Research activities -DC/DC converter-

Original paper
  • H. N. Le, J. Itoh: "Wide-Load-Range Efficiency Improvement for High-Frequency SiC-Based Boost Converter with Hybrid Discontinuous Current Mode", IEEE Transactions on Power Electonics, Vol. 33, No. 2, pp. 1843-1854 (2017)
  • H. N. Le, K. Orikawa, J. Itoh: "Circuit-Parameter-Independent Nonlinearity Compensation for Boost Converter Operated in Discontinuous Current Mode", IEEE Transactions on Industrial Electronics, Vol. 64, No. 2, pp. 1157-1166 (2017)
  • A. B. Ponniran, K. Orikawa, J. Itoh: "Fundamental Operation of Modular Marx Topology for High Boost Ratio DC-DC Converter", IEEJ Transactions on Industry Applications, Vol. 5, No. 4, pp. 329-338 (2016)
  • A. B. Ponniran, K. Orikawa, J. Itoh: "Minimization of Passive Components in Multi-level Flying Capacitor DC-DC Converter", IEEJ Journal of Industry Applications, Vol. 5, No. 1, pp. 10-11 (2016)
  • Asmarashid Bin Ponniran, Koichi Matsuura, Koji Orikawa, Jun-ichi Itoh: "Size Reduction of DC-DC Converter using Flying Capacitor Topology with Small Capacitance", IEEJ Journal of Industry Applications, Vol. 3, No. 6, pp. 446-454 (2014)
  • S. Miyawaki, J. Itoh, K. Iwaya: "A Bidirectional Isolated DC/DC Converter using Series Voltage Compensation", IEEJ Trans. D, Vol. 133, No. 9, pp. 876-884 (2013)
  • Y. Kashihara, J. Itoh: "Parformance Evaluation among Four types of Five-level Topologies using Pareto Front Curves", IEEE Energy Conversion Congress and Exposition,pp. 1296-1303 (2013)
  • S. Miyawaki, J. Itoh, K. Iwaya: "Design Procedure Based on Loss Analysis for a Current Resonant Type Half-Bridge Converter", IEEJ Trans. D, Vol. 133, No. 3, pp. 360-367 (2013)
  • K. Orikawa, J.Itoh: "Principle of Surge Voltage of a Rectifier in Isolated DC-DC Converters and Snubber Circuit Design Method", IEEJ Trans. D, Vol. 133, No. 3, pp. 350-359 (2013)
  • S. Miyawaki, J. Itoh, K. Iwaya: "High Efficiency Isolated DC/DC Converter using Series Connection on Secondary Side", IEEJ Trans. D, Vol. 131, No. 10, pp. 1175-1183 (2011)
  • K. Orikawa, J. Itoh: "Development of a Series-Parallel Compensation-Type DC-DC Converter", IEEJ Trans. D, Vol. 130, No. 6, pp. 752-759 (2010)
  • S. Miyawaki, J. Itoh, K. Iwaya: "High Efficiency isolated DC/DC Converter Using Series Voltage Compensation", IEEJ Trans. D, Vol. 130, No. 1, pp. 43-50 (2009)
    • International conference
  • Yasuo Uchida, Hiroki Watanabe, Jun-ichi Itoh: ""Resonance Current Suppression for AC-DC Active-Clamp Flyback Converter by Triangular Current Mode"", IEEE Applied Power Electronics Conference and Exposition 2025, Vol. , No. , pp. (2025)
  • T. Ohno, R. Kusui, H. Watanabe, J. Itoh: "Light Load Efficiency Improvement of Flying Capacitor-type Current-Fed DAB Converter for 1500V DC-grid", The 5th IEEE International Conference on DC Microgrids, Vol. , No. , pp. 272-277 (2023)
  • Takumi Iwamoto, Koki Yamanokuchi, Hiroki Watanebe, Jun-ichi Itoh: "Series/Parallel Connection Method of DC-DC Transformer for Scalable Power Converter Systems using USPM", EPE'23 ECCE Europe, Vol. , No. 482, pp. (2023)
  • T.Ohno, H. Watanabe, J. Itoh: "Wide Range Multi-level DC-DC Converter with TCM for High Voltage Applications", 11th International Conference on Power Electronics -ECCE Asia, Vol. , No. , pp. (2023)
  • T. Shioi, M. Miyashita, S. Nagai, K. Kusaka, J. Itoh, T. Nakanishi, K. Kobayashi: "Battery Management System with Flying Capacitor Converter Operated in Discontinuous Current Mode", 20th International Symposium POWER ELECTRONICS Ee2019, Vol. , No. T1.4-7, pp. (2019)
  • H. Higa, H. Watanabe, K. Kusaka, J. Itoh: "Voltage Control Method with Non-linear Compensation and DC-Offset Elimination for One-leg T-type Dual Active Bridge Converter using Multi-Operation Mode", Energy Conversion Congress Exposition 2019, pp. 6828-6835 (2019)
  • J. Itoh, R. Iso, H. Watanabe: "Voltage Unbalance Compensation Method with Zero Voltage Switching for Series Connected Switching Devices", ICPE 2019 ,ThF1-4 (2019)
  • J. Itoh, K. Kawauchi, H. Watanabe, K. Kusaka: "Voltage Control Method in Non-linear Dead-time Effect Region for Dual Active Bridge DC-DC Converter", ICPE 2019 , Vol. , No. , pp. (2019)
  • J. Itoh, R. Ishibashi, K. Kusaka: "Control Method of Flying Capacitor Converter Operated in Discontinuous Current Mode for High Voltage Photovoltaic Cell", 6th International Conference On Smart Grid, Vol. , No. 68, pp. (2018)
  • J. Itoh, R. Ishibashi, K. Kusaka: "Control Method of Flying Capacitor Converter Operated in Discontinuous Current Mode for High Voltage Photovoltaic Cell", 6th International Conference On Smart Grid, Vol. , No. 68, pp. (2018)
  • J. Itoh, K. Kawauchi, H. Watanabe: "Non-linear Dead-time Error Compensation Method of Dual Active Bridge DC-DC Converter for Variable DC-bus Voltage", 6th International Conference On Smart Grid, Vol. , No. , pp. (2018)
  • H. Higa, A. Sagawa, J. Itoh: "Improvement of Light Load Efficiency for Buck-Boost DC-DC converter with ZVS using Switched Auxiliary Inductors", The 2nd IEEE International Power Electronics and Application Conference and Exposition, Vol. TS7.31.1, No. KD0941, pp. (2018)
    • 【Excellent Paper Award】
  • J. Itoh, K. Kawauchi, H. Watanabe, K. Kusaka: "Reduction of Transmission Power Error and Current for Dual Active Bridge DC-DC Converter in Energy Storage Systems", 7th International Conference on Renewable Energy Research and Applications (ICRERA 2018), Vol. , No. , pp. (2018)
  • J. Itoh, K. Kawauchi, H. Higa: "Dead-time Compensation with DC Offset Current Elimination Method using Three-level Operation for Dual Active Bridge DC-DC Converter", Energy Conversion Congress Exposition 2018, Vol. , No. , pp. 6299-6306 (2018)
  • J. Itoh, R. Ishibashi, H. N. Le, N. Takaoka, K. Kusaka, K. Tanabe: "Control Method of Flying Capacitor Converter Operated in Discontinuous Current Mode and Critical Current Mode", Energy Conversion Congress Exposition 2018, Vol. , No. , pp. 155-161 (2018)
  • J. Itoh, K. Kawauchi, H. Higa: "Dead-time Compensation Method for Dual Active Bridge Converter with Three-level Operation", S2PC2017, Vol. , No. JP13, pp. (2017)
  • H. Higa, J. Itoh: "Achievement of Zero Voltage Switching at Light Load for Parallelly-Connected Dual Active Bridge Converter using Power-Circulating ", S2PC2017, Vol. , No. JP20, pp. (2017)
  • H.Higa, J. Itoh: "Extension of Zero-Voltage-Switching Range in Dual Active Bridge Converter by Switched Auxiliary Inductance", Energy Conversion Congress Exposition 2017, Vol. , No. 909, pp. 5324-5331 (2017)
  • H.Higa, J. Itoh: "Zero Voltage Switching over Entire Load Range and Wide Voltage Variation of Parallelly-Connected Dual-Active-Bridge Converter using Power-Circulating peration", International Future Energy Electronics Conference 2017-ECCE Asia, Vol. , No. 1273, pp. (2017)
  • H. N. Le, K. Orikawa, J. Itoh: "Zero-Voltage Switching for Bidirectional Buck/Boost Converter using Hybrid Discontinuous Current Mode", IEEE Workshop on Control and Modeling for Power Electronics, Vol. , No. P-41, pp. (2016)
  • H. N. Le, K. Orikawa, J. Itoh: "Clarification of Relationship between Current Ripple and Power Density in Bidirectional DC-DC Converter", The Applied Power Electronics Conference and Exposition 2016, pp. 1911-1918 (2016)
  • Hayato Higa, J. Itoh: "Derivation of Operation Mode for Flying Capacitor Topology Applied to Three-level DAB converter", IFEEC2015, Vol. , No. , pp. (2015)
  • A. B. Ponniran, K. Orikawa, J. Itoh: "Interleaved High Boost Ratio Marx Topology DC-DC Converter ", IFEEC2015, Vol. , No. 290451, pp. (2015)
  • A. B. Ponniran, K. Orikawa, J. Itoh: "Modular Multi-stage Marx Topology for High Boost Ratio DC/DC Converter in HVDC", INTELEC2015, Vol. , No. TS03-1, pp. (2015)
  • H.Higa, S.Takuma, K.Orikawa, J.Itoh: "Dual Active Bridge DC-DC Converter using Both Full and Half Bridge Topologies to Achieve High Efficiency for Wide Load", ECCE2015, Vol. , No. S118_1145, pp. (2015)
  • H. N. Le, K. Orikawa, J. Itoh: "Efficiency Improvement at Light Load in Bidirectional DC-DC Converter by Utilizing Discontinuous Current Mode", 17th Conference on Power Electronics and Applications, EPE’15-ECCE Europe, Vol. , No. DS1b-Topic 3-0484, pp. (2015)
  • Asmarashid Ponniran, K. Orikawa, J. Itoh: "Minimum Flying Capacitor for N-level Capacitor DC/DC Boost Converter", 9th International Conference on Power Electronics, Vol. , No. WeH2-1, pp. (2015)
  • J. Itoh, Hayato Higa, Tsuyoshi Nagano: "A Novel Control Method Focusing on Reactive Power for a Dual Active Bridge Converter ", IEEE International Power Electronics and Application Conference and Exposition, Vol. , No. TS.8.34.1, pp. (2014)
  • H. N. Le, K. Orikawa, J. Itoh: "DCM Control Method of Boost Converter based on Conventional CCM Control", The 2014 International Power Electronics Conference, Vol. , No. 21A4-5, pp. 3661-3666 (2014)
  • K. Orikawa, N. Takaoka, J. Itoh, K. Okamoto, N. Yamada: "Development of Micro DC-DC Converter Realizes High Efficiency and Temperature-Tolerance in CPV Module ", PVSEC23，6-P-48 (2013)
  • S. Miyawaki, J. Itoh, K. Iwaya: "Experimental Investigation and Loss Calculation for a Bi-directional Isolated DC/DC Converter using Series Voltage Compensation", APEC 2013, pp. 1931-1938 (2013)
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  • K. Orikawa, J. Itoh, Po-tai Cheng: "Design of Predictive Digital Current Control for Series-Parallel Compensation Type DC-DC Converter", TJSPC (2012)
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  • K. Orikawa, J. Itoh: "Analysis and Optimization Design of Snubber Circuit for Isolated DC-DC Converters in DC Power Grid", ICRERA (2012)
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  • S. Miyawaki, J. Itoh, K. Iwaya: "Comparing investigation for a Bi-directional Isolated DC/DC Converter using Series Voltage Compensation", APEC2012, No. 547 (2012)
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  • J. Itoh, K. Matsuura, K. Orikawa: "Reduction of a Boost Inductance using a Switched Capacitor DC-DC Converter", ICPE 2011 - ECCE Asia (2011)
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  • S. Miyawaki, J. Itoh, K. Iwaya: "Optimization design of an Isolated DC/DC Converter Using Series Compensation on the Secondary Side", IEEE ECCE2010, pp. 1428-1435 (2010)
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  • K. Orikawa, J. Itoh: "A Comparison of the Series-Parallel Compensation Type DC-DC Converters using both a Fuel Cell and a Battery", IEEE ECCE2010, pp. 1414-1421 (2010)
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  • S. Miyawaki, J. Itoh, K. Iwaya: "A High Efficiency Isolated DC/DC Converter Using Series Connection on Secondary Side", IPEC2010 (2010)
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  • K. Orikawa, J. Itoh: "Loss Evaluation of a Series-Parallel Compensation DC-DC Converter for a Small Fuel Cell System", INTELEC2009, No. PC1-4 (2009)
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  • K. Orikawa, J. Itoh: "High Efficiency DC-DC Converter using a Series-Parallel Compensation Method for a Fuel cell", EPE2009, No. DS1.9c-16 (2009)
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  • J. Itoh, S. Miyawaki, K. Iwaya: "High Efficiency Isolated DC/DC Converter using Series Voltage Compensation", PCIM, No. 66 (2009)
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  • J. Itoh, T. Fujii: "A New Approach for High Efficiency Buck-Boost DC/DC Converters Using Series Compensation", 39th annual Power Electronics Specialists Conference, pp.2109-2114, (2008)
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    Domestic conference
  • Asmarashid Ponniran, Koji Orikawa, Jun-ichi Itoh: "Design Methods of Inductor and Flying Capacitor for Multi-level Flying Capacitor Boost Converter", IEEJ Annual meeting, Vol. 4, No. 096, pp. 163-164 (2016)
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  • Asmarashin Ponniran, Koji Orikawa, Jun-ichi Itoh: "Modular Marx Topology for High Boost Ratio DC/DC Boost Converter", IEEJ Annual meeting, Vol. , No. 4-079, pp. 134-135 (2015)