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All Technical Committee Conferences (Searched in: All Years)
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Search Results: Conference Papers |
Conference Papers (Available on Advance Programs) (Sort by: Date Descending) |
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Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
EE, IEE-SPC (Joint) |
2021-03-01 15:30 |
Online |
Online |
Modeling Method for Large Amplitude Fluctuation Characteristics of LLC Current Resonant Converter Using Linear Parameter-Varying (LPV) Plants Hideaki Funaki, Yuichi Noge, Masahito Shoyama (Kyushu Univ.), Yu Yonezawa, Yoshiyasu Nakashima (FUJITSU Advanced Technologies) EE2020-41 |
(To be available after the conference date) [more] |
EE2020-41 pp.7-12 |
EE |
2021-01-25 10:55 |
Online |
Online (Zoom) |
Aged Deterioration Detection of DC-DC Converter Yasuyuki Koga (NiAS), Yudai Furukawa (Fukuoka University), Kazuhiro Kajiwara, Nobumasa Matsui, Fujio Kurokawa (NiAS), Yoshiyasu Nakashima, Yu Yonezawa (FUJITSU Advanced Technology) EE2020-27 |
In recent years, information and communication services have continued to develop, and the power supply is one of their ... [more] |
EE2020-27 pp.22-26 |
EE, WPT, IEE-SPC |
2018-07-02 10:15 |
Hokkaido |
Hokkaido University |
Automatic Derivation Method for Transfer Function of LLC Current Resonant Converter Using Numerical Calculation Takuma Sagara, Masahito Shoyama (Kyushu Univ.), Yu Yonezawa, Yoshiyasu Nakashima (Fujitsu laboratories) EE2018-11 |
The authors previously proposed derivation method for LLC current resonant converter by using numerical calculation. Ho... [more] |
EE2018-11 pp.17-22 |
EE |
2018-01-29 15:30 |
Oita |
Satellite Campus Oita |
[Special Talk]
Building a Model-Based Development Environment for Digitally Controlled Power Supplies Yu Yonezawa, Hiroshi Nakao, Yoshiyasu nakashima (Flab.) EE2017-62 |
[more] |
EE2017-62 pp.115-120 |
EE |
2018-01-30 13:35 |
Oita |
Satellite Campus Oita |
Failure Prediction Using Low Stability Phenomenon of Digitally Controlled SMPS by Electrolytic Capacitor ESR Degradation Hiroshi Nakao, Yu Yonezawa, Yoshiyasu Nakashima (Fujitsu LAB), Fujio Kurokawa (NiAS) EE2017-71 |
Electrolytic capacitors are known as one of the highest failure rate components in switching mode power supply SMPS). We... [more] |
EE2017-71 pp.165-170 |
EE |
2017-01-27 10:30 |
Nagasaki |
Nagasaki University |
Derivation of Transfer Function of LLC Current Resonant Converter Using Numerical Computation Yusuke Yamashita, Jun Imaoka, Masahito Shoyama (Kyushu Univ.), Yu Yonezawa, Yoshiyasu Nakashima (Fujitsu lab) EE2016-79 |
[more] |
EE2016-79 pp.163-168 |
EE |
2016-01-29 13:00 |
Fukuoka |
KURUME HOTEL ESPRIT |
Building a Model-Based Development Environment for Digitally Controlled Power Supplies Yu Yonezawa, Tomotake Sasaki (Fujitsu Labs.), Hisato Hosoyama, Atsushi Manabe (FATEC), Hiroshi Nakao, Takahiko Sugawara, Yoshiyasu Nakashima (Fujitsu Labs.) EE2015-23 |
[more] |
EE2015-23 pp.85-90 |
EE |
2016-01-29 13:20 |
Fukuoka |
KURUME HOTEL ESPRIT |
Anomaly Detection Technique of Duty Ratio in Switching Mode Power Supply Circuit Takahiko Sugawara, Yu Yonezawa, Hiroshi Nakao, Yoshiyasu Nakashima (FUJITSU LAB. LTD.) EE2015-24 |
In this report, we suggest the technique to improve the reliability of the power supply with multiplexing an overcurrent... [more] |
EE2015-24 pp.91-96 |
EE |
2014-01-23 14:45 |
Miyazaki |
MIYAZAKI KANKO HOTEL |
Dead-Time Controlled Digital-PSU for Server and Automatic Optimization Method of its Dead-Time Table Suitable for Mass-Production Hisato Hosoyama (FUJITSU Advanced Technologies), Yu Yonezawa (FUJITSU LAB), Atsushi Manabe (FUJITSU Advanced Technologies), Tomotake Sasaki, Yoshinobu Matsui (FUJITSU LAB) EE2013-34 |
To produce the high efficiency power supply for the server, the authors applied a dead-time control method with a digita... [more] |
EE2013-34 pp.19-23 |
EE |
2014-01-24 13:25 |
Miyazaki |
MIYAZAKI KANKO HOTEL |
Efficiency Improvement of Switching Power Supply with Transient Current Circuit Using Digital Control Haruomi Takashita, Masahito Shoyama (Kyushu Univ), Yu Yonezawa, Yoshiyasu Nakashima (Fujitsu Lab) EE2013-46 |
The more Miniaturization of switching power supplies is required with the background of the annual miniaturization of el... [more] |
EE2013-46 pp.91-96 |
ICD, ITE-IST |
2012-07-26 10:20 |
Yamagata |
Yamagata University |
[Invited Talk]
Technology trend of high efficiency power supply Yoshiyasu Nakashima, Hiroshi Nakao, Yu Yonezawa, Takahiko Sugawara, Takeshi Horie (FUJITSU LABO) ICD2012-20 |
Recently, rapid increase of energy consumption used in large scale data centers becomes serious problem and energy savin... [more] |
ICD2012-20 pp.7-11 |
EE |
2012-01-25 15:15 |
Nagasaki |
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Loss analysis for Buck Converters with Transient Current Circuit Ruofeng LIU, Masahito Shoyama (Kyushu Univ.), Yu Yonezawa, Yoshiyasu Nakashima (FUJITSU LAB) EE2011-41 |
[more] |
EE2011-41 pp.59-63 |
EE |
2011-01-27 15:20 |
Kumamoto |
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Proposal of a loss less snubber for Flyback converter Yu Yonezawa, Yoshiyasu Nakashima, Takahiko Sugawara, Hiroshi Nakao, Toshio Sugimoto (Fujitsu Labs.) EE2010-28 |
In recent years laptop computers are getting smaller and miniaturization of an AC adaptor is required. Filter components... [more] |
EE2010-28 pp.1-4 |
EE |
2010-01-21 15:00 |
Fukuoka |
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ZCS Buck Converter with Transient Current Circuit Shinya Hiromitsu, Mariko Ogawa, Seiya Abe, Masahito Shoyama (Kyushu Univ.), Yu Yonezawa (FUJITSU LAB.) EE2009-36 |
Recent years, in order to reduce size and weight of power supply unit, high frequency operation is required. However, t... [more] |
EE2009-36 pp.1-5 |
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