JPS5799039A - Temperature compensator for output frequency - Google Patents

Temperature compensator for output frequency

Info

Publication number
JPS5799039A
JPS5799039A JP17518180A JP17518180A JPS5799039A JP S5799039 A JPS5799039 A JP S5799039A JP 17518180 A JP17518180 A JP 17518180A JP 17518180 A JP17518180 A JP 17518180A JP S5799039 A JPS5799039 A JP S5799039A
Authority
JP
Japan
Prior art keywords
frequency
output frequency
outputs
storage circuit
temperature
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
JP17518180A
Other languages
Japanese (ja)
Inventor
Kyoichi Maeda
Hajime Oda
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.)
Seikosha KK
Original Assignee
Seikosha 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 Seikosha KK filed Critical Seikosha KK
Priority to JP17518180A priority Critical patent/JPS5799039A/en
Publication of JPS5799039A publication Critical patent/JPS5799039A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/026—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using a memory for digitally storing correction values
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/027—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using frequency conversion means which is variable with temperature, e.g. mixer, frequency divider, pulse add/substract logic circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/028—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only of generators comprising piezoelectric resonators

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To perform temperature compensation for output frequency, by providing a storage circuit storing the reference data to set the output frequency to an objective value and correcting this reference date according to the temperature. CONSTITUTION:A storage circuit M is rewritable by closing a switch S, the switch S is opened when the output frequency from a terminal phi is coincident with an objective frequency, and frequency dividing data of variable frequency dividers D1-D3 at this time is written in the storage circuit M. Temperature detecting amount from a resistor R1 and a thermister R0 is digital-converted at an AD conversion circuit CV, the outputs A-D are applied to a decoder DE and designated outputs a-h for correction amount are obtained according to an average temperature characteristic of a quartz oscillator Q. A pulse generating circuit PG produces a correction pulse according to the outputs a-h, a counter PC makes addition/subtraction of the frequency dividing data and the correction pulse, and the frequency dividing ratio of the variable frequency dividers D1-D3 can be set from the result of operation.
JP17518180A 1980-12-11 1980-12-11 Temperature compensator for output frequency Pending JPS5799039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17518180A JPS5799039A (en) 1980-12-11 1980-12-11 Temperature compensator for output frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17518180A JPS5799039A (en) 1980-12-11 1980-12-11 Temperature compensator for output frequency

Publications (1)

Publication Number Publication Date
JPS5799039A true JPS5799039A (en) 1982-06-19

Family

ID=15991683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17518180A Pending JPS5799039A (en) 1980-12-11 1980-12-11 Temperature compensator for output frequency

Country Status (1)

Country Link
JP (1) JPS5799039A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0538126U (en) * 1991-10-25 1993-05-25 株式会社クボタ Connection structure of roof panel and shed frame
US7554415B2 (en) 2006-01-17 2009-06-30 Denso Corporation Microcomputer including a CR oscillator circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113556A (en) * 1973-02-26 1974-10-30
JPS5592041A (en) * 1978-12-29 1980-07-12 Seikosha Co Ltd Frequency correction unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113556A (en) * 1973-02-26 1974-10-30
JPS5592041A (en) * 1978-12-29 1980-07-12 Seikosha Co Ltd Frequency correction unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0538126U (en) * 1991-10-25 1993-05-25 株式会社クボタ Connection structure of roof panel and shed frame
US7554415B2 (en) 2006-01-17 2009-06-30 Denso Corporation Microcomputer including a CR oscillator circuit

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