KR880005741A - 증폭기 - Google Patents
증폭기 Download PDFInfo
- Publication number
- KR880005741A KR880005741A KR1019870011492A KR870011492A KR880005741A KR 880005741 A KR880005741 A KR 880005741A KR 1019870011492 A KR1019870011492 A KR 1019870011492A KR 870011492 A KR870011492 A KR 870011492A KR 880005741 A KR880005741 A KR 880005741A
- Authority
- KR
- South Korea
- Prior art keywords
- amplifier
- amplifier circuit
- common
- load
- impedance
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/213—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Amplifiers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 한 실시예를 도시한 회로도.
제3도는 본 발명의 다른 실시예를 도시한 회로도.
Claims (1)
- 입력 신호를 증폭하는 제1증폭 회로, 및 상기 제1증폭 회로와 입력 직류 바이어스를 공통으로 하고, 부하 임피던스에 대해서 낮은 출력 임피던스를 갖는 제2층폭회로를 갖추고 있고, 상기 제1 및 제2증폭 회로의 출력 사이에 상기 부하가 직접 접속되도록 한 것읕 특징으로 하는 증폭기.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61247933A JP2680569B2 (ja) | 1986-10-17 | 1986-10-17 | 増幅器 |
JP61-247933 | 1986-10-17 | ||
JP247933 | 1986-10-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880005741A true KR880005741A (ko) | 1988-12-23 |
KR950003996B1 KR950003996B1 (ko) | 1995-04-21 |
Family
ID=17170713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870011492A KR950003996B1 (ko) | 1986-10-17 | 1987-10-16 | 증폭기 |
Country Status (3)
Country | Link |
---|---|
US (1) | US4801889A (ko) |
JP (1) | JP2680569B2 (ko) |
KR (1) | KR950003996B1 (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2516706B2 (ja) * | 1990-11-24 | 1996-07-24 | ローム株式会社 | アンプ |
US5300893A (en) * | 1992-03-16 | 1994-04-05 | Zero Impedance Systems, Inc. | Amplifier |
JP2003047086A (ja) * | 2001-07-31 | 2003-02-14 | Yamaha Corp | ヘッドフォンアンプ |
US7061327B2 (en) * | 2002-01-24 | 2006-06-13 | Maxim Integrated Products, Inc. | Single supply headphone driver/charge pump combination |
GB2387979B (en) * | 2002-04-23 | 2005-05-18 | Nec Technologies | A connector interface |
US8081785B2 (en) * | 2006-03-21 | 2011-12-20 | Fairchild Semiconductor Corporation | High efficiency converter providing switching amplifier bias |
US10778089B2 (en) * | 2017-04-07 | 2020-09-15 | Texas Instruments Incorporated | Cascaded active electro-magnetic interference filter |
US11601045B2 (en) | 2019-04-01 | 2023-03-07 | Texas Instruments Incorporated | Active electromagnetic interference filter with damping network |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49126244A (ko) * | 1973-04-04 | 1974-12-03 | ||
JPS5374822A (en) * | 1976-12-16 | 1978-07-03 | Nippon Telegr & Teleph Corp <Ntt> | Amplifier circuit |
US4254380A (en) * | 1979-07-02 | 1981-03-03 | Motorola, Inc. | Bridge amplifier |
JPS568911A (en) * | 1979-07-05 | 1981-01-29 | Toko Inc | Btl amplifier |
-
1986
- 1986-10-17 JP JP61247933A patent/JP2680569B2/ja not_active Expired - Lifetime
-
1987
- 1987-10-13 US US07/108,104 patent/US4801889A/en not_active Expired - Lifetime
- 1987-10-16 KR KR1019870011492A patent/KR950003996B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US4801889A (en) | 1989-01-31 |
JP2680569B2 (ja) | 1997-11-19 |
JPS63219214A (ja) | 1988-09-12 |
KR950003996B1 (ko) | 1995-04-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
AMND | Amendment | ||
E902 | Notification of reason for refusal | ||
AMND | Amendment | ||
E601 | Decision to refuse application | ||
J2X1 | Appeal (before the patent court) |
Free format text: APPEAL AGAINST DECISION TO DECLINE REFUSAL |
|
G160 | Decision to publish patent application | ||
B701 | Decision to grant | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20090410 Year of fee payment: 15 |
|
EXPY | Expiration of term |