JPS5672357A - Failure detector - Google Patents

Failure detector

Info

Publication number
JPS5672357A
JPS5672357A JP14869179A JP14869179A JPS5672357A JP S5672357 A JPS5672357 A JP S5672357A JP 14869179 A JP14869179 A JP 14869179A JP 14869179 A JP14869179 A JP 14869179A JP S5672357 A JPS5672357 A JP S5672357A
Authority
JP
Japan
Prior art keywords
failure
comparator
output
amplifier
voltage
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.)
Pending
Application number
JP14869179A
Other languages
Japanese (ja)
Inventor
Toshio Asai
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14869179A priority Critical patent/JPS5672357A/en
Publication of JPS5672357A publication Critical patent/JPS5672357A/en
Pending legal-status Critical Current

Links

Landscapes

  • Tests Of Electronic Circuits (AREA)

Abstract

PURPOSE: To detect a failure of a device simply and at low cost, by detecting the output singal of an electric circuit, comparing the detected output voltage with the predetermined voltage and comparing each compared output mutually.
CONSTITUTION: The singal branched at a signal branch circuit 11 is amplified at amplifiers 12 and 13. In detecting the failure in the amplifier 12, the output voltage of a comparator 18 and a voltage branching the output voltage of the comparator 19 with a multiplier 23, are compared at a comparator 24. If any failure is taken place to the amplifier 12, the output of the comparator 24 is at high level. The detection of failure of the amplifier 13 is egually performed through the similar operation.
COPYRIGHT: (C)1981,JPO&Japio
JP14869179A 1979-11-16 1979-11-16 Failure detector Pending JPS5672357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14869179A JPS5672357A (en) 1979-11-16 1979-11-16 Failure detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14869179A JPS5672357A (en) 1979-11-16 1979-11-16 Failure detector

Publications (1)

Publication Number Publication Date
JPS5672357A true JPS5672357A (en) 1981-06-16

Family

ID=15458435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14869179A Pending JPS5672357A (en) 1979-11-16 1979-11-16 Failure detector

Country Status (1)

Country Link
JP (1) JPS5672357A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922184A (en) * 1988-08-29 1990-05-01 Control Data Corporation Apparatus and process for the simultaneous continuity sensing of multiple circuits
JPH0479346A (en) * 1990-07-23 1992-03-12 Matsushita Electron Corp Method for measuring semiconductor element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922184A (en) * 1988-08-29 1990-05-01 Control Data Corporation Apparatus and process for the simultaneous continuity sensing of multiple circuits
JPH0479346A (en) * 1990-07-23 1992-03-12 Matsushita Electron Corp Method for measuring semiconductor element

Similar Documents

Publication Publication Date Title
JPS57154919A (en) Detecting system for high frequency faulty power level
JPS5672357A (en) Failure detector
JPS55145368A (en) Charge transfer device
SE9400989D0 (en) Method and apparatus for detecting when power system is out of phase
ES486395A1 (en) Security system.
JPS57190212A (en) Device for detecting abnormality of measuring device
JPS5619242A (en) Detecting circuit for fault of hybrid circuit
JPS5664633A (en) Leak monitoring system
JPS5471347A (en) State detector
JPS5686326A (en) Leak detecting system
JPS57142523A (en) Flame detector
JPS5495067A (en) Mill coating detection method
JPS54151875A (en) Disconnection detector for transmission circuits
JPS55166487A (en) Variable speed motor
JPS5724872A (en) Direction measuring apparatus
JPS6469962A (en) Detecting apparatus of contact resistance
JPS5764128A (en) Loose parts monitor
JPS52143076A (en) Level detection circuit
JPS5377448A (en) Trouble detection unit of direct current amplifier
JPS524895A (en) Gas detector
JPS5374452A (en) Abnormality detector
JPS5453582A (en) Neutron measuring circuit
JPS5327444A (en) Trouble shooting method and device for object detector
JPS5593340A (en) Failure detector
JPS539581A (en) Detecting method for reactive power