JPH0229099U - - Google Patents

Info

Publication number
JPH0229099U
JPH0229099U JP10591388U JP10591388U JPH0229099U JP H0229099 U JPH0229099 U JP H0229099U JP 10591388 U JP10591388 U JP 10591388U JP 10591388 U JP10591388 U JP 10591388U JP H0229099 U JPH0229099 U JP H0229099U
Authority
JP
Japan
Prior art keywords
piezoelectric buzzer
resistors
series
switching element
parallel
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
JP10591388U
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 JP10591388U priority Critical patent/JPH0229099U/ja
Publication of JPH0229099U publication Critical patent/JPH0229099U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Description

【図面の簡単な説明】
第1図は本案の一実施例の回路図、第2図は本
案の他の一実施例の回路図、第3図は従来例の回
路図、第4図は本案の実施例における電流制限抵
抗変化による圧電ブザー音圧変化を示す図である
。 1……3端子型圧電ブザー、2……発振用トラ
ンジスタ、5……電流制限抵抗、9,13……電
流制限抵抗可変部。

Claims (1)

    【実用新案登録請求の範囲】
  1. 圧電ブザーを発振鳴動させる圧電ブザー発振回
    路において、抵抗値の大小により圧電ブザーの音
    圧が変化する抵抗を、複数の固定抵抗による合成
    抵抗とし、合成抵抗中の少なくとも一つの抵抗を
    除いた抵抗のうち、直列接続されている抵抗には
    並列にスイツチング素子を接続し、並列接続され
    ている抵抗には直列にスイツチング素子を接続し
    たことを特徴とする圧電ブザー発振回路。
JP10591388U 1988-08-12 1988-08-12 Pending JPH0229099U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10591388U JPH0229099U (ja) 1988-08-12 1988-08-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10591388U JPH0229099U (ja) 1988-08-12 1988-08-12

Publications (1)

Publication Number Publication Date
JPH0229099U true JPH0229099U (ja) 1990-02-23

Family

ID=31338953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10591388U Pending JPH0229099U (ja) 1988-08-12 1988-08-12

Country Status (1)

Country Link
JP (1) JPH0229099U (ja)

Similar Documents

Publication Publication Date Title
JPS62142807U (ja)
JPH0461009U (ja)
JPH0275704U (ja)
JPH0339129U (ja)
JPS6430416U (ja)
JPH0323901U (ja)
JPS6349893U (ja)
JPS6399294U (ja)
JPS6392433U (ja)
JPH02146359U (ja)
JPH0288317U (ja)
JPS62121840U (ja)
JPS62199903U (ja)
JPH0221581U (ja)
JPH0352646U (ja)
JPH02141109U (ja)
JPH0322417U (ja)
JPS6239321U (ja)
JPH027698U (ja)
JPH0346215U (ja)
JPH0282003U (ja)
JPH0438140U (ja)
JPS62199902U (ja)
JPS6188201U (ja)
JPS63153298U (ja)