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Planar printed circuit-board transformers with effective electromagnetic interference (EMI) shielding

  • US 6,888,438 B2
  • Filed: 10/28/2002
  • Issued: 05/03/2005
  • Est. Priority Date: 06/15/2001
  • Status: Expired due to Term
First Claim
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1. A planar printed circuit board transformer comprising at least one conductive sheet located over a ferrite plate, said plate being located over a winding, for electromagnetic shielding.

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