KR920018497U - Microprocessor-controlled square wave signal frequency and duty measurement circuit - Google Patents

Microprocessor-controlled square wave signal frequency and duty measurement circuit

Info

Publication number
KR920018497U
KR920018497U KR2019910003371U KR910003371U KR920018497U KR 920018497 U KR920018497 U KR 920018497U KR 2019910003371 U KR2019910003371 U KR 2019910003371U KR 910003371 U KR910003371 U KR 910003371U KR 920018497 U KR920018497 U KR 920018497U
Authority
KR
South Korea
Prior art keywords
microprocessor
wave signal
square wave
signal frequency
measurement circuit
Prior art date
Application number
KR2019910003371U
Other languages
Korean (ko)
Other versions
KR940002719Y1 (en
Inventor
배정환
Original Assignee
금성일렉트론 주식회사
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 금성일렉트론 주식회사 filed Critical 금성일렉트론 주식회사
Priority to KR2019910003371U priority Critical patent/KR940002719Y1/en
Publication of KR920018497U publication Critical patent/KR920018497U/en
Application granted granted Critical
Publication of KR940002719Y1 publication Critical patent/KR940002719Y1/en

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
    • 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
    • G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
KR2019910003371U 1991-03-13 1991-03-13 Frequency and duty detecting circuit for microprocessor controlled square wave signal KR940002719Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019910003371U KR940002719Y1 (en) 1991-03-13 1991-03-13 Frequency and duty detecting circuit for microprocessor controlled square wave signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019910003371U KR940002719Y1 (en) 1991-03-13 1991-03-13 Frequency and duty detecting circuit for microprocessor controlled square wave signal

Publications (2)

Publication Number Publication Date
KR920018497U true KR920018497U (en) 1992-10-19
KR940002719Y1 KR940002719Y1 (en) 1994-04-23

Family

ID=19311690

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019910003371U KR940002719Y1 (en) 1991-03-13 1991-03-13 Frequency and duty detecting circuit for microprocessor controlled square wave signal

Country Status (1)

Country Link
KR (1) KR940002719Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100275134B1 (en) * 1997-05-16 2000-12-15 김영환 A frequency detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100275134B1 (en) * 1997-05-16 2000-12-15 김영환 A frequency detector

Also Published As

Publication number Publication date
KR940002719Y1 (en) 1994-04-23

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