JPS59166297U - Piezoelectric buzzer drive device - Google Patents
Piezoelectric buzzer drive deviceInfo
- Publication number
- JPS59166297U JPS59166297U JP6021383U JP6021383U JPS59166297U JP S59166297 U JPS59166297 U JP S59166297U JP 6021383 U JP6021383 U JP 6021383U JP 6021383 U JP6021383 U JP 6021383U JP S59166297 U JPS59166297 U JP S59166297U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric buzzer
- frequency
- rectangular wave
- drive device
- signal
- 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
Links
Landscapes
- Details Of Audible-Bandwidth Transducers (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
第１図は本考案の一実施例に係る圧電ブザー駆動装置の
構成を示すブロック図、第２図は第１図の各部の出力波
形を示す図、第３図は第１図におけるｌ ｋＨｚの矩形
波パルス信号ａの周波数成分を示す図、第４図は第１図
における出力パルス信号ｇの周波数成分を示す図、第５
図は矩形波パルス信号ａにおいて圧電ブザーの音圧に対
する周波数特性を示す図、第６図は出力パルス信号ｇに
おいて圧電ブザーの音圧に対する周波数特性を示す図で
ある。
１・・・・・・パルス発生器、２・・・・・・分周回路
、３二・・・・・オア回路、４・・・・・・アンド回路
、６・・・・・・インバータ、７・・・・・・圧電ブザ
ー。FIG. 1 is a block diagram showing the configuration of a piezoelectric buzzer drive device according to an embodiment of the present invention, FIG. 2 is a diagram showing output waveforms of each part in FIG. 1, and FIG. 3 is a diagram showing the output waveform of each part in FIG. FIG. 4 is a diagram showing the frequency components of the rectangular pulse signal a, and FIG. 4 is a diagram showing the frequency components of the output pulse signal g in FIG.
The figure shows the frequency characteristics of the piezoelectric buzzer with respect to sound pressure in the case of a rectangular pulse signal a, and FIG. 6 shows the frequency characteristics of the piezoelectric buzzer with respect to sound pressure in the output pulse signal g. 1...Pulse generator, 2...Divider circuit, 32...OR circuit, 4...AND circuit, 6...Inverter , 7...Piezoelectric buzzer.
Claims (1)
発生器と、このパルス発生器から出力される上記基準パ
ルス信号に基づいて圧電ブザーの共振周波数に相当する
周波数ｆ□を有する矩形波パルス信号およびｎ ｆ２＝
ｆ 、（ｎは偶数）の関係を満足する周波数ｆ２を有
する矩形波パルス信号をそれぞれ出力する分周回路と、
この分周回路から出力される上記周波数ｆ１およびｆ２
をそれぞれ有する各矩形波パルス信号を合成する信号合
成回路と、この信号合成回路から出力される合成信号に
基づいて圧電ブザーを駆動する駆動回路とを具備してな
る圧電ブザー駆動装置。A pulse generator that generates a reference pulse signal having a predetermined frequency, and a rectangular wave pulse signal having a frequency f corresponding to the resonance frequency of the piezoelectric buzzer based on the reference pulse signal output from the pulse generator, and n f2=
f, (n is an even number) a frequency dividing circuit that outputs a rectangular wave pulse signal having a frequency f2 that satisfies the relationship of (n is an even number);
The above frequencies f1 and f2 output from this frequency dividing circuit
1. A piezoelectric buzzer drive device comprising: a signal synthesis circuit that synthesizes rectangular wave pulse signals having respective rectangular wave pulse signals; and a drive circuit that drives a piezoelectric buzzer based on a synthesized signal output from the signal synthesis circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6021383U JPS59166297U (en) | 1983-04-21 | 1983-04-21 | Piezoelectric buzzer drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6021383U JPS59166297U (en) | 1983-04-21 | 1983-04-21 | Piezoelectric buzzer drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59166297U true JPS59166297U (en) | 1984-11-07 |
Family
ID=30190456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6021383U Pending JPS59166297U (en) | 1983-04-21 | 1983-04-21 | Piezoelectric buzzer drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166297U (en) |
-
1983
- 1983-04-21 JP JP6021383U patent/JPS59166297U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59166297U (en) | Piezoelectric buzzer drive device | |
| JPS59114611U (en) | FM demodulation circuit | |
| JPS6085433U (en) | Square wave/triangular wave generator | |
| JPS6025278U (en) | horizontal oscillation circuit | |
| JPS60123092U (en) | Notification device | |
| JPS59164096U (en) | electronic sound device | |
| JPS5929707U (en) | Coordinate detection device | |
| JPS60101819U (en) | sound effects equipment | |
| JPS6119298U (en) | delay device | |
| JPS58111988A (en) | Modulation system for piezo-electric alarm | |
| JPS58166307U (en) | ultrasound device | |
| JPS6031691U (en) | clock device | |
| JPS6045512U (en) | Sine wave signal generation circuit | |
| JPS5816932U (en) | pulse delay circuit | |
| JPS5848150U (en) | Carrier and alarm sound generation circuit | |
| JPS59136692U (en) | electronic musical instruments | |
| JPS6074195U (en) | electronic sound generator | |
| JPS6019299U (en) | speaker | |
| JPS5850522U (en) | surface acoustic wave filter | |
| JPS6114534U (en) | timer circuit | |
| JPS6076400U (en) | Piezoelectric buzzer drive circuit | |
| JPS5988738U (en) | Microcomputer clock signal generation circuit | |
| JPS60104895U (en) | echo circuit | |
| JPS58137087U (en) | mosquito repellent | |
| JPS59168798U (en) | audio tone effect device |