CN102224675B - 动态偏置放大器 - Google Patents
动态偏置放大器 Download PDFInfo
- Publication number
- CN102224675B CN102224675B CN200980147165.9A CN200980147165A CN102224675B CN 102224675 B CN102224675 B CN 102224675B CN 200980147165 A CN200980147165 A CN 200980147165A CN 102224675 B CN102224675 B CN 102224675B
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- CN
- China
- Prior art keywords
- bias current
- level
- signal
- amplifier
- current
- 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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Classifications
-
- 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
- H03F1/301—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in MOSFET amplifiers
Abstract
Description
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11764608P | 2008-11-25 | 2008-11-25 | |
US61/117,646 | 2008-11-25 | ||
PCT/EP2009/065699 WO2010060892A1 (en) | 2008-11-25 | 2009-11-24 | Dynamically biased amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102224675A CN102224675A (zh) | 2011-10-19 |
CN102224675B true CN102224675B (zh) | 2014-04-02 |
Family
ID=41697771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200980147165.9A Active CN102224675B (zh) | 2008-11-25 | 2009-11-24 | 动态偏置放大器 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8958576B2 (zh) |
CN (1) | CN102224675B (zh) |
WO (1) | WO2010060892A1 (zh) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8831246B2 (en) * | 2009-12-14 | 2014-09-09 | Invensense, Inc. | MEMS microphone with programmable sensitivity |
US9236837B2 (en) | 2011-08-25 | 2016-01-12 | Infineon Technologies Ag | System and method for low distortion capacitive signal source amplifier |
CN106603056B (zh) | 2011-12-31 | 2020-02-28 | 意法半导体研发(深圳)有限公司 | 具有精确电流导引发生器的模拟信号软开关控制电路 |
JP6302179B2 (ja) * | 2012-07-05 | 2018-03-28 | 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 | マイクアンプ回路 |
US10020008B2 (en) | 2013-05-23 | 2018-07-10 | Knowles Electronics, Llc | Microphone and corresponding digital interface |
EP3000241B1 (en) | 2013-05-23 | 2019-07-17 | Knowles Electronics, LLC | Vad detection microphone and method of operating the same |
US20180317019A1 (en) | 2013-05-23 | 2018-11-01 | Knowles Electronics, Llc | Acoustic activity detecting microphone |
US10028054B2 (en) | 2013-10-21 | 2018-07-17 | Knowles Electronics, Llc | Apparatus and method for frequency detection |
KR101601179B1 (ko) * | 2014-10-20 | 2016-03-08 | 현대자동차 주식회사 | 마이크로폰의 아날로그 신호 처리 회로 |
CN105744452B (zh) * | 2014-12-12 | 2019-04-02 | 瑞声声学科技(深圳)有限公司 | Mems麦克风电路 |
WO2016112113A1 (en) | 2015-01-07 | 2016-07-14 | Knowles Electronics, Llc | Utilizing digital microphones for low power keyword detection and noise suppression |
US10412486B2 (en) * | 2015-07-27 | 2019-09-10 | Tdk Corporation | Electronic circuit for a microphone and microphone |
US9680474B1 (en) * | 2016-03-17 | 2017-06-13 | Xilinx, Inc. | System and method to reduce footprint and improve yield of fabric muxes in programmable logic devices |
CN105744609B (zh) * | 2016-05-09 | 2019-04-12 | Oppo广东移动通信有限公司 | 改善移动终端功耗的方法及装置 |
CN106581895B (zh) * | 2017-01-17 | 2024-01-30 | 澳特翼南京电子科技有限公司 | 一种满足乘用车安全规范的高安全,快速反应灭火检测装置 |
JP6904179B2 (ja) * | 2017-09-06 | 2021-07-14 | ヤマハ株式会社 | 増幅器、音響機器および制御方法 |
US11092988B2 (en) * | 2018-09-25 | 2021-08-17 | Invensense, Inc. | Start-up speed enhancement circuit and method for lower-power regulators |
CN109982205B (zh) * | 2019-04-30 | 2023-11-21 | 先歌国际影音股份有限公司 | 一种小功率功放动态偏置电路 |
CN112953420B (zh) * | 2021-03-22 | 2022-09-09 | 电子科技大学 | 一种输入管处于线性区的动态运算放大器电路 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1062816A (zh) * | 1990-12-17 | 1992-07-15 | 莫托罗拉公司 | 动态偏置放大器 |
CN1515069A (zh) * | 2001-04-04 | 2004-07-21 | �����ɷ� | 功率放大器的偏置调节 |
JP2006262265A (ja) * | 2005-03-18 | 2006-09-28 | Rohm Co Ltd | 演算増幅器およびそれを用いた増幅回路、ならびに電子機器 |
CN1918784A (zh) * | 2004-02-17 | 2007-02-21 | 艾利森电话股份有限公司 | 动态偏置放大器 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3582807A (en) * | 1969-07-28 | 1971-06-01 | Tektronix Inc | Amplifier gain control circuit including diode bridge |
JP2906705B2 (ja) * | 1991-03-19 | 1999-06-21 | 富士通株式会社 | レーザ画像記録装置 |
JPH05145349A (ja) * | 1991-11-19 | 1993-06-11 | Fujitsu Ltd | 電力増幅器 |
US6175279B1 (en) | 1997-12-09 | 2001-01-16 | Qualcomm Incorporated | Amplifier with adjustable bias current |
JP3105489B2 (ja) * | 1998-04-16 | 2000-10-30 | 松下電器産業株式会社 | 増幅器 |
GB2393052A (en) | 2002-09-12 | 2004-03-17 | Motorola Inc | Control of the bias in an amplifier or mixer of a receiver for improved dynamic range, noise performance and efficiency |
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2009
- 2009-11-24 WO PCT/EP2009/065699 patent/WO2010060892A1/en active Application Filing
- 2009-11-24 US US13/130,911 patent/US8958576B2/en active Active
- 2009-11-24 CN CN200980147165.9A patent/CN102224675B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1062816A (zh) * | 1990-12-17 | 1992-07-15 | 莫托罗拉公司 | 动态偏置放大器 |
CN1515069A (zh) * | 2001-04-04 | 2004-07-21 | �����ɷ� | 功率放大器的偏置调节 |
CN1918784A (zh) * | 2004-02-17 | 2007-02-21 | 艾利森电话股份有限公司 | 动态偏置放大器 |
JP2006262265A (ja) * | 2005-03-18 | 2006-09-28 | Rohm Co Ltd | 演算増幅器およびそれを用いた増幅回路、ならびに電子機器 |
Also Published As
Publication number | Publication date |
---|---|
US20110293115A1 (en) | 2011-12-01 |
CN102224675A (zh) | 2011-10-19 |
WO2010060892A1 (en) | 2010-06-03 |
US8958576B2 (en) | 2015-02-17 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Address after: Dane, Denmark Applicant after: Analog Devices Inc. Address before: Dane Alea Rod Applicant before: Audioasics AS |
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COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: AUDIOASICS AS TO: ANALOG DEVICES LTD. |
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ASS | Succession or assignment of patent right |
Owner name: INVENSENSE INC. Free format text: FORMER OWNER: ANALOG DEVICES LTD. Effective date: 20140128 |
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TA01 | Transfer of patent application right |
Effective date of registration: 20140128 Address after: American California Applicant after: Invensense Inc. Address before: Dane, Denmark Applicant before: Analog Devices Inc. |
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TA01 | Transfer of patent application right | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |