低注入電力下での注入同期能力の最大化
慶田朗、矢部洋司、前多夏維、菅聡明、森史、関屋大雄、田中久陽
電子情報通信学会論文誌A, vol.J107-A, no.3, pp.47-55, May 2024.
[Abstract | pdf]

Load-Independent Class-E Frequency Multipliers
Yinchen Xie, Wenqi Zhu, Yutaro Komiyama, Ayano Komanaka, Akihiro Konishi, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
IEEE Transactions on Circuits and Systems I: Regular Papers,DOI: 10.1109/TCSI.2024.3369649, Feb. 2024.
[Abstract | pdf]

Analysis and Design of Load-Independent Series Resonant Power Amplifier With Constant Current Output and Its Application for WPT System
Yutaro Komiyama, Ayano Komanaka, Wenqi Zhu, Akihiro Konishi, Kien Nguyen, and Hiroo Sekiya
IEEE Transactions on Power Electronics, 2024., Feb. 2024.
[Abstract | pdf]

Analysis and Design of High-Frequency WPT System Using Load-Independent Inverter With Robustness Against Load Variations and Coil Misalignment
Yutaro Komiyama, Ayano Komanaka, Hiroaki Ota, Yuki Ito, Taichi Mishima, Takeshi Uematsu, Akihiro Konishi, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya
IEEE Access, doi: 10.1109/ACCESS.2024.3361029, Jan. 2024.
[Abstract | pdf]

Analysis and design of class-Φ22 wireless power transfer system
Weisen Luo, Xiuqin Wei, and Hiroo Sekiya
IEICE Transactions on Communications, vol.106, no.12, pp.1402-1410, Dec. 2023.
[Abstract | pdf]

Analysis of Load-Independent ZCS Parallel-Resonant Inverter With Constant Current
Wenqi Zhu, Yutaro Komiyama, Ayano Komanaka, Kien Nguyen, and Hiroo Sekiya
IEEE Transactions on Industrial Electronics, doi:10.1109/TIE.2023.3333019., Nov. 2023.
[Abstract | pdf]

Design procedure of load-independent class-E WPT systems and its application in robot arm
Hiroo Sekiya, Katsuki Tokano, Wenqi Zhu, Yutaro Komiyama, and Kien Nguyen
IEEE Transactions on Industrial Electronics, Nov. 2022.
[Abstract | pdf]

Energy-efficient VM opening algorithms for real-time workflows in heterogeneous clouds
Saiqin Long, Xin Dai, Tingrui Pei,Jiasheng Cao, Hiroo Sekiya, Young-June Choi
Neurocomputing, vol.483, pp.501-514, Nov. 2022.
[Abstract | pdf]

CellularFlow: Memristive circuits of gyrator neurons toward brain circuits
Mamoru Tanaka, Yoshifumi Nishio, Hiroo Sekiya, Masaki Bandai, Yuichi Tanji, and Yoko Uwate
IEEE Journal on Emerging and Selected Topics in Circuits and Systems 2022, Nov. 2022.
[Abstract | pdf]

Wireless Power Transfer System with Load-Independent Inverse Class-E Oscillator
Yutaro Komiyama, Shuya Matsuhashi, Wenqi Zhu, Taichi Mishima, Yuki Ito, Takeshi Uematsu, Kien Nguyen, Hiroo Sekiya
IEICE Nonlinear Theory and Its Application, vol. E13-N, no.2, pp.465-470, Apr. 2022.
[Abstract | pdf]

Load-independent inverse class-E ZVS inverter and its application to wireless power transfer systems
Ayano Komanaka,Wenqi Zhu,Xiuqin Wei,Kien Nguyen,Hiroo Sekiya
IET Power Electronics, pp.1-15, Mar. 2022.
[Abstract | pdf]

Generalized Analysis of Load-Independent ZCS Parallel-Resonant Inverter
Ayano Komanaka, Wenqi Zhu, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
IEEE Transactions on Industrial Electronics, vol.69, no.1, pp.347-356 , Jan. 2022.
[Abstract | pdf]

Frequency-Modulation Controlled Load-Independent Class-E Inverter
Yutaro Komiyama, Shuya Matsuhashi, Wenqi Zhu, Taichi Mishima, Yuki Ito, Takeshi Uematsu, Kien Nguyen, Hiroo Sekiya
IEEE Access, vol.9, pp.144600-144613, Nov. 2021.
[Abstract | pdf]

Comprehensive and Simplified Numerical Design Procedure for Class-E Switching　Circuits
Wenqi Zhu, Yutaro KOMIYAMA, Kien NGUYEN, and Hiroo Sekiya
IEEE Access, Oct. 2021.
[Abstract | pdf]

Analysis and Design of 6.78 MHz Wireless Power Transfer System for Robot Arm
Katsuki Tokano, Wenqi Zhu, Tatsuki Osato, Kien Nguyen, Hiroo Sekiya
IEICE Transactions on Communications, pp.1-10, Sept. 2021.
[Abstract | pdf]

A novel design methodology for extended continuous class-F power amplifiers in wireless applications
Sepehr Zarghami, Mohsen Hayati, Marian K. Kazimierczuk, and Hiroo Sekiya
Wireless Networks, vol.27, pp.3947-3968, Aug. 2021.
[Abstract | pdf]

High-Frequency Single-Switch PFC with Frequency-Modulation Controlled Class-E2 Converter
Wenqi Zhu, Takayuki Ikari, Giorgio Lovison, Keisuke Inoue, Shigeharu Yamagami, and Hiroo Sekiya
IET Power Electronics, pp.1-11, June 2021.
[Abstract | pdf]

Early wake-up ahead node for fast code dissemination in wireless sensor networks
Qingyong Deng, Yan Ouyang, Shujuan Tian, Rong Ran, Jinsong Gui, and Hiroo Sekiya
IEEE Transactions on Vehicular Technology, vol.70, no.4, Apr. 2021.
[Abstract | pdf]

負荷非依存E級同期整流器の解析と設計
大里 辰希, アスヤ, 魏秀欽, 朱 聞起, グエンキエン, 関屋大雄
電子情報通信学会, vol.J104-B, no.2, pp.83-92, Feb. 2021.
[Abstract | pdf]

Design of class-E_M amplifier with consideration of parasitic non-linear capacitances and on-state resistance
Hamed Abbasi, Mohsen Hayati, Marian K. Kazimierczuk, and Hiroo Sekiya
IET Power Electronics, vol.13, no.14, Nov. 2020.
[Abstract | pdf]

Continuous class-F power amplifier using quasi-elliptic low-pass filtering matching network
Sepehr Zarghami, Mohsen Hayati, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Circuits and Systems II: Express Briefs, vol.67, no.11, pp.2407-2411, Nov. 2020.
[Abstract | pdf]

An automated design procedure for class-E amplifier
Yuichi Tanji, Haruna Matsushita, and Hiroo Sekiya
Nonlinear Theory and Its Applications, IEICE, vol.11, no.4, pp.527-545, Oct. 2020.
[Abstract | pdf]

Generalized Analysis and performance investigation of the class-E/Fn rectifiers
Asiya, Xiuqin Wei, Jingyue Ma, Tatsuki Osato, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya
IEEE Access, vol.8, pp.124145-124157, June 2020.
[Abstract | pdf]

Steady-state analysis and design of phase-controlled class-D ZVS inverter
Tatsuki Osato, Xiuqin Wei, Asiya, Kien Nguyen, and Hiroo Sekiya
Nonlinear Theory and Its Applications, IEICE, vol.11, no.2, pp.189-205, Apr. 2020.
[Abstract | pdf]

Analysis and design of generalized class-E rectifier
Asiya, Tatsuki Osato, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
Nonlinear Theory and Its Applications, IEICE, vol.11, no.2, pp.206-223, Apr. 2020.
[Abstract | pdf]

Design of load-independent class-E inverter with MOSFET gate-to-drain and drain-to-source parasitic capacitances
Weisen Luo, Yusuke Ogi, Fumiya Ebihara, Xiuqin Wei, and Hiroo Sekiya
Nonlinear Theory and Its Applications, IEICE, pp.267-277, Apr. 2020.
[Abstract | pdf]

Novel design of soft-switching resonant converter with performance visualization algorithm
Shohei Saito, Shohei Mita, Wenqi Zhu, Hiroyuki Onishi, Shingo Nagaoka,Takeshi Uematsu, Kien Nguyen, and Hiroo Sekiya
IEEE Access, vol.8, pp.59922-59933, Mar. 2020.
[Abstract | pdf]

Analysis and Design of Generalized Class-E/F2 and Class-E/F3 Inverters
Jingyue Ma, Asiya, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
IEEE Access, vol.8, pp.61277-61288, Mar. 2020.
[Abstract | pdf]

Locking range maximization in injection-locked class-E oscillator -A case study for optimizing synchronizability
Yoji Yabe, Hisa-Aki Tanaka, Hiroo Sekiya, Masaki Nakagawa, Fumito Mori, Kensuke Utsunomiya, and Akira Keida
IEEE Transactions on Circuits and Systems I: Regular Papers 2020, vol.67, no.5, pp.1762-1774, Mar. 2020.
[Abstract | pdf]

Steady-state analysis of class-E shunt inductor inverter outside ZCS and ZDCS conditions
Ali Lotfi, Akihiko Katsuki, Fujio Kurokawa, Hiroo Sekiya, Marian K. Kazimierczuk, and Frede Blaabjerg
IEEE Transactions on Components, Packaging and Manufacturing Technology, vol.9, no.8, pp.1587-1594, Aug. 2019.
[Abstract | pdf]

Analysis of class-DE PA using MOSFET devices with non-equally grading coefficient
Ali Lotfi, Akihiko Katsuki, Fujio Kurokawa, Hiroo Sekiya, Marian K. Kazimierczuk, and Frede Blaabjerg
IEEE Transactions on Circuits and Systems I: Regular Papers, vol.66, no.7, pp.2794-2802, Mar. 2019.
[Abstract | pdf]

Analysis and study of the duty ratio effects on the class-E_M power amplifier including MOSFET nonlinear gate-to-drain and drain-to-source capacitances
Mohsen Hayati, Hamed Abbasi, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Power Electronics, vol.33, no.12, pp.10500-10562, Dec. 2018.
[Abstract | pdf]

注入同期型E級発振器のロックレンジを最大化する入力波形の設計と実験検証
矢部洋司, 欧陽有界, 中川正基, 宇都宮健介, 永島和治, 関屋大雄, 田中久陽
電子情報通信学会和文論文誌 A, vol.J101-A, no.10, pp.250-259, Oct. 2018.
[Abstract | pdf]

Subnominal operation of class-E nonlinear shunt capacitance power amplifier at any duty ratio and grading coefficient
Ali Lotfi, Ali Medi, Akihiko Katsuki, Fujio Kurokawa, Hiroo Sekiya, Marian K. Kazimierczuk, and Tadashi Suetsugu
IEEE Transactions on Industrial Electronics, vol.65, no.10, Oct. 2018.
[Abstract | pdf]

High-frequency resonant gate driever with isolated class-E amplifier
Ryoko Sugano, Yuchong Sun, and Hiroo Sekiya
Nonlinear Theory and Its Applications, IEICE, vol.9, no.3, pp.358-373, July 2018.
[Abstract | pdf]

Design of class E power amplifier with new structure and flat top switch voltage waveform
Mohsen Hayati, Sobhan Roshani, Saeed Roshani, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Power Electronics, vol.33, no.3, pp.2571-2579, Mar. 2018.
[Abstract | pdf]

Outside nominal operation analysis and design considerations of Inverse-class-E power amplifier
Ali Lotfi, Ali Ershadi, Ali Medi, Mohsen Hayati, Marian K. Kazimierczuk, Hiroo Sekiya, Akihiko Katsuki, and Fujio Kurokawa
IEEE Journal of Emerging and Selected Topics in Power Electronics, vol.6, no.1, pp.165-174, 2018.
[Abstract | pdf]

Steady-state analysis of isolated class-E2 converter outside nominal operation
Tomoharu Nagashima, Xiuqin Wei, Elisenda Bou, Eduard Alarcon, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Industrial Electronics, vol.64, no.4, pp.3227-3238, Apr. 2017.
[Abstract | pdf]

Power-flow simulator with visualization function based on IEEE common data format
Shohei Sugino and Hiroo Sekiya
Journal of Multimedia and Information System, vol.3, no.4, pp.161-168, Dec. 2016.
[Abstract | pdf]

A class E power amplifier design considering MOSFET nonlinear drain-to-source and nonlinear gate-to-drain capacitances at any grading coefficient
Mohsen Hayati, Sobhan Roshani, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Power Electronics, vol.31, no.11, pp.7770-7779, Nov. 2016.
[Abstract | pdf]

注入同期のロックレンジを最大化する入力信号波形―CMOSリングオシレータを例として―
矢部 洋司, 西川 功, 中田 一紀, 守 知行, 関屋 大雄, 安藤 芳晃, 田中 久陽
電子情報通信学会論文誌 C, vol.J99-C, no.6, pp.298-313, June 2016.
[Abstract | pdf]

Analysis and design of class E power amplifier considering MOSFET parasitic input and output capacitances
Mohsen Hayati, Sobhan Roshani, Marian Kazimierczuk, and Hiroo Sekiya
IET Circuits, Devices & Systems, vol.10, pp.433-440, Apr. 2016.
[Abstract | pdf]

Orthogonal-Gradient Measurement Matrix Construction Algorithm
Tian Shujuan, Fan Xiaoping, Li Zhetao, Pan Tian, Choi Youngjune, and Hiroo Sekiya
Chinese Journal of Electronics, vol.25, no.1, pp.81-87, Jan. 2016.
[Abstract | pdf]

Steady-state analysis and design of class-D ZVS inverter at any duty ratio
Xiuqin Wei, Hiroo Sekiya, Tomoharu Nagashima, Marian K. Kazimierczuk, and Tadashi Suetsugu
IEEE Transactions on Power Electronics, vol.31, no.1, pp.394-405, Jan. 2016.
[Abstract | pdf]

Analysis and design of loosely inductive coupled wireless power transfer system based on class-E^2 DC-DC converter for efficiency enhancement
Tomoharu Nagashima, Xiuqin Wei, Elisenda Bou, Eduard Alarcon, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.62, no.11, pp.2781-2791, Nov. 2015.
[Abstract | pdf]

Design of a DC-DC converter with phase-controlled class-D ZVS invertrer
Yuta Yamada, Tomoharu Nagashima, Yoshifumi Ibuki, Yoshiki Fukumoto, Tatsuya Ikenari, and Hiroo Sekiya
IEEE Journal on Emerging and Selected Topics in Circuits and Systems(JETCAS), pp.354-363, July 2015.
[Abstract | pdf]

Steady-state analysis and design of class-DE inverter at any duty ratio
Hiroo Sekiya, Xiuqin Wei, Tomoharu Nagashima, and Marian K. Kazimierczuk
IEEE Transactions on Power Electronics, vol.30, no.7, pp.3685-3694, July 2015.
[Abstract | pdf]

Generalized design considerations and analysis of class-E amplifier for sinusoidal and square input voltage waveform
Mohsen Hayati, Ali Lotfi, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Industrial Electronics, vol.62, no.1, pp.211-220, Jan. 2015.
[Abstract | pdf]

Locking range derivations for injection-locked class-E oscillator applying phase reduction theory
Tomoharu Nagashima, Xiuqin Wei, Hisa-Aki Tanaka, and Hiroo Sekiya
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.61, no.10, pp.2904-2911, Oct. 2014.
[Abstract | pdf]

Analysis, Design and Implementation of Class-E ZVS Power Amplifier with MOSFET Nonlinear Drain-to-Source Parasitic Capacitance at Any Grading Coefficient
Mohsen Hayati, Ali Lotfi, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Power Electronics, vol.29, no.9, pp.4989-4999, Sept. 2014.
[Abstract | pdf]

Waveform equations, output power, and power conversion efficiency for class-E inverter outside nominal operation
Tomoharu Nagashima, Xiuqin Wei, Tadashi Suetsugu, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Industrial Electronics, vol.61, no.4, pp.1799-1810, Apr. 2014.
[Abstract | pdf]

Modeling and analysis of class-E amplifier with a shunt inductor at sub-nominal operation for any duty ratio
Mohsen Hayati, Ali Lotfi, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.61, no.4, pp.987-1000, Apr. 2014.
[Abstract | pdf]

Analysis and design of class-E_M power amplifier
Xiuqin Wei, Tomoharu Nagashima, Marian K. Kazimierczuk, Hiroo Sekiya, and Tadashi Suetsugu
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.61, no.4, pp.976-986, Apr. 2014.
[Abstract | pdf]

Analysis and design of class-E power amplifier with MOSFET parasitic linear and nonlinear capacitances at any duty ratio
Mohsen Hayati, Ali Lotfi, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Power Electronics, vol.28, no.11, pp.5222-5232, Nov. 2013.
[Abstract | pdf]

Performance study of class-E power amplifier with a shunt inductor at subnominal conditios
Mohsen Hayati, Ali Lotfi, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Power Electronics, vol.28, no.8, pp.3834-3844, Aug. 2013.
[Abstract | pdf]

Particle swarm optimization for design of class-E amplifier
Yuichi Tanji, Haruna Matsushita, and Hiroo Sekiya
Nonlinear Theory and Its Applications, IEICE Journal, vol.3, no.4, pp.586-595, Oct. 2012.
[Abstract | pdf]

Design of class-E_M oscillator with second harmonic injection
Ryosuke Miyahara, Xiuqin Wei, Tomoharu Nagashima, Takuji Kousaka, and Hiroo Sekiya
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.59, no.10, pp.2456-2467, Oct. 2012.
[Abstract | pdf]

Push-pull class-E_M power amplifier for low harmonic-contents and high output-power applications
Xiuqin Wei, Shingo Kuroiwa, Tomoharu Nagashima, Marian K. Kazimierczuk, and Hiroo Sekiya
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.59, no.9, pp.2137-2146 , Sept. 2012.
[Abstract | pdf]

Steady-state behavior of class-E amplifier outside nominal operation taking into account MOSFET-body-diode effect
Tomoharu Nagashima and Hiroo Sekiya
Journal of Signal Prosessing, vol.16, no.4, July 2012.
[Abstract | pdf]

Bifurcation analysis of the class-E inverter for switching-pattern derivations
Tomoharu Nagashima, XiuqinWei, Takuji Kousaka, and Hiroo Sekiya
IEICE Communications Express (ComEx), vol.1, no.1, pp.33-39, June 2012.
[Abstract | pdf]

Design of class-E amplifier with MOSFET linear gate-to-drain and nonlinear drain-to-source capacitances
Xiuqin Wei, Hiroo Sekiya, Shingo Kuroiwa, Tadashi Suetsugu, and Marian K. Kazimierczuk
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.58, no.10, pp.2556-2565, Oct. 2011.
[Abstract | pdf]

Novel design procedure for Class-E_M power amplifiers
Ryosuke Miyahara, Hiroo Sekiya, and Marian K. Kazimierczuk
IEEE Transactions on Microwave Theory and Technique, vol.58, no.12, pp.3607-3616, Dec. 2010.
[Abstract | pdf]

Analysis of class-DE amplifier with linear and nonlinear shunt capacitances at 25% duty ratio
Hiroo Sekiya, Natsumi Sagawa, and Marian K. Kazimierczuk
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.57, no.9, pp.2334-2342, Sept. 2010.
[Abstract | pdf]

Analysis of class DE amplifier with nonlinear shunt capacitances at any grading coefficient for high Q and 25 % duty ratio
Hiroo Sekiya, Natsumi Sagawa, and Marian K. Kazimierczuk
IEEE Transactions on Power Electronics, vol.25, no.4, pp.924-932, Apr. 2010.
[Abstract | pdf]

Analysis and design of class DE amplifier with nonlinear shunt capacitances
Hiroo Sekiya, Takayuki Watanabe, Tadashi Suetsugu, and Marian K. Kazimierczuk
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.56, no.10, pp.2362-2371, Oct. 2009.
[Abstract | pdf]

Design procedure for class E switching circuits allowing implicit circuit equations
Hiroo Sekiya, Tooru Ezawa, and Yuichi Tanji
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.55, no.11, pp.3688-3696, Dec. 2008.
[Abstract | pdf]

Design of class DE amplifier with nonlinear shunt capacitances for any output Q
Toru Ezawa, Hiroo Sekiya, and Takashi Yahagi
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E91-A, no.4, pp.927-934, Apr. 2008.
[Abstract | pdf]

Novel design procedure for class DE amplifier
Hiroo Sekiya, Satoki Oshikawa, Jianming Lu, and Takashi Yahagi
Journal of Circuits, Systems, and Computers, vol.17, no.2, pp.191-209, Apr. 2008.
[Abstract | pdf]

Design of class DE inverter with second order constant K band-pass filter
Motoki Katayama, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
IEICE Trans. on Fundamentals of Electronics, Communications and Computer Sciences, vol.E90-A, no.10, pp.2132-2140, Oct. 2007.
[Abstract | pdf]

Resonant dc/dc converter with class E oscillator
Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, Takashi Yahagi
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.53, no.9, pp.2025 - 2035, Sept. 2006.
[Abstract | pdf]

Steady-state behavior of class DE amplifier under non optimum?@conditions
Takahiro Negishi, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
Journal of Signal Processing, vol.10, no.4, pp.247-250, July 2006.
[Abstract | pdf]

Investigation of class E amplifier with nonlinear capacitance for any output Q and finite dc-feed inductance
Hiroo Sekiya, Yoji Arifuku, Hiroyuki Hase, Jianming Lu, and Takashi Yahagi
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E89–A, no.4, pp.873-881, Apr. 2006.
[Abstract | pdf]

Phase control for resonant dc/dc converter with class DE inverter and class E rectifier
Hiroo Sekiya, Shuichi Nemoto, Jianming Lu, and Takashi Yahagi
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.53, no.1, pp.254-263, Feb. 2006.
[Abstract | pdf]

Design of phase-controlled class E inverter with asymmetric circuit configuration
Daisuke Kawamoto, Hiroo Sekiya, Hirotaka Koizumi, Iwao Sasase, and Shinsaku Mori
IEEE Transactions on Circuits and Systems Part II: express Briefs, vol.51, no.10, pp.523-528, Oct. 2004.
[Abstract | pdf]

Novel design procedure for MOSFET class E oscillator
Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E87-A, no.9, pp.2241-2247, Sept. 2004.
[Abstract | pdf]

FM/PWM control scheme in class DE inverter
Hiroo Sekiya, Hirotaka Koizumi, Shinsaku Mori, Iwao Sasase, Jianming Lu, and Takashi Yahagi
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.51, no.7, pp.1250-1260, July 2004.
[Abstract | pdf]

Exact analysis of class DE amplifier with FM and PWM control
Hiroo Sekiya, Shinsaku Mori, and Iwao Sasase
IEICE Trans. on Coomunications, vol.E86-B, no.10, pp.3082-3093, Oct. 2003.
[Abstract | pdf]

Design of generalized class E^2 dc/dc converter
Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
International Journal of Circuit Theory and Applications, vol.31, no.3, pp.229-248, Aug. 2003.
[Abstract | pdf]

Computation of design values for Class E amplifiers without using waveform equations
Hiroo Sekiya, Iwao Sasase, and Shinsaku Mori
IEEE Transactions on Circuits and Systems Part I: Fundamental Theory and Applications, vol.49, no.7, pp.966-978, July 2002.
[Abstract | pdf]

Resonant dc/dc converter with class DE inverter and class E rectifier using thinned-out method (deleting some of pulses to the rectifier)
Hirotaka Koizumi, Hiroo Sekiya, Mitsuhiro Matsuo, Shinsaku Mori, and Iwao Sasase
IEEE Transactions on Circuits and Systems Part I: Regular Papers, vol.48, no.1, pp.123-126, Jan. 2001.
[Abstract | pdf]

New control scheme for class DE inverter by varying driving signals
Hiroo Sekiya, Mitsuhiro Matsuo, Hirotaka Koizumi, Shinsaku Mori, and Iwao Sasase,
IEEE Transactions on Industrial Electronics, vol.47, no.6, pp.1237-1247, Dec. 2000.
[Abstract | pdf]

Design of a high-efficiency class DE tuned power oscillator
Mitsuhiro Matsuo, Hiroo Sekiya, Tadashi Suetsugu, Kokichi Shinoda, and Shinsaku Mori
IEEE Transactions on Circuits and Systems Part I: Fundamental Theory and Applications, vol.47, no.11, pp.1645-1649, Nov. 2000.
[Abstract | pdf]

Design of Class-Φ3 Power Oscillator
Yutaro Komiyama, Wenqi Zhu, Akihiro Konishi, Nguyen Kien, and Hiroo Sekiya
2024 IEEE International Symposium on Circuits and Systems (ISCAS2024), May 2024.
[Abstract | pdf]

Resonant Converter with Class-E^−1 inverter with Constant Voltage
Ayano Komanaka, Wenqi Zhu, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
2024 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing(NCSP2024), pp.441-444, Mar. 2024.
[Abstract | pdf]

Load-Independent High-Frequency WPT System for Multiple Receivers With Single Transmitter
Hanxiao Wang, Yutaro Komiyama,Xiuqin Wei, Akihiro Konishi,Kien Nguyen, and Hiroo Sekiya
The 49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023), Oct. 2023.
[Abstract | pdf]

Reconfigurable Class-E/EF Load-independent Inverter with CC-CV Output,
W. Zhu, A. Komanaka, Y. Komiyama, X. Wei, K. Nguyen, and H. Sekiya
IEEE Energy Convers. Congr. Expo. (ECCE), pp.2307-2312, Oct. 2023.
[Abstract | pdf]

Simple Applications of WiBIC with Asynchronous Pulse Code Multiple Access
Jiaying Lin, Ryuji Nagasawa, Kien Nguyen† , Hiroyuki Torikai, Mikio Hasegawa,Won-Joo Hwang and Hiroo Sekiya
IEICE Proceedings Series,, vol.76, no.B2L-24, Sept. 2023.
[Abstract | pdf]

Design of High-Frequency CC/CV Output Load- Independent WPT System
Jiaxin Yan, Wenqi Zhu, Akihiro Konishi,Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
12th INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY RESEARCH AND APPLICATIONS(ICRERA), Aug. 2023.
[Abstract | pdf]

Load-Independent Multiple Output WPT System With Fixed Coupling Coils
Akihiro Konishi, Ken Onodera, Yutaro Komiyama, Xiuqin Wei, Kien Nguyen, Hiroo Sekiya
The 20th International SoC Conference (ISOCC 2023), Aug. 2023.
[Abstract | pdf]

Design and Construction of Indoor People Number Estimation System
Ryuji Nagazawa, Jiaying Lin, Kien Nguyen, Hiroo Sekiya, Won-Joo Hwang, Hiroyuki Torikai
ISSN 1975-4736 MITA2023, July 2023.
[Abstract | pdf]

Self-Tuned Series Resonant Power Oscillator with Load-independent Operation
Yutaro Komiyama, Wenqi Zhu, Ayano Komanaka, Xiuqin Wei, Nguyen Kien, and Hiroo Sekiya
2023 IEEE International Symposium on Circuits and Systems (ISCAS2023), pp.1-5, May 2023.
[Abstract | pdf]

Simulator-Based Optimization Software for High-Frequency Power-Electronics Circuits
Yuichi Hirama, Ayano Komanaka, Yutaro Komiyama, Wenqi Zhu, Kien Nguyen, Xiuqin Wei, Hiroo Sekiya
2023 IEEE International Symposium on Circuits and Systems (ISCAS2023), pp.1-5, May 2023.
[Abstract | pdf]

Wireless Power Transfer System with Series Resonant Inverse Class-E Inverter
Yutaro Komiyama, Wenqi Zhu, Wei Xiuqin, Kien Nguyen, and Hiroo Sekiya
2023 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'23), pp.194-197, Mar. 2023.
[Abstract | pdf]

Load-Independent Constant-Current/Zero-Current Switching Inverter with Series Resonant Filter
Yutaro Komiyama, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya
2023 IEEE Applied Power Electronics Conference and Exposition, pp.490-494, Mar. 2023.
[Abstract | pdf]

Analysis and Design of Push-pull Load-independent Class-E Frequency Tripler
Yinchen Xie, Wenqi Zhu,Yutaro Komiyama, Kien Nguyen, and Hiroo Sekiya
2023 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'23),, Mar. 2023.
[Abstract | pdf]

Achievement of CV and CC Output Modes on Class-E/F Inverter with One Auxiliary Switch
Wenqi Zhu, Yutaro Komiyama, Kien Nguyen, and Hiroo Sekiya
2022 IEEE International Symposium on Circuits and Systems (ISCAS, pp.2635-2639, Dec. 2022.
[Abstract | pdf]

Design of Class-E Frequency Doubler Corresponding to Load Variations in Large Ranges
Yinchen Xie, Wenqi Zhu, Yutaro Komiyama, Kien Nguyen, and Hiroo Sekiya
IEEE Workshop on Nonlinear Circuits Networks (NCN2022), Dec. 2022.
[Abstract | pdf]

Development of robotic system without wired connections at joints by wireless communication and wireless power transfer
Kazunobu Serizawa, Satoru Shimizu, Hiroo Sekiya, and Masataka Ohira
2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), pp.01-07, Sept. 2022.
[Abstract | pdf]

Constant Voltage Output Autonomous Wireless Power Transfer System
Yutaro Komiyama, Shuya Matsuhashi, Wenqi Zhu, Kien Nguyen, Takeshi Uematsu, Yuki Ito, Taichi Mishima, and Hiroo Sekiya
2021 IEEE Workshop on Nonlinear Circuit Networks (NCN2021), pp.21-24, Dec. 2021.
[Abstract | pdf]

Wireless Power Transfer System with Load-Independent Inverse Class-E Oscillator
Yutaro Komiyama, Shuya Matsuhashi, Wenqi Zhu, Kien Nguyen, Takeshi Uematsu, Yuki Ito, Taichi Mishima, and Hiroo Sekiya
The 2021 Nonlinear Science Workshop (NLSW2021), p.39, Dec. 2021.
[Abstract | pdf]

Load-Independent Inverse Class-E Oscillator with Armstrong-Oscillator Based Topology
Yutaro Komiyama, Shuya Matsuhashi, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya
The 18th International SoC Design Conference (ISOCC 2021), pp.175-176, Oct. 2021.
[Abstract | pdf]

Heuristic Algorithm-Based Design Method for Class-E Switching Circuits
Wenqi Zhu, Yutaro KOMIYAMA, Kien NGUYEN, and Hiroo Sekiya
IEEE Annual Energy Conversion Congress and Exposition (ECCE2021), Oct. 2021.
[Abstract | pdf]

PSO-based Design Procedure for Class-DE Inverter
Wenqi Zhu, Yutaro KOMIYAMA, Kien NGUYEN, and Hiroo Sekiya
18th International SoC Design Conference (ISOCC 2021), Oct. 2021.
[Abstract | pdf]

Class-E Inverter with Frequency Modulation Control
Yutaro Komiyama, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya
The 10th International Conference on Renewable Energy Research and Applications (ICRERA 2021), pp.94-98, Sept. 2021.
[Abstract | pdf]

Load Independent Class-E-1 Inverter with Shunt Capacitance
Ayano Komanaka, Wenqi Zhu, Kien Nguyen, Hiroo Sekiya, and Xiuqin Wei
ISIE2021, June 2021.
[Abstract | pdf]

Optimal Design of 6.78 MHz Wireless Power Transfer System for Robot Arm
Katsuki Tokano, Wenqi Zhu, Tatsuki Osato, Kien Nguyen, Hiroo Sekiya
International Symposium on Circuits and Systems, May 2021.
[Abstract | pdf]

Analysis and Design of Load-Independent ZCS Parallel-Resonant Inverter
Ayano Komanaka, Wenqi Zhu, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.309-312, Mar. 2021.
[Abstract | pdf]

Implementation of Micropayment System Using IoT Devices
Ryota Nakada, Kien Nguyen, and Hiroo Sekiya
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.178-181, Mar. 2021.
[Abstract | pdf]

Experimental Evaluations of Inverse Class-E Inverter
Ayano Komanaka, Wenqi Zhu, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya
2020 IEEE Workshop on Nonlinear Circuit Networks(NCN2020), Dec. 2020.
[Abstract | pdf]

Analysis and Experimental Verification of Parallel Resonant Oscillator
Shuya Matsuhashi,Kien Nguyen, and Hiroo Sekiya
2020 IEEE Workshop on Nonlinear Circuit Networks(NCN2020), Dec. 2020.
[Abstract | pdf]

Analysis of Multi-hop Wireless Power Transfer System
Katsuki Tokano, Wenqi Zhu, Tatsuki Osato, Kien Nguyen, and Hiroo Sekiya
2020 IEEE Workshop on Nonlinear Circuit Networks(NCN2020), Dec. 2020.
[Abstract | pdf]

Highly Accelerated Optimization Method for Wireless Power Transfer System
W. Zhu, K. Nguyen, and H. Sekiya
2020 IEEE Workshop on Nonlinear Circuit Networks(NCN2020), Dec. 2020.
[Abstract | pdf]

Design of class-Phi3 Inverter
Hiroo Sekiya, Jingyue Ma, and Kien Nguyen
17th International SoC Design Conference (ISOCC2020), Oct. 2020.
[Abstract | pdf]

Load-independent self-tuned parallel resonant power oscillator
Shuya Matsuhashi, Yoshiro Hara,Kien Nguyen, Takeshi Uematsu, Shingo Nagaoka, Taichi Mishima, and Hiroo Sekiya
The Eleventh Annual Energy Conversion Congress and Exposition (ECCE2019), Detroit, MI, USA, pp.1571-1576, Oct. 2020.
[Abstract | pdf]

A 1MHz Class-E2 Single-Stage PFC Converter with Frequency Control
Wenqi Zhu and Hiroo Sekiya
2020 IEEE Applied Power Electronics Conference and Exposition ( APEC), Mar. 2020.
[Abstract | pdf]

Evaluation of Load Variations Characteristic in Class-F Amplifier
Yuki Oue, Kien Nguyen, and Hiroo Sekiya
2019 IEEE Workshop on Nonlinear Circuit Networks, Dec. 2019.
[Abstract | pdf]

A 1MHz Class-E2 Single-Stage Power Factor Correction Converter with Frequency Control
Wenqi Zhu, Kien Nguyen and Hiroo Sekiya
2019 IEEE Workshop on Nonlinear Circuit Networks, Dec. 2019.
[Abstract | pdf]

Analysis of Class-E Rectifier with Low Output-Filter Inductance
Asiya, Tatsuki Osato, Kien Nguyen, Hiroo Sekiya, and Xiuqin Wei
8TH INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY RESEARCH AND APPLICATIONS, Nov. 2019.
[Abstract | pdf]

Design of 6.78 MHz SiC MOSFET class-E inverter with a class-phi high-speed driver
Haruma Yogi, Xiuqin Wei, Hiroo Sekiya, and Takashi Hikihara
The Eleventh Annual Energy Conversion Congress and Exposition (ECCE2019), Baltimore, MD, USA, pp.375-379, Oct. 2019.
[Abstract | pdf]

A novel circuit topology and its design for class-E^2 DC-DC converter
Yusuke Ogi, Fumiya Ebihara, Xiuqin Wei, and Hiroo Sekiya
The Eleventh Annual Energy Conversion Congress and Exposition (ECCE2019), Baltimore, MD, USA, pp.1256-1260, Oct. 2019.
[Abstract | pdf]

Load independent parallel resonant inverter
H. Sekiya, Y. Ozawa and X. Wei
16th International SoC Design Conference (ISOCC2019), pp.148-149, Oct. 2019.
[Abstract | pdf]

Analysis of load-independent class-E inverter at any duty ratio
Natsumi Obinata, Weisen Luo, Xiuqin Wei, and Hiroo Sekiya
The 45th Annual Conference of the IEEE Industrial Electronics Society (IECON 2019), pp.1615-1620, Oct. 2019.
[Abstract | pdf]

Design of load-independent class-E inverter with MOSFET parasitic capacitances
Weisen Luo, Xiuqin Wei, Hiroo Sekiya, and Tadashi Suetsugu
62nd IEEE International Midwest Symposium on Circuits and Systems (MWSCAS2019)), Dallas, TX, USA, Aug. 2019.
[Abstract | pdf]

Frequency-controlled resonant converter with push-pull Class-E inverter
Shohei Saito, Shohei Mita, Hiroyuki Onishi, Shingo Nagaoka, Takeshi Uematsu, and Hiroo Sekiya
2019 IEEE Applied Power Electronics Conference and Exposition (APEC2019), Mar. 2019.
[Abstract | pdf]

Experimental evaluations of thinned-out and PDM controlled class-D rectifier
Shengzhe Xu, Akane Iwasaki, and Hiroo Sekiya
2018 International Conference on Smart Grids (ICSG 2018), pp.76-81, Dec. 2018.
[Abstract | pdf]

Analysis and design of phase-controlled class-D ZVS inverter
Tatsuki Ohsato, Yuta Yamada, Xiuqin Wei, and Hiroo Sekiya
2018 International SoC Design Conference (ISOCC2018), pp.160-161, Nov. 2018.
[Abstract | pdf]

Pre- and post-regulation control of high-frequency magnetic-resonance wireless power transfer system with class-D rectifier
Yoshiro Hara, Tatsuki Ohsato, and Hiroo Sekiya
2018 IEEE International Communications Energy Conference (INTELEC2018), pp.1-6, Oct. 2018.
[Abstract | pdf]

The phase-controlled class-D ZVS inverter with clamp diodes
Yusuke Ishihara, Shohei Mita, and Hiroo Sekiya
2018 IEEE Energy Conversion Congress and Exposition (ECCE2018), pp.6745-6750, Sept. 2018.
[Abstract | pdf]

High-frequency soft-switching resonant driver for SiC class-D amplifier
Ryoko Sugano, Xiuqin Wei, and Hiroo Sekiya
2018 International Symposium on Nonlinear Theory and Its Application (NOLTA2018), Sept. 2018.
[Abstract | pdf]

Analysis of class-D ZVS inverter with asymmetrical duty-cycle control for wireless power transfer applications
Shohei Mita, Hiroo Sekiya
2018 IEEE International Symposium on Circuits and Systems (ISCAS2018), pp.1-5, May 2018.
[Abstract | pdf]

Analysis and design of wireless power transfer system with asymmetrical duty-cycle controlled class-D ZVS inverter
Shohei Mita, Hiroo Sekiya
2018 IEEE International Symposium on Circuits and Systems (ISCAS2018), pp.1-5, May 2018.
[Abstract | pdf]

A novel analysis procedure for class E oscillator
Fumiya Ebihara, Xiuqin Wei, Hiroo Sekiya, and Tadashi Suetsugu
2018 IEEE International Symposium on Circuits and Systems (ISCAS2018), pp.1-5, May 2018.
[Abstract | pdf]

Design of phase-controlled class-D ZVS inverter for output power regulation
Yudai Nagata, Hiroo Sekiya
2018 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'18), Mar. 2018.
[Abstract | pdf]

Analysis procedure of further miniaturized class-E2 DC/DC converter
Yuusuke Ogi, Xiuqin Wei, Hiroo Sekiya, and Tadashi Suetsugu
2018 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'18), Mar. 2018.
[Abstract | pdf]

Steady-state analytical expression of voltage shift in resonant drivers with clamp diode
Hanako Matsubara, Xiuqin Wei, and Hiroo Sekiyay
2017 International Symposium on Nonlinear Theory and Its Application (NOLTA2017), Dec. 2017.
[Abstract | pdf]

The Phase-controlled class-D ZVS inverter with current protection
Yudai Nagata, Yoshiki Fukumoto, Tatsuya Ikenari, Hiroo Sekiya
2017 IEEE Energy Conversion Congress and Exposition (ECCE2017), pp.2176-2183, Oct. 2017.
[Abstract | pdf]

Implementation and evaluation of pre- and post-regulation control with class-E^2 wireless power transfer system
Yuta Ozawa, Hiroo Sekiya
2017 IEEE International Telecommunications Energy Conference (INTELEC2017), pp.369-375, Oct. 2017.
[Abstract | pdf]

A flyback converter using power-MOSFETs to achieve high frequency operation beyond 10 MHz
Tatsuki Ohsato, Nobuo Satoh, and Hiroo Sekiya
2017 International Future Energy Electronics Conference (IFEEC2017), no.1101-1105, June 2017.
[Abstract | pdf]

Proposal and analysis of Class-E/F3 rectifier
Takumi Murayama, Xiuqin Wei, and Hiroo Sekiya
2017 International Future Energy Electronics Conference (IFEEC2017), pp.175-179, June 2017.
[Abstract | pdf]

Design of wireless power transfer system with class E inverter and half-bridge class DE rectifier at any fixed coupling coefficient
Tsuyoshi Inaba, Hiroo Sekiya, Hirotaka Koizumi
2017 International Future Energy Electronics Conference (IFEEC2017), pp.185-189, June 2017.
[Abstract | pdf]

High-speed driver for SiC MOSFET based on class-E inverter
Yuchong Sun, Ryoko Sugano, Xiuqin Wei, Takashi Hikihara, and Hiroo Sekiya
2017 IEEE International Symposium on Circuits and Systems(ISCAS2017), pp.1-4, May 2017.
[Abstract | pdf]

Review of tuned power oscillators
Hiroo Sekiya
2016 International Symposium on Nonlinear Theory and Its Application (NOLTA2016), pp.582-585, Nov. 2016.
[Abstract | pdf]

Design example of SiC isolated soft-switching driver
Ryoko Sugano, Yuchong Sun, Hiroo Sekiya, Takashi Hikihara
2016 International Symposium on Nonlinear Theory and Its Application (NOLTA2016), Nov. 2016.
[Abstract | pdf]

A design example of class-E based gate driver for high frequency operation of SiC power MOSFET
Michihiro Shintani, Yuchong Sun, Hiroo Sekiya, and Takashi Sato
2016 International Symposium on Nonlinear Theory and Its Application (NOLTA2016), p.181, Nov. 2016.
[Abstract | pdf]

Experimental evaluations of thinned-out and PDM controlled class-E rectifier
Akane Iwasaki, Tomoharu Nagashima, and Hiroo Sekiya
2016 IEEE Energy Conversion Congress and Exposition (ECCE2016), Sept. 2016.
[Abstract | pdf]

Design procedure for wireless power transfer system with inductive coupling-coil optimizations using PSO
Takumi Noda, Tomoharu Nagashima, Xiuqin Wei, and Hiroo Sekiya
2016 IEEE International Symposium on Circuits and Systems (ISCAS2016), pp.646-649, May 2016.
[Abstract | pdf]

Analytical expression of phase-controlled class-D inverter at any duty ratio
Yuta Yamada, Tomoharu Nagashima, and Hiroo Sekiya
2016 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'16), pp.383-386, Mar. 2016.
[Abstract | pdf]

Resonant converter designs applying computation algorithms of bifurcation values
Yuta Yamada, Tomoharu Nagashima, and Hiroo Sekiya
2015 International Symposium on Nonlinear Theory and its Applications (NOLTA2015), pp.221-224, Dec. 2015.
[Abstract | pdf]

Class-E^2 inductive power transfer system with pre- and post-regulators
Tomoharu Nagashima, Xiuqin Wei, and Hiroo Sekiya
4th International Conference on Renewable Energy Research and Applications (ICRERA2015), Nov. 2015.
[Abstract | pdf]

Class-D inverter with MOSFET nonlinear parasitic capacitance
Koyo Yonekura, Xiuqin Wei, Tomoharu Nagashima, Hiroo Sekiya, and Tadashi Suetsugu
4th International Conference on Renewable Energy Research and Applications (ICRERA2015), Nov. 2015.
[Abstract | pdf]

A design of inductively coupled wireless power transfer system with coupling coil optimization
Takumi Noda, Tomoharu Nagashima, and Hiroo Sekiya
The 37th International Telecommunications Energy Conference (INTELEC2015), pp.864-869, Oct. 2015.
[Abstract | pdf]

Analytical design for resonant inductive coupling wireless power transfer system with class-E inverter and class-DE rectifier
Tomoharu Nagashima, Xiuqin Wei, Elisenda Bou, Eduard Alarcon, and Hiroo Sekiya
2015 IEEE International Symposium on Circuits and Systems (ISCAS2015), pp.686-689, May 2015.
[Abstract | pdf]

[Invited Talk] Analytical design procedure for resonant inductively coupled class-E^2 wireless power transfer system
Tomoharu Nagashima, Xiuqin Wei, and Hiroo Sekiya
2014 IEEE Workshop on Nonlinear Circuit Networks (NCN2014), Dec. 2014.
[Abstract | pdf]

Numerical algorithm for distribution-map derivations of switching converters
Yuta Yamada, Tomoharu Nagashima, Yoshifumi Ibuki, Yoshiki Fukumoto, and Hiroo Sekiya
The 40th Annual Conference of the IEEE Industrial Electronics Society (IECON 2014), pp.4338-4344, Nov. 2014.
[Abstract | pdf]

Analytical design procedure for resonant inductively coupled wireless power transfer system with class-DE inverter and class-E rectifier
Tomoharu Nagashima, Xiuqin Wei, and Hiroo Sekiya
2014 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS2014),, pp.288-291, Nov. 2014.
[Abstract | pdf]

A loosely coupled inductive wireless power transfer systems with class-E transmitter and multiple receivers
Hiroo Sekiya, Kazuhide Inoue, Tomoharu Nagashima, Tadashi Suetsugu, Shotaro Kuga, Xiuqin Wei, Kenichi Shirota, Hironobu Hatamoto, and Satoru Shimizu
2014 IEEE Energy Conversion Congress and Exposition (ECCE2014), pp.675-680, Sept. 2014.
[Abstract | pdf]

Operation of class-E^2 DC-DC converter outside nominal conditions
Tomoharu Nagashima, Xiuqin Wei, and Hiroo Sekiya
2014 International Symposium on Nonlinear Theory and its Applications (NOLTA2014), pp.478 - 481, Sept. 2014.
[Abstract | pdf]

Analytical design procedure for resonant inductively coupled wireless power transfer with class-E^2 DC-DC converter
Tomoharu Nagashima, Kazuhide Inoue, Xiuqin Wei, Elisenda Bou, Eduard Alarcon, Marian K. Kazimierczuk, and Hiroo Sekiya
2014 IEEE International Symposium on Circuits and Systems (ISCAS2014), pp.113-116, June 2014.
[Abstract | pdf]

Multiphase resonant inverters with common resonant circuit
Mariusz Bojarski, Dariusz Czarkowski, Francisco de Leon, Qijun Deng, Marian K. Kazimierczuk, and Hiroo Sekiya
2014 IEEE International Symposium on Circuits and Systems (ISCAS2014), pp.2445-2448, June 2014.
[Abstract | pdf]

Class E^2 resonant non-radiative wireless power transfer link: a design-oriented joint circuit-system co-characterization approach
Elisenda Bou,Tomoharu Nagashima, Hiroo Sekiya, and Eduard Alarcon
2014 IEEE International Multi-Conference on Systems, Signals and Devices (SSD2014), pp.1-4, Feb. 2014.
[Abstract | pdf]

MOSFET Parasitic Capacitance Effects to Class-DE Power Amplifier
Hiroo Sekiya, Xiuqin Wei, and Tomoharu Nagashima
2013 IEEE Electrical Design of Advanced Packaging & System Symposium (EDAPS2013), pp.245-248, Dec. 2013.
[Abstract | pdf]

Design of high-efficiency inductive-coupled wireless power transfer system with class-DE transmitter and class-E rectifier
Kazuhide Inoue, Tomoharu Nagashima, Xiuqin Wei, Hiroo Sekiya
The 39th Annual Conference of the IEEE Industrial Electronics Society (IECON 2013), pp.611-616, Nov. 2013.
[Abstract | pdf]

Analysis of class E_M amplifier with considering non-zero current fall time of drain current
Zhicai Zhang, Xiuqin Wei, Hiroo Sekiya, Naoki Oyama, Tadashi Suetsugu, and Tomoharu Nagashima
International Future Energy Electronics Conference 2013 (IFEEC2013), pp.338-343, Nov. 2013.
[Abstract | pdf]

Inductively coupled wireless powertransfer with class-E^2 DC-DC converter
Tomoharu Nagashima, Kazuhide Inoue, Xiuqin Wei, Elisenda Bou, Eduard Alarcon, and Hiroo Sekiya
The 21th European Conference of Circuits Technology and Devices(ECCTD2013), Sept. 2013.
[Abstract | pdf]

High-frequency high-efficiency resonant converter with class-E_M inverter and class-E rectifier
Hiroo Sekiya, Xiuqin Wei, and Tomoharu Nagashima
IEEE 56th Intl Midwest Symposium on Circuits & Systems (MWSCAS2013), pp.33-36, Aug. 2013.
[Abstract | pdf]

Effect of MOSFET Parasitic Capacitances on EER Transmitter with Class-E Amplifier
Xiuqin Wei, Tomoharu Nagashima, Hiroo Sekiya, and Tadashi Suetsugu
2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), pp.913-916, May 2013.
[Abstract | pdf]

Numerical derivations of locking ranges for injection-locked class-E oscillator
Tomoharu Nagashima, Xiuqin Wei, Hisa-Aki Tanaka, and Hiroo Sekiya
The 10th IEEE International Conference on Power Electronics and Drive Systems (PEDS2013), pp.1021-1024, Apr. 2013.
[Abstract | pdf]

Negative-bias driving voltage for class-E GaN HEMT oscillator using a diode
Youhei Noguchi, Xiuqin Wei, Tomoharu Nagashima, Hiroo Sekiya, and Tadashi Suetsugu
2013 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'13), pp.201-204, Mar. 2013.
[Abstract | pdf]

Inductively coupled wireless power transfer with class-DE power amplifier
Tomoharu Nagashima, Xiuqin Wei, Tadashi Suetsugu, and Hiroo Sekiya
2012 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS2012), , pp.73-76, Dec. 2012.
[Abstract | pdf]

Analytical derivation of switching-pattern distribution for class-E amplifier using bifurcation theory
Tomoharu Nagashima , Xiuqin Wei, Takuji Kousaka, and Hiroo Sekiya
2012 International Symposium on Nonlinear Theory and its Applications (NOLTA2012), pp.687-690, Oct. 2012.
[Abstract | pdf]

Bifurcation in injection-locked class-EM oscillator
Ryuta Nakamura, XiuqinWei, Takuji Kousaka, and Hiroo Sekiya
2012 International Symposium on Nonlinear Theory and its Applications (NOLTA2012), pp.691-694, Oct. 2012.
[Abstract | pdf]

Influence of nonlinear shunt capacitance in harmonic distortion in output envelope of drain voltage modulated Class E amplifier
Tadashi Suetsugu, Hiroo Sekiya, and Xiuquin Wei
2012 International Symposium on Nonlinear Theory and its Applications (NOLTA2012), pp.614-617, Oct. 2012.
[Abstract | pdf]

Approximate analysis for class-EM amplifier taking into account harmonic frequency components
Taro Kakimoto, Tomoharu Nagashima, Xiuqin Wei and Hiroo Sekiya
2012 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2012), pp.154-157, Mar. 2012.
[Abstract | pdf]

An enhanced PSO algorithm for designing class E amplifier
Yuichi Tanji, Haruna Matsushita, and Hiroo Sekiya
2012 RISP International Workshop on Nonlinear Circuits, Communications, and Signal Processing (NCSP2012), pp.146-149, Mar. 2012.
[Abstract | pdf]

Design of symmetric class-E_M power amplifier
Xiuqin Wei, Tomoharu Nagashima, Shingo Kuroiwa, Hiroo Sekiya
37th Annual Conference on IEEE Industrial Electronics Society (IECON2011) , pp.1300-1305 , Nov. 2011.
[Abstract | pdf]

Fundamental study on drain efficiency of EDSM/EPWM transmitter using class-EM amplifier
Makoto Taromaru, Naoki Oyama, Hiroo Sekiya, and Tadashi Suetsugu
Proc. 2011 Korea-Japan Microwave Conf. (KJMW 2011), pp.134-137, Nov. 2011.
[Abstract | pdf]

Design of class-DE power amplifier including optimal design of resonant inductor
Hiroo Sekiya, Natsumi Sagawa, Yuzhen Li, and Marian K. Kazimierczuk
Electrical Manufacturing Coil Winding & Coating Expo (EMCW2011), Sept. 2011.
[Abstract | pdf]

The dynamic behavior of the class-E_M amplifier outside of nominal conditions
Ryuta Nakamura, Hiroo Sekiya, and Takuji Kousaka
International Workshop on Nonlinear Maps and their Applications (NOMA2011), pp.38-40, Sept. 2011.
[Abstract | pdf]

Acceleration of PSO for designing class E amplifier
Yuichi Tanji, Haruna Matsushita, and Hiroo Sekiya
2011 International Symposium on Nonlinear Theory and Its Appilcations (NOLTA2011), pp.492-495, Sept. 2011.
[Abstract | pdf]

Power conversion efficiency of class-E power amplifier outside nominal operation
Tomoharu Nagashima, Xiuqin Wei, Hiroo Sekiya, and Marian K. Kazimierczuk
2011 IEEE International Symposium on Circuits and Systems (ISCAS2011) , pp.749-752, May 2011.
[Abstract | pdf]

Isolated class-E switching converter with high-frequency high-efficiency operation for low-voltage/high-current output applications
Natsumi Sagawa and Hiroo Sekiya
2010 IEEE Region 10 Conference (TENCON2010), pp.1851-1856, Nov. 2010.
[Abstract | pdf]

Core geometry coefficient for resonant inductors
Hiroo Sekiya and Marian K. Kazimierzuk
Electrical Manufacturing Coil Winding & Coating Expo (EMCW2010), Oct. 2010.
[Abstract | pdf]

Inter-connection of parallel connected class D amplifiers operated at different switching frequencies
Yusuke Ishikawa, Ryuta Yamamoto, Hiroyuki Uchiyama, Xiuqin Wei, Hiroo Sekiya, and Tadashi Suetsugu
2010 International Symposium on Nonlinear Theory and its Applications (NOLTA2010), pp.51-54, Sept. 2010.
[Abstract | pdf]

Design of class-E amplifier using particle swarm optimization  
Yuichi Tanji and Hiroo Sekiya
2010 International Symposium on Nonlinear Theory and its Applications (NOLTA2010), pp.517-519, Sept. 2010.
[Abstract | pdf]

Analysis and design of class-DE amplifier with nonlinear shunt capacitances at any duty ratio
Hiroo Sekiya and Marian K. Kazimierczuk
2010 International Symposium on Nonlinear Theory and its Applications (NOLTA2010), pp.362-365, Sept. 2010.
[Abstract | pdf]

Effect of MOSFET gate-to-drain parasitic capacitance on class-E power amplifier
Xiuqin Wei, Hiroo Sekiya, Shingo Kuroiwa, Tadashi Suetsugu, and Marian K. Kazimierczuk
2010 IEEE International Symposium on Circuits and Systems (ISCAS2010) , pp.3200-3203 , June 2010.
[Abstract | pdf]

Computer-aided design for class-E switching circuits taking into account optimized inductor designs
Natsumi Sagawa, Hiroo Sekiya, and Marian K. Kazimierczuk
2010 Twenty-Fifth IEEE Applied Power Electronics Conference and Exposition (APEC2010), pp.2212-2219, Feb. 2010.
[Abstract | pdf]

Design of class-EM power amplifier with one input signal
Ryosuke Miyahara and Hiroo Sekiya
European Conference on Cognitive Ergonomics 2009 (ECCE2009), pp.3859-3864, Sept. 2009.
[Abstract | pdf]

Design of RF-choke inductors using core geometry coefficient
Hiroo Sekiya and Marian K. Kazimierczuk
Electrical Manufacturing Coil Winding & Coating Expo (EMCW2009), Sept. 2009.
[Abstract | pdf]

Design of AC resonant inductors using area product method
Marian K. Kazimierczuk and Hiroo Sekiya
2009 IEEE Energy Conversion Congress and Exposition (ECCE2009), pp.994-100, Sept. 2009.
[Abstract | pdf]

Design of class-DE amplifier with linear and nonlinear shunt capacitances for 25 % duty ratio
Hiroo Sekiya, Ryosuke Miyahara, and Marian K. Kazimierczuk
2009 IEEE International Symposium on Circuits and Systems (ISCAS2009) , pp.2870-2873 , May 2009.
[Abstract | pdf]

Experimental evaluation of interleaving technique in class E2 dc/dc converter with phase control
Motoki Katayama, Hiroo Sekiya, and Marian K. Kazimierczuk
2009 International Workshop on Nonlinear Circuits and Signal Processing (NCSP2009), pp.593-596, Mar. 2009.
[Abstract | pdf]

Design of class-EM power amplifier taking into account auxiliary circuit
Ryosuke Miyahara, Hiroo Sekiya, and Marian K. Kazimierczuk
The 34th Annual Conference of the IEEE Industrial Electronics Society (IECON2008), pp.679-68, Nov. 2008.
[Abstract | pdf]

[Invited Talk] Optimal core and wire of resonant inductor for class-E amplifier
Hiroo Sekiya, and Marian K. Kazimierczuk
International Workshop on Vision, Communications and Circuits (IWVCC2008), pp.3-6, Nov. 2008.
[Abstract | pdf]

Design of class DE amplifier with nonlinear shunt capacitances for any output Q
Toru Ezawa, Hiroo Sekiya, and Takashi Yahagi
2008 IEEE International Symposium on Circuits and Systems (ISCAS2008), pp.2910-2913, May 2008.
[Abstract | pdf]

An interleaved class E^2 dc/dc converter
Motoki Katayama, Hiroo Sekiya, and Takashi Yahagi
2008 IEEE International Symposium on Circuits and Systems (ISCAS2008), pp.2833-2836, May 2008.
[Abstract | pdf]

Analysis and design of class DE amplifier with nonlinear shunt capacitance
Hiroo Sekiya, Takayuki Watanabe, Tadashi Suetsugu, and Marian K. Kazimierczuk
The 7th International Conference on Power Electronics and Drive Systems (PEDS2007), pp.937-942, Nov. 2007.
[Abstract | pdf]

Implementation of design tool for class E switching circuits using Spice
Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
2007 International Symposium on Nonlinear Theory and its Applications (NOLTA2007), pp.509-512, Sept. 2007.
[Abstract | pdf]

Design of class DE inverter with band-pass filter
Motoki Katayama, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
The 32nd Annual Conference of the IEEE Industrial Electronics Society (IECON2006), pp.2723-2728, Nov. 2006.
[Abstract | pdf]

Effects of characteristics of band-pass filter to operation of class DE inverter
Motoki Katayama, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
The 2006 International Symposium on Nonlinear Theory and its Applications (NOLTA2006), pp.523-526, Sept. 2006.
[Abstract | pdf]

Operation of class DE amplifier outside optimum condition
Hiroo Sekiya, Takahiro Negishi, Tadashi Suetsugu, and Takashi Yahagi
2006 IEEE International Symposium on Circuits and Systems (ISCAS2006), pp.241-244, May 2006.
[Abstract | pdf]

Adaptive sliding mode control using simple adaptive control for SISO nonlinear systems
Muhammad Yasser, Agus Trisanto, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi
The 2006 IEEE International Symposium on Circuits and Systems (ISCAS2006), pp.2153-2156, May 2006.
[Abstract | pdf]

Steady-state behavior of class DE amplifier outside optimum conditions
Takahiro Negishi, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
2006 RISP International Workshop on Nonlinear Circuits and Signal Processing (NCSP2006), pp.263-266, Mar. 2006.
[Abstract | pdf]

Phase controlled class E^2 dc/dc converter with single RF choke core
Tsutomu Asano, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
2006 RISP International Workshop on Nonlinear Circuits and Signal Processing (NCSP2006), pp.267-270, Mar. 2006.
[Abstract | pdf]

Design of class E amplifier with any output Q and nonlinear capacitance on MOSFET
Hiroo Sekiya, Yoji Arifuku, Hiroyuki Hase, Jianming Lu, and Takashi Yahagi
2005 European Conference on Circuit Theory and Design (ECCTD'05), pp.105-108 , Aug. 2005.
[Abstract | pdf]

Optimization procedure of class E amplifiers using SPICE
Yuichi Tanji, Hiroo Sekiya, and Hideki Asai
2005 European Conference on Circuit Theory and Design (ECCTD2005), vol.3, pp.133-136, Aug. 2005.
[Abstract | pdf]

Resonant dc/dc converter with class E oscillator
Hiroyuki Hase, Hiroo Sekiya, Jianming Lu and Takashi Yahagi
2005 IEEE International Symposium on Circuits and Systems (ISCAS2005), pp.720-723, May 2005.
[Abstract | pdf]

Design and experimental results of resonant dc/dc converter with class E oscillator
Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
2005 RISP International Workshop on Nonlinear Circuit and Signal Processing (NCSP2005), pp.219-222, Mar. 2005.
[Abstract | pdf]

Incomplete shooting method for finding steady state responses of nonlinear circuits
Yuichi Tanji, Hiroo Sekiya, and Hideki Asai
2005 InternationalWorkshop on Nonlinear Circuits and Signal Processing (NCSP2005), pp.495-498, Mar. 2005.
[Abstract | pdf]

Design procedure for generalized class E amplifiers with implicit circuit equations
Hiroo Sekiya, Yuichi Tanji, Jianming Lu, and Takashi Yahagi
2004 International Symposium on Nonlinear Theory and its Appication (NOLTA2004), pp.303 - 306, Nov. 2004.
[Abstract | pdf]

Novel design procedure forMOSFET class E oscillator
Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, Takashi Yahagi
The 47th 2004 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS2004), July 2004.
[Abstract | pdf]

Class E inverter using thinned-out method
Muzafar Bin Mohd Yusoff, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
International Telecommunications Energy Conference (INTELEC2003), pp.451-459, Oct. 2003.
[Abstract | pdf]

Phase control for resonant dc/dc converter with class DE inverter and class E rectifier
Hiroo Sekiya, Shuichi Nemoto, Shuichi Nemoto, Jianming Lu, and Takashi Yahagi
The 20th European Conference on Circuit Theory and Design (ECCTD2003), no.II, pp.121-124, Sept. 2003.
[Abstract | pdf]

Design and analysis of class DE amplifier with any output Q, any duty ratio and switch on resistance
Hiroo Sekiya, Satoki Oshikawa, Jianming Lu, and Takashi Yahagi
2003 IEEE International Symposium on Circuits and Systems (ISCAS2003), pp.III-280-283, May 2003.
[Abstract | pdf]

Design and analysis of class DE-E dc/dc converters with any output Q of the inverter and any duty ratio
Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
The 2002 International Symposium on Nonlinear Theory and its Applications (NOLTA2002), pp.207-210, Oct. 2002.
[Abstract | pdf]

Design of generalized class E^2 dc/dc converter
Hiroo Sekiya, Jianming Lu, and Takashi Yahagi
2002 IEEE International Symposium on Circuits and Systems (ISCAS2002), pp.656-659, May 2002.
[Abstract | pdf]

Computation of design values for class E amplifier without using waveform equations
H. Sekiya, I. Sasase, S. Mori, J. Lu, and T. Yahagi
44th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS2001), pp.960-963, Aug. 2001.
[Abstract | pdf]

非同期パルス符号多重通信を用いた無線スパイキングニューラルネットワークの実装
太田温土，長澤龍司，林嘉穎，グエンキエン，鳥飼弘幸，長谷川幹雄，Won-Joo Hwang，関屋大雄
電子情報通信学会 複雑コミュニケーションサイエンス研究会, Mar. 2024.
[Abstract | pdf]

機械学習を用いた負荷非依存WPTシステムの設計手法
福田直輝，小宮山裕太郎，朱聞起，謝寅晨，駒中綾乃，小西晃央，グエンキエン，関屋大雄
電子通信エネルギー技術研究会（EE研）, vol.123, no.420, pp.6-11, Mar. 2024.
[Abstract | pdf]

Φ3 級電力発振器の解析と設計
小宮山裕太郎, 小西 晃央, 朱 聞起, 駒中 綾乃, グエンキエン, 関屋 大雄
電子情報通信学会電子通信エネルギー技術研究会, vol.123, no.343, pp.83-87, Jan. 2024.
[Abstract | pdf]

CC/CV 出力負荷非依存並列共振インバータの設計
朱 聞起, 駒中 綾乃, 小宮山裕太郎, グエンキエン, 関屋 大雄
電子通信エネルギー技術研究会（EE研), vol.123, no.343, pp.93-97, Jan. 2024.
[Abstract | pdf]

Research and Development on Wire-Free Robot by Wireless Communication and Wireless Power Transfer
Kazunobu Serizawa, Takayuki Matsumuro, Satoru Shimizu, and Hiroo Sekiya
電子情報通信学会革新的無線通信技術に関する横断型研究会, Oct. 2023.
[Abstract | pdf]

ワイヤフリーロボット実現に向けた負荷非依存多出力WPTシステム
小西晃央，小野寺健，小宮山裕太郎，グエンキエン，関屋大雄
2023年電気学会電子・情報・システム部門大会, GS5-7, pp.1318-1323, Sept. 2023.
[Abstract | pdf]

負荷非依存E/F級インバータを用いた多受電無線電力伝送システム
王　寒簫, 小宮山　裕太郎, 魏　秀欽, 小西　晃央, グエン　キエン, 関屋　大雄
電子情報通信学会電子通信エネルギー技術研究会 , vol.123, no.119, pp.61-66, July 2023.
[Abstract | pdf]

CC/CV出力負荷非依存高周波WPTシステムの設計
厳　佳欣, 朱　聞起, 小宮山　裕太郎, 小西　晃央, 魏　秀欽, グエンキエン, 関屋　大雄
電子情報通信学会電子通信エネルギー技術研究会, vol.123, no.119, pp.55-60, July 2023.
[Abstract | pdf]

負荷変動及び位置ずれに対してロバストな 6.78MHz 一送電多受電無線電力転送システム
王 寒簫, 小宮山 裕太郎, 魏 秀欽, グエン キエン, 関屋大雄
NOLTAソサイエティ大会, June 2023.
[Abstract | pdf]

バッテリー充電向け定電流/定電圧出力負荷非依存 WPT システムの設計
厳佳欣, 朱聞起, 小宮山 裕太郎, 謝寅晨, グエン・キエン, 関屋大雄
2023年NOLTAソサイエティ大会, no.NLS-41, June 2023.
[Abstract | pdf]

定電流給電と定電圧給電の双方が可能なE級負荷非依存インバータ回路
朱 聞起,駒中 綾乃,小宮山裕太郎,グエン・キエン, 関屋 大雄
電子情報通信学会電子通信エネルギー技術研究会(EE), Mar. 2023.
[Abstract | pdf]

非同期パルス符号多重通信を用いたWiBICの一応用
林　嘉穎、長澤 龍司、グエン　キエン、鳥飼　弘幸、長谷川　幹雄、キ ウォンジョーオー、関屋　大雄
信学技報, vol.122, no.453, pp.85-90, Mar. 2023.
[Abstract | pdf]

負荷非依存一定出力電流直列共振インバータ
小宮山裕太郎,朱聞起,グエンキエン,関屋大雄
電子情報通信学会電子通信エネルギー技術研究会(EE) EE2022-42, vol.122, no.343, pp.89-94, Jan. 2023.
[Abstract | pdf]

多受電無線電力伝送システムにおける最大効率追従制御
松田敏拓,小宮山裕太郎,朱聞起,グエンキエン,関屋大雄
電子情報通信学会電子通信エネルギー技術研究会(EE)EE2022-12, pp.22-26, July 2022.
[Abstract | pdf]

負荷変動に対するロバスト性を有するE級周波数2倍器の設計
謝寅晨,朱聞起,小宮山裕太郎,グエンキエン,関屋大雄
電子情報通信学会電子通信エネルギー技術研究会(EE), vol.122, no.109, pp.11-16, July 2022.
[Abstract | pdf]

多受電無線電力伝送システムにおける 最大効率追従制御
松田敏拓、小宮山裕太郎、朱聞起、グエンキエン、関屋大雄
2022年NOLTAソサイエティ大会, p.37, June 2022.
[Abstract | pdf]

Analysis and Desugn of Load-independent Class-E Frequency Multiplier
Yinchen Xie, Wenqi Zhu, Yutaro Komiyama, Kien Nguyen, Hiroo Sekiya
2022年NOLTA ソサエティ大会, June 2022.
[Abstract | pdf]

発見的手法とSPICEによる高周波電源設計最適化ソフトウェアの開発
平間　悠一,小宮山 裕太郎,朱　聞起,グエン　キエン,関屋　大雄
電気学会電子回路研究会　(ECT)　ECT-22-011, Mar. 2022.
[Abstract | pdf]

マルチホップ磁界共鳴無線電力伝送システムの動作原理と設計実装例
関屋大雄
電子情報通信学会無線通信システム研究会, vol. 121, no. 234 , pp.111-116, Nov. 2021.
[Abstract | pdf]

多ホップ多出力負荷非依存無線電力伝送システムの設計論
関屋大雄, 戸叶克輝, グエンキエン, 清水 聡, 芹澤和伸, 佐久間和司, 鈴木義規
電子情報通信学会電子通信エネルギー技術研究会（EE）EE2021-13, pp.6-11, Oct. 2021.
[Abstract | pdf]

多関節ロボットアームに向けた負荷非依存多出力マルチホップWPTシステム
戸叶克輝　朱聞起　グエンキエン　関屋大雄
電子情報通信学会電子通信エネルギー技術研究会（EE）EE2021-14, pp.12-17, Oct. 2021.
[Abstract | pdf]

負荷非依存ZVS並列共振インバータの解析と設計
駒中綾乃,朱聞起,魏秀欽,グエンキエン,関屋大雄
電気学会半導体電力変換研究会 (SPC) SPC-21-099, pp.26-31, July 2021.
[Abstract | pdf]

ロボットアームの実装に向けた負荷非依存マルチホップWPTシステムの設計
戸叶克輝,朱聞起,グエンキエン,関屋大雄
電気学会半導体電力変換研究会 (SPC) SPC-21-100, pp.32-37, July 2021.
[Abstract | pdf]

負荷非依存E級インバータにおける周波数制御
小宮山裕太郎,グエンキエン,三島大地,伊藤勇輝,上松武,関屋大雄
電子情報通信学会電子通信エネルギー技術研究会(EE)EE2021-8, vol.121, no.124, pp.6-11, July 2021.
[Abstract | pdf]

ヒューリスティックアルゴリズムを用いたE級スイッチング回路の設計手法
朱 聞起， 戸叶 克輝， グエン キエン， 関屋 大雄
電子情報通信学会電子通信エネルギー技術研究会（EE）EE2020-46, Mar. 2021.
[Abstract | pdf]

負荷非依存E^2級DC-DCコンバータの設計
大里辰希，魏秀欽，グエンキエン，関屋大雄
電子情報通信学会電子通信エネルギー技術研究会(EE)EE2020-45, pp.28-33, Mar. 2021.
[Abstract | pdf]

ヒューリスティックアルゴリズムを用いたE級スイッチング回路の設計手法
朱　聞起, 戸叶　克輝, グエン・キエン, 関屋 大雄
電子情報通信学会電子通信エネルギー技術研究会(EE)EE2020-46, pp.34-38, Mar. 2021.
[Abstract | pdf]

ロボットアーム向けマルチホップWPTシステムの最適設計
戸叶克輝, 朱　聞起, 大里辰希, グエン キエン, 関屋大雄
電子情報通信学会電子通信エネルギー技術研究会（EE）EE2020-11, Oct. 2020.
[Abstract | pdf]

任意の時比率における負荷非依存ZCS並列共振インバータの 解析と設計
駒中 綾乃，朱 聞起，関屋 大雄，グエンキエン，魏 秀欽
電子情報通信学会電子通信エネルギー技術研究会(EE)EE2019-53, Jan. 2020.
[Abstract | pdf]

E/F3 級インバータにおける解析と設計
馬 景悦，Asiya，魏 秀欽，グエンキエン，関屋 大雄
電子情報通信学会電子通信エネルギー技術研究会(EE)EE2019-54, Jan. 2020.
[Abstract | pdf]

ZCS並列共振発振器
松橋 秀弥，原 誉志郎，グエンキエン，関屋 大雄，上松 武，長岡 真吾，三島 大地
電子情報通信学会電子通信エネルギー技術研究会(EE)EE2019-55, Jan. 2020.
[Abstract | pdf]

アウトフェージングD級ZVS増幅器の設計
大里辰希，魏秀欽，グエンキエン，関屋大雄
半導体電力変換研究会(SPC), July 2019.
[Abstract | pdf]

負荷非依存E^-1級インバータの提案
小澤祐太, 魏秀欽, 関屋大雄
電子通信エネルギー技術研究会(EE), vol.118, no.387, pp.43-48, Jan. 2019.
[Abstract | pdf]

出力共振フィルタを省略したΦ級駆動回路の解析と実装
松原華子, 関屋大雄
電子通信エネルギー技術研究会(EE), vol.118, no.387, pp.37-41, Jan. 2019.
[Abstract | pdf]

Ap法およびKg法によるインダクタの最適設計ソフトウェア
岩崎茜, 関屋大雄
電子通信エネルギー技術研究会(EE), vol.118, no.387, pp.31-36, Jan. 2019.
[Abstract | pdf]

非対称時比率制御 D^2 級無線電力伝送システムの解析と設計
三田将平, 関屋大雄
電子通信エネルギー技術研究会(EE), vol.118, no.387, pp.25-30, Jan. 2019.
[Abstract | pdf]

D級整流器を用いた高周波磁界共鳴型無線電力伝送システムにおける最大効率追従制御
原誉志郎, 大里辰希, 関屋大雄
半導体電力変換研究会(SPC), July 2018.
[Abstract | pdf]

D級インバータ用SiCMOSFET高速駆動回路の設計
菅野瞭子，魏秀欽, 関屋大雄
半導体電力変換研究会(SPC), July 2018.
[Abstract | pdf]

MOSFETの逆並列ダイオードの動作を考慮した位相制御型D級インバータの解析
大里辰希, 魏秀欽, 関屋大雄
半導体電力変換研究会(SPC), July 2018.
[Abstract | pdf]

電圧クランプ機能を有する位相型制御D級ZVSインバータ回路の設計と制御
石原 裕介, 関屋 大雄
電子通信エネルギー技術研究会, vol.117, no.424, pp.41-46, Jan. 2018.
[Abstract | pdf]

非対称時比率制御D級ZVSインバータを用いた無線電力伝送システムの解析
三田 将平, 関屋 大雄
電子通信エネルギー技術研究会(EE), vol.117, no.424, pp.47-52, Jan. 2018.
[Abstract | pdf]

ZVS D級インバータと全波整流器を用いた非対称制御DC-DCコンバータの解析
三田 将平, 関屋 大雄
半導体電力変換研究会(SPC), July 2017.
[Abstract | pdf]

E級ZVSインバータに基づくSiC MOSFET高速駆動回路の解析
松原 華子, 魏 秀欽, 関屋 大雄
半導体電力変換研究会(SPC), July 2017.
[Abstract | pdf]

E^2級無線電力伝送システムにおける最大効率追従制御
小澤 祐太, 関屋 大雄
半導体電力変換研究会(SPC), July 2017.
[Abstract | pdf]

電流抑制機能を有する位相制御型D級ZVSインバータ回路の設計と制御
永田 雄大, 福本 佳樹, 池成 達也, 関屋 大雄
半導体電力変換研究会(SPC), July 2017.
[Abstract | pdf]

共振型ドライバにおけるダイオードによる電圧シフトの定常解析からの説明
松原 華子, 魏 秀欽, 関屋 大雄
電子通信エネルギー技術研究会(EE), May 2017.
[Abstract | pdf]

E/F3級整流器を用いたdc-dcコンバータの設計
村山 巧, 魏 秀欽, 関屋 大雄
電子情報通信学会電子通信エネルギー技術研究会, pp.101-105, Feb. 2017.
[Abstract | pdf]

E^2級とD-E級無線電力伝送システムの特性比較
野田 巧, 村山 巧, 関屋 大雄
電子通信エネルギー技術研究会, Nov. 2016.
[Abstract | pdf]

E級整流器における間引き/パルス密度変調制御の実験評価
岩崎 茜, 永島 和治, 関屋 大雄
電子情報通信学会電子通信エネルギー技術研究会, pp.43-48, Oct. 2016.
[Abstract | pdf]

E/F3 級整流器の提案と解析
村山 巧, 魏 秀欽, 関屋大雄
半導体電力変換研究会(SPC), July 2016.
[Abstract | pdf]

高調波共振を含むE級インバータに対する出力電力容量評価
孫 宇?, 魏 秀欽, 関屋 大雄
電子通信エネルギー技術研究会(EE), May 2016.
[Abstract | pdf]

絶縁型 E 級インバータを用いた SiC MOSFET 用駆動回路の解析的設計
菅野 瞭子，孫 宇，関屋 大雄, 引原 隆士
電子通信エネルギー技術研究会(EE), May 2016.
[Abstract | pdf]

磁気結合型無線電力伝送システムにおける最大効率化のための包括的設計手法
野田 巧, 永島 和治, 関屋 大雄
電子情報通信学会無線電力伝送研究会, vol.115, no.129, pp.31-36, July 2015.
[Abstract | pdf]

E級整流器におけるパルス密度変調制御の検討および実装
米澤 剛, 永島 和治, 魏 秀欽, 関屋 大雄
電子情報通信学会非線形問題研究会, vol.114, no.484, pp.57-61, Mar. 2015.
[Abstract | pdf]

零電圧スイッチングを達成するE^2級DC-DCコンバータの定電圧制御の検討
永島和治, 魏秀欽, 関屋大雄
電子情報通信学会非線形問題研究会, vol.114, no.414, pp.143-146, Jan. 2015.
[Abstract | pdf]

Analytical design of resonant inductively coupled wireless power transfer system with class-E2 DC-DC converter
Tomoharu Nagashima, Xiuqin Wei, and Hiroo Sekiya
The 1st Symposium on Semiconductor Power Conversion (S2PC), Oct. 2014.
[Abstract | pdf]

A loosely coupled wireless power transfer system with class-DE transmitter and multiple receivers
Kazuhide Inoue, Tomoharu Nagashima, and Hiroo Sekiya
The 1st Symposium on Semiconductor Power Conversion (S2PC), Oct. 2014.
[Abstract | pdf]

最適状態外におけるE^2級DC-DCコンバータの定常状態解析
永島和治, 魏秀欽, 関屋大雄
第27回　回路とシステムワークショップ, pp.7-12, Aug. 2014.
[Abstract | pdf]

E級増幅器を用いたEER送信機におけるMOSFETの非線形容量の影響
魏 秀欽, 永島 和治, 関屋 大雄, 末次 正
電子情報通信学会非線形問題研究会, pp.63-67, May 2014.
[Abstract | pdf]

E^2級DC-DCコンバータを用いた磁界共鳴型無線電力伝送システムの解析的設計
Tomoharu Nagashima, Kazuhide Inoue, Xiuqin Wei, and Hiroo Sekiya
電子情報通信学会無線電力伝送時限研究会, pp.23-27, Jan. 2014.
[Abstract | pdf]

Design of class-E inverter with inductive impedance inverter for achieving ZVS at any load resistance
Tomoharu Nagashima, Xiuqin Wei, Tadashi Suetsugu, and Hiroo Sekiya
2013 Japan-Korea Joint Technical Workshop on Semiconductor Power Converter, Oct. 2013.
[Abstract | pdf]

E_M級インバータを用いた共振型dc/dcコンバータ
関屋大雄,永島和治,魏秀欽
電子情報通信学会非線形問題研究会, pp.35-40, Oct. 2013.
[Abstract | pdf]

DE級送電器とE級整流器を用いた電磁誘導型無線電力伝送システムの設計
井上 一秀, 永島 和治, 関屋大雄, 畑本 浩伸, 清水 聡?
電気学会半導体電力変換研究会, July 2013.
[Abstract | pdf]

Behaviors of EER transmitter with class-E amplifier due to MOSFET parasitic capacitances
Xiuqin Wei, Tomoharu Nagashima, Hiroo Sekiya, and Tadashi Suetsugu
第２６回　回路とシステムワークショップ, pp.380-384, July 2013.
[Abstract | pdf]

EM級インバータとE級整流器から構成される高周波数高効率共振型コンバータ
関屋 大雄, 魏 秀欽, 永島 和治
第２６回　回路とシステムワークショップ, pp.273-278, July 2013.
[Abstract | pdf]

あらゆる負荷抵抗に対して零電圧スイッチングを達成する誘導性インピーダンス変換器を用いたE級インバータの設計
永島和治, 魏秀欽, 末次正, 関屋大雄
電子情報通信学会非線形問題研究会, vol.113, no.69, pp.71-75, May 2013.
[Abstract | pdf]

Parallel connected class D amplifiers for RF power source applications
Tadashi Suetsugu, Xiuqin Wei, Tomoharu Nagashima, and Hiroo Sekiya
電子情報通信学会非線形問題研究会, vol.112, no.487, pp.33-36, Mar. 2013.
[Abstract | pdf]

ドレイン電流の立ち下り時間を考慮したE_M級増幅器の解析
張 志才, 永島 和治, 魏 秀欽, 関屋 大雄
電子情報通信学会非線形問題研究会, vol.112, no.487, pp.37-42, Mar. 2013.
[Abstract | pdf]

Resonant class E rectifier for wireless power transfer in contactless IC card reader/writer
Tadashi Suetsugu, Xiuqin Wei, Kazunari Shimazaki, Tomoharu Nagashima, and Hiroo Sekiya
2012 Korea-Japan Joint Technical Workshop on Semiconductor Power Converter, pp.58-61, Nov. 2012.
[Abstract | pdf]

Comparisons of RF choke inductor designs by area product and core geometry
Hiroo Sekiya
2012 Korea-Japan Joint Technical Workshop on Semiconductor Power Converter, pp.45-49, Nov. 2012.
[Abstract | pdf]

E級増幅器におけるQ値に非依存な電力変換効率の解析的導出
永島 和治, 魏 秀欽, 高坂 拓司, 関屋 大雄
電子情報通信学会非線形問題研究会, vol.112, no.6, pp.115-120, Apr. 2012.
[Abstract | pdf]

分岐理論を用いたE級増幅器におけるスイッチング状態の分布
永島 和治, 魏 秀欽, 高坂 拓司, 関屋 大雄
電子情報通信学会非線形問題研究会, vol.111, no.276, pp.49-54, Nov. 2011.
[Abstract | pdf]

Push-Pull Class-EM Power Amplifier
Xiuqin Wei, Hiroo Sekiya, and Shingo Kuroiwa
第24回 回路とシステムワークショップ, pp.254 - 259, Aug. 2011.
[Abstract | pdf]

最適状態外におけるE級増幅器の動作
永島 和治, 関屋 大雄
第24回 回路とシステムワークショップ, pp.242 - 247, Aug. 2011.
[Abstract | pdf]

E_M級電力増幅回路によるEPWM送信機のドレーン効率に関する基礎検討
大山 修毅, 関屋 大雄, 太郎丸 眞, 末次 正
電子情報通信学会無線通信システム研究会, vol.111, no.145, pp.157-162, July 2011.
[Abstract | pdf]

理想的ではないパラメータにおける1 入力EM 級増幅器の動的挙動
中村竜太, 関屋大雄, 高坂拓司
電子情報通信学会非線形問題研究会, vol.111, no.106, pp.161-164, July 2011.
[Abstract | pdf]

低高調波歪みのための対称型E_M級電力増幅器
魏 秀欽, 永島 和治, 黒岩 眞吾, 関屋 大雄
電子情報通信学会非線形問題研究会, vol.111, no.106, pp.165-170, June 2011.
[Abstract | pdf]

最適状態外におけるE級増幅器の電力変換効率の解析表現
永島 和治, 魏 秀欽, 関屋 大雄
電子情報通信学会非線形問題研究会, vol.111, no.106, pp.171-175, June 2011.
[Abstract | pdf]

MOSFETのゲート-ドレイン間の寄生容量を考慮したE級増幅器の設計
魏 秀欽, 関屋 大雄, 黒岩 眞吾, 末次 正, Marian K. Kazimierczuk
第23回　回路とシステム軽井沢ワークショップ, pp.67 - 72, Apr. 2010.
[Abstract | pdf]

E_M 級電力増幅器における補助回路の設計
宮原 良介, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, vol.107, no.477, pp.31-36, Jan. 2008.
[Abstract | pdf]

インターリーブ型フルブリッジコンバータの設計
土肥 智美, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, vol.107, no.477, pp.37-40, Jan. 2008.
[Abstract | pdf]

インタリーブ型 E^2 級 dc/dc コンバータ
片山幹, 関屋大雄, 呂建明, 谷萩隆嗣
電気学会電子回路研究会, vol.ECT - 07 - 91, pp.15-20, Dec. 2007.
[Abstract | pdf]

位相制御を用いたインターリーブ型E^2 級dc/dc コンバータ
片山　幹, 関屋　大雄, 呂　建明, 谷萩　隆嗣
電子情報通信学会電子通信エネルギー技術研究会, pp.7-12, Nov. 2007.
[Abstract | pdf]

DE 級増幅器における非線形出力容量の影響
関屋大雄, 渡辺貴之, 末次正, 谷萩 隆嗣
電子情報通信学会電子通信エネルギー技術研究会, vol.EE 2007-43, pp.51-56, Nov. 2007.
[Abstract | pdf]

様々なQ値におけるシャントキャパシタの非線形性を考慮したDE級増幅器の設計
江沢 徹, 関屋 大雄, 呂 建明, 谷萩 隆嗣
第20回　回路とシステム軽井沢ワークショップ, pp.423-428, Apr. 2007.
[Abstract | pdf]

インターリーブ型位相制御E2級dc/dcコンバータ
片山 幹, 関屋 大雄, 呂 建明, 谷萩 隆嗣
第20回　回路とシステム軽井沢ワークショップ, pp.441 - 446, Apr. 2007.
[Abstract | pdf]

SPICEを用いたE級スイッチング回路の自動設計ツールの実装
関屋大雄, 江沢徹, 谷萩隆嗣
電子情報通信学会非線形問題研究会, vol.NLP2007-04, pp.37-42, Apr. 2007.
[Abstract | pdf]

様々なQ値におけるシャントキャパシタの非線形性を考慮したDE級増幅器の設計
江沢 徹, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会電子通信エネルギー技術研究会, vol.106, no.562, pp.41-46, Feb. 2007.
[Abstract | pdf]

E級スイッチング回路の数値計算法
江沢 徹, 関屋大雄, 呂 建明, 谷萩隆嗣
電子情報通信学会電子通信エネルギー技術研究会, pp.59-64, Jan. 2007.
[Abstract | pdf]

バンドパスフィルタを用いたDE級インバータの設計と評価
片山　幹, 長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会電子通信エネルギー技術研究会, pp.133-138, Jan. 2007.
[Abstract | pdf]

シャントキャパシタの非線形性を考慮したDE級増幅器の設計
渡辺 貴之, 関屋 大雄, 末次 正, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, vol.NLP2006-120, pp.51-56, Jan. 2007.
[Abstract | pdf]

シャントキャパシタの非線形性を考慮したDE級増幅器の解析
関屋 大雄, 渡辺 貴之, 末次 正, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, pp.39-44, Dec. 2006.
[Abstract | pdf]

最適状態外におけるDE級増幅器の動作解析
根岸 高弘, 関屋 大雄, 呂 建明, 谷萩 隆嗣
第19回　回路とシステム軽井沢ワークショップ, pp.319 - 324, Apr. 2006.
[Abstract | pdf]

バンドパスフィルタを用いたDE級増幅器の設計
片山 幹, 関屋 大雄, 呂 建明, 谷萩 隆嗣
第19回　回路とシステム軽井沢ワークショップ, pp.331-336, Apr. 2006.
[Abstract | pdf]

位相制御型E^2級dc/dcコンバータの実験的考察
浅野 努, 長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, pp.123-128, Jan. 2006.
[Abstract | pdf]

最適状態外におけるDE級増幅器の動作
根岸 高弘, 長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, pp.65-70, Jan. 2006.
[Abstract | pdf]

シャントキャパシタの非線形性を考慮したE級増幅器の設計
有福 庸二, 長谷 宏之, 関屋 大雄, 呂　建明, 谷萩 隆嗣
第18回　回路とシステム軽井沢ワークショップ, pp.299-304, Apr. 2005.
[Abstract | pdf]

E級発振器を用いた共振形dc/dc コンバータ
長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, vol.104, no.584, pp.1-6, Jan. 2005.
[Abstract | pdf]

シャントキャパシタの非線形性を考慮したE級増幅器の設計
有福 庸二, 長谷 之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, no.NLP2004-99, Jan. 2005.
[Abstract | pdf]

様々な設計仕様に対応可能なE級発振器の設計
長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
第17回　回路とシステム軽井沢ワークショップ, pp.1-6, Apr. 2004.
[Abstract | pdf]

周期性を有する電子回路の設計法
関屋 大雄, 丹治 裕一, 呂 建明, 谷萩 隆嗣
第17回　回路とシステム軽井沢ワークショップ, Apr. 2004.
[Abstract | pdf]

周期性を有する回路の設計法
関屋 大雄, 丹治 裕一, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, vol.NLP2003-185, pp.49-54, Mar. 2004.
[Abstract | pdf]

様々な設計仕様に対応可能なE級発振器の設計
長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, vol.NLP2003-152, Jan. 2004.
[Abstract | pdf]

DE-E級dc/dcコンバータの位相制御
根本 周市, 関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, vol.NLP2003-11, pp.1-6, June 2003.
[Abstract | pdf]

Design of class DE amplifier with any output Q, any duty ratio and switch on resistance
Satoki Oshikawa, Hiroo Sekiya, Jianming Lu, and Takashi Yahag
16th Workshop of Circuits and Systems at Karuizawa, pp.351-356, Apr. 2003.
[Abstract | pdf]

共振回路の Q 値およびスイッチの時比率とオン抵抗を考慮した DE-E級 dc/dc コンバータの設計
関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会非線形問題研究会, pp.7-12, Feb. 2003.
[Abstract | pdf]

一般化した E^2 級 dc/dc コンバータの設計
関屋 大雄, 呂 建明, 谷萩 隆嗣
電子情報通信学会通信エネルギー技術研究会, pp.33-40, Sept. 2001.
[Abstract | pdf]

遺伝的アルゴリズムを用いたE級WPTシステムの最適設計
朱 聞起， グエン キエン， 関屋 大雄
電子情報通信学会総合大会, Mar. 2021.
[Abstract | pdf]

MOSFETの寄生容量を考慮したE級発振器の解析と設計
海老原史弥, 魏秀欽, 関屋大雄
電気学会産業応用部門大会, Aug. 2019.
[Abstract | pdf]

低スイッチ電圧ストレスE^2級DC-DCコンバータの解析
小木雄介, 魏秀欽, 関屋大雄
電気学会産業応用部門大会, Aug. 2019.
[Abstract | pdf]

φ級インバータに基づいた高速駆動回路を用いたSiC MOSFET E級インバータ
與儀榛眞，魏秀欽，関屋大雄，引原隆士
信学技報, pp.pp49-52, July 2019.
[Abstract | pdf]

ハイサイドSiC向け高周波ソフトスイッチングドライバの設計
菅野 瞭子，魏秀欽，関屋大雄
2018年電子情報通信学会総合大会, no.A-1-4, Mar. 2018.
[Abstract | pdf]

E級スイッチング回路と高周波数無線電力伝送システム
関屋 大雄
電子情報通信学会通信エネルギー技術研究会, July 2017.
[Abstract | pdf]

Theory and design of wireless power transfer systems with inductive coupling
Hiroo Sekiya
2017 ShanghaiTech Workshop on Emerging Devices, Circuits and Systems (SWEDCS 2017), July 2017.
[Abstract | pdf]

PSOを用いた結合コイルの最適化を含めた磁気結合型無線電力伝送システムの設計手法
野田 巧, 永島 和治, 魏 秀欽, 関屋 大雄
2016年電子情報通信学会総合大会, Mar. 2016.
[Abstract | pdf]

分岐値計算手法を適用した位相制御型コンバータの設計手法
山田 裕太, 永田 雄大, 永島 和治, 関屋 大雄
2016年電子情報通信学会総合大会, Mar. 2016.
[Abstract | pdf]

E^2級dc/dc コンバータを用いた磁界結合型無線電力伝送システムの設計
君島 亜美, 井上 一秀, 永島 和治, 関屋 大雄
2013年電子情報通信学会総合大会, no.BCS-1-16, pp.S-48, Mar. 2013.
[Abstract | pdf]

1入力E_M級増幅器のエネルギー効率について
中村竜太, 関屋 大雄, 高坂 拓司
第64回電気関係学会九州支部連合大会, pp.09-2A-02, Sept. 2011.
[Abstract | pdf]

E級スイッチングを用いた低電圧大電流絶縁型dc/dcコンバータの設
狭川　なつみ, 関屋 大雄
2009年電子情報通信学会総合大会, Mar. 2009.
[Abstract | pdf]

EM 級増幅器の動作条件を達成する発振器の設計
宮原良介, 関屋大雄
2009年電子情報通信学会総合大会, no.A-1-36, p.36, Mar. 2009.
[Abstract | pdf]

様々なQ値におけるシャントキャパシタの非線形性を考慮したDE級増幅器の設計
江沢 徹, 関屋 大雄, 呂 建明, 谷萩 隆嗣
2007年電子情報通信学会ソサイエティ大会, pp.B-9-6, Sept. 2007.
[Abstract | pdf]

インターリーブ型E^2級dc/dcコンバータ
片山 幹, 関屋 大雄, 呂 建明, 谷萩 隆嗣
2007年電子情報通信学会ソサイエティ大会, pp.B-9-7, Sept. 2007.
[Abstract | pdf]

最適状態外におけるDE級増幅器の動作
根岸 高弘, 長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
2006年電子情報通信学会総合大会, Mar. 2006.
[Abstract | pdf]

位相制御型E^2級dc/dcコンバータの実験的考察
浅野 努, 長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
2006年電子情報通信学会総合大会, Mar. 2006.
[Abstract | pdf]

シミュレータを用いたスイッチング電源の設計
関屋 大雄, 長谷 宏之, 丹治 裕一, 呂 建明, 谷萩 隆嗣
2004年電子情報通信学会ソサイエティ大会, no.B-9-4, p.229, Sept. 2004.
[Abstract | pdf]

E級発振器を用いた共振形dc/dcコンバータ
長谷 宏之, 関屋 大雄, 呂 建明, 谷萩 隆嗣
2004年電子情報通信学会ソサエティ大会, pp.A-1-2, Sept. 2004.
[Abstract | pdf]

(チュートリアル講演) 動作モデリングとシミュレーション? 現状と課題?
丹治裕一, 関屋大雄
2004年電子情報通信学会ソサエティ大会, pp.AT-1-4, Sept. 2004.
[Abstract | pdf]

あらゆる条件下における DE 級インバータの設計方法
押川 悟己, 関屋 大雄, 呂 建明, 谷萩 隆嗣
2002年電子情報通信学会総合大会, pp.B-9-1, Mar. 2002.
[Abstract | pdf]