JPS57101731A - Device for detecting temperature - Google Patents

Device for detecting temperature

Info

Publication number
JPS57101731A
JPS57101731A JP17857280A JP17857280A JPS57101731A JP S57101731 A JPS57101731 A JP S57101731A JP 17857280 A JP17857280 A JP 17857280A JP 17857280 A JP17857280 A JP 17857280A JP S57101731 A JPS57101731 A JP S57101731A
Authority
JP
Japan
Prior art keywords
ring oscillator
voltage
temperature
improve
temperature detecting
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
JP17857280A
Other languages
Japanese (ja)
Inventor
Yasuhiko Nishikubo
Shigeru Komine
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP17857280A priority Critical patent/JPS57101731A/en
Publication of JPS57101731A publication Critical patent/JPS57101731A/en
Pending 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
    • 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
    • G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions

Abstract

PURPOSE:To improve voltage stability and to improve temperature detecting sensitivity in the temperature detecting device wherein a CMOS ring oscillator is used, by operating the CMOS ring oscillator in a constant voltage circuit. CONSTITUTION:The output voltage VR of the constant voltage circuit 5 having temperature voltage characteristic is made to be a power source for the ring oscillator 1. Therefore the temperature coefficient of an oscillating frequency f of the ring oscillator 1 becomes larger. Furthermore it is not subjected to the voltage variation of a cell 4.
JP17857280A 1980-12-17 1980-12-17 Device for detecting temperature Pending JPS57101731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17857280A JPS57101731A (en) 1980-12-17 1980-12-17 Device for detecting temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17857280A JPS57101731A (en) 1980-12-17 1980-12-17 Device for detecting temperature

Publications (1)

Publication Number Publication Date
JPS57101731A true JPS57101731A (en) 1982-06-24

Family

ID=16050819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17857280A Pending JPS57101731A (en) 1980-12-17 1980-12-17 Device for detecting temperature

Country Status (1)

Country Link
JP (1) JPS57101731A (en)

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