KR20020056874A - 푸쉬-풀 증폭기 및 pwm 리미터 - Google Patents
푸쉬-풀 증폭기 및 pwm 리미터 Download PDFInfo
- Publication number
- KR20020056874A KR20020056874A KR1020027000955A KR20027000955A KR20020056874A KR 20020056874 A KR20020056874 A KR 20020056874A KR 1020027000955 A KR1020027000955 A KR 1020027000955A KR 20027000955 A KR20027000955 A KR 20027000955A KR 20020056874 A KR20020056874 A KR 20020056874A
- Authority
- KR
- South Korea
- Prior art keywords
- push
- output
- pulse width
- width modulator
- pull amplifier
- 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
- H03F3/217—Class D power amplifiers; Switching amplifiers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Error Detection And Correction (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (4)
- 입력 신호를 수신하는 입력부와 출력 신호를 공급하는 출력부를 갖는 푸쉬-풀 증폭기(a push-pull amplifier)에 있어서,상기 푸쉬-풀 증폭기는 적어도 두 개의 적분기, 비교기, 피드백 소자를 포함하는 펄스폭 변조기와, 상기 펄스폭 변조기의 출력부에 결합된 적어도 두 개의 스위치를 갖는 스위칭 유닛과, 상기 스위칭 유닛의 출력에 결합된 복조 필터를 포함하고,상기 펄스폭 변조기는 복조 깊이를 한정하는 펄스폭 변조기 리미터를 포함하는푸쉬-풀 증폭기
- 제 1 항에 있어서,상기 펄스폭 변조기 리미터는 제 1 입력부에서 비교기 출력 신호를 수신하고 제 2 입력부에서 발진기 신호를 수신하는 두 개의 입력과 상기 푸쉬-풀 증폭기의 출력부에 결합된 출력부를 갖는 로직 회로를 포함하는 푸쉬-풀 증폭기
- 제 1 항에 있어서,상기 푸쉬-풀 증폭기는 D급 증폭기(class D amplifier)인 푸쉬-풀 증폭기
- 제 1 항에서 청구된 바와 같은 푸쉬-풀 증폭기에 사용하기 위한 펄스폭 변조기 리미터.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00201828.1 | 2000-05-25 | ||
EP00201828 | 2000-05-25 | ||
PCT/EP2001/004997 WO2001091284A1 (en) | 2000-05-25 | 2001-05-03 | Pwm limiter |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020056874A true KR20020056874A (ko) | 2002-07-10 |
KR100809241B1 KR100809241B1 (ko) | 2008-02-29 |
Family
ID=8171536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020027000955A KR100809241B1 (ko) | 2000-05-25 | 2001-05-03 | 푸쉬-풀 증폭기 및 pwm 리미터 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6577186B2 (ko) |
EP (1) | EP1293038B1 (ko) |
JP (1) | JP2003534691A (ko) |
KR (1) | KR100809241B1 (ko) |
AT (1) | ATE429070T1 (ko) |
DE (1) | DE60138382D1 (ko) |
WO (1) | WO2001091284A1 (ko) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2812478B1 (fr) * | 2000-07-27 | 2003-01-10 | Rene Lambruschi | Circuit electronique de conversion d'un signal et amplificateur integrant ledit circuit |
JP2002299968A (ja) * | 2001-03-30 | 2002-10-11 | Pioneer Electronic Corp | D級アンプ |
AT411415B (de) * | 2001-12-11 | 2003-12-29 | Bier Guenther Ing | Verfahren und vorrichtung zur erzeugung einer einem eingangs-datenstrom folgenden wechselspannung |
US7038535B2 (en) * | 2003-03-29 | 2006-05-02 | Wai Laing Lee | PWM digital amplifier with high-order loop filter |
US7271650B2 (en) * | 2004-03-26 | 2007-09-18 | Asp Technologies | PWM digital amplifier with high-order loop filter |
US7516114B2 (en) * | 2004-10-22 | 2009-04-07 | International Business Machines Corporation | Visual structuring of multivariable data |
US7218173B2 (en) * | 2005-04-08 | 2007-05-15 | Maxim Integrated Products, Inc. | Minimum on time, dual supply class D amplifiers with ground speaker returns and methods of class D amplification |
JP2008536434A (ja) * | 2005-04-15 | 2008-09-04 | ボビナドス デ トランスフォルマドレス エセ エレ | D級増幅器 |
JP2010504004A (ja) * | 2006-07-07 | 2010-02-04 | エヌエックスピー ビー ヴィ | D級音声増幅器 |
US7518442B1 (en) * | 2006-10-10 | 2009-04-14 | National Semiconductor Corporation | Circuit and method for suppressing switching and supply-related errors in a PWM power stage by instantaneous per-pulse feedback |
US8081022B2 (en) * | 2007-03-14 | 2011-12-20 | Nxp B.V. | Data processing system for clipping correction |
EP2162984B1 (en) * | 2007-06-27 | 2014-05-21 | Nxp B.V. | Pulse width modulation circuit and class-d amplifier comprising the pwm circuit |
JP2011097504A (ja) * | 2009-11-02 | 2011-05-12 | Hitachi Kokusai Electric Inc | 電源回路 |
WO2011052357A1 (en) * | 2009-10-28 | 2011-05-05 | Semiconductor Energy Laboratory Co., Ltd. | Pwm limiter circuit |
EP2562933A1 (en) | 2011-08-25 | 2013-02-27 | Nxp B.V. | Class D amplifier and control method |
EP3281293B1 (en) * | 2015-04-09 | 2019-02-13 | Icepower A/S | Duty cycle clipper |
US11646707B2 (en) * | 2020-05-21 | 2023-05-09 | Novatek Microelectronics Corp. | Analog front end with pulse width modulation current compensation |
US11463052B2 (en) | 2020-11-30 | 2022-10-04 | Stmicroelectronics S.R.L. | PWM driving circuit and method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5389829A (en) * | 1991-09-27 | 1995-02-14 | Exar Corporation | Output limiter for class-D BICMOS hearing aid output amplifier |
US5777512A (en) * | 1996-06-20 | 1998-07-07 | Tripath Technology, Inc. | Method and apparatus for oversampled, noise-shaping, mixed-signal processing |
US5974089A (en) * | 1997-07-22 | 1999-10-26 | Tripath Technology, Inc. | Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor |
JP2001515694A (ja) | 1998-01-22 | 2001-09-18 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Pwm増幅器 |
-
2001
- 2001-05-03 DE DE60138382T patent/DE60138382D1/de not_active Expired - Lifetime
- 2001-05-03 EP EP01940395A patent/EP1293038B1/en not_active Expired - Lifetime
- 2001-05-03 JP JP2001586769A patent/JP2003534691A/ja not_active Withdrawn
- 2001-05-03 KR KR1020027000955A patent/KR100809241B1/ko active IP Right Grant
- 2001-05-03 WO PCT/EP2001/004997 patent/WO2001091284A1/en active Application Filing
- 2001-05-03 AT AT01940395T patent/ATE429070T1/de not_active IP Right Cessation
- 2001-05-24 US US09/864,140 patent/US6577186B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2001091284A1 (en) | 2001-11-29 |
EP1293038A1 (en) | 2003-03-19 |
KR100809241B1 (ko) | 2008-02-29 |
US20020000877A1 (en) | 2002-01-03 |
US6577186B2 (en) | 2003-06-10 |
JP2003534691A (ja) | 2003-11-18 |
ATE429070T1 (de) | 2009-05-15 |
DE60138382D1 (de) | 2009-05-28 |
EP1293038B1 (en) | 2009-04-15 |
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