CN102595279B - 一种用于音频系统的抑制爆裂音的三级电源供应顺序电路 - Google Patents
一种用于音频系统的抑制爆裂音的三级电源供应顺序电路 Download PDFInfo
- Publication number
- CN102595279B CN102595279B CN201110095838.XA CN201110095838A CN102595279B CN 102595279 B CN102595279 B CN 102595279B CN 201110095838 A CN201110095838 A CN 201110095838A CN 102595279 B CN102595279 B CN 102595279B
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- China
- Prior art keywords
- voltage
- resistance
- operational amplifier
- electrically connected
- output
- 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.)
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- 230000005764 inhibitory process Effects 0.000 claims description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005236 sound signal Effects 0.000 description 6
- 230000000452 restraining effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Images
Classifications
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- 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
- H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
-
- 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
- H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply
-
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/005,609 US8447046B2 (en) | 2011-01-13 | 2011-01-13 | Circuit with three-stage of power-on sequence used for suppressing the pop noise in audio system |
US13/005,609 | 2011-01-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102595279A CN102595279A (zh) | 2012-07-18 |
CN102595279B true CN102595279B (zh) | 2014-07-02 |
Family
ID=46483407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110095838.XA Expired - Fee Related CN102595279B (zh) | 2011-01-13 | 2011-04-15 | 一种用于音频系统的抑制爆裂音的三级电源供应顺序电路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8447046B2 (zh) |
CN (1) | CN102595279B (zh) |
TW (1) | TWI442696B (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI531153B (zh) * | 2012-03-29 | 2016-04-21 | 微晶片科技公司 | 音訊放大裝置 |
KR102057320B1 (ko) | 2014-02-14 | 2019-12-18 | 삼성전자주식회사 | 팝/클릭 잡음을 감쇄하는 헤드폰 드라이버 및 이를 포함하는 시스템온칩 |
US9854357B1 (en) * | 2016-06-28 | 2017-12-26 | Cirrus Logic, Inc. | Minimizing startup transients in an audio playback path |
IT201700021364A1 (it) | 2017-02-24 | 2018-08-24 | St Microelectronics Srl | Amplificatore operazionale, circuito, apparecchiatura e procedimento corrispondenti |
IT201700021392A1 (it) | 2017-02-24 | 2018-08-24 | St Microelectronics Srl | Circuito di pilotaggio, apparecchiatura ad ultrasuoni e procedimento corrispondenti |
US10730073B2 (en) | 2017-02-24 | 2020-08-04 | Stmicroelectronics S.R.L. | Electronic circuit, corresponding ultrasound apparatus and method |
CN108810735B (zh) * | 2017-04-28 | 2020-03-20 | 华为技术有限公司 | 一种pop音的抑制方法、音频输出电路和终端 |
TWI644578B (zh) * | 2017-12-12 | 2018-12-11 | 絡達科技股份有限公司 | 音頻系統 |
US11451200B2 (en) * | 2020-02-25 | 2022-09-20 | Mediatek Inc. | Low pop-click noise class-D amplifier |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6573787B2 (en) * | 2001-02-01 | 2003-06-03 | Sony United Kingdom Limited | Elimination of noise during power supply switching in an audio amplifier circuit |
CN1457144A (zh) * | 2002-05-10 | 2003-11-19 | 沃福森微电子有限公司 | 音频瞬变抑制电路和方法 |
US6774684B2 (en) * | 2001-01-17 | 2004-08-10 | Cirrus Logic, Inc. | Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
EP1689075A1 (en) * | 2005-02-03 | 2006-08-09 | Texas Instruments Inc. | Multi-stage amplifier to reduce pop noise |
US7164312B1 (en) * | 2004-08-02 | 2007-01-16 | National Semiconductor Corporation | Apparatus and method for pop-and-click suppression with fast turn-on time |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5642076A (en) | 1995-01-31 | 1997-06-24 | National Semiconductor Corporation | No turn-on pop noise amplifier |
US5648742A (en) * | 1995-10-23 | 1997-07-15 | National Semiconductor Corporation | Amplifier circuit with reduced turn-on and turn-off transients |
US6040740A (en) | 1997-04-09 | 2000-03-21 | Lsi Logic Corporation | Audio transient suppression device |
US6157726A (en) | 1997-12-05 | 2000-12-05 | Motorola, Inc. | Circuit and method of preventing audio pop in an electronic audio device |
US6775387B1 (en) | 1999-11-30 | 2004-08-10 | Texas Instruments Incorporated | Three-step ramped reference to reduce popping noises on audio circuit |
JP4614704B2 (ja) * | 2003-07-23 | 2011-01-19 | ルネサスエレクトロニクス株式会社 | 差動増幅器及びデータドライバと表示装置 |
US7084704B2 (en) | 2003-07-31 | 2006-08-01 | Skyworks Solutions, Inc. | Variable gain amplifier system |
US6998911B2 (en) * | 2003-12-18 | 2006-02-14 | International Rectifier Corporation | Gate control circuit with soft start/stop function |
TWI235543B (en) | 2004-05-17 | 2005-07-01 | Analog And Power Electronics C | Amplifier circuit that prohibits instantaneous turn-on pop and method thereof |
TWI318495B (en) | 2006-06-29 | 2009-12-11 | Realtek Semiconductor Corp | Switching audio power amplifier and method for pop noise suppression |
TWI351023B (en) * | 2008-02-15 | 2011-10-21 | Hon Hai Prec Ind Co Ltd | Pop noise suppression apparatus and audio output system utilizing the same |
US8249274B2 (en) * | 2008-05-19 | 2012-08-21 | Himax Technologies Limited | Audio amplifier with timing circuit to power down bias control and amplifying circuits in sequence |
TWI357717B (en) * | 2008-09-01 | 2012-02-01 | Novatek Microelectronics Corp | Rail-to-rail operational amplifier capable of redu |
US8063699B2 (en) * | 2009-06-19 | 2011-11-22 | Conexant Systems, Inc. | Anti-pop circuit |
-
2011
- 2011-01-13 US US13/005,609 patent/US8447046B2/en not_active Expired - Fee Related
- 2011-03-31 TW TW100111210A patent/TWI442696B/zh not_active IP Right Cessation
- 2011-04-15 CN CN201110095838.XA patent/CN102595279B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6774684B2 (en) * | 2001-01-17 | 2004-08-10 | Cirrus Logic, Inc. | Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
US6573787B2 (en) * | 2001-02-01 | 2003-06-03 | Sony United Kingdom Limited | Elimination of noise during power supply switching in an audio amplifier circuit |
CN1457144A (zh) * | 2002-05-10 | 2003-11-19 | 沃福森微电子有限公司 | 音频瞬变抑制电路和方法 |
US7164312B1 (en) * | 2004-08-02 | 2007-01-16 | National Semiconductor Corporation | Apparatus and method for pop-and-click suppression with fast turn-on time |
EP1689075A1 (en) * | 2005-02-03 | 2006-08-09 | Texas Instruments Inc. | Multi-stage amplifier to reduce pop noise |
Also Published As
Publication number | Publication date |
---|---|
US8447046B2 (en) | 2013-05-21 |
TW201230668A (en) | 2012-07-16 |
US20120183155A1 (en) | 2012-07-19 |
TWI442696B (zh) | 2014-06-21 |
CN102595279A (zh) | 2012-07-18 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151013 Address after: Arizona, USA Patentee after: MICROCHIP TECHNOLOGY Inc. Address before: Cayman Islands Patentee before: British Cayman Islands Business Miley electronic Limited by Share Ltd. Effective date of registration: 20151013 Address after: Cayman Islands Patentee after: British Cayman Islands Business Miley electronic Limited by Share Ltd. Address before: Science Park, Hsinchu, Taiwan, China Road 8, building 4 Patentee before: INTEGRATED SYSTEM SOLUTION CORPORATION |
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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: 20140702 Termination date: 20210415 |