GB1517443A - Electrical overload protection circuit - Google Patents

Electrical overload protection circuit

Info

Publication number
GB1517443A
GB1517443A GB2773476A GB2773476A GB1517443A GB 1517443 A GB1517443 A GB 1517443A GB 2773476 A GB2773476 A GB 2773476A GB 2773476 A GB2773476 A GB 2773476A GB 1517443 A GB1517443 A GB 1517443A
Authority
GB
United Kingdom
Prior art keywords
protection circuit
overload protection
transistor
electrical overload
july
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2773476A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
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 Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH filed Critical Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Publication of GB1517443A publication Critical patent/GB1517443A/en
Expired legal-status Critical Current

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

Landscapes

  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Dc-Dc Converters (AREA)

Abstract

1517443 Overcurrent protection GRUNDIG EMV 2 July 1976 [4 July 1975] 27734/76 Heading H2K An overcurrent protection circuit comprises a normally-on pnp transistor 11 and currentsensing resistor 10 in series in the current path, and a normally-off transistor 12 which is switched on when the voltage across the resistor 10 becomes excessive, thereby switching off transistor 11 to interrupt the current. The circuit can only be reset by removing the voltage supply U Sp . (For Figure see next column.)
GB2773476A 1975-07-04 1976-07-02 Electrical overload protection circuit Expired GB1517443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752529883 DE2529883B1 (en) 1975-07-04 1975-07-04 Circuit arrangement for overload protection

Publications (1)

Publication Number Publication Date
GB1517443A true GB1517443A (en) 1978-07-12

Family

ID=5950663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2773476A Expired GB1517443A (en) 1975-07-04 1976-07-02 Electrical overload protection circuit

Country Status (3)

Country Link
DE (1) DE2529883B1 (en)
FR (1) FR2316848A7 (en)
GB (1) GB1517443A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139437A (en) * 1983-04-18 1984-11-07 United Technologies Corp Resistive circuit detector
WO2009104980A1 (en) * 2008-02-18 2009-08-27 Закрытое Акционерное Общество "Когерент" Power supply device for electric appliances located in an explosive medium (variants)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138645A1 (en) * 1981-09-29 1983-04-14 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart "ELECTRONIC OVERCURRENT PROTECTION DEVICE"
FR2535917A1 (en) * 1982-11-04 1984-05-11 Skm Sa METHOD FOR SUPPLYING CONTINUOUS HIGH VOLTAGE TO AN ELECTROSTATIC SPRAYING APPARATUS AND DEVICE FOR CARRYING OUT THE METHOD
DE3425235C1 (en) * 1984-07-14 1992-03-12 bso Steuerungstechnik GmbH, 6603 Sulzbach Circuit arrangement for protecting electronic circuits against overvoltage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139437A (en) * 1983-04-18 1984-11-07 United Technologies Corp Resistive circuit detector
WO2009104980A1 (en) * 2008-02-18 2009-08-27 Закрытое Акционерное Общество "Когерент" Power supply device for electric appliances located in an explosive medium (variants)

Also Published As

Publication number Publication date
DE2529883B1 (en) 1976-05-06
FR2316848A7 (en) 1977-01-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee