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Electromagnetic interference filter for an autotransformer

  • US 20060056207A1
  • Filed: 09/15/2004
  • Published: 03/16/2006
  • Est. Priority Date: 09/15/2004
  • Status: Active Grant
First Claim
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1. A rectification and EMI filter system for attenuating electromagnetic interference, comprising:

  • a pulse rectification autotransformer having first, second and third input nodes and first, second and third output nodes;

    a first output capacitor coupled to the first and second output nodes;

    a second output capacitor coupled to the second and third output nodes; and

    wherein at least the first output capacitor and an inductance associated with the autotransformer form an LC filter circuit configured to attenuate the EMI prior to rectification.

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