JPS61128814U - - Google Patents
Info
- Publication number
- JPS61128814U JPS61128814U JP1240985U JP1240985U JPS61128814U JP S61128814 U JPS61128814 U JP S61128814U JP 1240985 U JP1240985 U JP 1240985U JP 1240985 U JP1240985 U JP 1240985U JP S61128814 U JPS61128814 U JP S61128814U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- protection
- microcomputer
- detection
- protection 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第1図は本考案の保護回路装置の一実施例を示
す構成図、第2図は第1図例の検出回路の一例を
示す回路図、第3図は第1図例の保護回路装置の
動作の説明に供するフローチヤート図である。
2L,2Rは出力増幅回路、3は負荷、4は保
護回路、5は検出回路、6はマイクロコンピユー
タ、8は表示部である。
FIG. 1 is a block diagram showing an embodiment of the protection circuit device of the present invention, FIG. 2 is a circuit diagram showing an example of the detection circuit of the example in FIG. 1, and FIG. 3 is a circuit diagram of the protection circuit device of the example in FIG. FIG. 3 is a flowchart diagram for explaining the operation. 2L and 2R are output amplifier circuits, 3 is a load, 4 is a protection circuit, 5 is a detection circuit, 6 is a microcomputer, and 8 is a display section.
Claims (1)
検出する検出回路と、該検出回路の検出信号をマ
イクロコンピユータに供給する入力手段と、該マ
イクロコンピユータの出力信号により上記負荷及
び出力増幅回路を保護する保護回路と、上記マイ
クロコンピユータの出力信号を保持する保持手段
とを有し、上記保護回路が保護動作をしたときに
は再度電源をオンしたときに上記保護回路の保護
動作を解除する様にしたことを特徴とする保護回
路装置。 A detection circuit for detecting a short circuit in the load and abnormal DC voltage of the output amplifier circuit, an input means for supplying a detection signal of the detection circuit to a microcomputer, and an output signal of the microcomputer to protect the load and the output amplifier circuit. The device has a protection circuit and a holding means for holding the output signal of the microcomputer, and when the protection circuit performs a protection operation, the protection operation of the protection circuit is canceled when the power is turned on again. Features protection circuit device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1240985U JPS61128814U (en) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1240985U JPS61128814U (en) | 1985-01-31 | 1985-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61128814U true JPS61128814U (en) | 1986-08-12 |
Family
ID=30495444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1240985U Pending JPS61128814U (en) | 1985-01-31 | 1985-01-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61128814U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5990488A (en) * | 1982-11-15 | 1984-05-24 | Matsushita Electric Ind Co Ltd | Audio device |
-
1985
- 1985-01-31 JP JP1240985U patent/JPS61128814U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5990488A (en) * | 1982-11-15 | 1984-05-24 | Matsushita Electric Ind Co Ltd | Audio device |
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