JPS5448436A - Failure detection circuit at load side for driving circuit - Google Patents

Failure detection circuit at load side for driving circuit

Info

Publication number
JPS5448436A
JPS5448436A JP11466577A JP11466577A JPS5448436A JP S5448436 A JPS5448436 A JP S5448436A JP 11466577 A JP11466577 A JP 11466577A JP 11466577 A JP11466577 A JP 11466577A JP S5448436 A JPS5448436 A JP S5448436A
Authority
JP
Japan
Prior art keywords
load side
driving circuit
detection circuit
failure
failure detection
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
JP11466577A
Other languages
Japanese (ja)
Other versions
JPS6118889B2 (en
Inventor
Chukichi Ono
Takao Ueno
Harukiyo Kano
Jinko Saito
Yasushi Miyake
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP11466577A priority Critical patent/JPS5448436A/en
Publication of JPS5448436A publication Critical patent/JPS5448436A/en
Publication of JPS6118889B2 publication Critical patent/JPS6118889B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To assure the stable operation, by reducing the effect of noise, through the detection of current balance passing through the output terminal and detecting the failure at the load side when the current balance is unbalanced, in the failure detection circuit at the load side of the driving circuit used for communication sets or electronic computers. CONSTITUTION:The load failure detection circuit 5 is provided between the driving circuit 1 for communication units or electronic computers and the load 4. The pulse transformer T having two primary windings N1 and N2 is provided with the detection circuit 5, and connection is made that the output current of the driving circuit 1 passes through respective windings N1 and N2. Further, when the current flowing out from the output terminal is equal to that flowing in, the constitution is made that the magnetic flux of the transformer can be cancelld. The secondary windings N3 and N4 of the transformer T are connected to diodes D1 and D2, the voltage rectified with the diodes D1 and D2 is fed to the constant voltage diode D3 and the resistor R, and output is made when a failure is taken place at the load side.
JP11466577A 1977-09-26 1977-09-26 Failure detection circuit at load side for driving circuit Granted JPS5448436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11466577A JPS5448436A (en) 1977-09-26 1977-09-26 Failure detection circuit at load side for driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11466577A JPS5448436A (en) 1977-09-26 1977-09-26 Failure detection circuit at load side for driving circuit

Publications (2)

Publication Number Publication Date
JPS5448436A true JPS5448436A (en) 1979-04-17
JPS6118889B2 JPS6118889B2 (en) 1986-05-14

Family

ID=14643508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11466577A Granted JPS5448436A (en) 1977-09-26 1977-09-26 Failure detection circuit at load side for driving circuit

Country Status (1)

Country Link
JP (1) JPS5448436A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0524396U (en) * 1991-08-20 1993-03-30 重一 山内 Blackboard for construction photo

Also Published As

Publication number Publication date
JPS6118889B2 (en) 1986-05-14

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