JPH0258298U - - Google Patents
Info
- Publication number
- JPH0258298U JPH0258298U JP13601288U JP13601288U JPH0258298U JP H0258298 U JPH0258298 U JP H0258298U JP 13601288 U JP13601288 U JP 13601288U JP 13601288 U JP13601288 U JP 13601288U JP H0258298 U JPH0258298 U JP H0258298U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic transducer
- circuit
- transistor
- pole
- electromagnet
- 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 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Description
第１図は本考案に係る音響変換装置の電気回路
図、第２図は本考案に係る音響変換装置の別の実
施例における電気回路図、第３図は前記電磁型音
響変換器の従来例を示す断面図、第４図は従来の
音響変換装置の電気回路図である。
Ａ……音響変換器、Ｂ……発振回路、１……ケ
ース、２……コイル、３……ポール、５……永久
磁石、６……振動板、８……トランジスタ、９…
…抵抗、１０……コンデンサ、１１……論理素子
。
FIG. 1 is an electric circuit diagram of an acoustic transducer according to the present invention, FIG. 2 is an electric circuit diagram of another embodiment of the acoustic transducer according to the present invention, and FIG. 3 is a conventional example of the electromagnetic acoustic transducer. FIG. 4 is an electrical circuit diagram of a conventional acoustic transducer. A...Acoustic transducer, B...Oscillation circuit, 1...Case, 2...Coil, 3...Pole, 5...Permanent magnet, 6...Diaphragm, 8...Transistor, 9...
...Resistor, 10...Capacitor, 11...Logic element.
Claims (1)
回路とを備える音響変換装置であつて、 前記音響変換器は、ポールにコイルを巻装した
電磁石と、前記ポールの周りに配置された永久磁
石と、前記ポールの先端面と空隙を介して対向す
るように支持された振動板とを備えており、 前記発振回路は、トランジスタと、抵抗及びコ
ンデンサで構成されるＲＣ回路と、１つの論理素
子とを含み、 前記トランジスタは、主電極が前記電磁石の前
記コイルに直列に接続されており、 前記ＲＣ回路は、前記トランジスタのコレクタ
側からエネルギー供給を受けるように、前記トラ
ンジスタに接続されており、 前記論理素子は、前記ＲＣ回路のコンデンサ端
子電圧が所定値に達したときに出力を生じるよう
に、前記ＲＣ回路に接続されており、その出力側
は前記トランジスタのベースに接続されているこ
と、 を特徴とする音響変換装置。[Claims for Utility Model Registration] An acoustic transducer comprising an acoustic transducer and an oscillation circuit that drives the acoustic transducer, the acoustic transducer comprising: an electromagnet having a coil wound around a pole; and a diaphragm supported so as to face the tip end surface of the pole across a gap, and the oscillation circuit is composed of a transistor, a resistor, and a capacitor. an RC circuit and one logic element, the transistor having a main electrode connected in series with the coil of the electromagnet, the RC circuit receiving energy from the collector side of the transistor; The logic element is connected to the RC circuit so as to generate an output when a capacitor terminal voltage of the RC circuit reaches a predetermined value, and the output side thereof is connected to the transistor. An acoustic transducer characterized by being connected to a base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13601288U JPH0258298U (en) | 1988-10-18 | 1988-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13601288U JPH0258298U (en) | 1988-10-18 | 1988-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0258298U true JPH0258298U (en) | 1990-04-26 |
Family
ID=31396129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13601288U Pending JPH0258298U (en) | 1988-10-18 | 1988-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0258298U (en) |
-
1988
- 1988-10-18 JP JP13601288U patent/JPH0258298U/ja active Pending
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