KR100743379B1 - 전압 레벨 변환 회로 - Google Patents
전압 레벨 변환 회로 Download PDFInfo
- Publication number
- KR100743379B1 KR100743379B1 KR1020027008796A KR20027008796A KR100743379B1 KR 100743379 B1 KR100743379 B1 KR 100743379B1 KR 1020027008796 A KR1020027008796 A KR 1020027008796A KR 20027008796 A KR20027008796 A KR 20027008796A KR 100743379 B1 KR100743379 B1 KR 100743379B1
- Authority
- KR
- South Korea
- Prior art keywords
- power supply
- polarity
- operational amplifier
- voltage
- integrated circuit
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45526—Indexing scheme relating to differential amplifiers the FBC comprising a resistor-capacitor combination and being coupled between the LC and the IC
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (7)
- 오디오 증폭기 시스템에 있어서,연산 증폭기;상기 연산 증폭기의 출력에 연결된 라우드스피커;상기 연산 증폭기의 신호 입력을 신호원에 접속하는 수단; 및상기 연산 증폭기를 센터 탭된 접지(center tapped ground)를 갖는 스플리트 레벨 전원으로 동작하도록 동작시키는 전압 레벨 변환기를 포함하고,상기 전압 레벨 변환기는,상기 연산 증폭기의 제 1 극성 전원 단자를 상기 스플리트 레벨 전원의 제 1 극성에 접속하는 제 1 접압 레벨 변환 수단; 및상기 연산 증폭기의 제 2 극성 전원 단자를 상기 스플리트 레벨 전원의 제 2 극성에 접속하는 제 2 전압 레벨 변환 수단을 포함하는, 오디오 증폭기 시스템.
- 제 1 항에 있어서,상기 연산 증폭기의 신호 입력은 상기 연산 증폭기와 직렬로 접속되는 어떠한 DC 분리 캐패시터들 없이 상기 신호원에 연결되고, 상기 연산 증폭기의 출력은 상기 연산 증폭기와 직렬로 접속되는 어떠한 DC 분리 캐패시터들 없이 상기 라우드스피커에 연결되는, 오디오 증폭기 시스템.
- 제 2 항에 있어서,상기 라우드스피커는 접지에 접속된 하나의 단자를 갖는 이어폰인, 오디오 증폭기 시스템.
- 제 1 항에 있어서,상기 연산 증폭기는 공통 기판을 갖는 동일 집적 회로 칩 상에 복수의 연산 증폭기들을 포함하고, 상기 복수의 연산 증폭기들 모두는 또한 전압 레벨 변환되고, 상기 기판은 상기 복수의 연산 증폭기들 각각에 대해 동일한 양으로 바이어스되는, 오디오 증폭기 시스템.
- 제 1 항에 있어서,센터 탭된 접지를 갖는 상기 스플리트 레벨 전원은 또한 다른 기능들을 수행하는 다른 회로들에도 전력을 제공하는, 오디오 증폭기 시스템.
- 제 5 항에 있어서,상기 라우드스피커는 이어폰이고 다른 기능들을 수행하는 상기 다른 회로들은 DVD 플레이어인, 오디오 증폭기 시스템.
- 제 1 항에 있어서,상기 연산 증폭기는 상기 센터 탭된 접지에 접속되는 AC 기준을 갖는, 오디오 증폭기 시스템.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17469500P | 2000-01-06 | 2000-01-06 | |
US60/174,695 | 2000-01-06 | ||
US09/661,506 | 2000-09-13 | ||
US09/661,506 US6762641B1 (en) | 2000-01-06 | 2000-09-13 | Voltage level translation circuits |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020064988A KR20020064988A (ko) | 2002-08-10 |
KR100743379B1 true KR100743379B1 (ko) | 2007-07-30 |
Family
ID=26870471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020027008796A KR100743379B1 (ko) | 2000-01-06 | 2001-01-04 | 전압 레벨 변환 회로 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6762641B1 (ko) |
EP (1) | EP1245079B1 (ko) |
JP (1) | JP2004533128A (ko) |
KR (1) | KR100743379B1 (ko) |
CN (1) | CN100350740C (ko) |
AU (1) | AU2627801A (ko) |
DE (1) | DE60120910T2 (ko) |
MX (1) | MXPA02006713A (ko) |
WO (1) | WO2001050595A1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100645770B1 (ko) | 2005-08-01 | 2006-11-14 | 주식회사 팬택 | 자동전압조절 기능을 지원하는 레벨 변환장치 |
TWI505634B (zh) * | 2013-08-09 | 2015-10-21 | Univ Nat Sun Yat Sen | 電子電路 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5199079A (en) | 1991-05-21 | 1993-03-30 | Thomson Consumer Electronics, Inc. | Supply voltage responsive audible transient (POP) suppression arrangement |
US5436593A (en) | 1992-05-08 | 1995-07-25 | Fiori, Jr.; David | Signal conditioning apparatus |
US5909146A (en) | 1996-08-29 | 1999-06-01 | Fujitsu Limited | Operational amplifier having rail to rail input/output ability |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS536830B2 (ko) * | 1971-12-20 | 1978-03-11 | ||
US3866063A (en) * | 1973-10-23 | 1975-02-11 | Fairchild Camera Instr Co | Improved rectifying circuit |
US3919655A (en) * | 1973-12-26 | 1975-11-11 | Electronics Research Group Inc | High power operational amplifier |
US4189680A (en) * | 1977-12-28 | 1980-02-19 | Phillips Petroleum Co. | Isolated signal conditioner |
US4194165A (en) * | 1978-06-28 | 1980-03-18 | Skulski Peter J | Miniature guitar amplifier |
DE2947663A1 (de) | 1979-11-27 | 1981-07-23 | Baur Elektronik GmbH, 4005 Meerbusch | Verstaerker mit auf o v bezogenem gleichspannungseingang und auf o v bezogenem gleichstromausgang |
US4321554A (en) * | 1980-01-14 | 1982-03-23 | Qsc Audio Products, Inc. | Time-delayed, variable output current limiting means for power amplifiers |
JPS61112409A (ja) * | 1984-11-07 | 1986-05-30 | Toshiba Corp | 電力増幅器 |
JPH0758872B2 (ja) * | 1986-03-31 | 1995-06-21 | 株式会社東芝 | 電力増幅回路 |
US4973916A (en) * | 1987-12-11 | 1990-11-27 | Mcbaik Electronics, Ltd. | Operational amplifier driven power amplifier |
US5029299A (en) * | 1990-05-09 | 1991-07-02 | Altec Lansing Corporation | Power amplifier with current limiting means |
JP3036980B2 (ja) * | 1992-07-31 | 2000-04-24 | 三洋電機株式会社 | 増幅器 |
US5841879A (en) * | 1996-11-21 | 1998-11-24 | Sonics Associates, Inc. | Virtually positioned head mounted surround sound system |
JPH08316739A (ja) * | 1995-05-18 | 1996-11-29 | Matsushita Electric Ind Co Ltd | 電力増幅装置 |
JPH11112256A (ja) * | 1997-09-30 | 1999-04-23 | Sanyo Electric Co Ltd | 増幅回路 |
-
2000
- 2000-09-13 US US09/661,506 patent/US6762641B1/en not_active Expired - Lifetime
-
2001
- 2001-01-04 CN CNB018034985A patent/CN100350740C/zh not_active Expired - Lifetime
- 2001-01-04 WO PCT/US2001/000217 patent/WO2001050595A1/en active IP Right Grant
- 2001-01-04 KR KR1020027008796A patent/KR100743379B1/ko active IP Right Grant
- 2001-01-04 AU AU26278/01A patent/AU2627801A/en not_active Abandoned
- 2001-01-04 JP JP2001550864A patent/JP2004533128A/ja active Pending
- 2001-01-04 EP EP01900863A patent/EP1245079B1/en not_active Expired - Lifetime
- 2001-01-04 DE DE60120910T patent/DE60120910T2/de not_active Expired - Lifetime
- 2001-01-04 MX MXPA02006713A patent/MXPA02006713A/es active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5199079A (en) | 1991-05-21 | 1993-03-30 | Thomson Consumer Electronics, Inc. | Supply voltage responsive audible transient (POP) suppression arrangement |
US5436593A (en) | 1992-05-08 | 1995-07-25 | Fiori, Jr.; David | Signal conditioning apparatus |
US5909146A (en) | 1996-08-29 | 1999-06-01 | Fujitsu Limited | Operational amplifier having rail to rail input/output ability |
Also Published As
Publication number | Publication date |
---|---|
DE60120910D1 (de) | 2006-08-03 |
WO2001050595A1 (en) | 2001-07-12 |
CN1394386A (zh) | 2003-01-29 |
CN100350740C (zh) | 2007-11-21 |
DE60120910T2 (de) | 2007-07-19 |
AU2627801A (en) | 2001-07-16 |
EP1245079A1 (en) | 2002-10-02 |
US6762641B1 (en) | 2004-07-13 |
MXPA02006713A (es) | 2002-09-30 |
JP2004533128A (ja) | 2004-10-28 |
KR20020064988A (ko) | 2002-08-10 |
EP1245079B1 (en) | 2006-06-21 |
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