JPS533050A - Abnormal state detection system - Google Patents

Abnormal state detection system

Info

Publication number
JPS533050A
JPS533050A JP7633776A JP7633776A JPS533050A JP S533050 A JPS533050 A JP S533050A JP 7633776 A JP7633776 A JP 7633776A JP 7633776 A JP7633776 A JP 7633776A JP S533050 A JPS533050 A JP S533050A
Authority
JP
Japan
Prior art keywords
abnormal state
detection system
state detection
driving
switch element
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.)
Granted
Application number
JP7633776A
Other languages
Japanese (ja)
Other versions
JPS565102B2 (en
Inventor
Toshio Arai
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP7633776A priority Critical patent/JPS533050A/en
Publication of JPS533050A publication Critical patent/JPS533050A/en
Publication of JPS565102B2 publication Critical patent/JPS565102B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Protection Of Static Devices (AREA)
  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE: To detect and abnormal state by having a close thermal coupling between the semiconductor switch element of the channel part and the driving element of the driving part and by detecting indirectly the extermal abnormal current of the switch element and the property change of the driving element.
COPYRIGHT: (C)1978,JPO&Japio
JP7633776A 1976-06-30 1976-06-30 Abnormal state detection system Granted JPS533050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7633776A JPS533050A (en) 1976-06-30 1976-06-30 Abnormal state detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7633776A JPS533050A (en) 1976-06-30 1976-06-30 Abnormal state detection system

Publications (2)

Publication Number Publication Date
JPS533050A true JPS533050A (en) 1978-01-12
JPS565102B2 JPS565102B2 (en) 1981-02-03

Family

ID=13602536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7633776A Granted JPS533050A (en) 1976-06-30 1976-06-30 Abnormal state detection system

Country Status (1)

Country Link
JP (1) JPS533050A (en)

Also Published As

Publication number Publication date
JPS565102B2 (en) 1981-02-03

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