Electric Power Conversion System Engineering

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	Prof.HIRAKI Eiji E-mail: hiraki＠(okayama-u.ac.jp) Power Electronics   Directory of Researchers
	Assoc. Prof. UMETANI Kazuhiro E-mail: p9wr43cd＠(okayama-u.ac.jp) Power Electronics   Directory of Researchers
	Asst. Prof. ISHIHARA Masataka E-mail: pwuo6xji＠(okayama-u.ac.jp) Power Electronics   Directory of Researchers

The following are examples of specific research topics.

・SR motor drive method that achieves both low torque ripple and low input current ripple
・High power density three-phase inverters using GaN-HEMTs for EV applications
・Stable resonant inductive coupling wireless power transfer system independent of manufacturing variation and magnetic interference
・High frequency resonant inverter for plasma generator applications
・Ultra-thin and low-loss coils for IH cooking heaters
・Rectifier-integrated printed-circuit-board winding structures