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OBARA Hidemine
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【Published Thesis】 Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion 2021.01
【Published Thesis】 Application of Multi-Level Converter for Fast Current Control in Small-Scale DC Power Network 2019.05
【Published Thesis】 Active Gate Control in Half-Bridge Inverters Using Programmable Gate Driver ICs to Improve both Surge Voltage and Converter Efficiency 2018.09
Chiba University Doctor Course Completed
Docter(Engineering) - Chiba University
Master(Engineering) - Chiba University
Duty Yokohama National UniversityFaculty of Engineering Division of Intelligent Systems Engineering Associate Professor
Concurrently Yokohama National UniversityFaculty of Engineering
Concurrently Yokohama National UniversityFaculty of Engineering Division of Intelligent Systems Engineering Assistant Professor
Chuo University
JSPS Special researcher of the Japan Society for the Promotion of Science
IEEE
電気学会
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Power engineering
Electric Works Specialist (third kind)
Multilevel converter
Project Year：
フライングキャパシタマルチレベルコンバータによる電力変換器の波形改善および高パワー密度化に関する研究
小原 秀嶺
2015.9
No Setting Single Work
Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion
57 ( 1 ) 614 - 627 2021.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
Kawamura Atsuo, Nakazaki Satoshi, Ito Shogo, Nagai Sakahisa, Obara Hidemine
IEEJ JOURNAL OF INDUSTRY APPLICATIONS 9 ( 6 ) 663 - 673 2020.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 電気学会 Joint Work
<p>A DC-AC conversion efficiency of over 99.7% is experimentally measured using a two battery high efficiency energy conversion system (HEECS) inverter. The accuracy of the efficiency measurement is evaluated by two methods: the direct measurement method and the loss breakdown method. After several measurements, calculations and analyses it is concluded that the measurement error based on the loss breakdown method is 0.04%.</p>
Other Link： https://ci.nii.ac.jp/naid/130007934370
Kosode Yoshiki, Obara Hidemine, Kawamura Atsuo, Hosoyamada Yu, Suenaga Toyoaki, Yuzurihara Itsuo
IEEJ JOURNAL OF INDUSTRY APPLICATIONS 9 ( 4 ) 444 - 452 2020.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 電気学会 Joint Work
<p>One-cycle current deadbeat and half-cycle current deadbeat are implemented to a two-phase interleaved DC-DC buck converter. It is confirmed that output voltage driven and outputted by half-cycle current deadbeat is more stable. When the capacitance of LC filter was reduced 3.22µF to 1µF, rise time, step-up duration of 40V to 120V, is shortened to 10.3µs significantly.</p>
Other Link： https://ci.nii.ac.jp/naid/130007868249
Application of Multi-Level Converter for Fast Current Control in Small-Scale DC Power Network
Masaya Katayama, Tatsuki Ohno, Hidemine Obara, and Atsuo Kawamura
IEEE Transactions on Industry Applications 55 ( 3 ) 2902 - 2909 2019.5 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：IEEE Joint Work
Active Gate Control in Half-Bridge Inverters Using Programmable Gate Driver ICs to Improve both Surge Voltage and Converter Efficiency
Hidemine Obara, Keiji Wada, Koutaro Miyazaki, Makoto Takamiya, and Takayasu Sakurai
IEEE Transactions on Industry Applications 54 ( 5 ) 4603 - 4611 2018.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：IEEE Joint Work
ソーラー・デカスロン・ヨーロッパ2014－千葉大学の挑戦
川瀬貴晴，田島翔太，小原 秀嶺，羽澄亮平，那須智子
太陽エネルギー学会誌「太陽エネルギー」 40 ( 6 ) 53 - 61 2014.12
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution) Single Work
線形増幅器、及び電力変換装置
小原 秀嶺，大野 達樹，片山 正也，河村 篤男
Application no：特願2017-47150 Date applied：2017.3
Country of applicant：Domestic
ゲート駆動装置
小原 秀嶺，和田 圭二
Application no：特願2016-166831 Date applied：2016.8
Country of applicant：Domestic
電力変換回路および装置
佐藤 之彦，小原 秀嶺，中島 昭，大橋 弘通，西澤 伸一
Application no：特願2013-186885 Date applied：2013.9.10
Country of applicant：Domestic
マルチレベル電力変換回路および装置
佐藤 之彦，小原 秀嶺，大橋 弘通，中島 昭，西澤 伸一
Application no：特願2012-201460 Date applied：2012.9.13
Patent/Registration no：特許2014-535533 Date issued：2016.10.21
Country of applicant：Domestic
Best Paper Award
2019.11 IEEE International Future Energy Electronics Conference (IFEEC) 2019
Individual or group name of awards： Hidemine Obara
部門活動功労賞
2019.9 電気学会産業応用部門
Individual or group name of awards： 小原秀嶺
電気学会半導体電力変換研究会 優秀論文発表賞
2013.6 電気学会
Individual or group name of awards： 小原 秀嶺
電気学会産業応用部門大会 優秀論文発表賞
2011.9 電気学会
Individual or group name of awards： 小原 秀嶺
電磁ノイズを発生しないパワーエレクトロニクス基盤技術の創生
2020.4
科学研究費補助金 Grant-in-Aid for Scientific Research(B)
Investigator(s)：小原 秀嶺
Grant type：Competitive
フライングキャパシタ線形増幅回路の超多直列化によるノイズレスインバータの実現
2018.4 - 2020.3
科学研究費補助金
Grant type：Competitive
効率99.9％級のエネルギー変換が拓く持続発展可能グリーン社会の実現
2017.6
科学研究費補助金 Grant-in-Aid for Scientific Research(S)
Grant type：Competitive
変換効率９９．９％級の電力変換器の実現
2017.4 - 2017.5
科学研究費補助金 Grant-in-Aid for Scientific Research(A)
Investigator(s)：河村篤男
Grant type：Competitive
直流マイクログリッドにおける高速高精度パワーフロー制御を実現する電力変換器の開発
2016.4 - 2018.3
科学研究費補助金 Grant-in-Aid for Young Scientists(B)
Investigator(s)：小原秀嶺
Grant type：Competitive
新世代Si-IGBTと応用基本技術の研究開発
2017.4 - 2020.3
NEDO 低炭素社会を実現する次世代パワーエレクトロニクスプロジェクト
Investigator(s)：平本俊郎
Study on Application of Multi-Level Converter to Realize Fast Current Control in DC Micro-Grid with Extremely Low Impedance Interconnections
Masaya Katayama, Tatsuki Ohno, Hidemine Obara, and Atsuo Kawamura
IEEE PEDS 2017 (Honolulu, USA)
Event date： 2017.12
Language：English Presentation type：Oral presentation (general)
Venue：Honolulu, USA
DOI: 10.1109/PEDS.2017.8289205
Browse Conferences > Power Electronics and Drive S... Flying-capacitor linear amplifier to realize both high-efficiency and low distortion for power conversion applications requiring high-quality waveforms
Tatsuki Ohno, Masaya Katayama, Hidemine Obara, Atsuo Kawamura
2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS) (Honolulu, HI, USA)
Event date： 2017.12
Language：English Presentation type：Oral presentation (general)
Venue：Honolulu, HI, USA
DOI: 10.1109/PEDS.2017.8289202
Range extension of electric vehicles by two battery HEECS chopper based power train
Ayato Tamura, Koji Kobayashi, Yukinori Tsuruta, Kazuaki Kojima, Hidemine Obara, Atsuo Kawamura
2017 IEEE Energy Conversion Congress and Exposition (ECCE) (Cincinnati, OH, USA)
Event date： 2017.11
Language：English Presentation type：Oral presentation (general)
Venue：Cincinnati, OH, USA
DOI: 10.1109/ECCE.2017.8096770
Power electronics 2.0: IoT-connected and Al-controlled power electronics operating optimally for each user
Makoto Takamiya, Koutaro Miyazaki, Hidemine Obare True Sai
2017 29th International Symposium on Power Semiconductor Devices and IC's (ISPSD) (Sapporo, Japan)
Event date： 2017.6
Language：English Presentation type：Oral presentation (general)
Venue：Sapporo, Japan
10.23919/ISPSD.2017.7988875
Total volume reduction of passive components in Grid-connected converters by introducing flying capacitor multilevel topology
Sae Mochidate, Yukihiko Sato, Tomotate Ito, Hidemine Obara
2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) ( Kaohsiung, Taiwan)
Event date： 2017.6
Language：English Presentation type：Oral presentation (general)
Venue： Kaohsiung, Taiwan
DOI: 10.1109/IFEEC.2017.7992098
高昇圧高効率電力変換器の研究
Offer organization: アルプスアルパイン株式会社，千葉大学 Cooperative Research within Japan
Project Year： 2021.6 -
パワー半導体パッケージおよびパワーモジュールの内部熱インピーダンス抽出法に関する研究と開発
Offer organization: アンソフト・スピリット株式会社 Cooperative Research within Japan
Project Year： 2020.11 - 2021.10
パワーエレクトロニクス用無線センサの開発
Cooperative Research within Japan
Project Year： 2019.7 - 2020.1
インテリジェントデジタルモジュールを実現する多直列制御技術のFS研究
Offer organization: 一般社団法人NPERC-J Funded Research offered by Enterprises
Project Year： 2019.4 -
無線式パルス発生器のEMC耐性向上に関する研究
Offer organization: 三喜電機株式会社 Cooperative Research within Japan
Project Year： 2018.8 - 2019.1
電気学会 IPEC2018論文委員会
2017.4 委員
Committee type：Academic society
電気学会 産業応用部門和文誌論文委員会
2017.4 委員
Committee type：Academic society
電気学会 産業応用部門英文誌論文委員会
2017.4 委員
Committee type：Academic society
電気学会 IPEC2018実行委員会
2016.12 委員
Committee type：Academic society
電気学会 産業応用部門編修広報委員会
2016.4 委員
Committee type：Academic society
mpact of Multi-Level Converter on Motion Control and Micro-Grid Applications
Role(s)： Guest
Beijing Power Electronics Society Academic Report Tsinghua University 2016.9
