Quasi-duality between SS and SP topologies of basic electric-field coupling wireless power transfer system von Ishihara, M, Umetani, K, Umegami, H, Hiraki, E, Yamamoto, M

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Basic analysis of false turn-on phenomenon of power semiconductor devices with parasitic inductances von Umegami, H, Ishibashi, H, Nanamori, K, Hattori, F, Yamamoto, M

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A novel high efficiency gate drive circuit for normally off type GaN-FET von Umegami, H., Nozaki, Y., Yamamoto, M., Machida, O.

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Drive loss analysis and comparison of capacitor-less gate drive circuit for GaN FETs with capacitor type gate drive circuits von Hattori, F., Umegami, H., Yoshida, T., Yamamoto, M.

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