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Compact AC noise filter with ground inductor

  • US 5,475,347 A
  • Filed: 08/02/1994
  • Issued: 12/12/1995
  • Est. Priority Date: 10/30/1993
  • Status: Expired due to Fees
First Claim
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1. A compact AC noise filter comprising:

  • a plug connector assembly of electrically insulating material including a support wall from which forwardly extends an electrically conductive ground terminal and two electrically conductive power supply terminals and an electrically conductive ground tab connected to the ground terminal, extending rearwardly from said support wall;

    a filter assembly housing of electrically insulating material attached to said plug connector assembly, said filter assembly housing having a recess, and a cavity which is physically and electrically isolated from said recess;

    an electrically conductive shielding member located on said plug connector assembly and said filter assembly housing;

    means within said filter assembly housing to electronically filter noise of an inputted AC signal, including at least one capacitor, and first and second inductors;

    said first inductor mounted in said filter assembly housing within said recess, and said second inductor mounted in said cavity and including a coil having ends respectively electrically connected to said ground tab and said shielding member.

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