| 摘要 |
Two torus (T1-2) are respectively made from a nanocrystalline, and ferrite materials having different magnetic permeabilities. The saturation induction of the nanocrystalline material is equal to or greater than the saturation induction of the ferrite material. Nanocrystalline material magnetic permeability is equal to or greater than three up to 50000 times the ferrite material magnetic permeability at a frequency of 10 kHz of a current flowing through the windings. This feature prevents the common-mode inductor (LF) from saturating in the resonant frequency range of the filter. An independent claim is included for a speed variator.
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