JPS554117A - Window comparator - Google Patents

Window comparator

Info

Publication number
JPS554117A
JPS554117A JP7664878A JP7664878A JPS554117A JP S554117 A JPS554117 A JP S554117A JP 7664878 A JP7664878 A JP 7664878A JP 7664878 A JP7664878 A JP 7664878A JP S554117 A JPS554117 A JP S554117A
Authority
JP
Japan
Prior art keywords
single power
power supplies
input
terminals
window comparator
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
JP7664878A
Other languages
Japanese (ja)
Inventor
Shinichiro Hayashi
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 JP7664878A priority Critical patent/JPS554117A/en
Publication of JPS554117A publication Critical patent/JPS554117A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)

Landscapes

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

Abstract

PURPOSE:To obtain a high-precision window comparator of simple constitution by using single power supplies to pull up the input terminals to power supplies via resistances and also to connect them to digital IC for the logical arithmetic of outputs of single power supplies. CONSTITUTION:Single power supplies ICs 1 and 2 for voltage comparison are supplied at input terminals 1a and 2a with an input from input terminal 9 and a potential obtained by dividing the power of power terminal 7 by resistance 10 and pull-up resistance 11. In addition, the high-potential side of the voltage divider composed of voltage-dividing resistances 12 and 13, and variable resistance 14 all interposed between power terminals 7 and 8 is connected to single power supply IC1 at input terminal 1b, and its low-potential side is to input terminal 2b of single power supply IC2. Further, output terminals 4 and 5 of single power supplies IC1 and IC2 are connected to digital IC3, a single power supply for AND operation, and consequently the high-precision output of the window comparator can be obtained from output terminal 6.
JP7664878A 1978-06-24 1978-06-24 Window comparator Pending JPS554117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7664878A JPS554117A (en) 1978-06-24 1978-06-24 Window comparator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7664878A JPS554117A (en) 1978-06-24 1978-06-24 Window comparator

Publications (1)

Publication Number Publication Date
JPS554117A true JPS554117A (en) 1980-01-12

Family

ID=13611209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7664878A Pending JPS554117A (en) 1978-06-24 1978-06-24 Window comparator

Country Status (1)

Country Link
JP (1) JPS554117A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260227A (en) * 1988-08-25 1990-02-28 Fujitsu Ten Ltd Signal input device
WO1995006928A1 (en) * 1993-09-01 1995-03-09 Robert Bosch Gmbh Device for triggering a warning device
EP0682258A1 (en) * 1994-05-09 1995-11-15 Ciba Corning Diagnostics Corp. Obstruction detection circuit for sample probe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260227A (en) * 1988-08-25 1990-02-28 Fujitsu Ten Ltd Signal input device
WO1995006928A1 (en) * 1993-09-01 1995-03-09 Robert Bosch Gmbh Device for triggering a warning device
EP0682258A1 (en) * 1994-05-09 1995-11-15 Ciba Corning Diagnostics Corp. Obstruction detection circuit for sample probe
US5503036A (en) * 1994-05-09 1996-04-02 Ciba Corning Diagnostics Corp. Obstruction detection circuit for sample probe

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