今岡 淳 (イマオカ ジュン)

Power Module with Low Common-Mode Noise and High Reliability
Sihoon Choi,Jiyoon Choi,Thiyu Warnakulasooriya,Jong-Won Shin,Jun Imaoka,Masayoshi Yamamoto
IEEE Access 2024年06月 [査読有り]

Efficient Multiphysics Circuit Simulation for Transformer Optimization Using Hybrid Dowell Artificial Neural Network
Yu-Hsin Wu,Koichi Shigematsu,Yasumichi Omoto,Yoshihiro Ikushima,Jun Imaoka,Masayoshi Yamamoto
IEEJ Journal of Industry Applications 2024年04月 [査読有り]

Analytical Model of Maximum Operating Frequency of Class-D ZVS Inverter with Linearized Parasitic Capacitance and any Duty Ratio
Yi Xiong,Senanayake Thillak,Yu Yonezawa,Jun Imaoka,Masayoshi Yamamoto
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 2024年04月 [査読有り]

Common-Mode Noise Reduction for Bridgeless Flyback PFC Rectifier with Balance Technique
Sihoon Choi,Yikun Yin,Jong-Won Shin,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) 2024年02月 [査読有り]

SiC Power Module Design with a Low-Permittivity Material to Reduce Common-Mode Noise
Sihoon Choi,Jiyoon Choi,Jong-Won Shin,Yonezawa Yu,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) 2024年02月 [査読有り]

Analysis of Eddy Currents and Thermal Modeling of Planar Magnetic Components with Metal Housing
Atsushi Hasenuma,Jun Imaoka,Masayoshi Yamamoto,Tatsuya Miyazaki,Yuta Okawauchi,Akihiro Kawano
Proc. of 2024 IEEE IEEE Applied Power Electronics Conference and Exposition (APEC) 2024年02月 [査読有り]

Design of Coupled Inductor Using Powder Core with Concentrated Air Gap in Multiphase Operation
Sihoon Choi,Jun Imaoka,Masayoshi Yamamoto
IEEE Transaction on Industry Applications 60(2) 3449-3458 2023年12月 [査読有り]

Packaging of SiC Power Module with a Low-Permittivity Material to Reduce Capacitive Coupling
Sihoon Choi,Jiyoon Choi,Jong-Won Shin,Jun Imoka,Masayoshi Yamamoto
Proc. of 2023 IEEE CPMT Symposium Japan (ICSJ) 73-76 2023年12月 [査読有り]

A Review of the Packaging Scheme of a Traction Inverter: Layout, Capacitor, Current Sensing and Power Module
Thiyu Warnakulasooriya,Sihoon Choi,Arihiro Kamiya,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2023 IEEE CPMT Symposium Japan (ICSJ) 77-80 2023年12月 [査読有り]

Prototyping and Evaluation of SiC Half Bridge Circuit using Power Device Embedded Module Process Towards Future Three Dimensional Packaging
Kazuhito Nakamura,Koichi Shigematsu,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2023 IEEE CPMT Symposium Japan (ICSJ) 196-199 2023年11月 [査読有り]

Fixed Frequency Operation in Critical Conduction Mode with Voltage-Controlled Variable Inductor
Sihoon Choi,Jong-Won Shin,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2023 IEEE Energy Conversion Congress and Exposition (ECCE) 6444-6449 2023年10月 [査読有り]

Conducted EMI Simulation for a DC-DC Converter : a DC Brush Motor System Considering Showering Arc at Mechanical Contacts
Kodai Katagiri,Toru Ogawa,Masayoshi Yamamoto,Jun Imaoka,Mamoru Sasaki
IEEJ Journal of Industry Applications 12(5) 933-944 2023年09月 [査読有り]

Balanced Two-phase Interleaved Boost Converter with Integrated Magnetics for Common-Mode Noise Reduction
Tomotaka Nagai,Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto,Akira Nakano
IEEJ Journal of Industry Applications 12(4) 664-675 2023年07月 [査読有り]

Common mode conductive noise cancellation formultiphase converter using auxiliary winding
Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto,Akira Nakano,Koji Fuse
Electrical Engineering in Japan 143(4) 263-272 2023年06月 [査読有り] [依頼有り]

Voltage-Controlled Variable Inductor for Fixed-Frequency Critical Conduction Mode Operation
Sihoon Choi,Jong-Won Shin,Jun Imaoka,Masayoshi Yamamoto
IEEE Transactions on Industrial Electronics 70(6) 5707-5716 2023年06月 [査読有り]

High Reliable Transformer-less Deadtime Less Inverter for Grid-connected Applications
Silumin Senanayake,Thilak Senanayake,Jun lmaoka,Masayoshi Yamamoto
Proc. of 2023 11th International Conference on Power Electronics -ECCE Asia 1788-1794 2023年05月 [査読有り]

Experimental Verification of Maximum Operating Frequency for a SiC-MOSFET in Class-D ZVS Inverter
Yi Xiong,Senanayake Thilak,Yu Yonezawa,Jun lmaoka,Masayoshi Yamamoto
Proc. of 2023 11th International Conference on Power Electronics -ECCE Asia 1780-1787 2023年05月 [査読有り]

Modeling of Lithium-Ion Batteries with Constant Phase Element and Butler-Volmer’s Equation
T. Yamahigashi,J. Shimura,K. Shibuya,Y. -H. Wu,K. Shigematsu,T. Hosotani,J. Kuromi,J. lmaoka,M. Yamamoto
Proc. of 2023 11th International Conference on Power Electronics -ECCE Asia 697-702 2023年05月 [査読有り]

Accurate Leakage Inductance Modeling Using an Artificial Neural Network Based on the Dowell Model
Yu-Hsin Wu,Koichi Shigematsu,Yasumichi Omoto,Jun Imaoka,Masayoshi Yamamoto
IEEJ Journal of Industry Applications 12(3) 334-344 2023年05月 [査読有り]

Investigation on Relationship between Common Mode Noise and Distribution of Parasitic Capacitance
Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto
IEEJ Journal of Industry Applications 12(3) 484-492 2023年05月 [査読有り]

Derivation of Resonant Period for Soft Switching Considering Nonlinear Characteristics of Output Capacitance in Switching Device
Sihoon Choi,Ayato Suzuki,Jun Imaoka,Masayoshi Yamamoto
IEEJ Journal of Industry Applications 12(3) 289-294 2023年05月 [査読有り]

Gate Drive Circuit Suitable for a GaN Gate Injection Transistor
Fumiya Hattori,Yuta Yanagisawa,Jun Imaoka,Masayoshi Yamamoto
IEEE Access 11 43169-43182 2023年04月 [査読有り]

非制御 LLC共振形コンバータを用いたモジュラーDC-DCコンバータの電流分担制御
朴 青云,今岡 淳,山本真義
電気学会論文誌D 143(4) 337-348 2023年04月 [査読有り]

補助巻き線による結合インダクタ方式多相コンバータ用コモンモードノイズキャンセル
佐々木 守,今岡 淳,山本 真義,仲野 陽,布施 浩司
電気学会論文誌D 143(4) 263-272 2023年04月 [査読有り]

An Implementation of Dowell Model with Neural Network to Foil Winding Transformer
Yu Hsin Wu,Koichi Shigematsu,Yasumichi Omoto,Yoshihiro Ikushima,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2023 the Applied Power Electronics Conference (APEC) 2023年03月 [査読有り]

パワー半導体基板内蔵技術による SiC ハーフブリッジ回路の設計・試作・評価
中村 和人,今岡 淳,山本 真義,金山 天,韓 榮建,加藤 義尚,末次 正,服部 篤典,野北 寛太,稲田 太朗,浅井 寛美,小泉 雄大
エレクトロニクス実装学術講演大会講演論文集 37(0) 2023年03月

Analytical Model of Class-D Inverter for High-frequency Operation
Yi Xiong,Senanayake Thilak,Daisuke Arai,Yu Yonezawa,Jun Imaoka,Masayoshi Yamamoto
Proc. of IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society 1-6 2022年10月 [査読有り]

Feasible Evaluations of Low Profile Magnetic Structure Based on Meander Winding and Split-Magnetic Cores with High-Cooling Capability Used in Power Converters
Jun Imaoka,Kazuya Matsuta,Hiroki Ochiai,Koichi Shigematsu,Mostafa Noah,Masayoshi Yamamoto
Proc. of 2022 IEEE Energy Conversion Congress and Exposition (ECCE) (ECCE) 1-7 2022年10月 [査読有り]

Modeling and Design Method of Coupled Inductor Using Powder Core with Concentrated Air Gap
Sihoon Choi,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2022 IEEE Energy Conversion Congress and Exposition (ECCE) 1-5 2022年10月 [査読有り]

直流ブラシモータ機械接点の定常アークを考慮したスパイクサージと伝導ノイズの解析
片桐 高大,小川 徹,山本 真義,今岡 淳,佐々木 守
電気学会論文誌Ｄ（産業応用部門誌） 142(7) 490-497 2022年07月

This study provides a circuit analysis model of a DC brush motor to predict spike surges at mecha... [査読有り]

Finite Element Method based Thermal Magnetic Core Characteristics Modeling and Thermal Simulation
Hiroki Ochiai,Koichi Shigematsu,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2022 IEEE International Symposium on Industrial Electronics (ISIE) 320-324 2022年06月 [査読有り] [依頼有り]

Derivation of Resonant Period for Soft Switching by Linearizing Output Capacitance of Switching Device
Sihoon Choi,Ayato Suzuki,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2022 IEEE International Power Electronics Conference (IPEC 2022) 2236-2241 2022年05月 [査読有り]

Construction of an Electric Aircraft System Model with Power Device Losses
Takamitsu Yamahigashi,Kensuke Shibuya,Koichi Shigematsu,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2022 IEEE International Power Electronics Conference (IPEC 2022) 2141-2146 2022年05月 [査読有り]

An Investigation and Proposal for Accurate Leakage Inductance Modeling Based on Dowell Model
Yu-Hsin Wu,Koichi Shigematsu,Yasumichi Omoto,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2022 IEEE International Power Electronics Conference (IPEC 2022) 1964-1969 2022年05月 [査読有り] [依頼有り]

An Investigation on the Relationship between CM Noise and Distribution of Parasitic Capacitance
Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2022 IEEE International Power Electronics Conference (IPEC 2022) 753-758 2022年05月 [査読有り]

Common Mode Noise Reduction of Two-Phase Interleaved Boost Converters with Integrated Magnetics Utilizing Balanced Technique
Tomotaka Nagai,Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto,Akira Nakano
Proc. of 2022 IEEE International Power Electronics Conference (IPEC 2022) 746-752 2022年05月 [査読有り]

カーボンニュートラルへ向けたパワーエレクトロニクス技術動向と磁気部品の応用技術 ー高電力密度/高効率/モデリングー
今岡 淳
日本AEM学会誌 30(1) 15-22 2022年04月 [依頼有り]

直流ブラシモータに発生するスパイクサージの分析と等価回路を用いた解析モデルの提案
片桐 高大,小川 徹,山本 真義,今岡 淳,佐々木 守,野田 和寛
電気学会論文誌D 142(3) 167-176 2022年03月 [査読有り]

Reversed Configuration Boost Converter to Reduce Effective CM Capacitance
Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2021 IEEE International Future Energy Electronics Conference 1-6 2021年11月 [査読有り]

EMI Analysis and Suppression Method Using Ferrite Beads Applied to LLC Converter
Rino Okochi,Hiroyuki Takatsuji,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2021 IEEE International Future Energy Electronics Conference 1-6 2021年11月 [査読有り]

A Novel Measurement Method for DC Superimposition Characteristics of Three-Phase Coupled Inductors with Powder Cores
Yamato Mishima,Tatsuya Aoki,Kazuya Matsuta,Jun Imaoka,Masayoshi Yamamoto,Kosuke Yoshimoto
Proc. of 13th IEEE Energy Conversion Congress and Exposition (ECCE) 5334-5341 2021年10月 [査読有り]

Analysis on Parasitic Capacitance to Prevent False Turn-On in GaN HEMT
Toshihiro Iwaki,Takashi Sawada,Jun Imaoka,Masayoshi Yamamoto
Proc. of 13th IEEE Energy Conversion Congress and Exposition (ECCE) 5616-5621 2021年10月 [査読有り]

パワーコンバータ用インダクタの要素技術・応用技術
今岡 淳
電気学会誌 141(10) 624-626 2021年10月

1．はじめに

パワーコンバータに使用されるパワー半導体デバイスには長年Si系のものが用いられてきたが，最近は化合物半導体デバイス（SiC, GaN, Ga₂O<... [依頼有り]

A Magnetic Design Method for Powder Core Inductor with Concentrated Airgap Considering DC Superposition Characteristics Used for High Current Applications
Jun Imaoka,Wu Yu-Hsin,Koichi Shigematsu,Mostafa Noah,Masayoshi Yamamoto,Wilmar Martinez
Proc. of 23rd European Conference on Power Electronics and Applications (EPE) 1-10 2021年09月 [査読有り]

Effects of High-frequency Operation on Magnetic Components in Power Converters
Jun Imaoka,Wu Yu-Hsin,Koichi Shigematsu,Tatsuya Aoki,Mostafa Noah,Masayoshi Yamamoto
Proc. of the Energy Conversion Congress and Exposition – Asia, 2021 (ECCE Asia 2021) 978-984 2021年05月 [査読有り]

産業機械の電動化に向けたマルチ入力モジュラーDC/DCコンバータの協調制御
朴 青云,垣坂 資,今岡 淳,山本 真義,甲野藤 正明
電気学会論文誌D 141(4) 304-312 2021年04月 [査読有り]

13.56MHz High Power Half-Bridge GaN-HEMT Resonant Inverter Achieving 99% Power Efficiency
Aoi Oyane,Thilak Senanayake,Fumiya Hattori,Jun Imaoka,Masayoshi Yamamoto,Mitsuru Masuda
Proc. of 2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) 1-4 2020年12月 [査読有り]

A simple gate driver design for GaN-based switching devices with improved surge voltage and switching loss at 1-MHz operation
Shota Jodo,Toshihiro Iwaki,Kosuke Uchiyama,Md. Islam,Kensuke Kataoka,Yuki Hayasaka,Jun Imaoka,Masayoshi Yamamoto,Kiichi Niitsu
Japanese Journal of Applied Physics 60(SA) SAAD02-1-SAAD02-9-SAAD02 2020年10月 [査読有り]

Output Power Pulsation Suppressed with an Activity Smoothen Buck-Boost Converter to Achieve Electrolytic Capacitor-less AC/DC Converter
Tengfei Ou,Seiji Namiki,Mamoru Tsuruya,Mostafa Noah,Koichi Morita,Daisaku Mukaiyama,Jun Imaoka,Masayoshi Yamamoto
Proc. of 2020 AEIT International Annual Conference (AEIT) 1-6 2020年09月 [査読有り]

Three-Phase Split-Source Inverter-Fed PV Systems: Analysis and Mitigation of Common-Mode Voltage
M. S. Hassan,Ahmed Abdelhakim,Masahito Shoyama,Jun Imaoka,Gamal M. Dousoky
IEEE Transactions on Power Electronics 35(9) 2020年09月 [査読有り]

Magnetic Design Method for Multi-Material Inductor to Flatten Efficiency Curve of Power Converters within Wide Load Ranges
Yuki Ishikura,Jun Imaoka,Mostafa Noah,Tatsuya Aoki,Koichiro Ito,Masayoshi Yamamoto
IEEE Transactions on Magnetics 56(10) 2020年08月 [査読有り]

Temperature Dependency Modeling, Simulation and Experimental Validations of DC Superimposition Characteristics for Gapped-Ferrite Inductor Including Saturation Region
Jun Imaoka,Tatsuya Aoki,Koichi Shigematsu,Masayoshi Yamamoto
Proc. of 29th IEEE International Symposium on Industrial Electronics (ISIE2020) 1430-1437 2020年06月 [査読有り]

Comparison of switching performance between GaN and SiC MOSFET via 13.56MHz Half-bridge Inverter
Yi Xiong,Aoi Oyane,Tengfei Ou,Senanayake Thilak,Jun Imaoka,Masayoshi Yamamoto
Proc. of 29th IEEE International Symposium on Industrial Electronics (ISIE2020) 636-640 2020年06月 Both silicon-carbide (SiC) and gallium-nitride (GaN) are wide bandgap power transistor which are dev... [査読有り]

Analysis of Common Mode Noise Reduction Mechanism in A Shielded Inductor
Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto,Akira Nakano,Koji Fuse
Proc. of 29th IEEE International Symposium on Industrial Electronics (ISIE2020) 624-629 2020年06月 [査読有り]

Technical Trend of Power Electronics Systems for Automotive Applications
Masayoshi Yamamoto,Tasuku Kakisaka,Jun Imaoka
Japanese Journal of Applied Physics 59(SG) 2020年04月 [査読有り]

Voltage Balancing Control Method Using Variable Capacitors with Simple Turn-on Adjusting Function for Multi-Stage FET Bidirectional Converter
Yuki Ishikura,Tatsuya Hosotani,Jun Imaoka,Mostafa Noah,Masayoshi Yamamoto
Proc. of The 2020 IEEE Applied Power Electronics Conference and Exposition (APEC) 2944-2949 2020年03月 [査読有り]

Effects of Secondary Leakage Inductance on the LLC Resonant Converter
Mostafa Noah,Tomohide Shirakawa,Kazuhiro Umetani,Jun Imaoka,Masayoshi Yamamoto,Eiji Hiraki
IEEE Transactions on Power Electronics 35(1) 2020年01月 [査読有り]

Coupled Inductor Optimization of a High Step-up Interleaved Boost Converter
Wilmar Martinez,Camilo Cortes,Jun Imaoka
IEEJ Journal of Industry Applications 8(6) 2019年11月 [査読有り]

Modeling, Magnetic Design, Simulation Methods, and Experimental Evaluation of Various Powder Cores Used in Power Converters Considering Their DC Superimposition Characteristics
Jun Imaoka,Kenkichiro Okamoto,Masahito Shoyama,Yuki Ishikura,Mostafa Noah,Masayoshi Yamamoto
IEEE Transactions on Power Electronics 34(9) 2019年09月 [査読有り]

A Method to Suppress the Voltage Imbalance Between Series-Connected MOSFETs in DC-DC Converter by Feedback Control
Kakisaka Tasuku,Jun Imaoka,Masayoshi Yamamoto
Proc. of Taiwan and Japan Conference on Circuits and Systems (TJCAS2019) 2019年08月 [査読有り]

Comprehensive Analysis of Coupled Inductors with Powder Cores Used in Interleaved Converter: Measurement, Modeling, Design Methods, and Experimental Evaluation
Tatsuya Aoki,Jun Imaoka,Masayoshi Yamamoto,Kosuke Yoshimoto
in Proc. the 13th IEEE International Conference on Power Electronics and Drive Systems (PEDS 2019) 2019年07月 [査読有り]

Improved Core Loss Calculation Method Considering the non-uniform Distribution of Magnetic Flux Density in Powder Cores
Yuki Ishikura,Jun Imaoka,Mostafa Noah,Masayoshi Yamamoto
IET Power Electronics 12(6) 2019年05月 [査読有り]

Magnetic Design Method for Multi-Material Powder Core Inductor to Improve Efficiency of Bidirectional DC/DC Converter within Wide Load Range
Jun Imaoka,Yuki Ishikura,Koichiro Ito,Tatsuya Aoki,Mostafa Noah,Masayoshi Yamamoto
in Proc. 10th International Conference on Power Electronics ECCE Asia (ICPE2019) 2019年05月 [査読有り]

Study on the Imbalanced Voltage of Series-Connected Active Power Semiconductor Devices in Power Conversion Systems
Hongjing Zhang,Jun Imaoka,Mostafa Noah,Yuki Ishikura,Masayoshi Yamamoto
in Proc. IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA-Asia 2019) 2019年05月 [査読有り]

Cooperative Control of Multi-Input Modular DC/DC Converter for Electric Off-Highway Vehicles
Qingyun Piao,Masaaki Konoto,Tasuku Kakisaka,Jun Imaoka,Masayoshi Yamamoto
in Proc. the 3rd IEEE ICDCM 2019 International Conference on DC Microgrids 2019年05月 [査読有り]

Common Mode Conductive Noise Cancellation for Multiphase Converter Using Auxiliary Winding
Mamoru Sasaki,Jun Imaoka,Masayoshi Yamamoto,Akira Nakano,Koji Fuse
in Proc. the 3rd IEEE ICDCM 2019 International Conference on DC Microgrids 2019年05月 [査読有り]

Bidirectional Converter with Balancing Capacitor using Multi-stage FET Driving Technique
Yiki Ishikura,Jun Imaoka,Mostafa Noah,Masayoshi Yamamoto
in Proc. the 3rd IEEE ICDCM 2019 International Conference on DC Microgrids 2019年05月 [査読有り]

Comparative Evaluation of Electrical and Calorimetric Methods to Estimate Core Loss in Powder Cores
Yuki Ishikura,Jun Imaoka,Mostafa Noah,Masayoshi Yamamoto
IEEJ Journal of Industry Applications 8(3) 2019年05月 [査読有り]

Effects of Secondary Leakage Inductance on the LLC Resonant Converter-Part II: Frequency Control Bandwidth with respect to Load Variation
Mostafa Noah,Tomohide Shirakawa,Kazuhiro Umetani,Jun Imaoka,Masayoshi Yamamoto,Eiji Hiraki
Proc. Annual IEEE Applied Power Electronics Conference & Exposition (APEC 2019) 2019年03月

Effects of Secondary Leakage Inductance on the LLC Resonant Converter-Part I: Transformer Voltage Gain and Efficiency
Mostafa Noah,Tomohide Shirakawa,Kazuhiro Umetani,Jun Imaoka,Masayoshi Yamamoto,Eiji Hiraki
Proc. Annual IEEE Applied Power Electronics Conference & Exposition (APEC 2019) 2019年03月 [査読有り]

EMI Prediction and Reduction of Zero-crossing Noise in Totem-pole Bridgeless PFC Converter
Baihua Zhang,Qiang Lin,Jun Imaoka,Masahito Shoyama,Satoshi Tomioka,Eiji Takegami
Journal of Power Electronics 19(1) 2019年01月 [査読有り]

A Novel Transformer Structure Used in a 1.4 MHz LLC Resonant Converter with GaNFETs
Tengfei Ou,Mostafa Noah,Koichi Morita,Mamoru Tsuruya,Seiji Namiki,Jun Imaoka,Masayoshi Yamamoto
Proc. of IEEE International Power Electronics and Application Conference and Exposition (PEAC) 2018年11月

ターンオフ遅延時間を考慮したピーク電流モード制御 DC-DC コンバータの限界動作周波数
藤原 和也,右手 凌,今岡 淳,庄山 正仁
電子情報通信学会論文誌 J101–B(11) 2018年11月 [査読有り]

Magnetic Design and Experimental Evaluation of a Commercially Available Single Integrated Transformer in Three-Phase LLC Resonant Converter
Mostafa Noah,Shota Kimura,Jun Imaoka,Wilmar Martinez,Shun Endo,Masayoshi Yamamoto,Kazuhiro Umetani
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS 54(6) 6190-6204 2018年11月 Multiphase topologies are preferably employed in power conversion systems to lessen the per-phase ci...

Fundamental Experiment of 3-phase Electric Resonant Coupling Wireless Power Transfer
Fumiya Hattori,Jun Imaoka,Masayoshi Yamamoto,Mitsuru Masuda
Proc. of 7th International Conference on Renewable Energy Research and Applications (ICRERA) 2018年10月 [査読有り]

Current-Mode Digital Control Method for High Frequency DC-DC Converter with Reduced Number of Sampling in One Switching Cycle
Atsushi Mishima,Reo Takiguchi,Jun Imaoka,Masahito Shoyama,Akihiro Yamaguchi,Tomonori Kimura
Proc. of IEEE Energy Conversion Congress & Exposition (ECCE 2018) 2018年09月 [査読有り]

Effect of Inductor Parasitic Resistances on the Voltage-Gain of High Step-Up DC-DC Converters for Electric Vehicle Applications
Wilmar Martinez,Camilo Cortes,Jun Imaoka,Masayoshi Yamamoto
IET Power Electronics 11(10) 2018年08月 [査読有り]

Review of Current Balance Mechanism in Multiphase LLC Resonant Converters
Mostafa Noah,Jun Imaoka,Yuki Ishikura,Kazuhiro Umetani,Masayoshi Yamamoto
IEEE International Symposium on Industrial Electronics 2018-June 1030-1036 2018年08月 © 2018 IEEE. In multi-phase power conversion circuits, achieving an equalized current sharing betwee...

Magnetic Design and Experimental Evaluation of a Commercially available Single Integrated Transformer in Three-phase LLC converter
Mostafa Noah,Shota Kimura,Jun Imaoka,Wilmar Martinez,Shun Endo,Masayoshi Yamamoto,Kazuhiro Umetani
IEEE Transactions on Industry Applications 54(6) 2018年06月 [査読有り]

A Current Sharing Method Utilizing Single Balancing Transformer for a Multiphase LLC Resonant Converter with Integrated Magnetics
Mostafa Noah,Shun Endo,Hiroki Ishibashi,Kimihiro Nanamori,Jun Imaoka,Kazuhiro Umetani,Masayoshi Yamamoto
IEEE Journal of Emerging and Selected Topics in Power Electronics 6(2) 977-992 2018年06月 Integrated magnetics is applied to replace the three-discrete transformers by a single core transfor... [査読有り]

Limit Operating Frequency of Peak Current-Mode Control DC-DC Converter Considering Turn-Off Delay Time
Ryo Ute,Kazuya Fujiwara,Jun Imaoka,Masahito Shoyama
Proc. the 2018 International power Electronics conference-ECCE ASIA- (IPEC-Niigata 2018) 2018年05月 [査読有り]

A Leakage Flux Cancellation Technique for Series- Parallel Combined Resonant Circuits with Asymmetric Rotary Transformers Used for Ultrasonic Spindle Drive
Jun Imaoka,Masahito Shoyama
Proc. the 2018 International power Electronics conference-ECCE ASIA- (IPEC-Niigata 2018) 2018年05月 [査読有り]

A Magnetic Design Method Considering DC-Biased Magnetization for Integrated Magnetic Components Used in Multiphase Boost Converters
Jun Imaoka,Kenkichiro Okamoto,Shota Kimura,Mostafa Noah,Wilmar Martinez,Masayoshi Yamamoto,Masahito Shoyama
IEEE Transactions on Power Electronics 33(4) 3346-3362 2018年04月 High power density and high efficiency in dc/dc converters are required in various applications such...

Lagrangian dynamics model and practical implementation of an integrated transformer in multi-phase LLC resonant converter
Mostafa Noah,Kazuhiro Umetani,Jun Imaoka,Masayoshi Yamamoto
IET Power Electronics 11(2) 339-347 2018年02月 In conventional arrangements of three-phase LLC converters, there are at least three magnetic compon...

Winding Orientation Method to Minimise the Secondary Leakage of a Gapped Transformer Utilised in LLC Resonant Converter
Mostafa Noah,Kazuhiro Umetani,Masayoshi Yamamoto,Jun Imaoka
Electronics Letters 53(3) 2018年02月 [査読有り]

Core Loss Evaluation in Powder Cores: A Comparative Comparison between Electrical and Calorimetric Methods
Ishikura Yuki,Imaoka Jun,Noah Mostafa,Yamamoto Masayoshi
2018 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-NIIGATA 2018 -ECCE ASIA) 2018年

Modeling, Magnetic Design, and Simulation Methods Considering DC Superimposition Characteristic of Powder Cores Used in Power Converters
Imaoka Jun,Okamoto Kenkichiro,Shoyama Masahito,Ishikura Yuki,Noah Mostafa,Yamamoto Masayoshi
2018 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-NIIGATA 2018 -ECCE ASIA) 2018年

Analytical Investigation of Interleaved DC-DC Converter using Closed-Coupled Inductor with Phase Drive Control
Daigoro Ebisumoto,Shota Kimura,Kimihiro Nanamori,Mostafa Noah,Masataka Ishihara,Jun Imaoka,Masayoshi Yamamoto
Proc. International Communications Energy Conference (INTELEC) 2017年10月 [査読有り]

Conducted Noise Prediction for Zero-crossing Issue in Totem-pole Bridgeless PFC Converter
Baihua Zhang,Qiang Lin,Jun Imaoka,Masahito Shoyama,Satoshi Tomioka,Eiji Takegami
Proc. International Communications Energy Conference (INTELEC) 2017年10月 [査読有り]

Magnetic Structure of Close-Coupled Inductors to Improve the Thermal Handling Capability in Interleaved DC-DC Converter
Thai Hoang Chuong,Shota Kimura,Daigoro Ebisumoto,Mostafa Noah,Masataka Ishihara,Masayoshi Yamamoto,Jun Imaoka,Wilmar Martinez
Proc. IEEE Energy Conversion Congress & Expo (ECCE) 2017年10月 [査読有り]

A High-Reliable Magnetic Design Method for Three-Phase Coupled Inductor Used in Interleaved Multi-Phase Boost Converter
Jun Imaoka,Kenkichiro Okamoto,Masahito Shoyama,Mostafa Noah,Shota Kimura,Masayoshi Yamamoto
Proc. IEEE Energy Conversion Congress & Expo (ECCE) 2017年10月 [査読有り]

A Lagrangian Dynamics Model of Integrated Transformer Incorporated in a Multi-phase LLC Resonant Converter
Mostafa Noah,Kazuhiro Umetani,Shun Endo,Hiraki Ishibashi,Jun Imaoka,Masayoshi Yamamoto
Proc. IEEE Energy Conversion Congress & Expo (ECCE) 2017年10月 [査読有り]

Derivation of Transfer Function of LLC Current Resonant Converter Using Numerical Calculation
Masahito Shoyama,Takuma Sagara,Yusuke Yamashita,Jun Imaoka,Yu Yonezawa,Yoshiyasu Nakashima
Proc. IEEE Energy Conversion Congress & Expo (ECCE) 2017年10月 [査読有り]

An Investigation into A Slight-Variation of The Transformer Effective Permeability In LLC Resonant Converter
Mostafa Noah,Shun Endo,Shota Kimura,Masayoshi Yamamoto,Jun Imaoka,Kazuhiro Umetani,Eiji Hiraki
Proc. IEEE 17th Conference on Power Electronics and Applications (EPE'17-ECCE Europe) 2017年09月 [査読有り]

Total Volume Evaluation of High Power Density Non-Isolated DC-DC Converters with Integrated Magnetics for Electric Vehicle
Wilmar Martinez,Camilo Cortes,Masayoshi Yamamoto,Jun Imaoka,Kazuhiro Umetani
IET Power Electronics 10(14) 2017年07月 [査読有り]

Magnetic Design and Experimental Evaluation of Integrated Magnetic Components used in Interleaved Multi-phase DC/DC Converter with Phase Drive Control
Jun Imaoka,Kenkichiro Okamoto,Masahito Shoyama,Daigoro Ebisumoto,Shota Kimura,Mostafa Noah,Masayoshi Yamamoto
Proc. IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017-ECCE Asia) 2017年06月 [査読有り]

A Novel Isolated DC-DC Converter with Integrated Magnetic Components for EV and HEV Applications
Shota Kimura,Thai Hoang Chuong,Daigoro Ebisumoto,Taich Kawakami,Masayoshi Yamamoto,Jun Imaoka
Proc. IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017-ECCE Asia) 2017年06月 [査読有り]

Study on Zero-Crossing Conducted Noise Issue of Totem-Pole Bridgeless PFC Converter
Baihua Zhang,Jun Imaoka,Masahito Shoyama,Satoshi Tomioka,Eiji Takegami
Proc. IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017-ECCE Asia) 2017年06月 [査読有り]

Design of Series-Parallel Combined Resonant Circuit with Rotary Transformer Used for Ultrasonic Spindle Drive
Jun Imaoka,Myoungsik Nam,Masahito Shoyama,Hideaki Fujita
Proc. IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017-ECCE Asia) 2017年06月 [査読有り]

Current Ripple Modeling of an Interleaved High Step-Up Converter with Coupled Inductor
Wilmar Martinez,Camilo A Cortes,Jun Imaoka,Kazuhiro Umetani,Masayoshi Yamamoto
Proc. IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017-ECCE Asia) 2017年06月 [査読有り]