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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EE | 2024-01-18 15:55 |
Kagoshima | (Primary: On-site, Secondary: Online) |
[Memorial Lecture]
Switching Power Supply and Power Electronics Masahito Shoyama (Kyushu Univ.)  EE2023-45 |
The author has been conducting research on switching power supplies at Kyushu University, an educational and research in... [more] | EE2023-45 pp.31-36 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2023-10-20 09:20 |
Yamagata | Yamagata University (Primary: On-site, Secondary: Online) |
Load-Independent Class-E Inverter Design Focusing on External Quality Factor Akihiko Ishiwata, Yasumasa Naka, Masaya Tamura (Toyohashi Univ. of Tech.) EMCJ2023-57 MW2023-111 EST2023-84 |
The Load-Independent ZVS Class-E Inverter has attracted attention as a power supply circuit for WPT systems. The inverte... [more] | EMCJ2023-57 MW2023-111 EST2023-84 pp.113-118 |
| EMCJ, IEE-EMC, IEE-SPC | 2023-05-12 16:30 |
Okinawa | (Primary: On-site, Secondary: Online) |
Intensity of electromagnetic noise of a deteriorated power unit Fumihiko Ishiyama (NTT) EMCJ2023-9 |
We are investigating countermeasure technique against electro-magnetic noise with our own method. We evaluated the inten... [more] | EMCJ2023-9 pp.17-20 |
| EMCJ, MW, EST, IEE-EMC [detail] | 2022-10-14 09:00 |
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 pp.83-86 |
| CAS, CS | 2022-03-03 14:15 |
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 pp.37-40 |
| NLP, MICT, MBE, NC (Joint) [detail] |
2022-01-21 12:10 |
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 pp.159-162 |
| SIP | 2021-08-24 13:00 |
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 pp.26-29 |
| EE, IEE-HCA | 2021-05-27 11:15 |
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 pp.31-36 |
| OPE, OCS, OFT (Joint) [detail] |
2021-02-19 11:40 |
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 15:45 |
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 pp.69-74 |
| EE | 2021-01-25 16:10 |
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 pp.75-80 |
| EMT, IEE-EMT | 2020-05-22 14:00 |
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 pp.19-24 |
| EE | 2020-01-15 14:05 |
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 pp.43-47 |
| EE | 2020-01-16 13:10 |
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 pp.129-134 |
| EE, OME, CPM | 2019-11-26 09:20 |
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 pp.1-6 |
| EE, IEE-HCA | 2019-05-16 13:30 |
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 pp.35-38 |
| WPT, EE (Joint) |
2018-10-03 11:45 |
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 pp.11-16 |
| EE, WPT, IEE-SPC | 2018-07-02 15:30 |
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 pp.77-82 |
| EE | 2018-01-29 14:40 |
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 pp.109-114 |
| MWP, OPE, EMT, MW, EST, IEE-EMT [detail] | 2017-07-21 11:00 |
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 pp.133-138 |
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