井渕 貴章

Evaluation of EMI Noise Mitigation Design for Large-current SiC Power Modules based on Near Magnetic Field Scanning
Takaaki Ibuchi,Tsuyoshi Funaki
IEEJ Transactions on Industry Applications 144(6) 511-512 2024年06月 [査読有り]

An Experimental Study on Conducted EMI Characteristics of AC Home Appliances in DC Power Feed
Takaaki Ibuchi,Tsuyoshi Funaki
5th IEEE International Conference on DC Microgrids, ICDCM 2023 2023年11月 The power supply of recent home appliances comprises a rectifier and switching converter. In this st... [査読有り]

Transformerless Power Supply for AC Rail Vehicles
Tsuyoshi Funaki,Shuhei Fukunaga,Takaaki Ibuchi,Tenko Fukuda,Takashi Nakamura,Yuta Yanagisawa
IEEJ Transactions on Industry Applications 143(9) 636-643 2023年09月 This study develops a transformer-less power supply for AC railway vehicles. The rail on the permane... [査読有り]

SiC MOSFETとゲート駆動回路の温度特性がデッドタイムに与える影響の検討
二社谷一樹,井渕貴章,舟木剛
電気学会論文誌 D 142(7) 559-560 2022年 SiC MOSFETs are expected to be applied to wide temperature and high frequency applications. This let... [査読有り]

Noise-Source Model for Frequency-Domain EMI Simulation of a Single-Phased Power Circuit
Keita Takahashi,Takaaki Ibuchi,Tsuyoshi Funaki
IEEE Transactions on Electromagnetic Compatibility 63(3) 772-782 2021年06月 In recent years, power electronic converters have been downsized significantly by high-density packa... [査読有り]

2-port characterization and modeling of magnetic components for 10 mhz class-e inverters design
Shota Seki,Shuhei Fukunaga,Takaaki Ibuchi,Tsuyoshi Funaki
IEEJ Transactions on Fundamentals and Materials 141(5) 317-326 2021年 This paper presents the equivalent circuit modeling method for magnetic components used in 10 MHz cl... [査読有り]

EMI noise source characterization for SiC and GaN power transistors in synchronous rectification DC-DC converter
Takaaki Ibuchi,Tsuyoshi Funaki
IEEJ Transactions on Fundamentals and Materials 140(12) 565-572 2020年12月 © 2020 The Institute of Electrical Engineers of Japan. Fast switching operation of Silicon carbide (... [査読有り]

EMI characterization for power conversion circuit with SiC power devices
Takaaki Ibuchi,Tsuyoshi Funaki
Proceedings of the Asian Test Symposium 2020-November 2020年11月 © 2020 IEEE. The fast switching characteristics of silicon carbide (SiC) power devices can be expect... [依頼有り]

Visualization of dynamic noise current distribution from Si and SiC power devices based on time-synchronized near magnetic field scanning
Takaaki Ibuchi,Tsuyoshi Funaki
Proceedings of the 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, EMC EUROPE 2020 2020年09月 © 2020 IEEE. This report studies the visualization of dynamic noise current distribution in switchin... [査読有り]

Frequency-Domain EMI Simulation of Power Electronic Converter with Voltage-Source and Current-Source Noise Models
Keita Takahashi,Takaaki Ibuchi,Tsuyoshi Funaki
IEICE TRANSACTIONS ON COMMUNICATIONS E102B(9) 1853-1861 2019年09月 The electromagnetic interference (EMI) generated by power electronic converters is largely influence... [査読有り]

Influence of gate drive circuit for power device on EMI noise characteristics in a phase-leg topology
Takaaki Ibuchi,Tsuyoshi Funaki
EMC Europe 2019 - 2019 International Symposium on Electromagnetic Compatibility 321-326 2019年09月 © 2019 IEEE. Fast and high-frequency switching operation of wide-bandgap power semiconductor devices... [査読有り]

ハーフブリッジ回路上側アームの過渡電圧測定におけるコモンモード電圧補償法
林 慧,舟木 剛,井渕 貴章
電子情報通信学会論文誌 B 102(3) 176-183 2019年03月 [査読有り]

Mode decomposition of conducted noise voltage with synchronized vector signal measurement
Kei Hayashi,Shunji Mori,Takaaki Ibuchi,Tsuyoshi Funaki
IEICE COMMUNICATIONS EXPRESS 8(3) 67-72 2019年 This paper proposes an evaluation method for common mode (CM) and differential mode (DM) of conducte... [査読有り]

Experimental Evaluation on Noise Characteristics in SiC-Based Synchronous Boost Converter
Takaaki Ibuchi,Tsuyoshi Funaki
IEEE International Symposium on Electromagnetic Compatibility 2018-August 613-618 2018年10月 © 2018 IEEE. Fast switching operation of Silicon carbide (SiC) power semiconductor devices could lea... [査読有り]

Visualization of noise current propagation in a power module with scanning time-synchronized near magnetic field measurement
Takaaki Ibuchi,Eisuke Masuda,Tsuyoshi Funaki
IEICE ELECTRONICS EXPRESS 15(18) 2018年09月 This study investigates noise current propagation in a power module accompanied with its switching o... [査読有り]

Experimental evaluation of mutual coupling influence on the isolation characteristics of a dual-port v-type line impedance stabilization network
Takaaki Ibuchi,Shunji Mori,Tsuyoshi Funaki
IEEE Electromagnetic Compatibility Magazine 7(1) 39-45 2018年 © 2012 IEEE. This research investigates the influence of parasitic coupling on the dual-port V-type ... [査読有り]

A study on parasitic inductance reduction design in GaN-based power converter for high-frequency switching operation
Takaaki Ibuchi,Tsuyoshi Funaki
2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE 2017, EMC Europe 2017 2017年11月 © 2017 IEEE. This report studies the influence of printed circuit board (PCB) design on voltage over... [査読有り]

A study on packaging design of SiC power module using near-field magnetic scanning techniques
Takaaki Ibuchi,Eisuke Masuda,Tsuyoshi Funaki,Hirotaka Otake,Tatsuya Miyazaki,Yasuo Kanetake,Takashi Nakamura
2017 IEEE International Workshop on Integrated Power Packaging, IWIPP 2017 2017年05月 © 2017 IEEE. This report focuses the current distribution in a module identifiedwith magnetic near-f... [査読有り]

SiCショットキーバリアダイオードの非導通時ESR特性がDC-DCコンバータの伝導性EMIノイズに与える影響評価
井渕 貴章,舟木 剛
電子情報通信学会論文誌 B 100(3) 149-157 2017年03月 [査読有り]

Visualization of noise current distribution in an SiC power module using near-field magnetic scanning
Takaaki Ibuchi,Eisuke Masuda,Tsuyoshi Funaki,Hirotaka Otake,Tatsuya Miyazaki,Yasuo Kanetake,Yutaka Sawa,Takashi Nakamura
IEICE COMMUNICATIONS EXPRESS 6(10) 584-589 2017年 This report investigates noise current distribution in the switching operation of a silicon carbide ... [査読有り]

A comparative study on conducted noise characteristics of SiC and GaN power transistor
Takaaki Ibuchi,Tsuyoshi Funaki
IEEE International Symposium on Electromagnetic Compatibility 2016-November 193-198 2016年 © 2016 IEEE. Wide-bandgap power devices such as those made from silicon carbide (SiC) and gallium ni... [査読有り]

Conducted noise of GaN Schottky barrier diode in a DC-DC converter
Takaaki Ibuchi,Tsuyoshi Funaki,Shinji Ujita,Masahiro Ishida,Tetsuzo Ueda
IEICE ELECTRONICS EXPRESS 12(24) 2015年12月 Wide-bandgap power devices such as those made from silicon carbide (SiC) and gallium nitride (GaN) o... [査読有り]

Conducted emission characteristics of CCM boost converter with SiC schottky barrier diode
Takaaki Ibuchi,Tsuyoshi Funaki
IEEE International Symposium on Electromagnetic Compatibility 2015-Septmber 1012-1017 2015年09月 © 2015 IEEE. The ringing oscillation in turn-off of diode may induce electromagnetic interference (E... [査読有り]

大阪に建つ日本一の超高層ビル—「あべのハルカス」における最先端設備—
舟木 剛,井渕 貴章,中野 善大,吉竹 徹真,上小牧 隆磨,林 慧,杉木 勝哉
電気学会誌 135(3) 131-134 2015年 1．はじめに 聖徳太子が建立した1400年の伝統を誇る四天王寺の近くにそびえ立つ高さ300mの日本一高い超高層ビルが，2014 (平成26) 年3月にグランドオープンしたばかりの「あべ

Time and frequency mixed-domain analysis o conducted emissions for types of diode
Takaaki Ibuchi,Tsuyoshi Funaki
IEICE COMMUNICATIONS EXPRESS 4(5) 136-142 2015年 Electromagnetic interference (EMI) noise in time and frequency mixed domains is analyzed to understa... [査読有り]

Experimental evaluation on time variation of conducted noise spectrum for a PFC converter
Takaaki Ibuchi,Ryuma Kamikomaki,Tsuyoshi Funaki
IEEE International Symposium on Electromagnetic Compatibility 2014-December 69-72 2014年12月 © 2014 The Institute of Electronics, Information and Communication Engineer. Power factor correction... [査読有り]

Effect of diode characteristics on conducted noise spectrum in CCM boost converter
Takaaki Ibuchi,Tsuyoshi Funaki
IEEE International Symposium on Electromagnetic Compatibility 59-64 2014年10月 © 2014 IEEE. This paper aimed at modeling EMI noise source of the continuous current mode (CCM) DC-D... [査読有り]

Experimental Evaluation on Time Variation of Conducted Noise Spectrum for a PFC Converter
Takaaki Ibuchi,Ryuma Kamikomaki,Tsuyoshi Funaki
2014 INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, TOKYO (EMC'14/TOKYO) 69-72 2014年 Power factor correction (PFC) converters are commonly used at the first stage in single-phase switch... [査読有り]

Effect of diode operating temperature on conducted-noise spectrum for CCM DC–DC boost converter
Ibuchi Takaaki,Funaki Tsuyoshi
IEICE Communications Express 3(9) 269-274 2014年 This study focuses on the effect of diode operating temperature on the conducted noise, induced by t... [査読有り]

Loss and conducted noise characteristics for CCM PFC circuit with SiC-Schottky barrier diode
Ibuchi Takaaki,Funaki Tsuyoshi
IEICE Electronics Express 11(6) 20140142-20140142 2014年 Active power-factor correction (PFC) circuits are commonly used in the first stage of single-phase A... [査読有り]

A study on copper loss minimization of air-core reactor for high frequency switching power converter
Takaaki Ibuchi,Tsuyoshi Funaki
2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013 - Conference Proceedings 2013年 The volume and weight of a power conversion circuit depend considerably on magnetic components. Air-... [査読有り]

Validation of the air-core inductor copper loss model for high-frequency power conversion applications
Takaaki Ibuchi,Tsuyoshi Funaki
IEEE International Symposium on Electromagnetic Compatibility 561-566 2013年 A simple analytical copper loss model for inductor is preferred for the design of low-loss and downs... [査読有り]

A study on EMI noise source modeling with current source for power conversion circuit
Takaaki Ibuchi,Tsuyoshi Funaki
International Symposium on Electromagnetic Compatibility, EMC EUROPE 2012 2012年09月 [査読有り]

A study on modeling of dynamic characteristics of circuit component in TDR measurement based on Prony analysis
Ibuchi Takaaki,Funaki Tsuyoshi
IEICE Electronics Express 8(18) 1534-1540 2011年 Identification and modeling of parasitic components in power electronics circuit has become a notabl... [査読有り]