JPS5854192U - Speaker protection circuit - Google Patents
Speaker protection circuitInfo
- Publication number
- JPS5854192U JPS5854192U JP14789981U JP14789981U JPS5854192U JP S5854192 U JPS5854192 U JP S5854192U JP 14789981 U JP14789981 U JP 14789981U JP 14789981 U JP14789981 U JP 14789981U JP S5854192 U JPS5854192 U JP S5854192U
- Authority
- JP
- Japan
- Prior art keywords
- protection circuit
- speaker protection
- excessive
- detects
- detection circuit
- 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
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
図は本考案になるスピーカの保護回路を有する電力増幅
器の１実施例の回路図である。
１・・・・・・入力端子、２・・・・・・プリドライブ
段、３・・・・・・電力増幅段、４・・・・・・出力端
子、５・・・・・・電源回路、６・・・・・・制御回路
、７・・・・・・検出回路、Ｒ□〜Ｒ１３・・・・・・
抵抗、Ｃ１・・・・・・コンデンサ、Ｑ□〜Ｑ１□・・
・・・・トランジスタ。The figure is a circuit diagram of one embodiment of a power amplifier having a speaker protection circuit according to the present invention. 1...Input terminal, 2...Predrive stage, 3...Power amplification stage, 4...Output terminal, 5...Power supply Circuit, 6...Control circuit, 7...Detection circuit, R□~R13...
Resistor, C1...Capacitor, Q□~Q1□...
...Transistor.
Claims (1)
過大直流電圧を検出する検出回路と、該検出回路により
過大直流電圧が検出されたときプリドライブ段への給電
を阻止する制御回路とよりなるスピーカの保護回路。′A speaker consisting of a detection circuit that detects an excessive DC voltage output due to an abnormality in the power amplification stage of an OCL power amplifier, and a control circuit that blocks power supply to the predrive stage when the detection circuit detects an excessive DC voltage. protection circuit. ′
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14789981U JPS5854192U (en) | 1981-10-05 | 1981-10-05 | Speaker protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14789981U JPS5854192U (en) | 1981-10-05 | 1981-10-05 | Speaker protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5854192U true JPS5854192U (en) | 1983-04-13 |
Family
ID=29940735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14789981U Pending JPS5854192U (en) | 1981-10-05 | 1981-10-05 | Speaker protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854192U (en) |
-
1981
- 1981-10-05 JP JP14789981U patent/JPS5854192U/en active Pending
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