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Title: Current limiter circuit system

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:
;
Issue Date:
OSTI Identifier:
1378937
Assignee:
National Technology & Engineering Solutions of Sandia, LLC SNL-A
Patent Number(s):
9,755,428
Application Number:
14/854,169
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2015 Sep 15
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Other works cited in this record:

Circuit for controlling the load current level in a transistor
patent, June 1987

Linear power regulator with current limiting and thermal shutdown and recycle
patent, November 1990

Overcurrent trip circuit
patent, January 1993

LAN interface with simplified overcurrent protection
patent, August 1996

Current limit protection circuit for a voltage regulator
patent, October 2002

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