Tomoharu Nagashima

According to our database, Tomoharu Nagashima authored at least 21 papers between 2011 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2023

Development of multi-stage optical variable attenuator system and its control method for wafer inspection system.

Tomoharu Nagashima, Hisaaki Kanai

IEICE Electron. Express, 2023

2017

Steady-State Analysis of Isolated Class-E² Converter Outside Nominal Operation.

Tomoharu Nagashima, Xiuqin Wei, Elisenda Bou, Eduard Alarcón, Marian K. Kazimierczuk, Hiroo Sekiya

IEEE Trans. Ind. Electron., 2017

2016

Design procedure for wireless power transfer system with inductive coupling-coil optimizations using PSO.

Takumi Noda, Tomoharu Nagashima, Xiuqin Wei, Marian K. Kazimierczuk, Hiroo Sekiya

Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

2015

Analysis and Design of Loosely Inductive Coupled Wireless Power Transfer System Based on Class-E² DC-DC Converter for Efficiency Enhancement.

Tomoharu Nagashima, Xiuqin Wei, Elisenda Bou, Eduard Alarcón, Marian K. Kazimierczuk, Hiroo Sekiya

IEEE Trans. Circuits Syst. I Regul. Pap., 2015

Design of a DC-DC Converter With Phase-Controlled Class-D ZVS Inverter.

Yuta Yamada, Tomoharu Nagashima, Yoshifumi Ibuki, Yoshiki Fukumoto, Tatsuya Ikenari, Hiroo Sekiya

IEEE J. Emerg. Sel. Topics Circuits Syst., 2015

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 Alarcón, Hiroo Sekiya

Proceedings of the 2015 IEEE International Symposium on Circuits and Systems, 2015

2014

Waveform Equations, Output Power, and Power Conversion Efficiency for Class-E Inverter Outside Nominal Operation.

Tomoharu Nagashima, Xiuqin Wei, Tadashi Suetsugu, Marian K. Kazimierczuk, Hiroo Sekiya

IEEE Trans. Ind. Electron., 2014

Analysis and Design of Class-𝔼_𝕄 Power Amplifier.

Xiuqin Wei, Tomoharu Nagashima, Marian K. Kazimierczuk, Hiroo Sekiya, Tadashi Suetsugu

IEEE Trans. Circuits Syst. I Regul. Pap., 2014

Locking Range Derivations for Injection-Locked Class-E Oscillator Applying Phase Reduction Theory.

Tomoharu Nagashima, Xiuqin Wei, Hisa-Aki Tanaka, Hiroo Sekiya

IEEE Trans. Circuits Syst. I Regul. Pap., 2014

Analytical design procedure for resonant inductively coupled wireless power transfer system with class-E² DC-DC converter.

Tomoharu Nagashima, Kazuhide Inoue, Xiuqin Wei, Elisenda Bou, Eduard Alarcón, Marian K. Kazimierczuk, Hiroo Sekiya

Proceedings of the IEEE International Symposium on Circuits and Systemss, 2014

Numerical algorithm for distribution-map derivations of switching converters.

Yuta Yamada, Tomoharu Nagashima, Yoshifumi Ibuki, Yoshiki Fukumoto, Hiroo Sekiya

Proceedings of the IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, Dallas, TX, USA, October 29, 2014

Analytical design procedure for resonant inductively coupled wireless power transfer system with class-DE inverter and class-E rectifier.

Tomoharu Nagashima, Xiuqin Wei, Hiroo Sekiya

Proceedings of the 2014 IEEE Asia Pacific Conference on Circuits and Systems, 2014

Class E2 resonant non-radiative Wireless Power Transfer link: A design-oriented joint circuit-system co-characterization approach.

Elisenda Bou, Tomoharu Nagashima, Hiroo Sekiya, Eduard Alarcón

Proceedings of the IEEE 11th International Multi-Conference on Systems, Signals & Devices, 2014

2013

High-frequency high-efficiency resonant converter with class-EM inverter and class-E rectifier.

Hiroo Sekiya, Xiuqin Wei, Tomoharu Nagashima

Proceedings of the IEEE 56th International Midwest Symposium on Circuits and Systems, 2013

Effect of MOSFET parasitic capacitances on EER transmitter with class-E amplifier.

Xiuqin Wei, Tomoharu Nagashima, Hiroo Sekiya, Tadashi Suetsugu

Proceedings of the 2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013

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

Proceedings of the IECON 2013, 2013

Inductively coupled wireless power transfer with class-E² DC-DC converter.

Tomoharu Nagashima, Kazuhide Inoue, Xiuqin Wei, Elisenda Bou, Eduard Alarcón, Hiroo Sekiya

Proceedings of the 21st European Conference on Circuit Theory and Design, 2013

2012

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, Hiroo Sekiya

IEEE Trans. Circuits Syst. I Regul. Pap., 2012

Design of Class-E_M Oscillator With Second Harmonic Injection.

Ryosuke Miyahara, Xiuqin Wei, Tomoharu Nagashima, Takuji Kousaka, Hiroo Sekiya

IEEE Trans. Circuits Syst. I Regul. Pap., 2012

Inductively coupled wireless power transfer with class-DE power amplifier.

Tomoharu Nagashima, Xiuqin Wei, Tadashi Suetsugu, Hiroo Sekiya

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2012

2011

Power conversion efficiency of class-E power amplifier outside nominal operation.

Tomoharu Nagashima, Xiuqin Wei, Hiroo Sekiya, Marian K. Kazimierczuk

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2011), 2011