JPS5850496U - Piezoelectric buzzer drive circuit - Google Patents
Piezoelectric buzzer drive circuitInfo
- Publication number
- JPS5850496U JPS5850496U JP14544481U JP14544481U JPS5850496U JP S5850496 U JPS5850496 U JP S5850496U JP 14544481 U JP14544481 U JP 14544481U JP 14544481 U JP14544481 U JP 14544481U JP S5850496 U JPS5850496 U JP S5850496U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- piezoelectric buzzer
- buzzer drive
- transistor
- emitter
- 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
Links
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
第１図は従来の方向指示器動作音発生用打音器の概略構
成図、第２図は一般的な自励発振用圧電ブザーの概略構
成図、第３図は従来の圧電ブザーの駆動回路例を示す回
路図、第４図ａは従来の方向指示器用電源電圧の電圧波
形図、第４図すは第４図ａの電源で従来の圧電ブザーを
鳴らした時の鳴動期間を示す電圧波形図、第４図Ｃは同
じく第４図ａの電源で本考案の圧電ブザーを鳴らした時
の鳴動期間を示す電圧波形図、第５図、第６図、第７図
はそれぞれ本考案に係る圧電ブザーの駆動回路の各実施
例を示す回路図である。
８．２２・・・・・・圧電振動子、９，１０．１１・・
曲バイアス抵抗ン１２・・・・・・発振用トランジスタ
、１３．１４・・・・・・電源端、１５・・・・・・第
２のトランジスタ、１６．１８・・・・・・抵抗、１７
・・・・・・コンデンサ、１９・・・・・・ヒーキング
コイル、２１・・・・・・コンデンサ。Figure 1 is a schematic configuration diagram of a conventional sounding device for generating turn signal operation sound, Figure 2 is a schematic configuration diagram of a general piezoelectric buzzer for self-excited oscillation, and Figure 3 is a conventional piezoelectric buzzer drive circuit. A circuit diagram showing an example, FIG. 4a is a voltage waveform diagram of a conventional power supply voltage for a turn signal, and FIG. Figure 4C is a voltage waveform diagram showing the ringing period when the piezoelectric buzzer of the present invention is sounded by the power supply of Figure 4a, and Figures 5, 6, and 7 are respectively related to the present invention. FIG. 3 is a circuit diagram showing each embodiment of a drive circuit for a piezoelectric buzzer. 8.22...Piezoelectric vibrator, 9,10.11...
Curved bias resistor 12...Oscillation transistor, 13.14...Power supply terminal, 15...Second transistor, 16.18...Resistor, 17
... Capacitor, 19 ... Heating coil, 21 ... Capacitor.
Claims (1)
アス経路の途中と前記発振用トランジスタのエミッタの
間にコレクタとエミッタを接続した第２のトランジスタ
を有し、前記第２のトランジスタのベースに抵抗とコン
デンサよりなる時定数回路、を接続してなる圧電ブザー
の駆動回路。A second transistor whose collector and emitter are connected between the base bias path of the oscillation transistor that drives the piezoelectric vibrator and the emitter of the oscillation transistor is provided, and a resistor and a capacitor are connected to the base of the second transistor. A piezoelectric buzzer drive circuit consisting of a time constant circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14544481U JPS5850496U (en) | 1981-09-29 | 1981-09-29 | Piezoelectric buzzer drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14544481U JPS5850496U (en) | 1981-09-29 | 1981-09-29 | Piezoelectric buzzer drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5850496U true JPS5850496U (en) | 1983-04-05 |
| JPS6344874Y2 JPS6344874Y2 (en) | 1988-11-21 |
Family
ID=29938375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14544481U Granted JPS5850496U (en) | 1981-09-29 | 1981-09-29 | Piezoelectric buzzer drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000293186A (en) * | 1999-04-09 | 2000-10-20 | Star Micronics Co Ltd | Sounding body driving circuit and operating sound generating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155489U (en) * | 1978-04-21 | 1979-10-29 |
-
1981
- 1981-09-29 JP JP14544481U patent/JPS5850496U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155489U (en) * | 1978-04-21 | 1979-10-29 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000293186A (en) * | 1999-04-09 | 2000-10-20 | Star Micronics Co Ltd | Sounding body driving circuit and operating sound generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6344874Y2 (en) | 1988-11-21 |
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