Shielded multi-stage EMI noise filter

Title: Shielded multi-stage EMI noise filter

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Abstract

Electromagnetic interference (EMI) noise filter embodiments and methods for filtering are provided herein. EMI noise filters include multiple signal exclusion enclosures. The multiple signal exclusion enclosures contain filter circuit stages. The signal exclusion enclosures can attenuate noise generated external to the enclosures and/or isolate noise currents generated by the corresponding filter circuits within the enclosures. In certain embodiments, an output of one filter circuit stage is connected to an input of the next filter circuit stage. The multiple signal exclusion enclosures can be chambers formed using conductive partitions to divide an outer signal exclusion enclosure. EMI noise filters can also include mechanisms to maintain the components of the filter circuit stages at a consistent temperature. For example, a metal base plate can distribute heat among filter components, and an insulating material can be positioned inside signal exclusion enclosures.

Inventors:: Kisner, Roger Allen; Fugate, David Lee

Issue Date:: 2016-11-08

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1331155

Patent Number(s):: 9,490,766

Application Number:: 14/180,119

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 Feb 13

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Kisner, Roger Allen, and Fugate, David Lee. Shielded multi-stage EMI noise filter.  United States: N. p., 2016. 
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                    Kisner, Roger Allen, & Fugate, David Lee. Shielded multi-stage EMI noise filter.  United States.

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                    Kisner, Roger Allen, and Fugate, David Lee. Tue .  
        "Shielded multi-stage EMI noise filter".  United States.  https://www.osti.gov/servlets/purl/1331155.

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@article{osti_1331155,

  title        = {Shielded multi-stage EMI noise filter},

  author       = {Kisner, Roger Allen and Fugate, David Lee},

  abstractNote = {Electromagnetic interference (EMI) noise filter embodiments and methods for filtering are provided herein. EMI noise filters include multiple signal exclusion enclosures. The multiple signal exclusion enclosures contain filter circuit stages. The signal exclusion enclosures can attenuate noise generated external to the enclosures and/or isolate noise currents generated by the corresponding filter circuits within the enclosures. In certain embodiments, an output of one filter circuit stage is connected to an input of the next filter circuit stage. The multiple signal exclusion enclosures can be chambers formed using conductive partitions to divide an outer signal exclusion enclosure. EMI noise filters can also include mechanisms to maintain the components of the filter circuit stages at a consistent temperature. For example, a metal base plate can distribute heat among filter components, and an insulating material can be positioned inside signal exclusion enclosures.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {11}

}

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