JPS5616319A - Detector of pulse duration - Google Patents

Detector of pulse duration

Info

Publication number
JPS5616319A
JPS5616319A JP9221779A JP9221779A JPS5616319A JP S5616319 A JPS5616319 A JP S5616319A JP 9221779 A JP9221779 A JP 9221779A JP 9221779 A JP9221779 A JP 9221779A JP S5616319 A JPS5616319 A JP S5616319A
Authority
JP
Japan
Prior art keywords
output
comparator
reference voltage
voltage
capacitor
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
JP9221779A
Other languages
Japanese (ja)
Inventor
Haruhiko Nishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9221779A priority Critical patent/JPS5616319A/en
Publication of JPS5616319A publication Critical patent/JPS5616319A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To avoid the continuous delivery of the output by cutting off the output in case an extraordinarily long input pulse is applied and by providing the comparator and the switching element. CONSTITUTION:With application of the negative pulse to input terminal 1, capacitor 4 is charged. And the charging voltage is compared with the reference voltage by comparator 6. If the charging voltage is higher than the reference voltage, comparator 6 generates the output to detect the length of the pulse duration. In this case, if an extraordinarily long input pulse is applied, the output is delivered continuously. In this connection, the voltage of capacitor 4 is compared with the reference voltage by comparator 9 having prescribed reference voltage source 8. And when the voltage of capacitor 4 is higher than the reference voltage, switching element 10 is actuated to cut off the output of comparator 6. In such way, the continuous delivery of the output can be avoided.
JP9221779A 1979-07-19 1979-07-19 Detector of pulse duration Pending JPS5616319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9221779A JPS5616319A (en) 1979-07-19 1979-07-19 Detector of pulse duration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9221779A JPS5616319A (en) 1979-07-19 1979-07-19 Detector of pulse duration

Publications (1)

Publication Number Publication Date
JPS5616319A true JPS5616319A (en) 1981-02-17

Family

ID=14048269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9221779A Pending JPS5616319A (en) 1979-07-19 1979-07-19 Detector of pulse duration

Country Status (1)

Country Link
JP (1) JPS5616319A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595737A (en) * 1982-07-01 1984-01-12 Fujitsu Ltd Pulse width detecting circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5277784A (en) * 1975-12-24 1977-06-30 Toshiba Corp Pulse width identification circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5277784A (en) * 1975-12-24 1977-06-30 Toshiba Corp Pulse width identification circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595737A (en) * 1982-07-01 1984-01-12 Fujitsu Ltd Pulse width detecting circuit
JPH0446011B2 (en) * 1982-07-01 1992-07-28 Fujitsu Ltd

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