Concepedia

K. Hirachi

KH

18

Publications

377

Citations

12

H-Index

1998

Active since

Affiliations

GS Yuasa (Japan)(Current)

Yamaguchi University

The University of Tokyo

Oita University

K. Hirachi is an author at GS Yuasa (Japan) specializing in electrical engineering, engineering, and power electronics.

Top concepts

EngineeringElectrical EngineeringPower ElectronicsEnergy ManagementPower SystemsEnergy StorageRenewable EnergyEnergy ConversionComputer EngineeringSolar Power

Publications per year

1998–2006

18

Publications

18

Circuit configuration of bidirectional DC/DC converter specific for small scale load leveling system

K. Hirachi, M Yamanaka, K. Kajiyama et al. · 2003 · 55 citations

Engineering, Power Circuit, Energy Conversion +18

A novel small-scale UPS using a parallel redundant operation system

T. Iwade, Shinji Komiyama, Yoshihiko Tanimura et al. · International Telecommunications Energy Conference · 2003 · 36 citations

Redundant Operation, Electrical Engineering, Engineering +10

Development of UPS using new type of circuits

K. Hirachi, M. Sakane, S. Niwa et al. · 2002 · 34 citations

Engineering, New Type, Energy Conversion +19

Switched-mode PFC rectifier with high-frequency transformer link for high-power density single phase UPS

K. Hirachi, J. Yoshitsugu, Koki Nishimura et al. · 2002 · 34 citations

Electrical Engineering, Engineering, High-frequency Transformer Link +10

Cost-effective practical developments of high-performance and multi-functional UPS with new system configurations and their specific control implementations

K. Hirachi, M. Sakane, Teppei Matsui et al. · 2002 · 29 citations

Engineering, New System Configurations, Energy Conversion +23

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