada, Koutarou Miyazaki, Makoto Takamiya, Takayasu Sakurai
IEEE Transactions on Industry Applications   54(5)    Sep 2018   [Refereed]
Real-time detection of stimulus response in cultured neurons by high-intensity intermediatefrequency magnetic field exposure
Atsushi Saito, Tatsuya Terai,Kei Makino,Masayuki Takahashi,Sachiko Yoshie,Masateru Ikehata, Yasuhiko Jimbo,Keiji Wada, Yukihisa Suzuki and Satoshi Nakasono
Integrative Biology   10(8) 442-449   Aug 2018   [Refereed]
Capacitor Current Imbalance and Its Suppression Method Between Phase Legs for Three-phase Inverter
Takashi Hirao, Keiji Wada, Toshihisa Shimizu
IEEJ Transactions on Industry Applications   138(6) 491-498   Jun 2018   [Refereed]
Yue Yu, Keisuke Masumoto, Keiji Wada, Yuichi Kado
IEEJ Journal of Industry Applications   7(3) 202-209   May 2018   [Refereed]
Yoshikazu Kuwabara, Keiji Wada
IEEJ Transactions on Industry Applications   138(5) 425-432   May 2018   [Refereed]
Katsuya Shingu, Keiji Wada
IEEJ Transactions on Industry Applications   138(5) 417-424   May 2018   [Refereed]
Yoshikazu Kuwabara , Keiji Wada, Jean-Michel Guichon, Jean-Luc Schanen, and James Roudet
IEEE Transactions on Industry Applications   54(3) 2579-2587   May 2018   [Refereed]
Kazuki Matsubara, Keiji Wada, Yukihisa Suzuki
IEEJ Transactions on Industry Applications   138(4) 360-367   Apr 2018   [Refereed]

Research Grants & Projects

A study of EMI for Power Electronics
Grant-in-Aid for Scientific Research
Project Year: 2006