JPS57178416A - Expanding circuit for pulse width - Google Patents

Expanding circuit for pulse width

Info

Publication number
JPS57178416A
JPS57178416A JP6370781A JP6370781A JPS57178416A JP S57178416 A JPS57178416 A JP S57178416A JP 6370781 A JP6370781 A JP 6370781A JP 6370781 A JP6370781 A JP 6370781A JP S57178416 A JPS57178416 A JP S57178416A
Authority
JP
Japan
Prior art keywords
delay circuit
pulse width
outputs
terminal
output
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
JP6370781A
Other languages
Japanese (ja)
Inventor
Koichi Yomogihara
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.)
Nippon Signal Co Ltd
Original Assignee
Nippon Signal 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 Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP6370781A priority Critical patent/JPS57178416A/en
Publication of JPS57178416A publication Critical patent/JPS57178416A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electronic Switches (AREA)
  • Pulse Circuits (AREA)

Abstract

PURPOSE:To expand output pulse width without spoiling fail-safe performance in an information system in affirmative mode, by a delay circuit which outputs either value in case of a fault without fail. CONSTITUTION:A delay circuit 3 outputs a ''0'' when a circuit becomes faulty. Now, if an input ''1'' arrives at a terminal 1, one input to OR4 is a ''1'', so a terminal 2 has a ''1'' immediately. The delay circuit 3 outputs a ''1'' some time later. Even after the output of the delay circuit 3 changes from the ''1'' to the ''0'', it continues for a delay time as the ''1'', so the width of an output pulse appearing at the terminal 2 is the delay time longer than input pulse width. If the delay circuit 3 becomes faulty, the output of the delay circuit 3 is the ''0'' continuously, so there is no possibility that the output pulse width increases.
JP6370781A 1981-04-27 1981-04-27 Expanding circuit for pulse width Pending JPS57178416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6370781A JPS57178416A (en) 1981-04-27 1981-04-27 Expanding circuit for pulse width

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6370781A JPS57178416A (en) 1981-04-27 1981-04-27 Expanding circuit for pulse width

Publications (1)

Publication Number Publication Date
JPS57178416A true JPS57178416A (en) 1982-11-02

Family

ID=13237109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6370781A Pending JPS57178416A (en) 1981-04-27 1981-04-27 Expanding circuit for pulse width

Country Status (1)

Country Link
JP (1) JPS57178416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177019A (en) * 1985-01-31 1986-08-08 Matsushita Electric Ind Co Ltd Pulse stretch circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516501A (en) * 1978-06-14 1980-02-05 Nippon Signal Co Ltd:The Fail-safe logic circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516501A (en) * 1978-06-14 1980-02-05 Nippon Signal Co Ltd:The Fail-safe logic circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177019A (en) * 1985-01-31 1986-08-08 Matsushita Electric Ind Co Ltd Pulse stretch circuit

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