Publications and Presentations
2026
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高宮 真, "損失、EMI、コストの3つを同時に低減するアクティブゲート駆動IC," RX Japan パワーデバイス&モジュールEXPO パワエレ アカデミックフォーラム, 東京, 2026年1月.
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K. Idei, T. Mamee, H. Lutzen, N. Kaminski, K. Hata, M. Takamiya, S. Nishizawa, and W. Saito, "Detection of Wire Lift-Off in Si-IGBTs and SiC-MOSFETs Using Machine Learning on Switching Waveforms," IEEE Open Journal of Power Electronics, vol. 7, pp. 907 - 927, Feb. 2026.
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W. Saito, K. Watabe, S. Kusunoki, S. Nakano, K. Nakamura, T. Mori, T. Sakurai, M. Takamiya, and S. Nishizawa, “Measurements of Thermal Resistance by Plateau Voltage Sampling” VDE International Conference on Integrated Power Electronics Systems (CIPS), Dresden, Germany, pp. 1- 6, March 2026.
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財前昌平, 畑 勝裕, 高宮 真, 西澤伸一, 齋藤 渉, "自動タイミング制御型デジタルゲートドライバ集積IGBTパワーモジュール設計におけるエミッタ寄生インダクタンスによる影響," 電気学会全国大会,4-039,仙台,2026年3月.
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Y. Sukita, T. Inuma, M. Ide, K. Morokuma, Y. Wada, Y. Yamaoka, Y. Mukunoki, and M. Takamiya, “Method for Determining Switching Timing of Gate Drive Current of Active Gate Driver to Maximize Turn-off Loss Reduction Under Fixed VDS Overshoot Condition in SiC MOSFETs” IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, USA, pp. 1- 8, March 2026.
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T. Liu, Y. Liang, M. Ide, and M. Takamiya, “Active Gate Driver IC Using Gate Current Sensing for SiC MOSFETs,” 電気学会, 誘電・絶縁材料/電線・ケ-ブル合同研究会, DEI-26-039, 東京, 2026年3月.
Publications and Presentations
2025
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K. Horii, K. Hata, S. Hayashi, K. Wada, I. Omura, and M. Takamiya, "Single-Input Dual-Output Digital Gate Driver IC Automatically Equalizing Drain Current Variations of Two Parallel-Connected SiC MOSFETs," IEEE Transactions on Power Electronics, Vol.40, No.1, pp. 467 - 485, Jan. 2025.
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Y. Liang, K. Hata, and M. Takamiya, “Fully Integrated Closed-Loop Active Gate Driver IC With Real-Time Control of Gate Current Change Timing by Gate Current Sensing” IEEE Applied Power Electronics Conference and Exposition (APEC), Atlanta, USA, pp. 1084-1089, March 2025.
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Y. Sukita, K. Hata, H. Kondo, K. Watanabe, K. Nagayoshi, and M. Takamiya, “Demonstration of Efficiency Increase of 350 V-to-13.3 V Isolated DC-DC Converters for Electric Vehicles by Active Gate Driving” IEEE Applied Power Electronics Conference and Exposition (APEC), Atlanta, USA, pp. 1102-1107, March 2025.
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K. Saiga, S. Zaizen, S. Nakano, S. Kusunoki, K. Watabe, K. Hata, M. Takamiya, S. Nishizawa, and W. Saito, “High Temperature Operation of Digital Gate Driver Integrated into a Power Module” IEEE Applied Power Electronics Conference and Exposition (APEC), Atlanta, USA, pp. 2551-2555, March 2025.
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福永博生, 矢野広気, 畑 勝裕, 井出倫滉, 渡辺健一, 永吉謙一, 高宮 真, "スイッチング損失とゲートドライブ損失を削減する共振アクティブゲート駆動回路の提案," 電気学会全国大会,4-109,東京,2025年3月.
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T. Mamee, K. Hata, M. Takamiya, T. Sakurai, S. Nishizawa, and W. Saito, "Highly Accurate Condition Monitoring Using Digital Gate Control and Convolutional Neural Networks," International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe, Nürnberg, Germany, pp. 2548-2555, May 2025.
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鋤田陽平,畑 勝裕,近藤弘規,渡辺健一,永吉謙一,高宮 真, "Demonstration of Efficiency Increase of 350 V-to-13.3 V Isolated DC-DC Converters for Electric Vehicles by Active Gate Driving," 電子情報通信学会,LSIとシステムのワークショップ,ポスターセッション 学生部門,4,東京,2025年5月. (学生部門 優秀ポスター賞を受賞)
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福永博生,矢野広気,畑 勝裕,井出倫滉,近藤弘規,渡辺健一,永吉謙一,高宮 真, "共振アクティブゲート駆動回路によるスイッチング損失とゲートドライブ損失の削減," 電子情報通信学会,LSIとシステムのワークショップ,ポスターセッション 学生部門,22,東京,2025年5月.
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Y. Liang, K. Hata, and M. Takamiya, "Closed-Loop Active Gate Driver IC Sensing Only Gate Terminal of IGBTs," 電子情報通信学会,LSIとシステムのワークショップ,ポスターセッション 一般部門,1,東京,2025年5月.
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T. Takamori, K. -T. Li, H. -L. Wang, T. Otobe, S. Sue, R. Nagahama, P. -H. Chen, and M. Takamiya, "Current Measurement of GaN HEMTs Without Insertion Impedance and Unaffected by Magnetic Field Noise Using Two Optical Probe Electric Current Sensors," IEEE Energy Conversion Congress & Exposition - Asia (ECCE Asia), Bengaluru, India, pp. 1 - 5, May 2025. (Best Paper Awardを受賞)
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T. Mamee, K. Hata, M. Takamiya, T. Sakurai, S. Nishizawa, and W. Saito, "Multi-Parameter Detection of Bond Wire Lift-Off, Current, and Temperature in IGBT Modules via Gate Voltage Waveforms and CNNs with Digital Gate Control," Elsevier Power Electronic Devices and Components, Vol. 12, 100106, pp. 1 - 9, June 2025.
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Y. Liang, Y. Sukita, M. Ide, and M. Takamiya, "Closed-Loop Active Gate Driver IC with Gate Current Control when Collector Current Equals Load Current," The Institute of Electrical Engineers of Japan, 37th International Symposium on Power Semiconductor Devices and ICs (ISPSD), Kumamoto, pp. 105 - 108, June 2025.
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福永博生,矢野広気,畑 勝裕,井出倫滉,鋤田陽平,高森太郎,梁 耀淦,渡辺健一,近藤弘規,永吉謙一,高宮 真, "スイッチング損失とゲートドライブ損失を削減する共振アクティブゲート駆動回路の実証," 電気学会 産業応用部門大会,1-73,徳島,2025年8月.
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髙森太郎,黃 彥允,梁 耀淦,井出倫滉,陳 柏宏,高宮 真, "負荷電流推定センサ回路を集積化したデジタルゲートドライバIC," 電気学会 産業応用部門大会,1-76,徳島,2025年8月.
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武 秉晨,張 怡琛,梁 耀淦,井出倫滉,高宮 真, “SiC MOSFETのアクティブゲート駆動に向けたPower-on Reset機能付き高速フローティングレベルシフタ回路,” 電子情報通信学会ソサイエティ大会, C-12-2,岡山,2025年9月.
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Y. Li, Y. Liang, Y. Zhang, M. Ide, and M. Takamiya, "Active Gate Driver IC with High-Level Voltage Generated by Bootstrap Circuits for Current Balancing and Circulating Current Suppression of Two Paralleled SiC MOSFETs with Kelvin-Source Connection," 電子情報通信学会ソサイエティ大会, C-12-3,岡山,2025年9月.
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太田岳宏, 渡部毅代登, 楠 茂, 中野 智, 中村浩二, 森 時彦, 桜井貴康, 高宮 真, 西澤伸一, 齋藤 渉, “パワーサイクル劣化検出に向けたLHL法の過渡熱応答解析,” 電気学会, 電子デバイス・半導体電力変換合同研究会, SPC-25-199, 金沢, 2025年10月.
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出井和音, Mamee Thatree, Mueller Jonas, Lutzen Hauke, Kaminski Nando, 畑 勝裕, 高宮 真, 西澤伸一, 齋藤 渉, “機械学習によるSiCパワーモジュールのスイッチング波形を用いたパワーサイクル劣化検出,” 電気学会, 電子デバイス・半導体電力変換合同研究会, SPC-25-200, 金沢, 2025年10月.
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M. Takamiya, "Gate Driver Circuit Design for Low-Loss and Highly Reliable Switching of Power Devices," Tutorial in IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA 2025), Macao, Oct. 2025. (Invited)
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Y. -Y. Huang, M. Takamiya, and P. -H. Chen, "Serial-Stacked Single-Inductor Dual-Source Triple-Output Energy Harvesting Interface With 2D-MPPT for Battery-Free IoT Devices," IEEE Transactions on Circuits and Systems―I: Regular Papers, Vol. 72, No. 11, pp. 6592 - 6603, Nov. 2025.
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H. Fukunaga, H. Yano, K. Hata, M. Ide, Y. Sukita, T. Takamori, Y. Liang, H. Kondo, K. Watanabe, K. Nagayoshi, and M. Takamiya, "Resonant Active Gate Drive Circuit for Reducing Gate Drive Loss and Switching Loss," IEEE International Future Energy Electronics Conference (IFEEC), Bali, Indonesia, pp. 422-427, Nov. 2025.
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T. Takamori, Y. -Y. Huang, Y. Liang, M. Ide, P. -H. Chen, and M. Takamiya, "Miller Plateau Voltage Sensor Circuit Integrated Into Gate Driver IC for Physics-Based Load Current Estimation," IEEE International Future Energy Electronics Conference (IFEEC), Bali, Indonesia, pp. 616-621, Nov. 2025.
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鄭 賢昱, 井出倫滉, 古田善一, 根塚智裕, 高宮 真, “縦積みのアクティブEMIキャンセラ回路の提案,” 電子情報通信学会,ICD/CAS学生・若手研究会,402, 宮古島, 2025年12月.
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高宮 真, "1チップ化で動的ゲート駆動の実装容易に、パワー半導体のスイッチング損失49%減," 日経エレクトロニクス NEパワー・エレクトロニクス・サミット2025 NEパワー・エレクトロニクス・アワード2025贈賞式, 東京, 2025年12月.
2024
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H. Qiu, X. Zhang, J. Chen, M. Takamiya, and Y. Shi, "A 6.78-MHz Coupling Coefficient Sensorless Wireless Power Transfer System Charging Multiple Receivers With Efficiency Maximization by Adaptive Magnetic Field Distributor IC," IEEE Transactions on Circuits and Systems―I: Regular Papers, Vol. 71, No. 2, pp. 974 - 983, Feb. 2024.
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H. Zhou, T. Inuma, D. Zhang, K. Hata, and M. Takamiya, “Variable Gate Current Range Digital Gate Driver IC Always Providing 6-bit Controllability in Various IGBTs” IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, USA, pp. 1125-1129, Feb. 2024.
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矢野広気,畑 勝裕,谷口佳輔,古田善一,高宮 真, "70V耐圧のICプロセスを用いた400V入力、12V出力のチップ直列接続ハイブリッドDC-DCコンバータ," 電子情報通信学会総合大会,C-12-16,広島,2024年3月.
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Z. Lou, T. Mamee, K. Hata, M. Takamiya, S. Nishizawa, and W. Saito, "Mechanism of Gate Voltage Spike under Digital Gate Control at IGBT Switching Operations," Elsevier Power Electronic Devices and Components, Vol. 7, 100054, pp. 1 - 7, April 2024.
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高宮 真, "パワーエレクトロニクスにおけるノイズと損失の問題をソフトウエアで解決するデジタルゲートドライバ技術," パワーエレクトロニクス学会 第252回定例研究会, JIPE-50-01, 大阪, 2024年4月.(招待講演)
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Y. Liang, H. Yano, H. Zhou, K. Hata, and M. Takamiya, "Fully Integrated Bond Wire Lift-off Sensor Circuits for Reliable Power Electronic Systems," 電子情報通信学会,LSIとシステムのワークショップ,ポスターセッション 一般部門,2,東京,2024年5月.
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高宮 真, "電源システムをパワー半導体レベルでDX化する「デジタルゲートドライバ技術」," EDN Japan 電源設計・開発セミナー2024 春~DX/GXを支える電源技術の最前線~, オンライン, 2024年5月.(基調講演)
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M. Takamiya, "Injecting Digital into Power Electronics via Gate Driver ICs," IEEE 10th International Power Electronics and Motion Control Conference-ECCE Asia (IPEMC 2024-ECCE Asia), Chengdu, China, May 2024. (Keynote)
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T. Inuma, D. Zhang, K. Hata, K. Mikami, K. Hatori, K. Tanaka, W. Saito, and M. Takamiya, "Digital Active Gate Driving Automatically Minimizing Switching Loss While Keeping Surge Current Below User-Specified Target," IEEE 10th International Power Electronics and Motion Control Conference-ECCE Asia (IPEMC 2024-ECCE Asia), Chengdu, China, pp. 1-6, May 2024.
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Y. Liang, H. Yano, H. Zhou, K. Hata, and M. Takamiya, "Bond Wire Lift-off Sensor Circuit for Power Devices Integrated in Gate Driver IC," IEEE 10th International Power Electronics and Motion Control Conference-ECCE Asia (IPEMC 2024-ECCE Asia), Chengdu, China, pp. 1-5, May 2024. (Best Paper Award Second Prizeを受賞)
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H. Zhou, T. Inuma, D. Zhang, K. Hata, and M. Takamiya, "Active Gate Driving With Full 6-Bit Resolution for Different SiC MOSFETs Using Variable Gate Current Range Digital Gate Driver IC," IEEE 10th International Power Electronics and Motion Control Conference-ECCE Asia (IPEMC 2024-ECCE Asia), Chengdu, China, pp. 1-5, May 2024.
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T. -W. Wang, L. -C. Chen, M. Takamiya, and P. -H. Chen, "Active Gate Driver IC Integrating Gate Voltage Sensing Technique for SiC MOSFETs," IEEE Transactions on Power Electronics, Vol.39, No.7, pp. 8562 - 8571, July 2024.
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T. Mamee, Z. Lou, K. Hata, M. Takamiya, T. Sakurai, S. -I. Nishizawa, and W. Saito, "Estimating of IGBT Bond Wire Lift-Off Trend Using Convolutional Neural Network (CNN)," IEEE Access, Vol.12, pp. 96936 - 96945, July 2024.
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高宮 真, "パワー半導体を賢く操るデジタルアクティブゲート駆動技術とゲート端子経由のセンシング技術," パワエレアカデミー 第37回パワーエレクトロニクスセミナー, 横浜, 2024年8月.
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Y. Liang, K. Mikami, T. Takamori, H. Zhou, K. Hata, W. Saito, and M. Takamiya, "3.6 kV, 2000 A Demonstration of Natural Active Gate Driving With 6.5 kV IGBTs," 電気学会 産業応用部門大会,1-62,水戸,2024年8月.
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M. Takamiya and H. Ohashi, "Digitalization of Future Grid," European Center for Power Electronics (ECPE) Workshop: Sustainable Energy Supply to Reach Net-Zero CO2 Emissions by 2050, Darmstadt, Germany, Sep. 2024.
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Y. Liang, H. Zhou, D. Zhang, K. Hata, and M. Takamiya, "Natural Active Gate Driving for Breaking Trade-off Between Switching Loss and Current Overshoot Using Ordinary Gate Driver," IEEE Energy Conversion Congress & Exposition (ECCE), Phoenix, USA, pp. 1-6, Oct. 2024.
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出井和音, Mamee Thatree, Lutzen Hauke, Kaminski Nando, 畑 勝裕, 高宮 真, 西澤伸一, 齋藤 渉, “スイッチング波形の機械学習を用いたパワーサイクル劣化検出における測定回路と波形組合せの効果,” 電気学会, 電子デバイス・半導体電力変換合同研究会, SPC-24-188, 日立, 2024年11月.
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雑賀一真, 財前昌平, 中野 智, 楠 茂, 渡部毅代登, 畑 勝裕, 高宮 真, 西澤伸一, 齋藤 渉, “デジタルゲートドライバを集積したパワーモジュールの高温動作,” 電気学会, 電子デバイス・半導体電力変換合同研究会, SPC-24-189, 日立, 2024年11月.
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H. Shiotsu, B. Battuvshin, D. He, K. Wada, M. Takamiya, K. Akatsu, and I. Omura, "High Pulse Current IGBT Power Module for MRM Drive," International Conference on Electrical Machines and Systems (ICEMS), Fukuoka, Japan, pp. 1-4, Nov. 2024.
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K. Akatsu, Y. Okajima, K. Wada, I. Omura, and M. Takamiya, "A Novel Magnet Reversal Motor (MRM) Driven by High Pulse Current for Copper Loss Reduction," International Conference on Electrical Machines and Systems (ICEMS), Fukuoka, Japan, pp. 1-4, Nov. 2024.
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K. Yamashita, K. Wada, M. Takamiya, I. Omura, and K. Akatsu, "High Pulse and Sinusoidal Current Output Inverter for MRM Drive," International Conference on Electrical Machines and Systems (ICEMS), Fukuoka, Japan, pp. 1-4, Nov. 2024.
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Y. Sukita, H. Zhang, D. Zhang, K. Hata, K. Wada, K. Akatsu, I. Omura, and M. Takamiya, "Gate Driver IC With Fully Integrated Overcurrent Protection for Driving Magnet Reversal Motor With High Pulse Current," International Conference on Electrical Machines and Systems (ICEMS), Fukuoka, Japan, pp. 1-5, Nov. 2024.
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Y. Sukita, K. Hata, K. Morokuma, Y. Wada, Y. Yamaoka, Y. Mukunoki, and M. Takamiya, "Method for Determining Optimum Time in Time-Domain Stop-and-Go Active Gate Driving," IEEE Southern Power Electronics Conference (SPEC), Brisbane, Australia, pp. 1-7, Dec. 2024.
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鋤田陽平, 畑 勝裕, 諸熊健一, 和田幸彦, 山岡祐太, 椋木康滋, 高宮 真, “時間領域Stop-and-Goアクティブゲート駆動における最適時間の決定手法,” 電子情報通信学会,ICD/CAS学生・若手研究会,303, 石垣島, 2024年12月.
2023
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Z. Lou, T. Mamee, K. Hata, M. Takamiya, S. -I. Nishizawa, and W. Saito, "IGBT Power Module Design for Suppressing Gate Voltage Spike at Digital Gate Control," IEEE Access, Vol.11, pp. 6632 - 6640, Jan. 2023.