JPS58189696U - speaker protection circuit - Google Patents
speaker protection circuitInfo
- Publication number
- JPS58189696U JPS58189696U JP8471582U JP8471582U JPS58189696U JP S58189696 U JPS58189696 U JP S58189696U JP 8471582 U JP8471582 U JP 8471582U JP 8471582 U JP8471582 U JP 8471582U JP S58189696 U JPS58189696 U JP S58189696U
- Authority
- JP
- Japan
- Prior art keywords
- protection circuit
- speaker protection
- speaker
- gain control
- power amplifier
- 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
- 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図はオーディオソースのダイナミックレンジを示す
特性図、第２図はこの考案のスピーカ保護回路のブロッ
ク図、第３図、第４図はゲインコントロール回路の具体
的な実施例を示す回路図である。
図中、１はゲインコントロール回路、２はパワアンプ、
３はスピーカユニット、４はバイパスフィルタ、５は検
出回路を示す。Figure 1 is a characteristic diagram showing the dynamic range of an audio source, Figure 2 is a block diagram of the speaker protection circuit of this invention, and Figures 3 and 4 are circuit diagrams showing specific examples of the gain control circuit. be. In the figure, 1 is a gain control circuit, 2 is a power amplifier,
3 is a speaker unit, 4 is a bypass filter, and 5 is a detection circuit.
Claims (1)
てスピーカに音響信号を供給する回路において、前記パ
ワアンプの出力に接続されているバイパスフィルタと、
レベル検出器により前記音響信号の高域周波数成分が一
定のレベル以上となったとき、前記ゲインコントロール
回路に減衰動作をさせるようにしたことを特徴とするス
ピーカ保護回路。In a circuit that supplies an acoustic signal to a speaker using at least a gain control circuit and a power amplifier, a bypass filter connected to the output of the power amplifier;
A speaker protection circuit characterized in that when a high frequency component of the acoustic signal exceeds a certain level by a level detector, the gain control circuit performs an attenuation operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8471582U JPS58189696U (en) | 1982-06-09 | 1982-06-09 | speaker protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8471582U JPS58189696U (en) | 1982-06-09 | 1982-06-09 | speaker protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58189696U true JPS58189696U (en) | 1983-12-16 |
Family
ID=30093643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8471582U Pending JPS58189696U (en) | 1982-06-09 | 1982-06-09 | speaker protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58189696U (en) |
-
1982
- 1982-06-09 JP JP8471582U patent/JPS58189696U/en active Pending
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