JPS59180775U - Electroacoustic transducer drive circuit - Google Patents

Electroacoustic transducer drive circuit

Info

Publication number
JPS59180775U
JPS59180775U JP7597283U JP7597283U JPS59180775U JP S59180775 U JPS59180775 U JP S59180775U JP 7597283 U JP7597283 U JP 7597283U JP 7597283 U JP7597283 U JP 7597283U JP S59180775 U JPS59180775 U JP S59180775U
Authority
JP
Japan
Prior art keywords
electroacoustic transducer
circuit
diameter end
drive circuit
piezoelectric vibrator
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.)
Granted
Application number
JP7597283U
Other languages
Japanese (ja)
Other versions
JPH0121020Y2 (en
Inventor
実 高橋
Original Assignee
ティーディーケイ株式会社
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 ティーディーケイ株式会社 filed Critical ティーディーケイ株式会社
Priority to JP7597283U priority Critical patent/JPS59180775U/en
Publication of JPS59180775U publication Critical patent/JPS59180775U/en
Application granted granted Critical
Publication of JPH0121020Y2 publication Critical patent/JPH0121020Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Special Spraying Apparatus (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は電気音響変換器の一例を示す側面図、第２図は
本考案に係る電気音響変換器の駆動回路の実施例を示す
回路図、第３図はＤＣ−ＤＣコンバータの供給電圧Ｖｏ
ｕｔの時間変化を示すグラフ、第４図は圧電振動子のイ
ンピーダンスの絶対値ＩＺ１の時間変化を示すグラフで
ある。 １・・・・・・ステップホーン、１０・・・・・・ＤＣ
−ＤＣコンバータ、１２・・・・・・発振回路、Ｑ１乃
至Ｑ３・・・・・・トランジスタ、Ｒ１，Ｒ２・・・・
・・抵抗器、Ｃ１乃至Ｃ３・・・・・・コンデンサ、Ｔ
Ｄ・・・・・・圧電振動子。FIG. 1 is a side view showing an example of an electroacoustic transducer, FIG. 2 is a circuit diagram showing an embodiment of the driving circuit of the electroacoustic transducer according to the present invention, and FIG. 3 is a supply voltage Vo of the DC-DC converter.
FIG. 4 is a graph showing the change in the absolute value IZ1 of the impedance of the piezoelectric vibrator over time. 1...Step horn, 10...DC
-DC converter, 12...Oscillation circuit, Q1 to Q3...Transistor, R1, R2...
...Resistor, C1 to C3...Capacitor, T
D...Piezoelectric vibrator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ゛　　　同軸上に大径端と小径端とを形成したホーンの
大径端に圧電振動子を固着し、該ホーンの小径端の振幅
を利用して液体を霧化する電気音響変換器の駆動回路に
おいて、前記圧電振動子が接続された発振回路と、前記
電気音響変換器の負荷による圧電振動子のインピーダン
ス変動に応じて前記発振回路への供給電圧が変化する電
源回路とを備え、該電源回路の供給電流検知回路に時定
数をもたせ、前記発振回路の発振開始時は供給電流に関
係なく供給重用を上昇させる構成としたことを特徴とす
る電気音響変換器の駆動回路。゛ A drive circuit for an electroacoustic transducer in which a piezoelectric vibrator is fixed to the large-diameter end of a horn that has a large-diameter end and a small-diameter end formed on the same axis, and atomizes liquid by using the amplitude of the small-diameter end of the horn. The power supply circuit comprises an oscillation circuit to which the piezoelectric vibrator is connected, and a power supply circuit in which a voltage supplied to the oscillation circuit changes according to impedance fluctuations of the piezoelectric vibrator due to a load of the electroacoustic transducer. 1. A drive circuit for an electroacoustic transducer, characterized in that the supply current detection circuit has a time constant, and when the oscillation circuit starts oscillating, the supply current is increased regardless of the supply current.
JP7597283U 1983-05-23 1983-05-23 Electroacoustic transducer drive circuit Granted JPS59180775U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7597283U JPS59180775U (en) 1983-05-23 1983-05-23 Electroacoustic transducer drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7597283U JPS59180775U (en) 1983-05-23 1983-05-23 Electroacoustic transducer drive circuit

Publications (2)

Publication Number Publication Date
JPS59180775U true JPS59180775U (en) 1984-12-03
JPH0121020Y2 JPH0121020Y2 (en) 1989-06-23

Family

ID=30206027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7597283U Granted JPS59180775U (en) 1983-05-23 1983-05-23 Electroacoustic transducer drive circuit

Country Status (1)

Country Link
JP (1) JPS59180775U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009002589A (en) * 2007-06-22 2009-01-08 Panasonic Corp Refrigerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009002589A (en) * 2007-06-22 2009-01-08 Panasonic Corp Refrigerator

Also Published As

Publication number Publication date
JPH0121020Y2 (en) 1989-06-23

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