JPS5661627A - Temperature-to-voltage converter circuit using copper resistor - Google Patents

Temperature-to-voltage converter circuit using copper resistor

Info

Publication number
JPS5661627A
JPS5661627A JP13815579A JP13815579A JPS5661627A JP S5661627 A JPS5661627 A JP S5661627A JP 13815579 A JP13815579 A JP 13815579A JP 13815579 A JP13815579 A JP 13815579A JP S5661627 A JPS5661627 A JP S5661627A
Authority
JP
Japan
Prior art keywords
circuit
resistor
temperature
series
operational amplifier
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.)
Granted
Application number
JP13815579A
Other languages
Japanese (ja)
Other versions
JPS6217685B2 (en
Inventor
Akihiko Daigo
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.)
TSURUGA DENKI SEISAKUSHO KK
Original Assignee
TSURUGA DENKI SEISAKUSHO KK
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 TSURUGA DENKI SEISAKUSHO KK filed Critical TSURUGA DENKI SEISAKUSHO KK
Priority to JP13815579A priority Critical patent/JPS5661627A/en
Publication of JPS5661627A publication Critical patent/JPS5661627A/en
Publication of JPS6217685B2 publication Critical patent/JPS6217685B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE: To permit a copper resistor and a platinum resistance element to be interchangeably used in a temperature-to-voltage converter circuit by supplying a constant current to a series- connected circuit comprising a combined resistance circuit and a compensating circuit, and detecting the temperature from the voltage across the series-connected circuit.
CONSTITUTION: A combined resistance circuit R comprising a copper resistor Cu and a fixed resistor Rp connected in parallel so that the difference between the combined resistance values at 0°C and 100°C is that (39.16Ω) of a platinum reference resistance element whose resistance value is 100Ω at 0°C, is connected to the negative-side input terminal of an operational amplifier 5. Between the output and ground terminals of the operational amplifier 5, fixed resistors R1 and R1' are connected, and the middle point between them and the positive-side input terminal are connected to form a positive feedback operational amplifier circuit 4 of gain 2. When the resistance value of the combined resistance circuit R at 0°C is larger than 100Ω, a compensating resistor Rs is inserted between the negative-side input terminal and the output terminal of the operational amplifier 5, and a constant current is supplied to a series-connected circuit comprising the combined resistance circuit R and the compensating resistor Rs. From the voltage across the series- connected circuit, the temperature is detected.
COPYRIGHT: (C)1981,JPO&Japio
JP13815579A 1979-10-24 1979-10-24 Temperature-to-voltage converter circuit using copper resistor Granted JPS5661627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13815579A JPS5661627A (en) 1979-10-24 1979-10-24 Temperature-to-voltage converter circuit using copper resistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13815579A JPS5661627A (en) 1979-10-24 1979-10-24 Temperature-to-voltage converter circuit using copper resistor

Publications (2)

Publication Number Publication Date
JPS5661627A true JPS5661627A (en) 1981-05-27
JPS6217685B2 JPS6217685B2 (en) 1987-04-18

Family

ID=15215298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13815579A Granted JPS5661627A (en) 1979-10-24 1979-10-24 Temperature-to-voltage converter circuit using copper resistor

Country Status (1)

Country Link
JP (1) JPS5661627A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279145A (en) * 1990-10-22 1994-01-18 Mitsubishi Denki K.K. Heater control device for an air-fuel ratio sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63139279U (en) * 1987-03-05 1988-09-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279145A (en) * 1990-10-22 1994-01-18 Mitsubishi Denki K.K. Heater control device for an air-fuel ratio sensor

Also Published As

Publication number Publication date
JPS6217685B2 (en) 1987-04-18

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