JPS63153298U - - Google Patents
Info
- Publication number
- JPS63153298U JPS63153298U JP4495187U JP4495187U JPS63153298U JP S63153298 U JPS63153298 U JP S63153298U JP 4495187 U JP4495187 U JP 4495187U JP 4495187 U JP4495187 U JP 4495187U JP S63153298 U JPS63153298 U JP S63153298U
- Authority
- JP
- Japan
- Prior art keywords
- time constant
- piezoelectric element
- oscillator
- excitation
- piezoelectric
- 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
- 230000005284 excitation Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図はこの考案の圧電ブザーの実施例を示す
図、第２図は第１図に示した圧電ブザーの動作を
示す図、第３図は第１図に示した圧電ブザーの実
験結果を示す図である。
２…圧電ブザー素子（圧電素子）、１０…励振
駆動回路、２２，２４…キヤパシタ、２６，３０
…抵抗、３２…スイツチ。
Fig. 1 shows an example of the piezoelectric buzzer of this invention, Fig. 2 shows the operation of the piezoelectric buzzer shown in Fig. 1, and Fig. 3 shows the experimental results of the piezoelectric buzzer shown in Fig. 1. FIG. 2... Piezoelectric buzzer element (piezoelectric element), 10... Excitation drive circuit, 22, 24... Capacitor, 26, 30
...Resistance, 32...Switch.
Claims (1)
換えで発振周波数が変更可能な発振器を用いて、
この発振器の時定数を切り換えて圧電素子の励振
周波数を可変する圧電ブザー。 Using an oscillator whose oscillation frequency can be changed by changing the time constant in the excitation drive circuit that drives the piezoelectric element,
A piezoelectric buzzer that changes the excitation frequency of the piezoelectric element by switching the time constant of this oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4495187U JPS63153298U (en) | 1987-03-26 | 1987-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4495187U JPS63153298U (en) | 1987-03-26 | 1987-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63153298U true JPS63153298U (en) | 1988-10-07 |
Family
ID=30863248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4495187U Pending JPS63153298U (en) | 1987-03-26 | 1987-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63153298U (en) |
-
1987
- 1987-03-26 JP JP4495187U patent/JPS63153298U/ja active Pending