FR2391582A1 - Montage a thyristor avec protection contre les surtensions - Google Patents

Montage a thyristor avec protection contre les surtensions

Info

Publication number
FR2391582A1
FR2391582A1 FR7813992A FR7813992A FR2391582A1 FR 2391582 A1 FR2391582 A1 FR 2391582A1 FR 7813992 A FR7813992 A FR 7813992A FR 7813992 A FR7813992 A FR 7813992A FR 2391582 A1 FR2391582 A1 FR 2391582A1
Authority
FR
France
Prior art keywords
thyristor
diode
circuit
overvoltage protection
avalanche diode
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.)
Withdrawn
Application number
FR7813992A
Other languages
English (en)
Inventor
Gunnar Asplund
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Publication of FR2391582A1 publication Critical patent/FR2391582A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0824—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in thyristor switches

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Power Conversion In General (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

Montage à thyristor avec protection contre les surtensions, comprenant un thyristor et une diode à avalanche connectée en parallèle sur ce thyristor, ainsi qu'un dispositif générateur d'impulsions d'amorçage pour ce thyristor dont le fonctionnement est influencé par le courant débité par la diode à avalanche, cette diode étant elle-même branchée en série avec un condensateur associé à une résistance de décharge. Afin que la diode à avalanche 3 se décharge pour une certaine valeur de la charge du thyristor, le condensateur 4 et sa résistance de décharge 6 sont dimensionnés de manière à constituer un circuit de simulation de la charge instantanée de la diode, ce circuit commandant le dispositif générateur d'impulsions d'amorçage 2 pour en provoquer l'intervention lorsqu'est atteinte ladite valeur de la charge. Application notamment à la réalisation de convertisseurs statiques à haute tension.
FR7813992A 1977-05-17 1978-05-11 Montage a thyristor avec protection contre les surtensions Withdrawn FR2391582A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7705762A SE406846B (sv) 1977-05-17 1977-05-17 Tyristorkoppling med overspenningsskydd

Publications (1)

Publication Number Publication Date
FR2391582A1 true FR2391582A1 (fr) 1978-12-15

Family

ID=20331354

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813992A Withdrawn FR2391582A1 (fr) 1977-05-17 1978-05-11 Montage a thyristor avec protection contre les surtensions

Country Status (8)

Country Link
US (1) US4237509A (fr)
JP (1) JPS53142859A (fr)
CA (1) CA1117593A (fr)
CH (1) CH630757A5 (fr)
DE (1) DE2819929A1 (fr)
FR (1) FR2391582A1 (fr)
GB (1) GB1600712A (fr)
SE (1) SE406846B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400755A (en) * 1981-07-16 1983-08-23 General Electric Company Overvoltage protection circuit
US4658203A (en) * 1984-12-04 1987-04-14 Airborne Electronics, Inc. Voltage clamp circuit for switched inductive loads
US4680532A (en) * 1985-08-01 1987-07-14 General Electric Company False triggering protection for switching device of a capacitive load pulser circuit
US4680533A (en) * 1985-08-01 1987-07-14 General Electric Company Protection arrangement for switching device of a capacitive load pulser circuit
US4958250B1 (en) * 1985-08-19 1996-06-04 Edward J Kotski Voltage isolation apparatus for service transformers
US5436786A (en) * 1992-12-21 1995-07-25 Dairyland Electrical Industries, Inc. Isolator surge protector for DC isolation and AC grounding of cathodically protected systems
US5479119A (en) * 1994-11-23 1995-12-26 Analog Devices, Inc. High speed active overvoltage detection and protection for overvoltage sensitive circuits
CA2183176C (fr) * 1995-08-18 2000-10-24 Brian R. Pelly Dispositif de blocage de courant continu grande puissance pour la mise a la terre de courant alternatif et de defaut
US5661422A (en) * 1995-12-12 1997-08-26 Analog Devices, Inc. High speed saturation prevention for saturable circuit elements
US5856904A (en) * 1996-11-15 1999-01-05 Dairyland Electrical Industries, Inc. Voltage and current based control and triggering for isolator surge protector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067375A (en) * 1959-07-27 1962-12-04 Ite Circuit Breaker Ltd High impedance short-circuiter for semi-conductor rectifiers
US3444398A (en) * 1966-05-10 1969-05-13 Bell Telephone Labor Inc Thyristor switch utilizing diodes to improve recovery time
US3412312A (en) * 1966-11-22 1968-11-19 Westinghouse Electric Corp Series connected, slave triggered, controlled rectifier assemblies
CH492334A (de) * 1968-11-08 1970-06-15 Bbc Brown Boveri & Cie Stromrichteranordnung mit mehreren in Reihe geschalteten Stromrichterventilen
SE338099B (fr) * 1969-02-14 1971-08-30 Asea Ab
SE360227B (fr) * 1972-02-01 1973-09-17 Asea Ab
SE369257B (fr) * 1972-12-08 1974-08-12 Asea Ab
CH586970A5 (fr) * 1974-10-29 1977-04-15 Bbc Brown Boveri & Cie

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
EXBK/63 *
EXBK/72 *
EXBK/77 *

Also Published As

Publication number Publication date
US4237509A (en) 1980-12-02
CH630757A5 (de) 1982-06-30
JPS53142859A (en) 1978-12-12
CA1117593A (fr) 1982-02-02
GB1600712A (en) 1981-10-21
SE406846B (sv) 1979-02-26
DE2819929A1 (de) 1978-11-23
SE7705762L (sv) 1978-11-18

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Legal Events

Date Code Title Description
RE Withdrawal of published application