JPS5556470A - Power abnormality detecting circuit - Google Patents

Power abnormality detecting circuit

Info

Publication number
JPS5556470A
JPS5556470A JP12709378A JP12709378A JPS5556470A JP S5556470 A JPS5556470 A JP S5556470A JP 12709378 A JP12709378 A JP 12709378A JP 12709378 A JP12709378 A JP 12709378A JP S5556470 A JPS5556470 A JP S5556470A
Authority
JP
Japan
Prior art keywords
circuit
output
detecting circuit
switching
stop
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
JP12709378A
Other languages
Japanese (ja)
Other versions
JPS5858906B2 (en
Inventor
Masami Itoyama
Sadao Miyazaki
Kazuo Otake
Toshiaki Naito
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP53127093A priority Critical patent/JPS5858906B2/en
Publication of JPS5556470A publication Critical patent/JPS5556470A/en
Publication of JPS5858906B2 publication Critical patent/JPS5858906B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Protection Of Static Devices (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Dc-Dc Converters (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE: To discriminate a faultyswitching regulator circuit by arranging a detecting circuit for switching stop at each switching operation part, a detecting circuit for short voltage at the end of output and a circuit for delaying the output from this short voltage detecting circuit.
CONSTITUTION: A detecting circuit for switching stop 6 detects switching stop in a switching regulator 5 and inputs this output to an OR circuit. Shortage of the output voltage+V is detected by a short voltage detecting circuit 7 and this output is input to the OR circuit through a delay circuit 8. The OR circuit does logical sum operations of both the output stop of the switching stop detecting circuit 6 and the output drop of the delay circuit 8 and produces an alarm signal ALM.
COPYRIGHT: (C)1980,JPO&Japio
JP53127093A 1978-10-16 1978-10-16 Power supply abnormality detection circuit Expired JPS5858906B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53127093A JPS5858906B2 (en) 1978-10-16 1978-10-16 Power supply abnormality detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53127093A JPS5858906B2 (en) 1978-10-16 1978-10-16 Power supply abnormality detection circuit

Publications (2)

Publication Number Publication Date
JPS5556470A true JPS5556470A (en) 1980-04-25
JPS5858906B2 JPS5858906B2 (en) 1983-12-27

Family

ID=14951400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53127093A Expired JPS5858906B2 (en) 1978-10-16 1978-10-16 Power supply abnormality detection circuit

Country Status (1)

Country Link
JP (1) JPS5858906B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051417A (en) * 1983-08-29 1985-03-22 富士通株式会社 Overcurrent protecting circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61202907A (en) * 1985-03-05 1986-09-08 Mazda Motor Corp Rear suspension of car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051417A (en) * 1983-08-29 1985-03-22 富士通株式会社 Overcurrent protecting circuit

Also Published As

Publication number Publication date
JPS5858906B2 (en) 1983-12-27

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