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K. Hirachi

Circuit configuration of bidirectional DC/DC converter specific for small scale load leveling system
2003 · K. Hirachi, M. Yamanaka, et al. · Power Conversion Conference · 55
A novel small-scale UPS using a parallel redundant operation system
2003 · T. Iwade, Shinji Komiyama, et al. · International Telecommunications Energy Conference (INTELEC) · 39
Development of UPS using new type of circuits
2002 · K. Hirachi, M. Sakane, et al. · International Telecommunications Energy Conference (INTELEC) · 35
Switched-mode PFC rectifier with high-frequency transformer link for high-power density single phase UPS
2002 · K. Hirachi, J. Yoshitsugu, et al. · IEEE Power Electronics Specialists Conference (PESC) · 34
Cost-effective practical developments of high-performance and multi-functional UPS with new system configurations and their specific control implementations
2002 · K. Hirachi, M. Sakane, et al. · IEEE Power Electronics Specialists Conference (PESC) · 29
Characteristics of a novel energy transmission for a rechargeable cardiac pacemaker by using a resonant DC-DC converter
2002 · T.H. Nishimura, K. Hirachi, et al. · Annual Conference of the IEEE Industrial Electronics Society (IECON) · 25
A large air gap flat transformer for a transcutaneous energy transmission system
2002 · T.H. Nishimura, T. Eguchi, et al. · IEEE Power Electronics Specialists Conference (PESC) · 24
Cost-effective bidirectional chopper-based battery link UPS with common input-output bus line and its control scheme
2002 · K. Hirachi, A. Kajiyama, et al. · Annual Conference of the IEEE Industrial Electronics Society (IECON) · 22
Utility-interactive multi-functional bidirectional converter for solar photovoltaic power conditioner with energy storage batteries
2002 · K. Hirachi, T. Mii, et al. · Annual Conference of the IEEE Industrial Electronics Society (IECON) · 14
A specific control implementation on back-type active power filtering converters
2002 · K. Hirachi, T. Iwade, et al. · International Telecommunications Energy Conference (INTELEC) · 14
Pulse area modulation control implementation for single-phase current source-fed inverter for solar photovoltaic power conditioner
2005 · K. Hirachi, M. Ishitobi, et al. · IEEE International Conference on Power Electronics, Drives and Energy Systems · 12
Improved control strategy to eliminate the harmonic current components for single-phase PWM current source inverter
2002 · K. Hirachi, Y. Tomokuni · Power and Energy Systems in Converging Markets · 12
Practical development of a high-performance UPS with a novel buck-boost chopper circuit
2002 · M. Yamanaka, M. Sakane, et al. · International Telecommunications Energy Conference (INTELEC) · 12
Improved control implementation of single-phase current-fed PWM inverter for photovoltaic power generation
1998 · K. Hirachi · International Conference on Power Electronics and Variable Speed Drives (PEVD) · 11
UPS circuit configuration incorporating buck-boost chopper circuit with two magnetically coupled coils
2003 · K. Hirachi, M. Nakaoka · Electronics Letters · 10
A novel control strategy on single-phase PWM current source inverter incorporating pulse area modulation
2002 · K. Hirachi, Y. Tomokuni · Power Conversion Conference · 10
Improved control strategy on buck-type PFC converter
1998 · K. Hirachi, M. Nakaoka · Electronics Letters · 10
A novel 3 kVA UPS using a switch mode rectifier
2002 · K. Hirachi, H. Yamamoto, et al. · International Telecommunications Energy Conference (INTELEC) · 8
Soft switching PWM DC-DC flyback converter with transformer - assisted pulse current regenerative passive resonant snubbers
2004 · C.Y. Inaba, Y. Konishi, et al. · International Conference on Power Electronics and Drive Systems · 7
A novel distributed control scheme for the parallel operation of digital controlled UPS
2004 · Yadong Liu, Yan Xing, et al. · Annual Conference of the IEEE Industrial Electronics Society (IECON) · 7
Circuit configuration of PFC converter and specific control implementation
2003 · K. Hirachi, M. Nakaoka · Electronics Letters · 6
A quasi-resonant PWM converter with high quality input waveforms and high efficiency
2002 · K. Taniguchi, T. Yoshikawa, et al. · IEEE Power Electronics Specialists Conference (PESC) · 6
Feasible developments of utility-interactive multi-functional bidirectional converter for solar photovoltaic generating system incorporating storage batteries
2002 · K. Hirachi, M. Yamanaka, et al. · IEEE Power Electronics Specialists Conference (PESC) · 6
Practical performance evaluations on an improved circuit topology of active three-phase PFC power converter
2002 · K. Nishimura, K. Atsuumi, et al. · Conference proceedings/Conference proceedings - IEEE Applied Power Electronics Conference and Exposition · 6
Novel PFC converter suitable for engine-drivengenerator-interactive three-phase power systems
1999 · K. Hirachi, M. Nakaoka · IEE Proceedings - Electric Power Applications · 6
Works count: 46
Citation count: 464
H-index: 12
I10-index: 17
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