• 335 Citations
  • 10 h-Index
20052020
If you made any changes in Pure these will be visible here soon.

Fingerprint Dive into the research topics where Kazuhiro Umetani is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 1 Similar Profiles
Inductance Engineering & Materials Science
Reluctance motors Engineering & Materials Science
Networks (circuits) Engineering & Materials Science
Power converters Engineering & Materials Science
Equivalent circuits Engineering & Materials Science
Copper Engineering & Materials Science
Topology Engineering & Materials Science
DC-DC converters Engineering & Materials Science

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2005 2020

  • 335 Citations
  • 10 h-Index
  • 46 Conference contribution
  • 35 Article

Effects of secondary leakage inductance on the LLC resonant converter

Noah, M., Shirakawa, T., Umetani, K., Imaoka, J., Yamamoto, M. & Hiraki, E., Jan 2020, In : IEEE Transactions on Power Electronics. 35, 1, p. 835-852 18 p., 8691610.

Research output: Contribution to journalArticle

Inductance
Magnetic cores
Electric potential
Bandwidth
Air

Core loss modeling based on equivalent circuit for switched reluctance motors

Kusumi, T., Kobayashi, K., Hara, T., Umetani, K. & Hiraki, E., Feb 1 2019, Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019. Institute of Electrical and Electronics Engineers Inc., p. 1743-1748 6 p. 8754931. (Proceedings of the IEEE International Conference on Industrial Technology; vol. 2019-February).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reluctance motors
Equivalent circuits
Magnetic flux
Hysteresis loops
History
2 Citations (Scopus)

Effects of secondary leakage inductance on the LLC resonant converter - Part i: Transformer voltage gain and efficiency

Noah, M., Shirakawa, T., Umetani, K., Imaoka, J., Yamamoto, M. & Hiraki, E., May 24 2019, 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019. Institute of Electrical and Electronics Engineers Inc., p. 780-786 7 p. 8721980. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; vol. 2019-March).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Inductance
Electric potential
Magnetic cores
Air
2 Citations (Scopus)

Effects of secondary leakage inductance on the LLC resonant converter - Part II: Frequency control bandwidth with respect to load variation

Noah, M., Shirakawa, T., Umetani, K., Imaoka, J., Yamamoto, M. & Hiraki, E., May 24 2019, 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019. Institute of Electrical and Electronics Engineers Inc., p. 1408-1414 7 p. 8722190. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; vol. 2019-March).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Inductance
Bandwidth
Magnetic cores
Resonant circuits
Electric network topology

Feasibility study of fractal-fin heat sink for improving cooling performance of switching power converters

Ikegami, S., Umetani, K., Hiraki, E., Sakai, S. & Higashino, S., Jan 14 2019, 2018 IEEE International Telecommunications Energy Conference, INTELEC 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8612377. (INTELEC, International Telecommunications Energy Conference (Proceedings); vol. 2018-October).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fins (heat exchange)
Heat sinks
Power converters
Fractals
Cooling