JPS6142190U - Speaker switching device - Google Patents
Speaker switching deviceInfo
- Publication number
- JPS6142190U JPS6142190U JP12797784U JP12797784U JPS6142190U JP S6142190 U JPS6142190 U JP S6142190U JP 12797784 U JP12797784 U JP 12797784U JP 12797784 U JP12797784 U JP 12797784U JP S6142190 U JPS6142190 U JP S6142190U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- speaker
- terminal
- switching device
- speaker switching
- 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
Landscapes
- Relay Circuits (AREA)
- Control Of Amplification And Gain Control (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図はこの考案の一実施例によるスピーカ切換装置の
回路図、第１表は第１図の装置によりリレーの開閉とス
ピーカの駆動との相関を示す表、第２図および第３図は
従来の予ピーカ切換装置の回路図である。
１・・・電力増幅器、２・・・第１のリレー、３・・・
第２のリレー、４・・・第１のスピーカ、５・・・第２
のスピーカ、６・・・マイクロコンピュータ、７，８・
・・トランジスタ。Figure 1 is a circuit diagram of a speaker switching device according to an embodiment of this invention, Table 1 is a table showing the correlation between relay opening/closing and speaker drive using the device in Figure 1, and Figures 2 and 3 are FIG. 2 is a circuit diagram of a conventional pre-peaker switching device. 1... Power amplifier, 2... First relay, 3...
Second relay, 4...first speaker, 5...second
speaker, 6...microcomputer, 7,8...
...Transistor.
Claims (1)
第１のリレーのオン端子を第１のスピーカの（＋）側に
、上記第１のリレーのオフ端子を第２のリレーのオン端
子に、上記第１のスピーカの（−）側を上記第２のリレ
ーのコモン端子および上記第２のスピーカの（＋）側に
それぞれ接続し、上記第２のリレーのオフ端子および上
記第２のスピーカの（−）側を接地して、マイクロコン
ピュータ等の作用で上記第１のリレーおよび第２のリレ
ーを作動させて、上記第１のスピーカおよび第２のスピ
ーカを切換え、異常時には上記マイクロコンピュータの
指令で上記第１のリレーおよび第２のリレーをオフ状態
にすることを特徴とするスピーカ切換装置。The output of the power amplifier is connected to the common terminal of the first relay, the on terminal of this first relay is connected to the (+) side of the first speaker, and the off terminal of the first relay is connected to the on terminal of the second relay. The (-) side of the first speaker is connected to the common terminal of the second relay and the (+) side of the second speaker, respectively, and the off terminal of the second relay and the second The (-) side of the speaker is grounded, and the first and second relays are activated by the action of a microcomputer, etc., to switch between the first and second speakers. A speaker switching device characterized in that the first relay and the second relay are turned off in response to a command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12797784U JPS6142190U (en) | 1984-08-22 | 1984-08-22 | Speaker switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12797784U JPS6142190U (en) | 1984-08-22 | 1984-08-22 | Speaker switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6142190U true JPS6142190U (en) | 1986-03-18 |
Family
ID=30686609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12797784U Pending JPS6142190U (en) | 1984-08-22 | 1984-08-22 | Speaker switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6142190U (en) |
-
1984
- 1984-08-22 JP JP12797784U patent/JPS6142190U/en active Pending
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