JPS6027595U - speaker protection circuit - Google Patents
speaker protection circuitInfo
- Publication number
- JPS6027595U JPS6027595U JP11970383U JP11970383U JPS6027595U JP S6027595 U JPS6027595 U JP S6027595U JP 11970383 U JP11970383 U JP 11970383U JP 11970383 U JP11970383 U JP 11970383U JP S6027595 U JPS6027595 U JP S6027595U
- Authority
- JP
- Japan
- Prior art keywords
- protection circuit
- power amplifier
- speaker protection
- speaker
- input signal
- 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.)
- Granted
Links
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図は従来例のオーディオ全体の概略回路ブロック図
、第２図はその要部の回路構成図、第３図は本考案の一
実施例を示す要部の回路構成図、第４図はその具体例を
示す回路図である。
１・・・ヘッドアンプ、２・・・イコライザアンプ、３
・・・トーンアンプ、４・・・フラットアンプ、５・・
・パワーアンプ、６・・・スピーカ、７・・・ミューテ
ィング回路、８・・・プロテクションスイッチ、９・・
・切換スイッチ、１０・・・フェードイン入力制御部、
Ｓ□ｔ Ｓ２・・・スイッチ、Ｑｌ？ Ｑ２・・・ト
ランジスタスイッチ、Ｃ，、Ｃ２・・・コンデンサ、Ｒ
１−Ｒ５・・・抵抗、Ｋ・・・電流制御形可変抵抗素子
。Fig. 1 is a schematic circuit block diagram of the entire conventional audio system, Fig. 2 is a circuit diagram of its main parts, Fig. 3 is a circuit diagram of main parts showing an embodiment of the present invention, and Fig. 4 is a circuit diagram of its main parts. FIG. 2 is a circuit diagram showing a specific example thereof. 1...Head amplifier, 2...Equalizer amplifier, 3
...Tone amplifier, 4...Flat amplifier, 5...
・Power amplifier, 6... Speaker, 7... Muting circuit, 8... Protection switch, 9...
・Selector switch, 10...fade-in input control section,
S□t S2...Switch, Ql? Q2...Transistor switch, C,, C2...Capacitor, R
1-R5...Resistance, K...Current control type variable resistance element.
Claims (1)
チを介装し、上記プロテクションスイッチをミューティ
ング回路からのリレー制御で切換動作するようにしたも
のにおいて、上記リレー制御と同期してパワーアンプへ
の入力信号をフェードインし出力するように、上記パワ
ーアンプに入力信号制御部を設けたことを特徴とするス
ピーカ保護回路。A protection switch is interposed between the power amplifier and the speaker, and the protection switch is switched by relay control from the muting circuit, and the input signal to the power amplifier is synchronized with the relay control. A speaker protection circuit characterized in that the power amplifier is provided with an input signal control section so as to output with a fade-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11970383U JPH0713348Y2 (en) | 1983-07-29 | 1983-07-29 | Speaker protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11970383U JPH0713348Y2 (en) | 1983-07-29 | 1983-07-29 | Speaker protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6027595U true JPS6027595U (en) | 1985-02-25 |
| JPH0713348Y2 JPH0713348Y2 (en) | 1995-03-29 |
Family
ID=30274615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11970383U Expired - Lifetime JPH0713348Y2 (en) | 1983-07-29 | 1983-07-29 | Speaker protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0713348Y2 (en) |
-
1983
- 1983-07-29 JP JP11970383U patent/JPH0713348Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0713348Y2 (en) | 1995-03-29 |
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