Eiji Hiraki

26 papers C 16Journal 3Unranked 7
YearRankTypeTitle / Venue / Authors
2025 J jnl
Load Observing System Based on Wave Reflection for Soft-Switching Control of MHz-Frequency Resonant Inverter Against Load Fluctuations.
IEEE Access
Aoi Oyane, Kazuhiro Umetani, Eiji Hiraki
2024 C conf
Actual Circuit Verification of LC Series Resonant Converter with Power Factor Control for Effective Power in Load regulation.
IECON
Akito Nakagaki, Eiji Hiraki, Kazuhiro Umetani, Masataka Ishihara, Yuto Yoshimura
2024 J jnl
Feasibility of Active Reactance Compensator for Autonomously Maximizing Repeater Coil Current of Wireless Power Transfer System Against Variations in Resonant Frequency and Magnetic Coupling Intensity.
IEEE Access
Masataka Ishihara, Kazuhiro Umetani, Akihiro Konishi, Eiji Hiraki
2023 — conf
Artificial-Voice-Based Conversational Lecture Video Clips for Flipped Classroom.
ISIE
Kazuhiro Umetani, Yoshitaka Toyota, Masataka Ishihara, Eiji Hiraki
2022 — conf
High-Efficiency Solenoid Coil Structure for Induction Heating of Cylindrical Heating Object.
ISIE
Daiki Miyake, Kazuhiro Umetani, Shota Kawahara, Masataka Ishihara, Eiji Hiraki
2021 — conf
Autonomous Resonant Frequency Tuning Controller for Repeater Resonator in Resonant Inductive Coupling Wireless Power Transfer System.
ISIE
Akihiro Konishi, Kazuhiro Umetani, Masataka Ishihara, Eiji Hiraki
2021 — conf
Feasibility of Parasitic Drain Inductance Design for Minimizing Switching Loss in Bridge Circuits Using GaN-FETs.
ISIE
Koki Abe, Masataka Ishihara, Yusuke Hatakenaka, Kazuhiro Umetani, Eiji Hiraki
2021 C conf
Parasitic Inductance Design for Preventing Oscillatory False Triggering of Parallel-Connected GaN-FETs.
IECON
Yusuke Hatakenaka, Kazuhiro Umetani, Masataka Ishihara, Eiji Hiraki, Hiroshi Tadano
2021 C conf
Tiny Approaches to the Interactive Online Lectures Under the COVID-19 Pandemic.
IECON
Eiji Hiraki, Masataka Ishihara, Kazuhiro Umetani
2020 C conf
Competition-Based Learning of Power Converter Design Emulating Product Development Activity.
IECON
Kazuhiro Umetani, Eiji Hiraki
2020 — conf
Secondary-Side Center-Tapped Transformer Structure with One-Turn Secondary Coils Integrating Rectifier for Reducing Copper Loss of Forward Converter.
ISIE
Tomohide Shirakawa, Kazuhiro Umetani, Eiji Hiraki, Wilmar Martinez
2019 — conf
Core Loss Modeling Based on Equivalent Circuit for Switched Reluctance Motors.
ICIT
Takayuki Kusumi, Kosuke Kobayashi, Takuto Hara, Kazuhiro Umetani, Eiji Hiraki
2018 C conf
Improved Thin Heating Coil Structure of Copper Foil Feasible for Induction Cookers.
IECON
Kazuhiro Umetani, Tomohiro Mishima, Eiji Hiraki, Takayuki Hirokawa, Makoto Imai, Hideki Sadakata
2018 C conf
Soft-Switching Control Circuit Based on Traveling and Reflected Waves for High-Frequency Resonant Inverter Applicable to Capacitive Load Impedance.
IECON
Aoi Oyane, Koji Itakura, Kazuhiro Umetani, Eiji Hiraki, Tatsuya Ikenari, Shingo Kawano
2018 — conf
Theoretical Derivation of Phase Current Profile for Switched Reluctance Motors to Suppress Radial Force Ripple and Torque Ripple.
ISIE
Takayuki Kusumi, Takuto Hara, Kazuhiro Umetani, Eiji Hiraki
2017 C conf
Compact three-phase AC inductor network for PFC converter using magnetic coupled technique.
IECON
Takuya Ozaki, Hiroki Nakaido, Kazuhiro Umetani, Eiji Hiraki, Tatsuya Ikenari, Shingo Kawano
2017 C conf
Soft-switching technique applicable to capacitive load for resonant inverter of plasma generator.
IECON
Koji Itakura, Hiroaki Kakemizu, Hiroki Nakaido, Kazuhiro Umetani, Eiji Hiraki, Tatsuya Ikenari, Shingo Kawano
2017 J jnl
Straightforward Measurement Method of Common Source Inductance for Fast Switching Semiconductor Devices Mounted on Board.
IEEE Trans. Ind. Electron.
Kazuhiro Umetani, Kyota Aikawa, Eiji Hiraki
2016 C conf
Copper loss analysis based on extremum co-energy principle for high frequency forward transformers with parallel-connected windings.
IECON
Tomohide Shirakawa, Genki Yamasaki, Kazuhiro Umetani, Eiji Hiraki
2016 C conf
Simple control technique to eliminate source current ripple and torque ripple of switched reluctance motors for electric vehicle propulsion.
IECON
Takayuki Kusumi, Takuto Hara, Kazuhiro Umetani, Eiji Hiraki
2013 C conf
A study on GaN inverter based MHz frequency induction heating for tiny metals.
IECON
Naoki Yamamoto, Eiji Hiraki, Toshihiko Tanaka, Yukiharu Yamada, Tatsuya Nagao, Yasuhiro Miyake, Yujiro Noda
2013 C conf
Dual-frequency multiple-output resonant soft-switching inverter for induction heating cooking appliances.
IECON
Takayuki Hirokawa, Eiji Hiraki, Toshihiko Tanaka, Makoto Imai, Kenji Yasui, Shinichiro Sumiyoshi
2012 C conf
Performance analysis for high-frequency link AC-AC contact-less power supply system in parking tower.
IECON
Shingo Kawano, Eiji Hiraki, Toshihiko Tanaka, Masayuki Okamoto
2012 C conf
The practical evaluations of time-sharing high-frequency resonant soft-switching inverter for all metal IH cooking appliances.
IECON
Takayuki Hirokawa, Eiji Hiraki, Toshihiko Tanaka, Masayuki Okamoto, Mutsuo Nakaoka
2008 C conf
A New Soft-Switching PWM High Frequency Half-Bridge Inverter Linked DC-DC Converter with Diode-Clamped Active Edge Resonant Snubbers.
IAS
Hisayuki Sugimura, Tetsuya Etoh, Toshimitsu Doi, Keiki Morimoto, Bishwajit Saha, Sang-Pil Mun, Eiji Hiraki, Mutsuo Nakaoka
2008 C conf
New Built-In Induction Heating Cooker Using High-Frequency ZVS-PWM Converter with Single Stage Circuit Topology.
IAS
Hisayuki Sugimura, Bishwajit Saha, Shinichiro Sumiyoshi, Hideki Omori, Sang-Pil Mun, Soon-Kurl Kwon, Eiji Hiraki, Mutsuo Nakaoka