CN1768472B - 数字放大器 - Google Patents
数字放大器 Download PDFInfo
- Publication number
- CN1768472B CN1768472B CN2004800090591A CN200480009059A CN1768472B CN 1768472 B CN1768472 B CN 1768472B CN 2004800090591 A CN2004800090591 A CN 2004800090591A CN 200480009059 A CN200480009059 A CN 200480009059A CN 1768472 B CN1768472 B CN 1768472B
- Authority
- CN
- China
- Prior art keywords
- voltage
- amplifier
- transistor
- suppression circuit
- power
- 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 - Fee Related
Links
- 230000001629 suppression Effects 0.000 claims abstract description 35
- 230000005236 sound signal Effects 0.000 claims abstract description 15
- 230000010349 pulsation Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 16
- 230000014509 gene expression Effects 0.000 description 11
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- 229910052802 copper Inorganic materials 0.000 description 3
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Images
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
- H03F3/20—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
- H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
-
- 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
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3264—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/459—Ripple reduction circuitry being used in an amplifying circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03100922 | 2003-04-07 | ||
EP03100922.8 | 2003-04-07 | ||
PCT/IB2004/050329 WO2004091091A1 (en) | 2003-04-07 | 2004-03-25 | Digital amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1768472A CN1768472A (zh) | 2006-05-03 |
CN1768472B true CN1768472B (zh) | 2011-06-08 |
Family
ID=33155211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004800090591A Expired - Fee Related CN1768472B (zh) | 2003-04-07 | 2004-03-25 | 数字放大器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7907010B2 (zh) |
EP (1) | EP1614215A1 (zh) |
JP (1) | JP2006522541A (zh) |
KR (1) | KR20050119687A (zh) |
CN (1) | CN1768472B (zh) |
TW (1) | TW200503408A (zh) |
WO (1) | WO2004091091A1 (zh) |
Families Citing this family (76)
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JP2007267147A (ja) * | 2006-03-29 | 2007-10-11 | New Japan Radio Co Ltd | 映像回路 |
US7863841B2 (en) * | 2007-06-15 | 2011-01-04 | Paolo Menegoli | Class H drive |
JP2009118447A (ja) * | 2007-10-18 | 2009-05-28 | Onkyo Corp | スイッチングアンプ |
US9425747B2 (en) | 2008-03-03 | 2016-08-23 | Qualcomm Incorporated | System and method of reducing power consumption for audio playback |
US20090274321A1 (en) * | 2008-04-30 | 2009-11-05 | Lear Corporation | Audio amplifier and technique for power efficiency thereof |
US8405456B2 (en) | 2009-03-31 | 2013-03-26 | Quantance, Inc. | High speed power supply system |
US9112452B1 (en) | 2009-07-14 | 2015-08-18 | Rf Micro Devices, Inc. | High-efficiency power supply for a modulated load |
EP2491650A4 (en) * | 2009-10-19 | 2017-10-18 | Meyer Sound Laboratories, Incorporated | Circuit and method for reducing noise in class d amplifiers |
US9099961B2 (en) | 2010-04-19 | 2015-08-04 | Rf Micro Devices, Inc. | Output impedance compensation of a pseudo-envelope follower power management system |
US8519788B2 (en) | 2010-04-19 | 2013-08-27 | Rf Micro Devices, Inc. | Boost charge-pump with fractional ratio and offset loop for supply modulation |
US9431974B2 (en) | 2010-04-19 | 2016-08-30 | Qorvo Us, Inc. | Pseudo-envelope following feedback delay compensation |
US8633766B2 (en) * | 2010-04-19 | 2014-01-21 | Rf Micro Devices, Inc. | Pseudo-envelope follower power management system with high frequency ripple current compensation |
WO2011133542A1 (en) | 2010-04-19 | 2011-10-27 | Rf Micro Devices, Inc. | Pseudo-envelope following power management system |
US8981848B2 (en) | 2010-04-19 | 2015-03-17 | Rf Micro Devices, Inc. | Programmable delay circuitry |
US8866549B2 (en) | 2010-06-01 | 2014-10-21 | Rf Micro Devices, Inc. | Method of power amplifier calibration |
WO2012027039A1 (en) | 2010-08-25 | 2012-03-01 | Rf Micro Devices, Inc. | Multi-mode/multi-band power management system |
US9954436B2 (en) | 2010-09-29 | 2018-04-24 | Qorvo Us, Inc. | Single μC-buckboost converter with multiple regulated supply outputs |
US9075673B2 (en) | 2010-11-16 | 2015-07-07 | Rf Micro Devices, Inc. | Digital fast dB to gain multiplier for envelope tracking systems |
US8717211B2 (en) | 2010-11-30 | 2014-05-06 | Qualcomm Incorporated | Adaptive gain adjustment system |
US8588713B2 (en) | 2011-01-10 | 2013-11-19 | Rf Micro Devices, Inc. | Power management system for multi-carriers transmitter |
US8611402B2 (en) | 2011-02-02 | 2013-12-17 | Rf Micro Devices, Inc. | Fast envelope system calibration |
US8624760B2 (en) | 2011-02-07 | 2014-01-07 | Rf Micro Devices, Inc. | Apparatuses and methods for rate conversion and fractional delay calculation using a coefficient look up table |
EP2673880B1 (en) | 2011-02-07 | 2017-09-06 | Qorvo US, Inc. | Group delay calibration method for power amplifier envelope tracking |
US9247496B2 (en) | 2011-05-05 | 2016-01-26 | Rf Micro Devices, Inc. | Power loop control based envelope tracking |
US9246460B2 (en) | 2011-05-05 | 2016-01-26 | Rf Micro Devices, Inc. | Power management architecture for modulated and constant supply operation |
US9379667B2 (en) | 2011-05-05 | 2016-06-28 | Rf Micro Devices, Inc. | Multiple power supply input parallel amplifier based envelope tracking |
EP2715945B1 (en) | 2011-05-31 | 2017-02-01 | Qorvo US, Inc. | Rugged iq receiver based rf gain measurements |
US9019011B2 (en) | 2011-06-01 | 2015-04-28 | Rf Micro Devices, Inc. | Method of power amplifier calibration for an envelope tracking system |
US8760228B2 (en) | 2011-06-24 | 2014-06-24 | Rf Micro Devices, Inc. | Differential power management and power amplifier architecture |
JP5908224B2 (ja) * | 2011-07-05 | 2016-04-26 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | Hブリッジ駆動回路 |
US8952710B2 (en) | 2011-07-15 | 2015-02-10 | Rf Micro Devices, Inc. | Pulsed behavior modeling with steady state average conditions |
US8792840B2 (en) | 2011-07-15 | 2014-07-29 | Rf Micro Devices, Inc. | Modified switching ripple for envelope tracking system |
US8626091B2 (en) | 2011-07-15 | 2014-01-07 | Rf Micro Devices, Inc. | Envelope tracking with variable compression |
US9263996B2 (en) | 2011-07-20 | 2016-02-16 | Rf Micro Devices, Inc. | Quasi iso-gain supply voltage function for envelope tracking systems |
US8624576B2 (en) | 2011-08-17 | 2014-01-07 | Rf Micro Devices, Inc. | Charge-pump system for providing independent voltages |
US8942652B2 (en) | 2011-09-02 | 2015-01-27 | Rf Micro Devices, Inc. | Split VCC and common VCC power management architecture for envelope tracking |
US8957728B2 (en) | 2011-10-06 | 2015-02-17 | Rf Micro Devices, Inc. | Combined filter and transconductance amplifier |
US9024688B2 (en) | 2011-10-26 | 2015-05-05 | Rf Micro Devices, Inc. | Dual parallel amplifier based DC-DC converter |
US8878606B2 (en) | 2011-10-26 | 2014-11-04 | Rf Micro Devices, Inc. | Inductance based parallel amplifier phase compensation |
CN103988406B (zh) | 2011-10-26 | 2017-03-01 | Qorvo美国公司 | 射频(rf)开关转换器以及使用rf开关转换器的rf放大装置 |
US9484797B2 (en) | 2011-10-26 | 2016-11-01 | Qorvo Us, Inc. | RF switching converter with ripple correction |
US8975959B2 (en) | 2011-11-30 | 2015-03-10 | Rf Micro Devices, Inc. | Monotonic conversion of RF power amplifier calibration data |
US9250643B2 (en) | 2011-11-30 | 2016-02-02 | Rf Micro Devices, Inc. | Using a switching signal delay to reduce noise from a switching power supply |
US9515621B2 (en) | 2011-11-30 | 2016-12-06 | Qorvo Us, Inc. | Multimode RF amplifier system |
WO2013082384A1 (en) | 2011-12-01 | 2013-06-06 | Rf Micro Devices, Inc. | Rf power converter |
US9041365B2 (en) | 2011-12-01 | 2015-05-26 | Rf Micro Devices, Inc. | Multiple mode RF power converter |
US9280163B2 (en) | 2011-12-01 | 2016-03-08 | Rf Micro Devices, Inc. | Average power tracking controller |
US8947161B2 (en) | 2011-12-01 | 2015-02-03 | Rf Micro Devices, Inc. | Linear amplifier power supply modulation for envelope tracking |
US9256234B2 (en) | 2011-12-01 | 2016-02-09 | Rf Micro Devices, Inc. | Voltage offset loop for a switching controller |
US9494962B2 (en) | 2011-12-02 | 2016-11-15 | Rf Micro Devices, Inc. | Phase reconfigurable switching power supply |
US9813036B2 (en) | 2011-12-16 | 2017-11-07 | Qorvo Us, Inc. | Dynamic loadline power amplifier with baseband linearization |
US9298198B2 (en) | 2011-12-28 | 2016-03-29 | Rf Micro Devices, Inc. | Noise reduction for envelope tracking |
US8890502B2 (en) | 2012-02-17 | 2014-11-18 | Quantance, Inc. | Low-noise, high bandwidth quasi-resonant mode switching power supply |
US8952753B2 (en) | 2012-02-17 | 2015-02-10 | Quantance, Inc. | Dynamic power supply employing a linear driver and a switching regulator |
DE102012104488A1 (de) * | 2012-05-24 | 2013-11-28 | Hochschule für angewandte Wissenschaften München | Geschalteter Verstärker für variable Versorgungsspannung |
US8981839B2 (en) | 2012-06-11 | 2015-03-17 | Rf Micro Devices, Inc. | Power source multiplexer |
US9020451B2 (en) | 2012-07-26 | 2015-04-28 | Rf Micro Devices, Inc. | Programmable RF notch filter for envelope tracking |
US9225231B2 (en) | 2012-09-14 | 2015-12-29 | Rf Micro Devices, Inc. | Open loop ripple cancellation circuit in a DC-DC converter |
US9197256B2 (en) | 2012-10-08 | 2015-11-24 | Rf Micro Devices, Inc. | Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal |
WO2014062902A1 (en) | 2012-10-18 | 2014-04-24 | Rf Micro Devices, Inc | Transitioning from envelope tracking to average power tracking |
US9627975B2 (en) | 2012-11-16 | 2017-04-18 | Qorvo Us, Inc. | Modulated power supply system and method with automatic transition between buck and boost modes |
US9300252B2 (en) | 2013-01-24 | 2016-03-29 | Rf Micro Devices, Inc. | Communications based adjustments of a parallel amplifier power supply |
US9178472B2 (en) | 2013-02-08 | 2015-11-03 | Rf Micro Devices, Inc. | Bi-directional power supply signal based linear amplifier |
US9197162B2 (en) | 2013-03-14 | 2015-11-24 | Rf Micro Devices, Inc. | Envelope tracking power supply voltage dynamic range reduction |
WO2014152876A1 (en) | 2013-03-14 | 2014-09-25 | Rf Micro Devices, Inc | Noise conversion gain limited rf power amplifier |
US9479118B2 (en) | 2013-04-16 | 2016-10-25 | Rf Micro Devices, Inc. | Dual instantaneous envelope tracking |
US9374005B2 (en) | 2013-08-13 | 2016-06-21 | Rf Micro Devices, Inc. | Expanded range DC-DC converter |
US9614476B2 (en) | 2014-07-01 | 2017-04-04 | Qorvo Us, Inc. | Group delay calibration of RF envelope tracking |
US9948240B2 (en) | 2015-07-01 | 2018-04-17 | Qorvo Us, Inc. | Dual-output asynchronous power converter circuitry |
US9912297B2 (en) | 2015-07-01 | 2018-03-06 | Qorvo Us, Inc. | Envelope tracking power converter circuitry |
WO2017154051A1 (ja) * | 2016-03-08 | 2017-09-14 | パナソニックIpマネジメント株式会社 | D級増幅器および音声再生装置 |
US9973147B2 (en) | 2016-05-10 | 2018-05-15 | Qorvo Us, Inc. | Envelope tracking power management circuit |
US10476437B2 (en) | 2018-03-15 | 2019-11-12 | Qorvo Us, Inc. | Multimode voltage tracker circuit |
US10498306B1 (en) * | 2018-07-02 | 2019-12-03 | Roku, Inc. | Intelligent power reduction in audio amplifiers |
CN112702681B (zh) * | 2019-10-23 | 2022-04-08 | 北京小米移动软件有限公司 | 立体声音频设备及其电源控制方法、装置、移动终端 |
CN113629983A (zh) * | 2021-07-08 | 2021-11-09 | 尤建兴 | 一种具有高效率稳定输出的电源电路 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1105788A (zh) * | 1993-06-04 | 1995-07-26 | 哈里公司 | 具有状态可变的反馈控制的d类音频扬声器放大器电路 |
CN1136370A (zh) * | 1993-11-30 | 1996-11-20 | 王冠国际公司 | 桥式线性放大器的开关电源 |
EP1086527A2 (en) * | 1998-05-11 | 2001-03-28 | Toccata Technology APS | A method of reducing distortion and noise of square-wave pulses, a circuit for generating minimally distorted pulses and use of method and circuit |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52132660A (en) * | 1976-04-28 | 1977-11-07 | Matsushita Electric Ind Co Ltd | Power amplifier |
US5420536A (en) * | 1993-03-16 | 1995-05-30 | Victoria University Of Technology | Linearized power amplifier |
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 |
DE19731691C1 (de) * | 1997-07-23 | 1998-10-08 | Siemens Ag | Leistungs-Schaltverstärker |
US6138042A (en) * | 1997-12-31 | 2000-10-24 | Motorola, Inc. | Method, device, phone, and base station for providing an efficient tracking power converter for variable signals |
YU49097B (sh) * | 1999-11-23 | 2003-12-31 | dr. Milan Prokin | Polumostni pojačavač sa podizačem napona |
AU2001276206A1 (en) * | 2000-07-12 | 2002-01-21 | Indigo Manufacturing Inc. | Power amplifier with multiple power supplies |
-
2004
- 2004-03-25 JP JP2006506765A patent/JP2006522541A/ja not_active Withdrawn
- 2004-03-25 KR KR1020057019118A patent/KR20050119687A/ko not_active Application Discontinuation
- 2004-03-25 CN CN2004800090591A patent/CN1768472B/zh not_active Expired - Fee Related
- 2004-03-25 US US10/552,060 patent/US7907010B2/en not_active Expired - Fee Related
- 2004-03-25 WO PCT/IB2004/050329 patent/WO2004091091A1/en active Application Filing
- 2004-03-25 EP EP04723290A patent/EP1614215A1/en not_active Withdrawn
- 2004-04-02 TW TW093109258A patent/TW200503408A/zh unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1105788A (zh) * | 1993-06-04 | 1995-07-26 | 哈里公司 | 具有状态可变的反馈控制的d类音频扬声器放大器电路 |
CN1136370A (zh) * | 1993-11-30 | 1996-11-20 | 王冠国际公司 | 桥式线性放大器的开关电源 |
EP1086527A2 (en) * | 1998-05-11 | 2001-03-28 | Toccata Technology APS | A method of reducing distortion and noise of square-wave pulses, a circuit for generating minimally distorted pulses and use of method and circuit |
Also Published As
Publication number | Publication date |
---|---|
EP1614215A1 (en) | 2006-01-11 |
CN1768472A (zh) | 2006-05-03 |
TW200503408A (en) | 2005-01-16 |
US7907010B2 (en) | 2011-03-15 |
KR20050119687A (ko) | 2005-12-21 |
JP2006522541A (ja) | 2006-09-28 |
US20070164814A1 (en) | 2007-07-19 |
WO2004091091A1 (en) | 2004-10-21 |
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Owner name: NXP CO., LTD. Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V. Effective date: 20070810 |
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Owner name: III HOLDINGS 6, LLC Free format text: FORMER OWNER: KONINKL PHILIPS ELECTRONICS NV Effective date: 20150909 |
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Effective date of registration: 20150909 Address after: Delaware Patentee after: III Holdings 6 LLC Address before: Holland Ian Deho Finn Patentee before: NXP B.V. |
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