CN103026618A - 放大装置 - Google Patents
放大装置 Download PDFInfo
- Publication number
- CN103026618A CN103026618A CN2011800357738A CN201180035773A CN103026618A CN 103026618 A CN103026618 A CN 103026618A CN 2011800357738 A CN2011800357738 A CN 2011800357738A CN 201180035773 A CN201180035773 A CN 201180035773A CN 103026618 A CN103026618 A CN 103026618A
- Authority
- CN
- China
- Prior art keywords
- voltage
- signal
- power
- output
- magnitude
- 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.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 claims description 28
- 230000003321 amplification Effects 0.000 claims description 16
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 16
- 230000009466 transformation Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 238000013139 quantization Methods 0.000 abstract description 11
- 230000009471 action Effects 0.000 description 9
- 230000033228 biological regulation Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
- H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
-
- 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
-
- 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
-
- 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
- H03F1/3205—Modifications of amplifiers to reduce non-linear distortion in field-effect transistor amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
- H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
- H03F3/1855—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices with junction-FET 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
- H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/171—A filter circuit coupled to the output of an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010191812 | 2010-08-30 | ||
JP2010-191812 | 2010-08-30 | ||
PCT/JP2011/002675 WO2012029210A1 (ja) | 2010-08-30 | 2011-05-13 | 増幅装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103026618A true CN103026618A (zh) | 2013-04-03 |
CN103026618B CN103026618B (zh) | 2015-07-29 |
Family
ID=45772337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201180035773.8A Expired - Fee Related CN103026618B (zh) | 2010-08-30 | 2011-05-13 | 放大装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9136799B2 (zh) |
EP (1) | EP2613438B1 (zh) |
JP (1) | JP5861076B2 (zh) |
CN (1) | CN103026618B (zh) |
WO (1) | WO2012029210A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112470400A (zh) * | 2018-07-25 | 2021-03-09 | 思睿逻辑国际半导体有限公司 | D类开环放大器的增益控制 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102959858B (zh) * | 2010-06-25 | 2015-09-02 | 松下知识产权经营株式会社 | 放大装置 |
US9258641B2 (en) * | 2012-06-07 | 2016-02-09 | Qbiz, Llc | Method and system of audio capture based on logarithmic conversion |
US9154095B2 (en) * | 2013-03-15 | 2015-10-06 | Bose Corporation | Boost-on-demand amplifier |
US9184705B2 (en) | 2013-03-15 | 2015-11-10 | Bose Corporation | Feedback mechanism for boost-on-demand amplifiers |
CN103607176B (zh) * | 2013-10-21 | 2017-05-24 | 梁秀红 | 音频功放供电电路控制方法及音频功放供电电路及音频功放电路 |
CN104104452B (zh) * | 2014-06-24 | 2016-08-24 | 努比亚技术有限公司 | 基于pwm调制的音频解调方法和解调器 |
CN107179519A (zh) * | 2017-06-09 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | 一种用于数字示波器的通道校准装置及方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1694350A (zh) * | 2004-04-30 | 2005-11-09 | 雅马哈株式会社 | D类放大器 |
CN1722611A (zh) * | 2004-07-14 | 2006-01-18 | 株式会社东芝 | 音频信号处理装置和音频信号处理方法 |
JP2006025029A (ja) * | 2004-07-06 | 2006-01-26 | Sanyo Electric Co Ltd | スピーカ用増幅装置 |
JP2006238256A (ja) * | 2005-02-28 | 2006-09-07 | Pioneer Electronic Corp | 増幅装置 |
JP2007110646A (ja) * | 2005-10-17 | 2007-04-26 | Sharp Corp | 信号再生装置 |
CN101847968A (zh) * | 2009-03-27 | 2010-09-29 | 杭州中科微电子有限公司 | 高阶多路反馈结构的高性能d类音频功率放大器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1161794A1 (en) * | 1999-03-16 | 2001-12-12 | AudioLogic, Incorporated | Power supply compensation for noise shaped, digital amplifiers |
US6765436B1 (en) * | 2002-09-04 | 2004-07-20 | Cirrus Logic, Inc. | Power supply based audio compression for digital audio amplifier |
EP1653604B1 (en) * | 2004-10-28 | 2009-07-01 | CAMCO Produktions- und Vertriebs GmbH | Switching power amplifier and method for amplifying a digital input signal |
US7576606B2 (en) * | 2007-07-25 | 2009-08-18 | D2Audio Corporation | Digital PWM amplifier having a low delay corrector |
US7286009B2 (en) * | 2005-12-30 | 2007-10-23 | D2Audio Corporation | Digital PWM amplifier with simulation-based feedback |
US7362254B2 (en) * | 2006-01-31 | 2008-04-22 | D2Audio Corporation | Systems and methods for minimizing delay in a control path |
US7576604B2 (en) * | 2006-12-15 | 2009-08-18 | Bin Xu | All-digital class-D audio amplifier |
WO2011083758A1 (ja) * | 2010-01-07 | 2011-07-14 | パナソニック株式会社 | 増幅装置 |
-
2011
- 2011-05-13 CN CN201180035773.8A patent/CN103026618B/zh not_active Expired - Fee Related
- 2011-05-13 EP EP11821235.6A patent/EP2613438B1/en not_active Not-in-force
- 2011-05-13 JP JP2012531655A patent/JP5861076B2/ja not_active Expired - Fee Related
- 2011-05-13 US US13/808,420 patent/US9136799B2/en not_active Expired - Fee Related
- 2011-05-13 WO PCT/JP2011/002675 patent/WO2012029210A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1694350A (zh) * | 2004-04-30 | 2005-11-09 | 雅马哈株式会社 | D类放大器 |
JP2006025029A (ja) * | 2004-07-06 | 2006-01-26 | Sanyo Electric Co Ltd | スピーカ用増幅装置 |
CN1722611A (zh) * | 2004-07-14 | 2006-01-18 | 株式会社东芝 | 音频信号处理装置和音频信号处理方法 |
JP2006238256A (ja) * | 2005-02-28 | 2006-09-07 | Pioneer Electronic Corp | 増幅装置 |
JP2007110646A (ja) * | 2005-10-17 | 2007-04-26 | Sharp Corp | 信号再生装置 |
CN101847968A (zh) * | 2009-03-27 | 2010-09-29 | 杭州中科微电子有限公司 | 高阶多路反馈结构的高性能d类音频功率放大器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112470400A (zh) * | 2018-07-25 | 2021-03-09 | 思睿逻辑国际半导体有限公司 | D类开环放大器的增益控制 |
CN112470400B (zh) * | 2018-07-25 | 2021-12-10 | 思睿逻辑国际半导体有限公司 | D类开环放大器的增益控制 |
Also Published As
Publication number | Publication date |
---|---|
EP2613438B1 (en) | 2016-04-06 |
JPWO2012029210A1 (ja) | 2013-10-28 |
CN103026618B (zh) | 2015-07-29 |
US20130108081A1 (en) | 2013-05-02 |
EP2613438A4 (en) | 2015-02-18 |
WO2012029210A1 (ja) | 2012-03-08 |
JP5861076B2 (ja) | 2016-02-16 |
EP2613438A1 (en) | 2013-07-10 |
US9136799B2 (en) | 2015-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103026618B (zh) | 放大装置 | |
CN102959858B (zh) | 放大装置 | |
EP3703254B1 (en) | Audio amplifier system | |
US9019012B2 (en) | Amplifier circuit with offset control | |
EP2507908B1 (en) | Pop-up noise reduction in a device | |
US8212612B2 (en) | Closed-loop class-D amplifier with modulated reference signal and related method | |
CN107623495B (zh) | 低噪声电路 | |
CN211405976U (zh) | 音频放大器和集成电路 | |
KR20210090166A (ko) | 초핑 삼각파 pwm 양자화기 및 제어가능한 아날로그 게인을 갖고 그리고 다중-비이상적 게인에 영향을 미치는 특성에 대해 교정 가능한 양자화기를 구비하는 pwm 변조기 | |
US10938408B2 (en) | Semiconductor device for reading and outputting signal from a sensor | |
JP2010514285A (ja) | 特に増幅のための、低歪み信号変換装置 | |
CN101488730B (zh) | 放大器、音频系统以及输入信号的放大方法 | |
US9130518B2 (en) | Method and apparatus for correcting asymmetry of an input signal of an amplifier | |
JP2004104269A (ja) | 信号切替器及び同信号切替器を備えた可変利得増幅器 | |
US11811370B2 (en) | Common-mode compensation in a multi-level pulse-width modulation system | |
RU36590U1 (ru) | Выходной каскад широкополосного усилителя мощности |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20150810 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150810 Address after: Osaka Patentee after: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co.,Ltd. Address before: Osaka Japan Patentee before: Matsushita Electric Industrial Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20210513 |