JPS5842896U - Clock buzzer drive circuit - Google Patents
Clock buzzer drive circuitInfo
- Publication number
- JPS5842896U JPS5842896U JP13853581U JP13853581U JPS5842896U JP S5842896 U JPS5842896 U JP S5842896U JP 13853581 U JP13853581 U JP 13853581U JP 13853581 U JP13853581 U JP 13853581U JP S5842896 U JPS5842896 U JP S5842896U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- buzzer drive
- battery
- clock
- watch
- 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
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Electromechanical Clocks (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図は昇圧コイルを用いた従来の時計用圧電ブザー駆
動回路図であり、第２図は第１図の動作波形図である。
第３図は本考案に係るＭＯＳ）ランジスタと抵抗を用い
て構成した時計用圧電ブザー駆動回路図である。ｉ４図
は本考案の他の実施例であるＭＯＳ）ランジスタを２個
用いて構成した時計用圧電ブザー駆動回路図であり、第
５図は第４図の動作波形図である。
３０１．４１２・・・・・・ＭＯＳ ）ランジスタ、３
０２・・・・・・抵抗、３０３・・・・・・振動源とし
て圧電素子を用いた圧電ブザー、３０４・・・・・・電
池、５０１・・・・・・第４図に於けるＭＯＳ）ランジ
スタ入力端子３１１．４１２に加わる駆動信号である。
５０２・・・・・・第４図のＭＯＳ）ランジスタ３０１
のドレイン、ソース間に流れる電流波形図である。５０
３・・・・・・第４図のＭＯＳ）ランジスタ４０２と圧
電ブザー３０３とで構成された放電回路に流れる電流波
形図である。FIG. 1 is a diagram of a conventional piezoelectric buzzer drive circuit for a watch using a boost coil, and FIG. 2 is an operating waveform diagram of FIG. 1. FIG. 3 is a diagram of a piezoelectric buzzer drive circuit for a watch constructed using a MOS transistor and a resistor according to the present invention. Figure i4 is a diagram of a piezoelectric buzzer drive circuit for a watch constructed using two MOS transistors according to another embodiment of the present invention, and Figure 5 is an operating waveform diagram of Figure 4. 301.412...MOS) transistor, 3
02...Resistor, 303...Piezoelectric buzzer using a piezoelectric element as a vibration source, 304...Battery, 501...MOS in Figure 4 ) is the drive signal applied to the transistor input terminals 311, 412. 502...MOS in Figure 4) transistor 301
FIG. 3 is a waveform diagram of a current flowing between the drain and source of the device. 50
3... is a current waveform diagram flowing through a discharge circuit composed of a MOS transistor 402 and a piezoelectric buzzer 303 in FIG. 4.
Claims (2)
駆動する回路において、圧電素子と抵抗素子とを並列接
続したループ回路の一端を、電池の一方の端子に接続し
、前記ループ回路の他端をスイッチング素子を介して、
電池の他端に接続したことを特徴とする時計用ブザー駆
動回路。(1) In a circuit that drives a piezoelectric buzzer for a watch using a piezoelectric element as a vibration source, one end of a loop circuit in which a piezoelectric element and a resistance element are connected in parallel is connected to one terminal of a battery, and the other end of the loop circuit is connected to one terminal of a battery. The end is connected through a switching element,
A clock buzzer drive circuit characterized in that it is connected to the other end of a battery.
ＭＯＳ）ランジスタであることを特徴とする時計用ブザ
ー駆動回路。(2) Utility Model Registration A watch buzzer drive circuit characterized in that the resistive element according to claim 1 is a MOS transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13853581U JPS5842896U (en) | 1981-09-18 | 1981-09-18 | Clock buzzer drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13853581U JPS5842896U (en) | 1981-09-18 | 1981-09-18 | Clock buzzer drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5842896U true JPS5842896U (en) | 1983-03-22 |
Family
ID=29931756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13853581U Pending JPS5842896U (en) | 1981-09-18 | 1981-09-18 | Clock buzzer drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5842896U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS554052A (en) * | 1978-06-23 | 1980-01-12 | Matsushita Electric Works Ltd | Driving circuit for piezoelectric sound generation element |
-
1981
- 1981-09-18 JP JP13853581U patent/JPS5842896U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS554052A (en) * | 1978-06-23 | 1980-01-12 | Matsushita Electric Works Ltd | Driving circuit for piezoelectric sound generation element |
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