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Papers

Journal Papers (peer reviewed)


  1. Bo Yao, Qian Wang, Haoran Wang, Kazunori Hasegawa, and Huai Wang, "A Robust Testing Method for DC and AC Capacitors with Minimum Required Power Supply," IEEE Transactions on Power Electronics, vol. 37, no. 5, pp. 4942-4946., May 2022.
  2. K. Hasegawa, S. Abe, M. Tsukuda, I. Omura, and T. Ninomiya, "A testing method for evaluating shoot-through immunity of IGBTs in an inverter," Microelectronics Reliability, 114289, Available online 11 October 2021.
  3. K. Hasegawa, S. Abe, M. Tsukuda, I. Omura, and T. Ninomiya, "Shoot-through protection for an inverter consisting of the next-generation IGBTs with gate impedance reduction," Microelectronics Reliability, vol. 114, 113765, Nov. 2020.
  4. K. Hasegawa, S. Nishizawa, and I. Omura, "A Condition-Monitoring Method of DC-Link Capacitors Used in a High-Power Three-Phase PWM Inverter with an Evaluation Circuit," IEEJ Journal of Industry Applications, vol. 8, no. 3, pp. 480-487, May 2019.
  5. K. Hasegawa, S. Nishizawa, and I. Omura, “ESR and capacitance monitoring of a dc-link capacitor used in a three-phase PWM inverter with a front-end diode rectifier," Microelectronics Reliability, vols. 88-90, pp. 434-437, Sep. 2018.
  6. M.Tsukuda, S.Abe, K.Hasegawa, T.Ninomiya, and I.Omura, "Bias voltage criteria of gate shielding effect for protecting IGBTs from shoot-through phenomena," Microelectronics Reliability, vols. 88-90, pp. 482-485, Sep. 2018.
  7. Bat-Otgon Bat-Ochir, Battuvshin Bayarkhuu, Kazunori Hasegawa, Masanori Tsukuda, Bayasgalan Dugarjav, and Ichiro Omura, "Envelop tracking based embedded current measurement for monitoring of IGBT and power converter system," Microelectronics Reliability, vols. 88-90, pp. 500-504, Sep. 2018.
  8. K. Hasegawa, K. Tsuzaki, and S. Nishizawa, “DC-bias-voltage dependence of degradation of aluminum electrolytic capacitors,” Microelectronics Reliability, vol. 83, pp. 115-118, Apr. 2018.
  9. M. Tsukuda, K. Nakashima, S. Tabata, K. Hasegawa, and I. Omura, "Clamp type built-in current sensor using PCB in high-voltage power modules," Microelectronics Reliability, vol. 76-77, pp. 517-521, Sep. 2017.
  10. S. Abe, K. Hasegawa, M. Tsukuda, K. Wada, I. Omura, and T. Ninomiya, "Modelling of the shoot-through phenomenon introduced by the next generation IGBT in inverter applications," Microelectronics Reliability, vol. 76-77, pp. 465-469, Sep. 2017.
  11. K. Hasegawa, S. Takahara, S. Tabata, M. Tsukuda, and I. Omura, “A New Output Current Measurement Method with Tiny PCB Sensors Capable of Being Embedded in an IGBT Module,” IEEE Transactions on Power Electronics vol. 32, no. 3, pp. 1707-1712, Mar. 2017.
  12. K. Hasegawa,K. Kozuma, K. Tsuzaki, I. Omura, and S. Nishizawa, "Temperature rise measurement for power-loss comparison of an aluminum electrolytic capacitor between sinusoidal and square-wave current injections,"Microelectronics Reliability, vol. 64, pp. 98-100, Sep. 2016.
  13. K. Hasegawa, I. Omura, and S. Nishizawa, "Design and Analysis of a New Evaluation Circuit for Capacitors Used in a High-Power Three-Phase Inverter," IEEE Transactions on Industrial Electronics, vol. 63, no. 5, pp. 2679-2687, May 2016.
  14. K. Hasegawa, K. Yamamoto, H. Yoshida, K. Hamada, M. Tsukuda, and I.Omura, "Short-circuit protection for an IGBT with detecting the gate voltage and gate charge," Microelectronics Reliability, vol. 54, no. 9-10, pp. 1897-1900, Sep. 2014.
  15. K. Hasegawa and H. Akagi, "Low-Modulation-Index Operation of a Five-Level Diode-Clamped PWM Inverter With a DC-Voltage Balancing Circuit for a Motor Drive," IEEE Transactions on Power Electronics vol. 27, no. 8, pp. 3495-3504, Aug. 2012.
  16. K. Hasegawa and H. Akagi, "A New DC-Voltage-Balancing Circuit Including a Single Coupled Inductor for a Five-Level Diode-Clamped PWM Inverter," IEEE Transactions on Industry Appications., vol. 47, no. 2, pp. 841-852, Mar./Apr., 2011.
  17. K. Hasegawa and H. Akagi, "A DC-Voltage-Balancing Circuit for a Five-Level Diode-Clamped PWM Inverter Intended for Motor Drives," IEEJ Transactions on Industry Applications, vol. 130, no. 5, pp. 678-684, May 2010. (in Japanese)
    長谷川 一徳, 赤木 泰文, 「モータドライブ用5レベルダイオードクランプPWMインバータに適した直流電圧均一回路」,電気学会論文誌D,vol. 130, no. 5, pp. 678-684, May 2010.
  18. K. Hasegawa, N. Hatti, and H. Akagi, “A Transformerless Motor Drive with a Five-Level Diode-Clamped PWM Inverter for Fan/Blower Loads,” IEEJ Transactions on Industry Applications, vol. 129, no. 4, pp. 438-445, May 2009. (in Japanese)
    長谷川 一徳, Natchpong Hatti, 赤木 泰文, 「5レベルダイオードクランプPWMインバータを用いたトランスレス・モータドライブ -ファン・ブロワ負荷への応用-」, 電気学会論文誌D, vol. 129, no. 4, pp. 438-445, Apr. 2009.
  19. N. Hatti, K. Hasegawa, and H. Akagi, "A 6.6-kV transformerless motor drive using a five-level diode-clamped PWM inverter for energy savings of pumps and blowers," IEEE Transactions on Power Electronics, vol. 24, no. 3, pp. 796-803, Mar. 2009.

International Conference Papers (peer reviewed)


  1. K. Hasegawa, T. Kubo, Y. Hirose, "Condition Monitoring of a DC-Link Capacitor Used in a PWM Inverter with a Six-Pulse Diode Rectifier without Current Sensors," IEEE/IEEJ International Power Electronics Conference (IPEC), pp. 2557-2561, May 2022.
  2. K. Hasegawa, S. Sho, M. Tsukuda, I. Omura, M. Ichiki, T. Kato, "Output-Current Measurement of a PWM Inverter with a Tiny PCB Rogowski Sensor Integrated into an IGBT Module," IEEE Energy Conversion Congress and Exposition, pp. 5707-5711, Sep. 2019.
  3. Battuvshin Bayarkhuu, Bat-Otgon Bat-Ochir, Kazunori Hasegawa, Masanori Tsukuda, Bayasgalan Dugarjav, Ichiro Omura, "Analog Basis, Low-Cost Inverter Output Current Sensing with Tiny PCB Coil Implemented inside IPM," International Symposium on Power Semiconductor Devices and IC’s (ISPSD)., pp. 251-254, May 2019.
  4. M. Tsukuda, M. Sudo, K. Hasegawa, S. Abe, T. Saraya, T. Takakura, M. Fukui, K. Itou, S. Suzuki, K. Takeuchi, T. Ninomiya, T. Hiramoto, and I. Omura, "Self-Turn-on-Free 5V Gate Driving for 1200V Scaled IGBT," International Symposium on Power Semiconductor Devices and IC’s (ISPSD), pp. 339-342, May 2019.
  5. H. Iida, K. Hasegawa, I. Omura, "Mutual inductance influence to switching speed and TDR measurements for separating self- and mutual inductances in the package," International Symposium on Power Semiconductor Devices and IC’s (ISPSD), pp. 503-506, May 2019.
  6. K. Hasegawa, I. Omura, "Calorimetric Power-Loss Measurement of a High-Power Film Capacitor with Actual Ripple Current Generated by a PWM Inverter," IEEE Energy Conversion Congress and Exposition, pp. 4688-4691, Sep. 2018.
  7. K. Hasegawa, I. Omura, S. Nishizawa, "An Evaluation Circuit for DC-Link Used in a High-Power Three-Phase Inverter Capacitors with Condition Monitoring," IEEE/IEEJ International Power Electronics Conference (IPEC), pp. 1938-1942, Mar. 2018.
  8. S. Tabata, K. Hasegawa, M. Tsukuda, I. Omura, "New power module integrating output current measurement function," International Symposium on Power Semiconductor Devices and IC’s (ISPSD) pp. 267-270, Jun. 2017
  9. K. Hasegawa, I. Omura, S. Nishizawa, "An Evaluation Circuit for DC-Link Capacitors Used in a Single-Phase PWM Inverter" International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), 5 pages, May 2017.
  10. K. Hasegawa, K. Wada, I. Omura, "Mutual Inductance Measurement for Power Device Package Using Time Domain Reflectometry," IEEE Energy Conversion Congress and Exposition (ECCE), 6 pages, Sep. 2016.
  11. K. Hasegawa, I. Omura, S. Nishizawa, "A New Evaluation Circuit with a Low-Voltage Inverter Intended for Capacitors Used in a High-Power Three-Phase Inverter," IEEE Applied Power Electronics Conference (APEC), pp. 3032-3037, Mar. 2015
  12. K. Yamamoto, F. Ichihara, K. Hasegawa, M. Tsukuda, I.Omura, "60 GHz Wireless Signal Transmitting Gate Driver for IGBT," International Symposium on Power Semiconductor Devices and IC's (ISPSD) pp. 133-136, May 2015.
  13. K. Hasegawa, H. Akagi, "Low-speed rated-torque operation of a motor drive using a five-level diode-clamped PWM inverter with a front-end diode rectifier," IEEE International Conference on Power Electronics (ICPE) –ECCE Asia, pp. 1371-1377, Jun. 2011.
  14. K. Hasegawa, H. Akagi, "Voltage balancing of the four split DC capacitors for a five-level diode-clamped PWM inverter with a front-end diode rectifier," IEEJ/IEEE International Power Electronics Conference, pp. 734-739, Jun. 2010.
  15. K. Hasegawa, H. Akagi, "A new DC-voltage-balancing circuit including a single coupled inductor for a five-level diode-clamped PWM inverter," IEEE Energy Conversion Congress and Exposition, pp. 2153-2159, Sep. 2009.
  16. N. Hatti, K. Hasegawa, H. Akagi, "A 6.6-kV transformerless motor drive using a five-level diode-clamped PWM inverter for energy savings of pumps and blowers," IEEE Power Electronics Specialists Conference, pp. 352-358, Jun. 2008.

Awards

  • IEEE Transactions on Power Electronics Prize Letter Award, 2018.
  • 電気学会 優秀論文発表賞 部門表彰(産業応用部門大会), 2017.
  • IEEE/IEEJ IPEC-Sapporo Student Paper Award, 2010.

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