DE60131755D1 - Digitaler klasse-d-audioverstärker - Google Patents
Digitaler klasse-d-audioverstärkerInfo
- Publication number
- DE60131755D1 DE60131755D1 DE60131755T DE60131755T DE60131755D1 DE 60131755 D1 DE60131755 D1 DE 60131755D1 DE 60131755 T DE60131755 T DE 60131755T DE 60131755 T DE60131755 T DE 60131755T DE 60131755 D1 DE60131755 D1 DE 60131755D1
- Authority
- DE
- Germany
- Prior art keywords
- deviation
- digital
- deviation values
- load
- audiover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/538—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration
- H02M7/53803—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration with automatic control of output voltage or current
-
- 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
- H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
- H03F1/304—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device and using digital means
-
- 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
- H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices
-
- 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
- H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
-
- 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
- H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
-
- 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
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/351—Pulse width modulation being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/78—A comparator being used in a controlling circuit of an amplifier
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/638,465 US6498531B1 (en) | 2000-08-14 | 2000-08-14 | Digital class-D audio amplifier |
US638465 | 2000-08-14 | ||
PCT/US2001/024502 WO2002015393A2 (en) | 2000-08-14 | 2001-08-03 | Digital class-d audio amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60131755D1 true DE60131755D1 (de) | 2008-01-17 |
DE60131755T2 DE60131755T2 (de) | 2008-11-13 |
Family
ID=24560146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60131755T Expired - Lifetime DE60131755T2 (de) | 2000-08-14 | 2001-08-03 | Digitaler klasse-d-audioverstärker |
Country Status (7)
Country | Link |
---|---|
US (1) | US6498531B1 (de) |
EP (1) | EP1310041B1 (de) |
JP (2) | JP4841800B2 (de) |
KR (1) | KR100847075B1 (de) |
AT (1) | ATE380409T1 (de) |
DE (1) | DE60131755T2 (de) |
WO (1) | WO2002015393A2 (de) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6819912B2 (en) * | 2001-11-05 | 2004-11-16 | Freescale Semiconductor, Inc. | Variable frequency switching amplifier and method therefor |
US7146015B2 (en) * | 2001-12-12 | 2006-12-05 | Motorola Inc. | Frequency threshold audio activity detector |
JP4620043B2 (ja) * | 2003-03-21 | 2011-01-26 | ディー2オーディオ コーポレイション | 音響増幅器回路の保護システム及び方法 |
US7706545B2 (en) * | 2003-03-21 | 2010-04-27 | D2Audio Corporation | Systems and methods for protection of audio amplifier circuits |
US7590251B2 (en) * | 2003-03-21 | 2009-09-15 | D2Audio Corporation | Clip detection in PWM amplifier |
US7929718B1 (en) | 2003-05-12 | 2011-04-19 | D2Audio Corporation | Systems and methods for switching and mixing signals in a multi-channel amplifier |
US7515072B2 (en) | 2003-09-25 | 2009-04-07 | International Rectifier Corporation | Method and apparatus for converting PCM to PWM |
KR100609266B1 (ko) * | 2003-11-03 | 2006-08-04 | 삼성전자주식회사 | 폴트 감지 방법 및 이를 수행하기 위한 회로, 폴트에 따른파워앰프 회로 보호 방법 및 폴트를 감지하는 파워 앰프 |
KR101060359B1 (ko) * | 2004-01-07 | 2011-08-29 | 알텍 랜싱, 에이 디비젼 오브 플랜트로닉스 인코포레이티드 | 펄스 폭 변조 증폭기 및 자동 이득 제어용 전원신호 제거장치와 방법 |
WO2005109631A1 (en) * | 2004-05-10 | 2005-11-17 | Koninklijke Philips Electronics N.V. | Overcurrent limiting method and device |
US7286010B2 (en) * | 2006-01-26 | 2007-10-23 | D2Audio Corporation | Systems and methods for over-current protection |
CN101379698B (zh) * | 2006-02-07 | 2012-04-18 | D2音频有限公司 | 用于提高数字放大器中的反馈和/或前馈子系统的稳定性的系统和方法 |
US7957489B2 (en) * | 2006-02-17 | 2011-06-07 | Canon Kabushiki Kaisha | Digital amplifier and television receiving apparatus |
US7400191B2 (en) | 2006-04-07 | 2008-07-15 | Manuel De Jesus Rodriguez | Switching power amplifier |
FR2905774A1 (fr) * | 2006-09-08 | 2008-03-14 | Shaktiware Soc Par Actions Sim | Generateur de tension programmable |
US7576604B2 (en) * | 2006-12-15 | 2009-08-18 | Bin Xu | All-digital class-D audio amplifier |
US7391346B1 (en) | 2007-02-05 | 2008-06-24 | Sigmatel, Inc. | Switching amplifier system and method |
US7705672B1 (en) | 2007-02-12 | 2010-04-27 | Manuel De Jesus Rodriguez | Buck converters as power amplifier |
KR100855685B1 (ko) * | 2007-04-02 | 2008-09-03 | 주식회사 디엠비테크놀로지 | 다이렉트 디지털 d급 증폭기를 이용한 오디오 시스템 |
US8081028B2 (en) * | 2007-12-31 | 2011-12-20 | Intersil Americas Inc. | Systems and methods for improved over-current clipping |
EP2096753B1 (de) * | 2008-02-29 | 2011-11-30 | STMicroelectronics (Grenoble) SAS | Schaltverstärker |
US7859331B2 (en) * | 2008-05-21 | 2010-12-28 | Silicon Laboratories Inc. | Predictive feedback compensation for PWM switching amplifiers |
US20100188136A1 (en) * | 2009-01-27 | 2010-07-29 | Rockford Corporation | Dynamic thermal management system and method |
KR20110036371A (ko) | 2009-10-01 | 2011-04-07 | 삼성전자주식회사 | 오디오 증폭기 |
US8391514B2 (en) | 2010-06-14 | 2013-03-05 | Parametric Sound Corporation | Parametric transducer systems and related methods |
KR101871360B1 (ko) * | 2011-03-09 | 2018-06-26 | 삼성전자주식회사 | 오디오 신호 출력 방법 및 그에 따른 오디오 신호 출력 장치 |
US8421535B2 (en) * | 2011-08-08 | 2013-04-16 | Adamson Systems Engineering Inc. | Method and apparatus for reducing distortion in Class D amplifier |
ITRM20110609A1 (it) | 2011-11-17 | 2013-05-18 | St Ericsson Sa | Digital class-d amplifier and digital signal processing method |
US9036831B2 (en) | 2012-01-10 | 2015-05-19 | Turtle Beach Corporation | Amplification system, carrier tracking systems and related methods for use in parametric sound systems |
US8958580B2 (en) | 2012-04-18 | 2015-02-17 | Turtle Beach Corporation | Parametric transducers and related methods |
US8934650B1 (en) | 2012-07-03 | 2015-01-13 | Turtle Beach Corporation | Low profile parametric transducers and related methods |
US8903104B2 (en) | 2013-04-16 | 2014-12-02 | Turtle Beach Corporation | Video gaming system with ultrasonic speakers |
US8988911B2 (en) | 2013-06-13 | 2015-03-24 | Turtle Beach Corporation | Self-bias emitter circuit |
US9332344B2 (en) | 2013-06-13 | 2016-05-03 | Turtle Beach Corporation | Self-bias emitter circuit |
NL2016605B1 (en) | 2016-04-14 | 2017-11-02 | Axign B V | Digital audio converter and amplifier controller. |
CN108718198B (zh) * | 2018-08-07 | 2023-11-03 | 上海艾为电子技术股份有限公司 | 一种数字模拟转换器 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58157221A (ja) * | 1982-03-13 | 1983-09-19 | Nippon Gakki Seizo Kk | パルス幅変調回路 |
JPS593611U (ja) * | 1982-06-29 | 1984-01-11 | ヤマハ株式会社 | パルス幅変調増幅回路 |
US4683439A (en) * | 1986-01-09 | 1987-07-28 | Honeywell Inc. | Digitally driven switching power amplifier system |
US5406284A (en) | 1992-12-31 | 1995-04-11 | Monolith Technologies Corporation | Methods and apparatus for the quantization and analog conversion of digital signals |
US5610553A (en) * | 1993-03-02 | 1997-03-11 | Kirn; Larry | Switching amplifier with impedance transformation output stage |
JPH06303049A (ja) * | 1993-04-14 | 1994-10-28 | Mitsubishi Electric Corp | Pwm増幅器 |
JPH06303061A (ja) * | 1993-04-16 | 1994-10-28 | Sony Corp | 電子機器の調整装置 |
CA2109755C (en) | 1993-11-23 | 2004-11-02 | John Barry French | Composite bridge amplifier with output overload and thermal protection |
US5559467A (en) | 1995-01-27 | 1996-09-24 | The Regents Of The University Of California | Digital, pulse width modulation audio power amplifier with noise and ripple shaping |
US5617058A (en) | 1995-11-13 | 1997-04-01 | Apogee Technology, Inc. | Digital signal processing for linearization of small input signals to a tri-state power switch |
DE19619208A1 (de) * | 1996-05-11 | 1997-11-13 | Klugbauer Heilmeier Josef | Digitaler Verstärker |
US5973368A (en) | 1996-06-05 | 1999-10-26 | Pearce; Lawrence G. | Monolithic class D amplifier |
JP3514978B2 (ja) * | 1998-07-31 | 2004-04-05 | シャープ株式会社 | ディジタルスイッチングアンプ |
US6127885A (en) * | 1998-08-31 | 2000-10-03 | Cello, Limited | Class D amplifiers including transition zone modulation |
JP2002171140A (ja) * | 2000-12-01 | 2002-06-14 | Mitsubishi Electric Corp | オーディオ信号増幅出力回路 |
-
2000
- 2000-08-14 US US09/638,465 patent/US6498531B1/en not_active Expired - Lifetime
-
2001
- 2001-08-03 AT AT01959517T patent/ATE380409T1/de not_active IP Right Cessation
- 2001-08-03 KR KR1020037002195A patent/KR100847075B1/ko not_active IP Right Cessation
- 2001-08-03 EP EP01959517A patent/EP1310041B1/de not_active Expired - Lifetime
- 2001-08-03 JP JP2002520407A patent/JP4841800B2/ja not_active Expired - Fee Related
- 2001-08-03 DE DE60131755T patent/DE60131755T2/de not_active Expired - Lifetime
- 2001-08-03 WO PCT/US2001/024502 patent/WO2002015393A2/en active IP Right Grant
-
2011
- 2011-04-25 JP JP2011097483A patent/JP5342599B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1310041A2 (de) | 2003-05-14 |
JP2011142697A (ja) | 2011-07-21 |
WO2002015393A2 (en) | 2002-02-21 |
DE60131755T2 (de) | 2008-11-13 |
KR20030031154A (ko) | 2003-04-18 |
KR100847075B1 (ko) | 2008-07-18 |
ATE380409T1 (de) | 2007-12-15 |
JP2004507140A (ja) | 2004-03-04 |
JP5342599B2 (ja) | 2013-11-13 |
US6498531B1 (en) | 2002-12-24 |
EP1310041B1 (de) | 2007-12-05 |
JP4841800B2 (ja) | 2011-12-21 |
WO2002015393A3 (en) | 2002-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |