KR900010614Y1 - 오디오 파워 앰프의 과 입력보호 회로 - Google Patents
오디오 파워 앰프의 과 입력보호 회로 Download PDFInfo
- Publication number
- KR900010614Y1 KR900010614Y1 KR2019870022706U KR870022706U KR900010614Y1 KR 900010614 Y1 KR900010614 Y1 KR 900010614Y1 KR 2019870022706 U KR2019870022706 U KR 2019870022706U KR 870022706 U KR870022706 U KR 870022706U KR 900010614 Y1 KR900010614 Y1 KR 900010614Y1
- Authority
- KR
- South Korea
- Prior art keywords
- input
- overvoltage
- voltage
- power amplifier
- resistor
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (1)
- 입력단(IN)과 연결된 볼륨 조절용 가변저항(VR)을 통하여 가변된 전압을 파워 앰프(P-Amp)에 인가시켜 파워 앰프(P-Amp)로 하여금 출력토록 된 것에 있어서, 상기 가변저항(VR)을 통해 인가되는 전압을 전압검출저항(R1)과 반파 정류 다이오드(D), 콘덴서(C), 저항(R2)로된 지연회로(가)와 비반전 연산증폭기(OP-Amp)로 구성된 과전압 검출부(1)를 통해서 과전압을 검출하고, 상기 과전압 검출부(1)로부터 출력되는 신호에 따라 온·오프 구동되어서 상기 파워 앰프(P-Amp)로 입력되는 과전압을 차단, 인가시키는 바이어스 저항(R4-R7), 트랜지스터(Q1) (Q2)로 구성된 입력전압 제어부(2)로 구성하여서 된 것을 특징으로 하는 오디오 파워 앰프의 과 입력 보호회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870022706U KR900010614Y1 (ko) | 1987-12-22 | 1987-12-22 | 오디오 파워 앰프의 과 입력보호 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870022706U KR900010614Y1 (ko) | 1987-12-22 | 1987-12-22 | 오디오 파워 앰프의 과 입력보호 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890015038U KR890015038U (ko) | 1989-08-11 |
KR900010614Y1 true KR900010614Y1 (ko) | 1990-11-23 |
Family
ID=19270596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019870022706U KR900010614Y1 (ko) | 1987-12-22 | 1987-12-22 | 오디오 파워 앰프의 과 입력보호 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900010614Y1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200458846Y1 (ko) * | 2010-05-07 | 2012-03-16 | 김장배 | 오디오 파워 앰프 |
-
1987
- 1987-12-22 KR KR2019870022706U patent/KR900010614Y1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR890015038U (ko) | 1989-08-11 |
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A201 | Request for examination | ||
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19871222 |
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Patent event date: 19871222 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
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Comment text: Notification of reason for refusal Patent event code: UE09021S01D Patent event date: 19900531 |
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UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19901024 |
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Patent event date: 19910212 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
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