JPS5593031A - Temperature detector - Google Patents

Temperature detector

Info

Publication number
JPS5593031A
JPS5593031A JP116679A JP116679A JPS5593031A JP S5593031 A JPS5593031 A JP S5593031A JP 116679 A JP116679 A JP 116679A JP 116679 A JP116679 A JP 116679A JP S5593031 A JPS5593031 A JP S5593031A
Authority
JP
Japan
Prior art keywords
amplifier
time constant
amplifiers
oscillator
setting
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
JP116679A
Other languages
Japanese (ja)
Inventor
Takashi Yamada
Heihachiro Ebihara
Fukuo Sekiya
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 Watch Co Ltd
Original Assignee
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 Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP116679A priority Critical patent/JPS5593031A/en
Publication of JPS5593031A publication Critical patent/JPS5593031A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain temperature information stable to variation in power voltage by setting a time constant, determined by a temperature sensing resistance and a capacitor for setting an oscillation frequency of the CR oscillator of a temperature detector, much greater than the transfer delay time of the amplifier of the CR oscillator. CONSTITUTION:Output terminal (a) of amplifier 15 among amplifiers 11-15 consisting of MOS transistors is connected to input terminal (b) of amplifier 11 via temperature sensing resistance R1, and this input terminal (b) is to connection point (c) between the output terminal of amplifier 14 and the input terminal of amplifier 15 via capacitor C1 for oscillation frequency setting. A time constant, determined by oscillation-frequency setting capacitor C1 and temperature sensing resistance R1 of the CR oscillator like this, is set 500 times as great as the transfer delay time of amplifiers 11-15, i.e. a time constant determined by output resistance and the total parasitic capacity such as the gate capacity and wiring capacity of MOS transistors constituting amplifiers 11-15. Consequently, the variation rate of the time constant of the temperature detector can be reduced and temperature information stable to variation in power voltage can be obtained.
JP116679A 1979-01-08 1979-01-08 Temperature detector Pending JPS5593031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP116679A JPS5593031A (en) 1979-01-08 1979-01-08 Temperature detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP116679A JPS5593031A (en) 1979-01-08 1979-01-08 Temperature detector

Publications (1)

Publication Number Publication Date
JPS5593031A true JPS5593031A (en) 1980-07-15

Family

ID=11493846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP116679A Pending JPS5593031A (en) 1979-01-08 1979-01-08 Temperature detector

Country Status (1)

Country Link
JP (1) JPS5593031A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7649426B2 (en) 2006-09-12 2010-01-19 Cts Corporation Apparatus and method for temperature compensation of crystal oscillators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7649426B2 (en) 2006-09-12 2010-01-19 Cts Corporation Apparatus and method for temperature compensation of crystal oscillators

Similar Documents

Publication Publication Date Title
JPS55109003A (en) Oscillation circuit
JPS57207405A (en) Broad band negative feedback amplifying circuit
JPS5593031A (en) Temperature detector
JPS5742211A (en) Feedback amplifier
JPS56162517A (en) Current miller circuit
JPS57157606A (en) Fet amplifier
JPS5767319A (en) Amplifier with variable threshold voltage
JPS5535570A (en) Amplifier circuit using field effect transistor
JPS5776918A (en) A/d converter
ATE97769T1 (en) FULL BAND AMPLIFIER WITH CONSTANT GAIN AND HIGH FREQUENCY DETERMINED INPUT IMPEDANCE.
JPS5634210A (en) Agc circuit
JPS5535543A (en) Output buffer circuit
JPS5623028A (en) Switching circuit
JPS56152016A (en) Constant voltage device
JPS5362154A (en) Constant current bias circuit
JPS54115051A (en) Piezoelectric oscillator
JPS5665525A (en) Signal level discriminator
JPS5460841A (en) Comparator circuit
JPS54115048A (en) Complementary type isolation gate field effect transistor amplifier
JPS5597704A (en) Oscillation circuit
JPS55149510A (en) Semiconductor device
JPS56132006A (en) Differential amplifier
JPS5757010A (en) Amplifier
JPS555559A (en) Integrated circuit
JPS57103407A (en) Voltage control variable frequency oscillator