KR890005975A - 푸시풀증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로 - Google Patents
푸시풀증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로 Download PDFInfo
- Publication number
- KR890005975A KR890005975A KR1019880012531A KR880012531A KR890005975A KR 890005975 A KR890005975 A KR 890005975A KR 1019880012531 A KR1019880012531 A KR 1019880012531A KR 880012531 A KR880012531 A KR 880012531A KR 890005975 A KR890005975 A KR 890005975A
- Authority
- KR
- South Korea
- Prior art keywords
- output
- circuit
- push
- pull amplifier
- amplifier
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
-
- 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
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply
-
- 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
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/307—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in push-pull amplifiers
-
- 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
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3217—Modifications of amplifiers to reduce non-linear distortion in single ended push-pull amplifiers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Electronic Switches (AREA)
Abstract
Description
Claims (5)
- 푸시풀 증폭기의 출력단의 출력에 있는 부하임피던스는 기준전위 및 푸시풀 증폭기 출력단에 흐르는 폐로회로를 측정하는 최소한 하나의 감지소자와 연결되어 있고, 이것에 의해 푸시풀 증폭기 출력단의 각 분기에는 각각 하나의 감지소자가 연결되며, 감지소자에서는 기준전위에 대해 측정된 전압이 각각 출력될 수 있고, 이 전압은 차동증폭기의 각 입력에 인가되며, 차동증폭기의 출력은 비교기의 한 입력에 접속되고, 비교기의 다른 입력은 기준전위에 놓이며, 비교기의 출력은 전하저장장치를 충전시키도록 전자스위치를 제어하고, 전하저장장치의 부하전압은 감지소자에 의해 측정된, 폐로전류값에 비례하는 전압값이 기준전위와 일치하도록 제어 트랜지스터를 통해 푸시풀 증폭기의 폐로전류를 제어하는 트랜스레스 트랜지스터 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로에 있어서, 차동증폭기(10)의 두 입력중 하나에 위상각회전수자(20)가 연결되는 것을 특징으로 하는 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로.
- 제1항에 있어서, 차동증폭기(10)의 반전 또는 비반전입력에 있는 콘덴서(20)가 접지로 접속되어 있는것을 특징으로 하는 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로.
- 제2항에 있어서, 콘덴서의 용량이 10pF인것을 특징으로 하는 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로.
- 제1항에 있어서, 차동증폭기(10)의 반전 또는 비반전 입력라인에 인덕터가 연결되는 것을 특징으로하는 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로.
- 제4항에 있어서, 인덕터의 값이 1mH인것을 특징으로 하는 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3732915.4 | 1987-09-30 | ||
DE19873732915 DE3732915A1 (de) | 1986-09-20 | 1987-09-30 | Schaltungsanordnung zur automatischen einstellung des ruhestroms in einer gegentaktendstufe |
DEP3732915.4 | 1987-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890005975A true KR890005975A (ko) | 1989-05-18 |
KR0130903B1 KR0130903B1 (ko) | 1998-04-23 |
Family
ID=6337200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880012531A KR0130903B1 (ko) | 1987-09-30 | 1988-09-28 | 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하는 회로 |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0309693B1 (ko) |
JP (1) | JP2685102B2 (ko) |
KR (1) | KR0130903B1 (ko) |
AT (1) | ATE97274T1 (ko) |
DE (2) | DE3732915A1 (ko) |
ES (1) | ES2046258T3 (ko) |
HK (1) | HK14496A (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3920802A1 (de) * | 1989-06-24 | 1991-01-10 | Telefunken Electronic Gmbh | Pull- und push-verstaerkerschaltung mit ruhestromstabilisierung |
DE3920803C1 (en) * | 1989-06-24 | 1990-12-20 | Telefunken Electronic Gmbh, 7100 Heilbronn, De | Push=pull amplifier with two output stages - has input difference stage and current or power source for setting closed circuit current and no-load amplification |
JP2867756B2 (ja) * | 1991-08-30 | 1999-03-10 | 日本電気株式会社 | 消費電力制御装置 |
WO2000011779A1 (en) * | 1998-08-19 | 2000-03-02 | Ryszard Parosa | Circuit for precise sensing and regulation of quiescent dc current in transistor power amplifiers |
SE527677C2 (sv) * | 2004-02-18 | 2006-05-09 | Peter Sandquist | Förstärkare med låg utgångsimpedans och låg distortion |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3434066A (en) * | 1966-06-16 | 1969-03-18 | Automatic Elect Lab | Low-distortion bias-controlled transistor amplifier |
US4207475A (en) * | 1978-07-31 | 1980-06-10 | Kepco, Inc. | Efficient bipolar regulated power supply |
US4263563A (en) * | 1979-07-11 | 1981-04-21 | National Semiconductor Corporation | Amplifier output stage distortion reduction |
JPS56160112A (en) * | 1980-04-30 | 1981-12-09 | Sony Corp | Biasing circuit of electric power amplifier |
DE3343110C1 (de) * | 1983-11-29 | 1985-05-30 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Transformatorlose Gegentaktendstufe |
US4573021A (en) * | 1984-03-22 | 1986-02-25 | Widlar Robert J | Circuit output stage arrangement |
-
1987
- 1987-09-30 DE DE19873732915 patent/DE3732915A1/de not_active Withdrawn
-
1988
- 1988-08-06 EP EP88112851A patent/EP0309693B1/de not_active Expired - Lifetime
- 1988-08-06 DE DE88112851T patent/DE3885560D1/de not_active Expired - Fee Related
- 1988-08-06 AT AT88112851T patent/ATE97274T1/de active
- 1988-08-06 ES ES198888112851T patent/ES2046258T3/es not_active Expired - Lifetime
- 1988-09-27 JP JP63239903A patent/JP2685102B2/ja not_active Expired - Fee Related
- 1988-09-28 KR KR1019880012531A patent/KR0130903B1/ko not_active IP Right Cessation
-
1996
- 1996-01-25 HK HK14496A patent/HK14496A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE97274T1 (de) | 1993-11-15 |
EP0309693A2 (de) | 1989-04-05 |
EP0309693B1 (de) | 1993-11-10 |
HK14496A (en) | 1996-02-02 |
JPH01109804A (ja) | 1989-04-26 |
EP0309693A3 (en) | 1990-01-24 |
ES2046258T3 (es) | 1994-02-01 |
JP2685102B2 (ja) | 1997-12-03 |
DE3885560D1 (de) | 1993-12-16 |
DE3732915A1 (de) | 1989-04-13 |
KR0130903B1 (ko) | 1998-04-23 |
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