JPH0181018U - - Google Patents

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Publication number
JPH0181018U
JPH0181018U JP1987176194U JP17619487U JPH0181018U JP H0181018 U JPH0181018 U JP H0181018U JP 1987176194 U JP1987176194 U JP 1987176194U JP 17619487 U JP17619487 U JP 17619487U JP H0181018 U JPH0181018 U JP H0181018U
Authority
JP
Japan
Prior art keywords
temperature
voltage
circuit
variable capacitance
capacitance element
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
JP1987176194U
Other languages
English (en)
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 filed Critical
Priority to JP1987176194U priority Critical patent/JPH0181018U/ja
Publication of JPH0181018U publication Critical patent/JPH0181018U/ja
Pending legal-status Critical Current

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  • Oscillators With Electromechanical Resonators (AREA)

Description

【図面の簡単な説明】
第１図は本考案の温度補償型水晶発振回路、第
２図は、本考案の他の実施例を示す温度補償回路
、第３図は従来の温度補償型水晶発振回路、第４
図は、ダイオードへ印加される制御電圧と周囲温
度との関係を示すグラフ。 図中、１，１０は固定抵抗、２，９はサーミス
タ、７，８，１３，１４はバイアス抵抗、４，１
２は制御電圧検出用トランジスタ、１６はダイオ
ード、１７は水晶発振回路、１８は水晶振動子で
ある。

Claims (1)

    【実用新案登録請求の範囲】
  1. 水晶振動子を有する水晶発振回路と、感熱抵抗
    素子からの制御電圧を電圧可変容量素子に印加し
    て、周囲温度変化による発振周波数変化を補償す
    る温度補償回路とから構成される温度補償型水晶
    発振回路に於いて、前記水晶振動子に前記電圧可
    変容量素子を接続し、該電圧可変容量素子のアノ
    ード及びカソードのそれぞれに固定電圧を与える
    バイアス手段を接続し、周囲温度が異なる２つの
    所定値を超えた範囲で、前記感熱抵抗素子が発生
    する電圧を、前記バイアス手段のそれぞれに印加
    するようにしたことを特徴とする温度補償型水晶
    発振回路。
JP1987176194U 1987-11-18 1987-11-18 Pending JPH0181018U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987176194U JPH0181018U (ja) 1987-11-18 1987-11-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987176194U JPH0181018U (ja) 1987-11-18 1987-11-18

Publications (1)

Publication Number Publication Date
JPH0181018U true JPH0181018U (ja) 1989-05-31

Family

ID=31467944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987176194U Pending JPH0181018U (ja) 1987-11-18 1987-11-18

Country Status (1)

Country Link
JP (1) JPH0181018U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005020427A1 (ja) * 2003-08-21 2005-03-03 Murata Manufacturing Co., Ltd. 温度補償型圧電発振器、およびこれを備えた電子装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282059A (en) * 1975-11-07 1977-07-08 Cepe Wideeband oscillator
JPS56132001A (en) * 1980-02-22 1981-10-16 Cepe Temperature compensation crystal oscillator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282059A (en) * 1975-11-07 1977-07-08 Cepe Wideeband oscillator
JPS56132001A (en) * 1980-02-22 1981-10-16 Cepe Temperature compensation crystal oscillator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005020427A1 (ja) * 2003-08-21 2005-03-03 Murata Manufacturing Co., Ltd. 温度補償型圧電発振器、およびこれを備えた電子装置
US7205858B2 (en) 2003-08-21 2007-04-17 Murata Manufacturing Co., Ltd. Temperature compensated piezoelectric oscillator and electronic apparatus comprising it

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