IEEJ Journal of Industry Applications
Online ISSN : 2187-1108
Print ISSN : 2187-1094
ISSN-L : 2187-1094

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Reduction of MHz Electromagnetic Ringing Losses in Magnetic Materials under GaN Inverter Excitation using Low-Pass Filter
Masataka MinamiRyugo KuritaTenshin KamaharaKeisuke Fujisaki
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論文ID: L24000314

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High-speed switching with wide bandgap semiconductor switches is increasingly being applied to motor drive sys- tems in electric vehicles. However, the MHz ringing phenomenon caused by high-speed switching leads to an increase in losses in magnetic materials of the motors. This letter proposes a low-pass filter (LPF) to suppress the MHz ringing phenomenon. And, it demonstrates that the use of the proposed LPF results in the reduction of iron and copper losses.

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