A just Comparison of Ferrite and Nanocristalline Common Mode Chokes

Konferenz: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
10.05.2016 - 12.05.2016 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2016

Seiten: 8Sprache: EnglischTyp: PDF

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Schliewe, Joern (EPCOS AG, Heidenheim, Germany)
Paulwitz, Christian (EPCOS AG, Regensburg, Germany)
Weber, Stefan (EPCOS AG, München, Germany)

Based on our EMC lab experience we look into the reason why ferrite common mode chokes outperform nanocristalline counterparts in many practical applications. For a fair comparison, designs with same impedance at 150 kHz crucial frequency have been investigated. At the expense of a 30% larger size the ferrite common mode chokes gain better EMI noise reduction for common mode and differential mode noise sources.