JPS5686361A - Frequency-voltage converter - Google Patents

Frequency-voltage converter

Info

Publication number
JPS5686361A
JPS5686361A JP16320179A JP16320179A JPS5686361A JP S5686361 A JPS5686361 A JP S5686361A JP 16320179 A JP16320179 A JP 16320179A JP 16320179 A JP16320179 A JP 16320179A JP S5686361 A JPS5686361 A JP S5686361A
Authority
JP
Japan
Prior art keywords
frequency
signal
voltage converter
clock
exclusive
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
JP16320179A
Other languages
Japanese (ja)
Inventor
Tadashi Azegami
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin 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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP16320179A priority Critical patent/JPS5686361A/en
Publication of JPS5686361A publication Critical patent/JPS5686361A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
    • G01R23/09—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage using analogue integrators, e.g. capacitors establishing a mean value by balance of input signals and defined discharge signals or leakage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To realize generation of an analog signal having a specified weight and simplify the constitution of a frequency-voltage converter, by securing a combination between a shift register and an exclusive OR circuit. CONSTITUTION:The frequency input F-in stored in the shift register 6 is output through the terminals Q1-Q5 in synchronizig with the clock pulse CLOCK. These outputs are applied to the exclusive OR circuit 7 to obtain the analog signal P at the output. The weight value of the signal P is proportional to the bit size of the register 6 and the driving voltage VCC and adversely proportional to the frequency of the CLOCK. The signal P is smoothed by the filter 5 and then converted into the voltage signal.
JP16320179A 1979-12-14 1979-12-14 Frequency-voltage converter Pending JPS5686361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16320179A JPS5686361A (en) 1979-12-14 1979-12-14 Frequency-voltage converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16320179A JPS5686361A (en) 1979-12-14 1979-12-14 Frequency-voltage converter

Publications (1)

Publication Number Publication Date
JPS5686361A true JPS5686361A (en) 1981-07-14

Family

ID=15769195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16320179A Pending JPS5686361A (en) 1979-12-14 1979-12-14 Frequency-voltage converter

Country Status (1)

Country Link
JP (1) JPS5686361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559087A2 (en) * 1992-02-29 1993-09-08 Honeywell Ag Digital period measuring circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559087A2 (en) * 1992-02-29 1993-09-08 Honeywell Ag Digital period measuring circuit
EP0559087A3 (en) * 1992-02-29 1994-03-02 Honeywell Ag

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