Current limiter circuit system

Witcher, Joseph Brandon; Bredemann, Michael V.

Title: Current limiter circuit system

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Abstract

An apparatus comprising a steady state sensing circuit, a switching circuit, and a detection circuit. The steady state sensing circuit is connected to a first, a second and a third node. The first node is connected to a first device, the second node is connected to a second device, and the steady state sensing circuit causes a scaled current to flow at the third node. The scaled current is proportional to a voltage difference between the first and second node. The switching circuit limits an amount of current that flows between the first and second device. The detection circuit is connected to the third node and the switching circuit. The detection circuit monitors the scaled current at the third node and controls the switching circuit to limit the amount of the current that flows between the first and second device when the scaled current is greater than a desired level.

Inventors:: Witcher, Joseph Brandon; Bredemann, Michael V.

Issue Date:: 2017-09-05

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1378937

Patent Number(s):: 9755428

Application Number:: 14/854,169

Assignee:: National Technology & Engineering Solutions of Sandia, LLC

Patent Classifications (CPCs):: H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

G - PHYSICS G05 - CONTROLLING G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

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H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H7/1227 - {responsive to abnormalities in the output circuit, e.g. short circuit}
H02H9/02 - responsive to excess current {
H02H7/1222 - {responsive to abnormalities in the input circuit, e.g. transients in the DC input}

G - PHYSICS G05 - CONTROLLING G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
G05F1/573 - with overcurrent detector

H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H9/025 - {Current limitation using field effect transistors}
H02H3/087 - for dc applications

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DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Resource Relation:: Patent File Date: 2015 Sep 15

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Witcher, Joseph Brandon, and Bredemann, Michael V. Current limiter circuit system.  United States: N. p., 2017. 
        Web.

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                    Witcher, Joseph Brandon, & Bredemann, Michael V. Current limiter circuit system.  United States.

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                    Witcher, Joseph Brandon, and Bredemann, Michael V. Tue .  
        "Current limiter circuit system".  United States.  https://www.osti.gov/servlets/purl/1378937.

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@article{osti_1378937,

  title        = {Current limiter circuit system},

  author       = {Witcher, Joseph Brandon and Bredemann, Michael V.},

  abstractNote = {An apparatus comprising a steady state sensing circuit, a switching circuit, and a detection circuit. The steady state sensing circuit is connected to a first, a second and a third node. The first node is connected to a first device, the second node is connected to a second device, and the steady state sensing circuit causes a scaled current to flow at the third node. The scaled current is proportional to a voltage difference between the first and second node. The switching circuit limits an amount of current that flows between the first and second device. The detection circuit is connected to the third node and the switching circuit. The detection circuit monitors the scaled current at the third node and controls the switching circuit to limit the amount of the current that flows between the first and second device when the scaled current is greater than a desired level.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2017},

  month        = {9}

}

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