JPS57176401A - Malfunction preventing system for alarm circuit at input power supply application - Google Patents

Malfunction preventing system for alarm circuit at input power supply application

Info

Publication number
JPS57176401A
JPS57176401A JP56062139A JP6213981A JPS57176401A JP S57176401 A JPS57176401 A JP S57176401A JP 56062139 A JP56062139 A JP 56062139A JP 6213981 A JP6213981 A JP 6213981A JP S57176401 A JPS57176401 A JP S57176401A
Authority
JP
Japan
Prior art keywords
input voltage
circuit
voltage
power supply
input power
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
JP56062139A
Other languages
Japanese (ja)
Other versions
JPH0510018B2 (en
Inventor
Kazuo Watanabe
Tomio Takayama
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 JP56062139A priority Critical patent/JPS57176401A/en
Publication of JPS57176401A publication Critical patent/JPS57176401A/en
Publication of JPH0510018B2 publication Critical patent/JPH0510018B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Safety Devices In Control Systems (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To prevent an alarm signal in error even if an input voltage gradually rises, by inhibiting to start a delay circuit with the input voltage a prescribed value or less at the application of a power supply. CONSTITUTION:An input voltage detecting circuit 5 is provided and it detects an input voltage value V1 when an output voltage of a constant voltage circuit 1 is a low voltage V0 or over at the application of power supply, and a delay circuit 3' is started from a time t3, and the output of an alarm signal is stopped until the voltage becomes the input voltage V1. Thus, even if the input voltage gradually rises, when the input voltage is supplied as a rated value, neither the output of the alarm signal in error not the operation of an interruption circuit 4 can be caused. This can also be applied to a constant current circuit in place of the constant voltage circuit.
JP56062139A 1981-04-24 1981-04-24 Malfunction preventing system for alarm circuit at input power supply application Granted JPS57176401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56062139A JPS57176401A (en) 1981-04-24 1981-04-24 Malfunction preventing system for alarm circuit at input power supply application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56062139A JPS57176401A (en) 1981-04-24 1981-04-24 Malfunction preventing system for alarm circuit at input power supply application

Publications (2)

Publication Number Publication Date
JPS57176401A true JPS57176401A (en) 1982-10-29
JPH0510018B2 JPH0510018B2 (en) 1993-02-08

Family

ID=13191452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56062139A Granted JPS57176401A (en) 1981-04-24 1981-04-24 Malfunction preventing system for alarm circuit at input power supply application

Country Status (1)

Country Link
JP (1) JPS57176401A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0358716U (en) * 1989-10-14 1991-06-07
JP2016146917A (en) * 2015-02-12 2016-08-18 株式会社サンセイアールアンドディ Game machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068297A (en) * 1973-10-17 1975-06-07
JPS54102477A (en) * 1978-01-30 1979-08-11 Toyoda Mach Works Ltd Sequence controller output device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068297A (en) * 1973-10-17 1975-06-07
JPS54102477A (en) * 1978-01-30 1979-08-11 Toyoda Mach Works Ltd Sequence controller output device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0358716U (en) * 1989-10-14 1991-06-07
JP2016146917A (en) * 2015-02-12 2016-08-18 株式会社サンセイアールアンドディ Game machine

Also Published As

Publication number Publication date
JPH0510018B2 (en) 1993-02-08

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