CN103686509A - 低静态电流头戴式耳机驱动器 - Google Patents
低静态电流头戴式耳机驱动器 Download PDFInfo
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- CN103686509A CN103686509A CN201310404663.5A CN201310404663A CN103686509A CN 103686509 A CN103686509 A CN 103686509A CN 201310404663 A CN201310404663 A CN 201310404663A CN 103686509 A CN103686509 A CN 103686509A
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- 238000000034 method Methods 0.000 claims description 33
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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
- H03F3/20—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
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- 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
- H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
-
- 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
- H03F1/0277—Selecting one or more amplifiers from a plurality of 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
- H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/405—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising more than three power stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261698384P | 2012-09-07 | 2012-09-07 | |
US61/698,384 | 2012-09-07 | ||
US13/711,367 US9287835B2 (en) | 2012-09-07 | 2012-12-11 | Low-quiescent current headset driver |
US13/711,367 | 2012-12-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103686509A true CN103686509A (zh) | 2014-03-26 |
CN103686509B CN103686509B (zh) | 2017-01-18 |
Family
ID=49035242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310404663.5A Expired - Fee Related CN103686509B (zh) | 2012-09-07 | 2013-09-06 | 低静态电流头戴式耳机驱动器及驱动方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9287835B2 (zh) |
EP (2) | EP2863540B8 (zh) |
CN (1) | CN103686509B (zh) |
TW (1) | TWI543640B (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104683922A (zh) * | 2015-03-04 | 2015-06-03 | 青岛歌尔声学科技有限公司 | 耳机地环路噪声抑制系统和方法 |
CN105450024A (zh) * | 2014-09-19 | 2016-03-30 | 英特希尔美国公司 | 多级放大器 |
CN105792073A (zh) * | 2016-03-30 | 2016-07-20 | 努比亚技术有限公司 | 外置音效装置和音频处理方法 |
CN113271072A (zh) * | 2020-02-14 | 2021-08-17 | 株式会社东芝 | 放大电路以及电压校正电路 |
CN117439552A (zh) * | 2016-09-27 | 2024-01-23 | 思睿逻辑国际半导体有限公司 | 具有可配置的最终输出级的放大器 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9912295B1 (en) * | 2015-09-10 | 2018-03-06 | Marvell International Ltd. | Power-efficient programmable broadband high-pass preamplifier systems |
US10187137B2 (en) * | 2016-04-06 | 2019-01-22 | Qualcomm Incorporated | High power user equipment (HPUE) using coherently combined power amplifiers |
TWI645662B (zh) * | 2017-07-07 | 2018-12-21 | 儀辰企業股份有限公司 | Driving circuit of battery type electronically controlled permanent magnet hanging plate |
KR102392661B1 (ko) | 2017-07-18 | 2022-04-29 | 삼성전자주식회사 | 비휘발성 메모리 장치의 전압 생성기, 비휘발성 메모리 장치 및 비휘발성 메모리 장치의 동작 방법 |
US10432175B2 (en) * | 2018-01-10 | 2019-10-01 | Texas Instruments Incorporated | Low quiescent current load switch |
US11022629B2 (en) | 2019-07-29 | 2021-06-01 | Analog Devices, Inc. | Low-glitch range change techniques |
TWI814206B (zh) * | 2022-01-12 | 2023-09-01 | 台達電子工業股份有限公司 | 三相功率轉換器之輸出電流的箝位控制方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050237109A1 (en) * | 2004-04-26 | 2005-10-27 | Laletin William H | Servo balancing among driver devices |
US20070176677A1 (en) * | 2006-01-18 | 2007-08-02 | Triquint Semiconductor, Inc. | Switched distributed power amplifier |
US20100009725A1 (en) * | 2008-07-10 | 2010-01-14 | Raja Banerjea | Systems and Methods for Reducing Power Consumption in Wireless Devices |
CN101741322A (zh) * | 2008-11-25 | 2010-06-16 | 三星电机株式会社 | 具有离散功率控制的功率放大器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6255909B1 (en) | 2000-11-02 | 2001-07-03 | Texas Instruments Incorporated | Ultra low voltage CMOS class AB power amplifier with parasitic capacitance internal compensation |
US7304538B2 (en) | 2004-06-21 | 2007-12-04 | Broadcom Corporation | Accurate quiescent current control scheme in floating controlled class AB amplifier |
KR100821197B1 (ko) * | 2005-10-17 | 2008-04-11 | 한국전자통신연구원 | 고효율 혼합모드 전력 증폭기 |
WO2008007312A1 (en) | 2006-07-10 | 2008-01-17 | Bobinados De Transformadores S.L. | Power amplifier |
JP2008236683A (ja) * | 2007-03-23 | 2008-10-02 | Mitsubishi Electric Corp | 電力増幅回路 |
US8416969B2 (en) | 2007-11-15 | 2013-04-09 | Freescale Semiconductor, Inc. | Amplifier circuit |
DE112009003584T5 (de) | 2008-11-21 | 2012-05-24 | L & L Engineering Llc | VERFAHREN UND SYSTEME FüR EINEN DIGITALEN PULSBREITENMODULATOR |
JP5527047B2 (ja) * | 2010-06-29 | 2014-06-18 | 富士通株式会社 | 増幅装置 |
-
2012
- 2012-12-11 US US13/711,367 patent/US9287835B2/en active Active
-
2013
- 2013-08-14 EP EP14004197.1A patent/EP2863540B8/en active Active
- 2013-08-14 EP EP13004056.1A patent/EP2706661B1/en active Active
- 2013-08-28 TW TW102130786A patent/TWI543640B/zh not_active IP Right Cessation
- 2013-09-06 CN CN201310404663.5A patent/CN103686509B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050237109A1 (en) * | 2004-04-26 | 2005-10-27 | Laletin William H | Servo balancing among driver devices |
US20070176677A1 (en) * | 2006-01-18 | 2007-08-02 | Triquint Semiconductor, Inc. | Switched distributed power amplifier |
US20100009725A1 (en) * | 2008-07-10 | 2010-01-14 | Raja Banerjea | Systems and Methods for Reducing Power Consumption in Wireless Devices |
CN101741322A (zh) * | 2008-11-25 | 2010-06-16 | 三星电机株式会社 | 具有离散功率控制的功率放大器 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105450024A (zh) * | 2014-09-19 | 2016-03-30 | 英特希尔美国公司 | 多级放大器 |
US10498214B2 (en) | 2014-09-19 | 2019-12-03 | Renesas Electronics America Inc. | Multi-stage amplifier |
CN105450024B (zh) * | 2014-09-19 | 2021-01-05 | 英特希尔美国公司 | 多级放大器 |
CN104683922A (zh) * | 2015-03-04 | 2015-06-03 | 青岛歌尔声学科技有限公司 | 耳机地环路噪声抑制系统和方法 |
CN105792073A (zh) * | 2016-03-30 | 2016-07-20 | 努比亚技术有限公司 | 外置音效装置和音频处理方法 |
CN105792073B (zh) * | 2016-03-30 | 2019-03-12 | 努比亚技术有限公司 | 外置音效装置和音频处理方法 |
CN117439552A (zh) * | 2016-09-27 | 2024-01-23 | 思睿逻辑国际半导体有限公司 | 具有可配置的最终输出级的放大器 |
CN117439552B (zh) * | 2016-09-27 | 2024-06-21 | 思睿逻辑国际半导体有限公司 | 具有可配置的最终输出级的放大器 |
CN113271072A (zh) * | 2020-02-14 | 2021-08-17 | 株式会社东芝 | 放大电路以及电压校正电路 |
CN113271072B (zh) * | 2020-02-14 | 2024-06-11 | 株式会社东芝 | 放大电路以及电压校正电路 |
Also Published As
Publication number | Publication date |
---|---|
US20140070889A1 (en) | 2014-03-13 |
US9287835B2 (en) | 2016-03-15 |
EP2863540B1 (en) | 2018-11-21 |
EP2706661B1 (en) | 2019-01-02 |
EP2706661A3 (en) | 2014-04-30 |
EP2863540A1 (en) | 2015-04-22 |
TWI543640B (zh) | 2016-07-21 |
EP2706661A2 (en) | 2014-03-12 |
CN103686509B (zh) | 2017-01-18 |
EP2863540B8 (en) | 2019-01-23 |
TW201419884A (zh) | 2014-05-16 |
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Effective date of registration: 20170302 Address after: Singapore Singapore Patentee after: Avago Technologies Fiber IP Singapore Pte. Ltd. Address before: American California Patentee before: Zyray Wireless Inc. |
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