PUBLICATION

発表された論文はここでご覧いただけます

2022

1)

Toru Sai, Younghyun Moon and Yasuhiro Sugimoto, “New High Step-Up DC-DC Converter with Quasi Z-source Network,” IEICE Electronics Express, Advance online publication: August 29, 2022.

2021

5)

D. Yamaguchi, Y-S Cheng, T. Mannen, H. Obara, K. Wada, T. Sai, M. Takamiya, T. Sakurai, “An Optimization Method of a Digital Active Gate Driver Under Continuous Switching Operation Being Capable of Suppressing Surge Voltage and Power Loss in PWM inverters,” IEEE Transactions on Industry Applications (Early Access), Nov. 2021.

4)

R. Katada, K. Hata, Y. Yamauchi, T-W. Wang, R. Morikawa, C-H Wu, T. Sai, P-H Chen, M. Takamiya, “Digital Gate Driving (DGD) is Double-Edged Sword: How to Avoid Huge Voltage Overshoots Caused by DGD for GaN FETs,” IEEE Energy Conversion Congress and Exposition (ECCE), 10-14 Oct. 2021.

3)

Y-S. Cheng, D. Yamaguchi, T. Mannen, K. Wada, T. Sai, K. Miyazaki, T. Makoto, T. Sakurai, “High-Speed Searching of Optimum Switching Pattern for Digital Active Gate Drive to Adapt to Various Load Conditions,” IEEE Transactions on Industrial Electronics (Early Access), June 2021.

2)

R. Katada, K. Hata, Y. Yamauchi, T-W. Wang, R. Morikawa, C-H. Wu, T. Sai, P-H. Chen, M. Takamiya, “5 V, 300 MSa/s, 6-bit Digital Gate Driver IC for GaN Achieving 69% Reduction of Switching Loss and 60% Reduction of Current Overshoot,” IEEE 33rd International Symposium on Power Semiconductor Devices and ICs (ISPSD), pp. 55-58, May 2021.

1)

Y. Yamauchi, T. Sai, K. Hata, M. Takamiya, “0.55 W, 88%, 78 kHz, 48 V-to-5 V Fibonacci Hybrid DC–DC Converter IC Using 66 mm3 of Passive Components With Automatic Change of Converter Topology and Duty Ratio for Cold-Crank Transient,” IEEE Transactions on Power Electronics, Vol. 36, No. 8, pp. 9273-9284, Aug. 2021.

2020

8)
R. Morikawa, T. Sai, K. Hata, and M. Takamiya, “Automatic Generation of Gate Driving Vectors for Digital Gate Drivers to Satisfy EMI Regulations,” IEEE Energy Conversion Congress & Exposition (ECCE), Detroit, USA, pp. 4931-4936, Oct. 2020.
7)
T. -W. Wang, T. Sai, R. Morikawa, K. Hata, T. Sakurai, P. -H. Chen, and M. Takamiya, “Automatic Search Method of Robust Gate Driving Vectors for Digital Gate Drivers Against Variations in Operating Conditions of IGBT’s,” IEEE Energy Conversion Congress & Exposition (ECCE), Detroit, USA, pp. 3798-3802, Oct. 2020.
6)
D. Yamaguchi, Y. S. Cheng, T. Mannen, H. Obara, K. Wada, T. Sai, M. Takamiya, and T. Sakurai, “Digital Active Gate Control for a Three-Phase Inverter Circuit for a Surge Voltage Suppression and Switching Loss Reduction,” IEEE Energy Conversion Congress & Exposition (ECCE), Detroit, USA, pp. 3782-3787, Oct. 2020.
5)
H. Qiu, T. Sai, and M. Takamiya, “A 6.78 MHz Wireless Power Transfer System Enabling Perpendicular Wireless Powering with Efficiency Increase from 0.02% to 48.2% by Adaptive Magnetic Field Adder IC Integrating Shared Coupling Coefficient Sensor,” IEEE Symposium on VLSI Circuits, Hawaii, pp. 1-2, June 2020.

4)
Y. Yamauchi, T. Sai, T. Sakurai, and M. Takamiya, “Theoretical and Experimental Analyses of Dynamic Performance of Three-Level Buck Converters in Discontinuous Conduction Mode for Standby Mode Power Supply,” IEEJ Journal of Industry Applications, Vol.9, No.3, pp. 271 – 281, May 2020.
3)
T. Sai, K. Miyazaki, H. Obara, T. Mannen, K. Wada, I. Omura, T. Sakurai, and M. Takamiya, “Stop-and-Go Gate Drive Minimizing Test Cost to Find Optimum Gate Driving Vectors in Digital Gate Drivers,” IEEE Applied Power Electronics Conference and Exposition (APEC), New Orleans, USA, pp. 3096-3101, March 2020.
2)
K. Hata, Y. Yamauchi, T. Sai, T. Sakurai, and M. Takamiya, “48V-to-12V Dual-Path Hybrid DC-DC Converter,” IEEE Applied Power Electronics Conference and Exposition (APEC), New Orleans, USA, pp. 2279-2284, March 2020.
1)
畑 勝裕,山内 善高,崔 通,桜井 貴康,高宮 真, “インダイレクト型ハイブリッドDC-DCコンバータのインダクタ電流低減効果に関する検討,” 電気学会,半導体電力変換・モータドライブ合同研究会,電気学会研究会資料,SPC-20-035,pp. 43-48,大阪,2020年1月.

2019

6)
T. Mannen, D. Yamaguchi, K. Wada, H. Obara, T. Sai, K. Miyazaki, M. Takamiya, and T. Sakurai, “Effect on Digital Active Gate Control of a Practical IGBT Full-Bridge Inverter with the Additional DC-Link Capacitor Close to Power Devices,” IEEE International Future Energy Electronics Conference (IFEEC), Singapore, pp. 95-100, Nov. 2019.
5)
T. Sai, K. Miyazaki, H. Obara, T. Mannen, K. Wada, I. Omura, T. Sakurai, and M. Takamiya, “Robust Gate Driving Vectors to Load Current and Temperature Variations for Digital Gate Drivers,” IEEE International Future Energy Electronics Conference (IFEEC), Singapore, pp. 87-94, Nov. 2019. (Best Paper Awardを受賞)
4)
Y. Cheng, D. Yamaguchi, T. Mannen, K. Wada, T. Sai, K. Miyazaki, M. Takamiya, and T. Sakurai, “Digital Active Gate Drive with Optimal Switching Patterns to Adapt to Sinusoidal Output Current in a Full Bridge Inverter Circuit,” 45th Annual Conference of the IEEE Industrial Electronics Society (IECON), Lisbon, Portugal, pp. 1684-1689, Oct. 2019.
3)
T. Sai, K. Miyazaki, H. Obara, T. Mannen, K. Wada, I. Omura, M. Takamiya, and T. Sakurai, “Load Current and Temperature Dependent Optimization of Active Gate Driving Vectors,” IEEE Energy Conversion Congress & Exposition (ECCE), Baltimore, USA, pp. 3292-3297, Sep. 2019.
2)
H. Obara, T. Mannen, K. Wada, K. Miyazaki, T. Sai, M. Takamiya, and T. Sakurai, “Design
and Implementation of Digital Active Gate Control with Variable 63-level Drivability Controlled by Serial 4-bit Signals,” IEEE Energy Conversion Congress & Exposition (ECCE), Baltimore, USA, pp. 2408-2412, Sep. 2019.
1)
王 叡智,崔 通,磯部 敦生,山﨑 舜平,高宮 真,“結晶性酸化物半導体n型FETを用いた2 mHz, 44 aW発振回路の設計,” 電子情報通信学会ソサイエティ大会, C-12-41,大阪,2019年9月. (エレクトロニクスソサイエティ学生奨励賞を受賞)

2018

6)
H. Qiu, Y. Uno, T. Sai, S. Iguchi, Y. Mizutani, T. Hoshi, Y. Kawahara, Y. Kakehi, and M. Takamiya, “Luciola: A Light-Emitting Particle Moving in Mid-Air Based On Ultrasonic Levitation and Wireless Powering,” 11th ACM SIGGRAPH Conference and Exhibition on Computer Graphics and Interactive Techniques in Asia (SIGGRAPH Asia), Emerging Technologies, Tokyo, pp. 1 – 2, Dec. 2018.
5)
東京大学,科学技術振興機構(JST),ERATO 川原万有情報網プロジェクト, “Luciola:空間を飛び回るミリメートルサイズのLED光源を実現,” デジタルコンテンツ協会 デジタルコンテンツEXPO Innovative Technologies 2018, 幕張, D301, 2018年11月.
4)
T. Sai, Y. Yamauchi, H. Kando, T. Funaki, T. Sakurai, and M. Takamiya, “2/3 and 1/2 Reconfigurable Switched Capacitor DC–DC Converter With 92.9% Efficiency at 62 mW/mm2 Using Driver Amplitude Doubler,” IEEE Transactions on Circuits and Systems―II: Express Briefs, Vol. 65, No. 11, pp. 1654 – 1658, Nov. 2018.
3)
T. Sai, Y. Yamauchi, H. Kando, T. Funaki, T. Sakurai, and M. Takamiya, “Spike Noise Cancelling Circuit for Switched Capacitor DC-DC Converter Mounting MLCCs on CMOS Die,” IEEE International Workshop on Power Supply on Chip (PwrSoC), Hsinchu, Taiwan, pp. 63 – 64, Oct. 2018.
2)
Y. Uno, H. Qiu, T. Sai, S. Iguchi, Y. Mizutani, T. Hoshi, Y. Kawahara, Y. Kakehi, and M.
Takamiya, “Luciola: A Millimeter-Scale Light-Emitting Particle Moving in Mid-Air Based On Acoustic Levitation and Wireless Powering,” ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp), Singapore, Oct. 2018.
1)
高宮 真,宮崎 耕太郎,崔 通,小原秀嶺,萬年 智介,和田 圭二,附田 正則,安部 征哉,大村 一郎,桜井 貴康,“パワーエレクトロニクスとLSIの異分野連携:IGBT向けデジタルゲートドライバIC,” 電子情報通信学会ソサイエティ大会, CI-3-4,金沢,2018年9月.

2017

4)
Y. Uno, H. Qiu, T. Sai, S. Iguchi, Y. Mizutani, T. Hoshi, Y. Kawahara, Y. Kakehi, and M. Takamiya, “Luciola: A Millimeter-Scale Light-Emitting Particle Moving in Mid-Air Based On Acoustic Levitation and Wireless Powering,” Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), Volume 1, Issue 4, Article No. 166, 17 pages, Dec. 2017.
3)
M. Takamiya, K. Miyazaki, H. Obara, T. Sai, K. Wada, and T. Sakurai, “Power Electronics 2.0: IoT-Connected and AI-Controlled Power Electronics Operating Optimally for Each User,” The Institute of Electrical Engineers of Japan, 29th International Symposium on Power Semiconductor Devices and ICs (ISPSD), Sapporo, pp. 29 – 32, May 2017. (Invited)
2)
Y. Yamauchi, T. Sai, T. Sakurai, and M. Takamiya, “Modeling of 3-Level Buck Converters in Discontinuous Conduction Mode for Stand-by Mode Power Supply,” IEEE International Symposium for Circuits and Systems (ISCAS), Baltimore, USA, pp. 1282 – 1285, May 2017.
1)
宇野 祐輝,崔 通,星 貴之,桜井 貴康,高宮 真, “超音波ワイヤレス給電の距離・位置ずれ依存の実測,” 電子情報通信学会総合大会,B-21-26,名古屋,2017年3月.

2016

1)

崔 通,宮崎 耕太郎,安部 征哉,附田 正則,大村 一郎,小原 秀嶺,和田 圭二,高宮 真,桜井 貴康, “ディジタルゲート駆動ICを用いたIGBTのスイッチング時における損失とオ ーバーシュートの自動最適化 ,” 電気学会,電子デバイス・半導体電力変換合同研究会,電気学会研究会資料,SPC-16-153,pp. 19-24,北九州,2016年11月.