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SE9903137D0 - An arrangement for protecting a DC source - Google Patents

An arrangement for protecting a DC source

Info

Publication number
SE9903137D0
SE9903137D0 SE9903137A SE9903137A SE9903137D0 SE 9903137 D0 SE9903137 D0 SE 9903137D0 SE 9903137 A SE9903137 A SE 9903137A SE 9903137 A SE9903137 A SE 9903137A SE 9903137 D0 SE9903137 D0 SE 9903137D0
Authority
SE
Sweden
Prior art keywords
switch
current
load
turned
overcurrents
Prior art date
Application number
SE9903137A
Other languages
Swedish (sv)
Other versions
SE9903137L (en
Inventor
Nils Baeckman
Jan-Olof Classon
Kjell Rolleberg
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9903137A priority Critical patent/SE9903137L/en
Priority to SE516363D priority patent/SE516363C2/en
Publication of SE9903137D0 publication Critical patent/SE9903137D0/en
Priority to PCT/SE2000/001442 priority patent/WO2001018933A1/en
Priority to CN00812484A priority patent/CN1372712A/en
Priority to AU60434/00A priority patent/AU6043400A/en
Publication of SE9903137L publication Critical patent/SE9903137L/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for DC applications
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of DC component by short circuits in AC networks

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

To protect a DC voltage source (1), connected to a load (2), against overcurrents, a first switch (SW1) in series with a current limiting resistor (R1) is connected in series with the load (2), and a second switch (SW2) is connected in parallel with the first switch (SW1) and the current limiting resistor (R1). Said first and second switches (SW1, SW2) are turned on in the absence of overcurrents. Upon an overcurrent, said second switch (SW2) is turned off. A transient detector (9) is connected to detect transient overcurrents. Upon a transient overcurrent, said second switch (SW2) is turned on when the current has decayed to a predetermined value (ION) to supply the load (2) with a decreasing current via the first switch (SW1) and the current limiting resistor (R1), and a correspondingly increasing current via the second switch (SW2) until the load (2) is supplied with current only via the second switch (SW2).
SE9903137A 1999-09-06 1999-09-06 Device for protecting a direct current source SE9903137L (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9903137A SE9903137L (en) 1999-09-06 1999-09-06 Device for protecting a direct current source
SE516363D SE516363C2 (en) 1999-09-06 1999-09-06 Overcurrent protector for DC voltage source, turns ON one switch based on transient current through other switch and current limiting resistor
PCT/SE2000/001442 WO2001018933A1 (en) 1999-09-06 2000-07-06 An arrangement for protecting a dc source
CN00812484A CN1372712A (en) 1999-09-06 2000-07-06 An arrangement for protecting a DC source
AU60434/00A AU6043400A (en) 1999-09-06 2000-07-06 An arrangement for protecting a dc source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903137A SE9903137L (en) 1999-09-06 1999-09-06 Device for protecting a direct current source

Publications (2)

Publication Number Publication Date
SE9903137D0 true SE9903137D0 (en) 1999-09-06
SE9903137L SE9903137L (en) 2001-03-07

Family

ID=20416864

Family Applications (2)

Application Number Title Priority Date Filing Date
SE516363D SE516363C2 (en) 1999-09-06 1999-09-06 Overcurrent protector for DC voltage source, turns ON one switch based on transient current through other switch and current limiting resistor
SE9903137A SE9903137L (en) 1999-09-06 1999-09-06 Device for protecting a direct current source

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SE516363D SE516363C2 (en) 1999-09-06 1999-09-06 Overcurrent protector for DC voltage source, turns ON one switch based on transient current through other switch and current limiting resistor

Country Status (4)

Country Link
CN (1) CN1372712A (en)
AU (1) AU6043400A (en)
SE (2) SE516363C2 (en)
WO (1) WO2001018933A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1724899B1 (en) * 2005-05-17 2016-08-03 Continental Automotive GmbH Apparatus for short circuit protection
WO2007000062A1 (en) * 2005-06-29 2007-01-04 Abb Research Ltd. Apparatus for the detection of a current and method for operating such an apparatus
CN102684178B (en) * 2011-03-11 2015-05-06 同方泰德国际科技(北京)有限公司 Multi-output circuit using power supply load short-circuit protection circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640446A1 (en) * 1996-09-30 1998-04-16 Siemens Ag Over-current protection circuit arrangement

Also Published As

Publication number Publication date
SE9903137L (en) 2001-03-07
SE516363C2 (en) 2002-01-08
CN1372712A (en) 2002-10-02
WO2001018933A1 (en) 2001-03-15
AU6043400A (en) 2001-04-10

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Legal Events

Date Code Title Description
NUG Patent has lapsed