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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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Committee Date Time Place Paper Title / Authors Abstract Paper #
EMCJ, MW, EST, IEE-EMC [detail] 2022-10-14
Akita Akita University
(Primary: On-site, Secondary: Online)
Electromagnetic noise of coupled switching power supplies through power line
Fumihiko Ishiyama (NTT) EMCJ2022-51 MW2022-97 EST2022-61
We are investigating countermeasure technique against electro-magnetic noise. We applied our method to the analysis of ... [more] EMCJ2022-51 MW2022-97 EST2022-61
CAS, CS 2022-03-03
Online Online Noise analysis of nonlinearly coupled circuits
Fumihiko Ishiyama (NTT) CAS2021-80 CS2021-82
We are investigating countermeasure technique against electro-magnetic noise. We applied our method to the analysis of e... [more] CAS2021-80 CS2021-82
(Joint) [detail]
Online Online Analysis of nonlinearly mixed noise
Fumihiko Ishiyama (NTT) NLP2021-107 MICT2021-82 MBE2021-68
We are investigating countermeasure technique against electro-magnetic noise. We applied our method to the analysis of e... [more] NLP2021-107 MICT2021-82 MBE2021-68
SIP 2021-08-24
Online Online Analysis of mixed switching noise
Fumihiko Ishiyama (NTT) SIP2021-34
We are investigating countermeasure technique against electro-magnetic noise by investigating our own method. We applied... [more] SIP2021-34
EE, IEE-HCA 2021-05-27
Online Online [Memorial Lecture] Switched Mode Power Supply and Power Elevtronics
Masahito Shoyama (Kyushu Univ.) EE2021-6
In this paper, we will introduce some research examples related to "Research and education on switching power supplies f... [more] EE2021-6
(Joint) [detail]
Online Online Proposal of Remote Operated Optical Fiber Switching Node for Future Optical Access Network
Tatsuya Fujimoto, Kawano Tomohiro, Kazuhide Nakae, Hiroshi Watanabe, Kazunori Katayama (NTT) OFT2020-67 OPE2020-88
We are studying concatenated loop topology as optical access network for beyond 5G with excellent reliability, tolerance... [more] OFT2020-67 OPE2020-88
pp.54-57(OFT), pp.59-62(OPE)
EE 2021-01-25
Online Online (Zoom) High-Order Harmonics-involved Frequency Domain Analysis on a Current-fed Snubber-less ZCS Step-Up DC-DC Converter
Ryusei Miyazaki, Tomokazu Mishima (Kobe Univ.) EE2020-36
Recently, the installation of smart grids has been actively promoted from the viewpoint of stabilizing power supply and ... [more] EE2020-36
EE 2021-01-25
Online Online (Zoom) Current resonance type soft switching converter using Cockcroft-Walton circuit
Eita Morii, Kazuki Mine, Yuichi Noge, Masahito Shoyama (Kyushu Univ.) EE2020-37
A high step-up ratio isolated DC-DC converter using a step-up transformer and a Cockcroft-Walton (CW) circuit is used fo... [more] EE2020-37
EMT, IEE-EMT 2020-05-22
Tokyo Tokyo Metropolitan Univ., Akihabara Satellite Campus
(Cancelled but technical report was issued)
Efficiency measurements and comparisons for the class E rectifier circuit in AM wave
Takuya Komatsu, Keitaro Omua, Norimasa Nakashima (FIT) EMT2020-4
Energy harvesting is expected in infrastructure management and IoT (Internet of Things) as a battery-less power supply. ... [more] EMT2020-4
EE 2020-01-15
Kagoshima HOUZAN HALL Examination of application of Direct Digital Synthesizer for digitally controlled power supply
Mami Tomohiro, Seiya Abe, Satoshi Matsumoto (Kyutech) EE2019-56
One of the effective approaches to miniaturize the power supply is increasing the switching frequency. Recently, Power S... [more] EE2019-56
EE 2020-01-16
Kagoshima HOUZAN HALL Current resonant soft switching converter using Cockcroft-Walton circuit
Eita Morii, Masahito Shoyama, Otuka Ryota (Kyushu Univ.) EE2019-71
The power circuit of the X-ray irradiation device uses a high step-up ratio insulated DC-DC converter using a step-up tr... [more] EE2019-71
EE, OME, CPM 2019-11-26
Tokyo Japan Society for the Promotiton of Machine Industry Feasibility Study of Variable Voltage Sources for IGBT Drive Circuits
Kazuto Ura, Yoichi Ishizuka (Nagasaki Univ.) EE2019-36 CPM2019-78 OME2019-22
High-power / high-voltage converters are used in housings for industrial and automotive applications, and insulated gate... [more] EE2019-36 CPM2019-78 OME2019-22
EE, IEE-HCA 2019-05-16
Tokyo Kikai-Shinko-Kaikan Bldg. Automatic notch generation and conversion voltage ratio analysis in pulse coding control switching converter
Yifei Sun, Minhtri Tran, Yasunori Kobori, Anna Kuwana, Haruo Kobayashi (Gunma Univ) EE2019-7
This paper proposes an EMI spread spectrum technology with automatically setting the notch frequency using the pulse cod... [more] EE2019-7
Kyoto Kyoto Univ. Uji Campus Improvement of Efficiency in High Frequency Using Soft Switching MVAC Converter
Daiki Nagashima, Masahito Shoyama (Kyushu Univ.), Mitsuru Sato, Shingo Nagaoka (OMRON Corp.) EE2018-20
In recent years, the power conversion circuit has been used in a wide range of applications, and further miniaturization... [more] EE2018-20
EE, WPT, IEE-SPC 2018-07-02
Hokkaido Hokkaido University [Special Talk] Trends in High Frequency Switching Power Supplies for Consumer Electronics and Renewable Energy Management Systems
Satoshi Ikeda (Panasonic), Fujio Kurokawa (NiAS) EE2018-13
The biggest challenge in switching power supplies is their miniaturization and weight saving. For some time, the key to ... [more] EE2018-13
EE 2018-01-29
Oita Satellite Campus Oita [Special Talk] Conducted Noise Generation Mechanism and Its Reduction Technology in Switching Power Supplies
Masahito Shoyama (Kyushu Univ.) EE2017-61
Switching power supply circuits have salient features of small size, light weight and high efficiency, and so they were ... [more] EE2017-61
MWP, OPE, EMT, MW, EST, IEE-EMT [detail] 2017-07-21
Hokkaido Obihiro Chamber of Commerce and Industry An 80MHz Modulation Bandwidth High Efficiency Multi-band Envelope-Tracking Power Amplifier Using GaN Single-Phase Buck-Converter
Shuichi Sakata (Mitsubishi Electric), Sandro Lanfranco, Tapio Kolmonen, Olli Piirainen (Nokia Bell Labs), Takanobu Fujiwara, Shintaro Shinjo (Mitsubishi Electric), Peter Asbeck (Univ. of California, San Diego) EMT2017-31 MW2017-56 OPE2017-36 EST2017-33 MWP2017-33
We report a high efficiency multi-band Envelope-Tracking Power Amplifier (ET-PA) that supports modulation bandwidth up t... [more] EMT2017-31 MW2017-56 OPE2017-36 EST2017-33 MWP2017-33
EE 2017-01-27
Nagasaki Nagasaki University 1MHz Flyback Converter with Tri-State Control
Hayato Yamaoka, Akinori Hariya, Yoichi Ishizuka (Nagasaki Univ.) EE2016-86
An effective downsizing technique for Switching Mode Power Supply (SMPS) is raising the switching frequency. Fortunately... [more] EE2016-86
EE 2017-01-27
Nagasaki Nagasaki University Output Characteristics of Peak Current Mode DC-DC Converter for Energy Management in Data Center
Yudai Furukawa, Shintaro Nibu, Fujio Kurokawa (Nagasaki Univ.), Ilhami Colak (Nisantasi Univ.) EE2016-87
The energy management for the data center has been required because of increasing power consumption in the information a... [more] EE2016-87
CAS, ICTSSL 2017-01-27
Tokyo Kikai-Shinko-Kaikan Bldg. Characterizing and modeling of switching power supply noise
Fumihiko Ishiyama, Farhan Mahmood, Yuichiro Okugawa, Kazuhiro Takaya (NTT) CAS2016-104 ICTSSL2016-58
We are investigating methods of countermeasure against electric noise on telecommunication lines and on power lines. Swi... [more] CAS2016-104 ICTSSL2016-58
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