EMC - RFI filters brochure，PDF

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  <a href="http://www&#46;arcotronics&#46;ltd&#46;uk/pdf/emc&#46;pdf" target="_blank"><font color="#ff0000">EMC - RFI filters brochure</font></a> The origin of RFI is always a rapid change in current or voltage&#46; This sinusoidal distortion leads to rectangular or similar waveforms with harmonics along the whole frequency spectrum, <font color="#0000ff">pdf file</font>