JPS6356899U - - Google Patents
Info
- Publication number
- JPS6356899U JPS6356899U JP15109086U JP15109086U JPS6356899U JP S6356899 U JPS6356899 U JP S6356899U JP 15109086 U JP15109086 U JP 15109086U JP 15109086 U JP15109086 U JP 15109086U JP S6356899 U JPS6356899 U JP S6356899U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric speaker
- coil
- series
- piezoelectric
- drive circuit
- 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 9
- 230000003321 amplification Effects 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
Description
第１図：本考案の実施例の駆動回路図、第２図
ａ：信号波形図、第２図ｂ：周波数に対する電圧
増幅度を示した図、第３図：本考案の別の実施例
の駆動回路図、第４図：信号波形図、第５図：従
来駆動回路図、第６図：信号波形図、第７図ａ〜
ｄ：電圧ベクトル図、第８図：ωと電圧増幅度の
関係を示す図。
ここに、１：圧電スピーカー、２：コイル、３
：コイルの抵抗成分、４：コイルのインダクタン
ス成分、５：抵抗、６：スピーカー駆動信号発生
回路、７：スピーカー駆動信号発生回路、８：ト
ランジスタ、９：昇圧コイル、１０：圧電スピー
カー。
Figure 1: Drive circuit diagram of an embodiment of the present invention, Figure 2a: Signal waveform diagram, Figure 2b: Diagram showing voltage amplification versus frequency, Figure 3: Another embodiment of the present invention. Drive circuit diagram, Figure 4: Signal waveform diagram, Figure 5: Conventional drive circuit diagram, Figure 6: Signal waveform diagram, Figure 7 a~
d: Voltage vector diagram, FIG. 8: Diagram showing the relationship between ω and voltage amplification degree. Here, 1: piezoelectric speaker, 2: coil, 3
: Resistance component of the coil, 4: Inductance component of the coil, 5: Resistance, 6: Speaker drive signal generation circuit, 7: Speaker drive signal generation circuit, 8: Transistor, 9: Boost coil, 10: Piezoelectric speaker.
Claims (1)
カー、前記圧電スピーカーと直列に接続したコイ
ル、前記直列に接続した圧電スピーカーとコイル
に対し並列に接続した抵抗とから構成されること
を特徴とする小型携帯装置用圧電スピーカー駆動
回路。 A compact device characterized by comprising: a piezoelectric speaker formed by pasting a piezoelectric element on a diaphragm; a coil connected in series with the piezoelectric speaker; and a resistor connected in parallel with the piezoelectric speaker connected in series and the coil. Piezoelectric speaker drive circuit for mobile devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15109086U JPS6356899U (en) | 1986-10-01 | 1986-10-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15109086U JPS6356899U (en) | 1986-10-01 | 1986-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6356899U true JPS6356899U (en) | 1988-04-15 |
Family
ID=31067840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15109086U Pending JPS6356899U (en) | 1986-10-01 | 1986-10-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6356899U (en) |
-
1986
- 1986-10-01 JP JP15109086U patent/JPS6356899U/ja active Pending
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