SE8203798L - thyristor - Google Patents

thyristor

Info

Publication number
SE8203798L
SE8203798L SE8203798A SE8203798A SE8203798L SE 8203798 L SE8203798 L SE 8203798L SE 8203798 A SE8203798 A SE 8203798A SE 8203798 A SE8203798 A SE 8203798A SE 8203798 L SE8203798 L SE 8203798L
Authority
SE
Sweden
Prior art keywords
scr
suppressing
voltage dividing
rising rate
series
Prior art date
Application number
SE8203798A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
N Sashida
E Kashino
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of SE8203798L publication Critical patent/SE8203798L/en

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
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08144—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in thyristor switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
    • H02H7/1252—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers responsive to overvoltage in input or output, e.g. by load dump
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/10—Modifications for increasing the maximum permissible switched voltage
    • H03K17/105—Modifications for increasing the maximum permissible switched voltage in thyristor switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Rectifiers (AREA)

Abstract

PURPOSE:To obtain an SCR bulb capable of protecting an SCR against ignitions at the time of applying a surge by connecting in series with each other suppressing means for suppressing a current rising rate at each SCR. CONSTITUTION:A reactor 6 is connected in series with each SCR1 connected in parallel with voltage dividing means having a voltage dividing capacitor 3 and a voltage dividing resistor 4, thereby forming suppressing means for suppressing the breakdown of the SCR due to excessive ON current rising rate. A series unit of this reactor 6 and the SCR1 is connected in parallel between both terminals of each arrester 2. In this manner, the SCR bulb can be operated against excessive ON current rising rate stress.
SE8203798A 1981-06-22 1982-06-18 thyristor SE8203798L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9888281A JPS57211972A (en) 1981-06-22 1981-06-22 Thyristor bulb

Publications (1)

Publication Number Publication Date
SE8203798L true SE8203798L (en) 1982-12-23

Family

ID=14231517

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8203798A SE8203798L (en) 1981-06-22 1982-06-18 thyristor

Country Status (4)

Country Link
JP (1) JPS57211972A (en)
CH (1) CH661387A5 (en)
DE (1) DE3223295A1 (en)
SE (1) SE8203798L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379900A3 (en) * 1989-01-23 1990-10-03 Siemens Aktiengesellschaft Circuit for one or several semiconductor valves with reverse direction blocking capability

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947726A (en) * 1974-12-18 1976-03-30 General Electric Co. Reverse voltage surge protection for high-voltage thyristors

Also Published As

Publication number Publication date
JPS6412174B2 (en) 1989-02-28
DE3223295C2 (en) 1991-05-08
CH661387A5 (en) 1987-07-15
JPS57211972A (en) 1982-12-25
DE3223295A1 (en) 1983-07-21

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