JPS61109500U - - Google Patents
Info
- Publication number
- JPS61109500U JPS61109500U JP19727384U JP19727384U JPS61109500U JP S61109500 U JPS61109500 U JP S61109500U JP 19727384 U JP19727384 U JP 19727384U JP 19727384 U JP19727384 U JP 19727384U JP S61109500 U JPS61109500 U JP S61109500U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- chime
- controls
- base potential
- circuit consisting
- 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 2
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案実施例の回路図、第２図は同上
のスピーカ入力の波形図、第３図は同上のメロデ
イ周波数ｆ１信号の波形図、第４図は同上のトリ
ガー出力の波形図、第５図は本考案の他の実施例
の回路図であり、Ｑ１〜Ｑ５はトランジスタ、Ｒ
１〜Ｒ５は抵抗、Ｃはコンデンサである。
Fig. 1 is a circuit diagram of the embodiment of the present invention, Fig. 2 is a waveform diagram of the speaker input as above, Fig. 3 is a waveform diagram of the melody frequency f1 signal as above, and Fig. 4 is a waveform diagram of the trigger output as above. , FIG. 5 is a circuit diagram of another embodiment of the present invention, Q 1 to Q 5 are transistors, R
1 to R5 are resistors, and C is a capacitor.
Claims (1)
する第１のトランジスタの直列回路と、チヤイム
のメロデイ周波数によつて駆動され前記第１のト
ランジスタのベース電位を制御する第２のトラン
ジスタと、同じく前記第１のトランジスタのベー
ス電位を制御する第３のトランジスタと、分圧抵
抗及びコンデンサよりなる時定数回路の電源接続
を制御する第４のトランジスタと、チヤイムのメ
ロデイ周波数の変化点に同期して制御さたる第５
のトランジスタとより成るチヤイム音発生回図。 a series circuit of a speaker that generates a chime sound and a first transistor that drives it; a second transistor that is driven by the melody frequency of the chime and controls the base potential of the first transistor; a third transistor that controls the base potential of the transistor, a fourth transistor that controls the power supply connection of the time constant circuit consisting of a voltage dividing resistor and a capacitor, and a fourth transistor that is controlled in synchronization with the change point of the melody frequency of the chime. Fifth
Chime sound generation circuit consisting of a transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19727384U JPS61109500U (en) | 1984-12-24 | 1984-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19727384U JPS61109500U (en) | 1984-12-24 | 1984-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61109500U true JPS61109500U (en) | 1986-07-11 |
Family
ID=30755468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19727384U Pending JPS61109500U (en) | 1984-12-24 | 1984-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61109500U (en) |
-
1984
- 1984-12-24 JP JP19727384U patent/JPS61109500U/ja active Pending
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