JPS59141399U - Electronic buzzer drive circuit - Google Patents
Electronic buzzer drive circuitInfo
- Publication number
- JPS59141399U JPS59141399U JP3600783U JP3600783U JPS59141399U JP S59141399 U JPS59141399 U JP S59141399U JP 3600783 U JP3600783 U JP 3600783U JP 3600783 U JP3600783 U JP 3600783U JP S59141399 U JPS59141399 U JP S59141399U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- electronic buzzer
- transistor
- utility
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Oscillators With Electromechanical Resonators (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図は従来の電子ブザーの駆動回路を示す回路図、第
２図は本考案に係る電子ブザーの駆動回路の一実施例を
示す回路図である。
１・・・・・・導電板、２・・・・・・３端子形圧電振
動子、３・・・・・・主電極、４・・・・・・フィード
バック電極、Ｃ・・・・・・コンデンサ、Ｅ・・・・・
・電源、Ｌ・・・・・・発振コイル、Ｑ・・・・・・ト
ランジスタ、Ｒ１，Ｒ２・・・・・・抵抗。FIG. 1 is a circuit diagram showing a conventional electronic buzzer driving circuit, and FIG. 2 is a circuit diagram showing an embodiment of the electronic buzzer driving circuit according to the present invention. 1... Conductive plate, 2... 3-terminal piezoelectric vibrator, 3... Main electrode, 4... Feedback electrode, C...・Capacitor, E...
・Power supply, L...Oscillation coil, Q...Transistor, R1, R2...Resistance.
Claims (3)
子圧電振動子の主電極を接続し、前記圧電振動子のフィ
ードバック電極を前記トランジスタの入力側に接続して
なる電子ブザーの駆動回路において、前記トランジスタ
の出力端に、前記発振コイルに生じる高調波を抑圧する
コンデンサを接続してなることを特徴とする電子ブザー
の駆動回路。(1) An oscillation coil and a main electrode of a terminal piezoelectric vibrator are connected to an output end of a transistor, and a feedback electrode of the piezoelectric vibrator is connected to an input side of the transistor, in the drive circuit of an electronic buzzer. 1. A drive circuit for an electronic buzzer, characterized in that a capacitor for suppressing harmonics generated in the oscillation coil is connected to an output terminal of a transistor.
用新案登録請求の範囲第１項記載の電子ブザーの駆動回
路。(2) The electronic buzzer drive circuit according to claim 1, which is a utility model, and comprises a capacitor connected to both ends of an oscillation coil.
ンサを接続してなる実用新案登録請求の範囲第１項記載
の電子ブザーの駆動回路。(3) The drive circuit for an electronic buzzer according to claim 1, which is a utility model registration, and comprises a capacitor connected between the main electrode of a three-terminal piezoelectric vibrator and the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3600783U JPS59141399U (en) | 1983-03-12 | 1983-03-12 | Electronic buzzer drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3600783U JPS59141399U (en) | 1983-03-12 | 1983-03-12 | Electronic buzzer drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59141399U true JPS59141399U (en) | 1984-09-21 |
Family
ID=30166678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3600783U Pending JPS59141399U (en) | 1983-03-12 | 1983-03-12 | Electronic buzzer drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59141399U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5754198B2 (en) * | 1979-06-12 | 1982-11-17 |
-
1983
- 1983-03-12 JP JP3600783U patent/JPS59141399U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5754198B2 (en) * | 1979-06-12 | 1982-11-17 |
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