JPS55154822A - Operation confirming circuit for voltage-frequency converter - Google Patents

Operation confirming circuit for voltage-frequency converter

Info

Publication number
JPS55154822A
JPS55154822A JP6342779A JP6342779A JPS55154822A JP S55154822 A JPS55154822 A JP S55154822A JP 6342779 A JP6342779 A JP 6342779A JP 6342779 A JP6342779 A JP 6342779A JP S55154822 A JPS55154822 A JP S55154822A
Authority
JP
Japan
Prior art keywords
converter
output
light emitting
voltage
emitting diode
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
JP6342779A
Other languages
Japanese (ja)
Inventor
Masakatsu Ogami
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 JP6342779A priority Critical patent/JPS55154822A/en
Publication of JPS55154822A publication Critical patent/JPS55154822A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/06—Frequency or rate modulation, i.e. PFM or PRM

Landscapes

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To discriminate malfunctions of a voltage/frequency converter easily by applying FF with a string of output pulses from the converter and by securely discriminating the output of the FF by the 1st light emitting diode connected to a noninversion terminal and the 2nd light emitting diode connected to an inversion terminal. CONSTITUTION:To the output side of voltage/frequency converter 10, FF14 is connected and output signal Vf of converter 10 is supplied to clock input terminal CK of FF 14 to trigger FF14 at the rise of output signal Vf of converter 10. To noninversion output terminal Q of the FF14, the 1st light emitting diode 16 is connected and to inversion output terminal Q', the 2nd light emitting diode 18 is also conneced; while either diode 16 or 18 is made to come on with converter 10 in normal operation, alternate diodes 16 and 18 come on at a low oscillation frequency and diodes 16 and 18 appear to come on simultaneously through the residual image effect at a high frequency, so that the normal operation and malfunction of converter 10 can easily be discriminated.
JP6342779A 1979-05-23 1979-05-23 Operation confirming circuit for voltage-frequency converter Pending JPS55154822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6342779A JPS55154822A (en) 1979-05-23 1979-05-23 Operation confirming circuit for voltage-frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6342779A JPS55154822A (en) 1979-05-23 1979-05-23 Operation confirming circuit for voltage-frequency converter

Publications (1)

Publication Number Publication Date
JPS55154822A true JPS55154822A (en) 1980-12-02

Family

ID=13228971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6342779A Pending JPS55154822A (en) 1979-05-23 1979-05-23 Operation confirming circuit for voltage-frequency converter

Country Status (1)

Country Link
JP (1) JPS55154822A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273845U (en) * 1988-11-26 1990-06-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273845U (en) * 1988-11-26 1990-06-06

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