Search Results - "Nakakohara, Yusuke"

Three-Phase LLC Series Resonant DC/DC Converter Using SiC MOSFETs to Realize High-Voltage and High-Frequency Operation by Nakakohara, Yusuke, Otake, Hirotaka, Evans, Tristan M., Yoshida, Tomohiko, Tsuruya, Mamoru, Nakahara, Ken

“…SiC MOSFETs are applied to constitute a three-phase, 5-kW LLC series resonant dc/dc converter with isolation transformers. A switching frequency of around 200…”
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Electrothermal Cosimulation for Predicting the Power Loss and Temperature of SiC MOSFET Dies Assembled in a Power Module by Nakamura, Yohei, Evans, Tristan M., Kuroda, Naotaka, Sakairi, Hiroyuki, Nakakohara, Yusuke, Otake, Hirotaka, Nakahara, Ken

“…The electrothermal cosimulation proposed in this paper accurately reproduces the power loss and the temperature of the silicon carbide (SiC)…”
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Magnetic Near-Field Strength Prediction of a Power Module by Measurement-Independent Modeling of Its Structure by Kashiwagi, Junichi, Sakairi, Hiroyuki, Otake, Hirotaka, Nakakohara, Yusuke, Nakahara, Ken

“…This paper presents a simulation scheme based on the S-parameters for simultaneously predicting the circuit operation of a power module (PM) and its consequent…”
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Single crystallization of Ba8AlxSi46−x clathrate for improvement of thermoelectric properties by Mugita, Naoki, Nakakohara, Yusuke, Teranishi, Ryo, Munetoh, Shinji

“…We have synthesized single- and polycrystal Ba8AlxSi46−x clathrates to compare their thermoelectric properties. Single-crystal sample was prepared by…”
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A Fanless Operating Trans-Linked Interleaved 5 kW Inverter Using SiC MOSFETs to Achieve 99% Power Conversion Efficiency by Miyazaki, Tatsuya, Otake, Hirotaka, Nakakohara, Yusuke, Tsuruya, Mamoru, Nakahara, Ken

“…A trans-linked interleaved inverter using silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors (MOSFETs) achieves a power conversion…”
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Single crystallization of Ba 8 Al x Si 46− x clathrate for improvement of thermoelectric properties by Mugita, Naoki, Nakakohara, Yusuke, Teranishi, Ryo, Munetoh, Shinji

“…We have synthesized single- and polycrystal Ba 8 Al x Si 46− x clathrates to compare their thermoelectric properties. Single-crystal sample was prepared by…”
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A 13.56 MHz wireless power transmission systems with enhancement-mode GaN high electron mobility transistors by Nakakohara, Yusuke, Kashiwagi, Junichi, Fujiwara, Tetsuya, Akutsu, Minoru, Ito, Norikazu, Chikamatsu, Kentaro, Yamaguchi, Astushi, Nakahara, Ken

“…Enhancement-mode GaN-HEMT devices with a newly developed recessed-gate structure were fabricated. These devices were capable of operating at up to 30 MHz…”
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