JPH0344912U - - Google Patents

Info

Publication number
JPH0344912U
JPH0344912U JP10595389U JP10595389U JPH0344912U JP H0344912 U JPH0344912 U JP H0344912U JP 10595389 U JP10595389 U JP 10595389U JP 10595389 U JP10595389 U JP 10595389U JP H0344912 U JPH0344912 U JP H0344912U
Authority
JP
Japan
Prior art keywords
acoustic wave
amplifier
surface acoustic
feedback circuit
wave oscillator
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
JP10595389U
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 JP10595389U priority Critical patent/JPH0344912U/ja
Publication of JPH0344912U publication Critical patent/JPH0344912U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Control Of Amplification And Gain Control (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の一実施例による弾性表面波
発振器の構成をあらわした図、第2図は従来の弾
性表面波発振器の構成をあらわした図である。1
……弾性表面波共振器、2……高周波移相器、3
……利得可変型増幅器、4……高周波電力分配器
、5……高周波緩衝増幅器、6……この弾性表面
波発振器の信号出力端子、7……高周波電力分配
器、8……振幅検波器、9……電圧減算器、10
……直流電圧源、11……入力が正電圧の場合は
そのまま出力し、入力が負電圧の場合は0Vを出
力する負電圧クリツパ、12……低域通過フイル
タ、13……直流増幅器、14……高周波増幅器
である。なお、図中、同一符号は同一、又は相当
部分を示す。

Claims (1)

    【実用新案登録請求の範囲】
  1. 弾性表面波共振器と増幅器と移相器とで帰還回
    路を構成し、弾性表面波共振器と共振周波数で、
    この帰還回路を発振させ、この帰還回路の発振信
    号の一部を取り出し出力信号とする弾性表面波発
    振器において、増幅器を利得可変型増幅器とし、
    その利得可変型増幅器の利得を、帰還回路のレベ
    ルで制御することを特徴とする弾性表面波発振器
JP10595389U 1989-09-08 1989-09-08 Pending JPH0344912U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10595389U JPH0344912U (ja) 1989-09-08 1989-09-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10595389U JPH0344912U (ja) 1989-09-08 1989-09-08

Publications (1)

Publication Number Publication Date
JPH0344912U true JPH0344912U (ja) 1991-04-25

Family

ID=31654704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10595389U Pending JPH0344912U (ja) 1989-09-08 1989-09-08

Country Status (1)

Country Link
JP (1) JPH0344912U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012135429A (ja) * 2010-12-27 2012-07-19 Atsushi Maruyama 転倒防止家具および転倒防止装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012135429A (ja) * 2010-12-27 2012-07-19 Atsushi Maruyama 転倒防止家具および転倒防止装置

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