ES460206A1 - Circuito convertidor de tension en frecuencia. - Google Patents

Circuito convertidor de tension en frecuencia.

Info

Publication number
ES460206A1
ES460206A1 ES460206A ES460206A ES460206A1 ES 460206 A1 ES460206 A1 ES 460206A1 ES 460206 A ES460206 A ES 460206A ES 460206 A ES460206 A ES 460206A ES 460206 A1 ES460206 A1 ES 460206A1
Authority
ES
Spain
Prior art keywords
input signal
voltage
level
circuit
reference input
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.)
Expired
Application number
ES460206A
Other languages
English (en)
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.)
Johnson and Johnson
Original Assignee
Johnson and Johnson
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 Johnson and Johnson filed Critical Johnson and Johnson
Publication of ES460206A1 publication Critical patent/ES460206A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/20—Clinical contact thermometers for use with humans or animals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • G01K7/24—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/60—Analogue/digital converters with intermediate conversion to frequency of pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

Se describe un circuito convertidor de tensión en frecuencia para suministrar impulsos de salida numéricos a una frecuencia proporcional a una señal de entrada analógica, que incluye un circuito de entrada de referencia para establecer una señal de entrada de referencia de un primer nivel; un circuito integrado para proporcionar una señal de salida en forma de rampa proporcional a la diferencia entre la señal analógica de entrada y la señal de entrada de referencia de un primer nivel y que tiene una primera dirección de pendiente que es función de la polaridad de esta diferencia;.un circuito modificador de referencia interconectado con el circuito integrado para desplazar la señal de entrada de referencia a un segundo nivel.
ES460206A 1977-01-12 1977-06-28 Circuito convertidor de tension en frecuencia. Expired ES460206A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75861977A 1977-01-12 1977-01-12

Publications (1)

Publication Number Publication Date
ES460206A1 true ES460206A1 (es) 1978-09-01

Family

ID=25052435

Family Applications (1)

Application Number Title Priority Date Filing Date
ES460206A Expired ES460206A1 (es) 1977-01-12 1977-06-28 Circuito convertidor de tension en frecuencia.

Country Status (10)

Country Link
JP (1) JPS5388559A (es)
BE (1) BE861070A (es)
BR (1) BR7800148A (es)
CA (1) CA1109562A (es)
ES (1) ES460206A1 (es)
FR (1) FR2377730A1 (es)
GB (1) GB1566064A (es)
LU (1) LU78851A1 (es)
NL (1) NL7713678A (es)
SE (1) SE7708807L (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321862A1 (de) * 1983-06-16 1984-12-20 Siemens AG, 1000 Berlin und 8000 München Messeinrichtung zur erfassung einer temperaturdifferenz
CH665027A5 (de) * 1984-09-06 1988-04-15 Mettler Instrumente Ag Verfahren zur messung und digitalisierung eines widerstandes und schaltung zur durchfuehrung des verfahrens.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599203A (en) * 1969-07-30 1971-08-10 Gen Electric Asynchronous analog to logic level signal converter

Also Published As

Publication number Publication date
GB1566064A (en) 1980-04-30
BE861070A (fr) 1978-05-22
FR2377730A1 (fr) 1978-08-11
JPS5388559A (en) 1978-08-04
BR7800148A (pt) 1978-12-05
CA1109562A (en) 1981-09-22
NL7713678A (nl) 1978-07-14
SE7708807L (sv) 1978-07-13
LU78851A1 (fr) 1978-06-09

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