DE602005010129D1 - Verstärkerschaltung für kapazitive Umformer - Google Patents

Verstärkerschaltung für kapazitive Umformer

Info

Publication number
DE602005010129D1
DE602005010129D1 DE602005010129T DE602005010129T DE602005010129D1 DE 602005010129 D1 DE602005010129 D1 DE 602005010129D1 DE 602005010129 T DE602005010129 T DE 602005010129T DE 602005010129 T DE602005010129 T DE 602005010129T DE 602005010129 D1 DE602005010129 D1 DE 602005010129D1
Authority
DE
Germany
Prior art keywords
amplifier circuit
present
amplifier
relates
miniature
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.)
Active
Application number
DE602005010129T
Other languages
English (en)
Inventor
Carsten Fallesen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonion AS
Original Assignee
Sonion AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sonion AS filed Critical Sonion AS
Publication of DE602005010129D1 publication Critical patent/DE602005010129D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H03F1/305—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/14—Making holes
    • B23H9/16—Making holes using an electrolytic jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/04—Electrodes specially adapted therefor or their manufacture
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00—Auxiliary apparatus or details, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Amplifiers (AREA)
DE602005010129T 2004-01-12 2005-01-04 Verstärkerschaltung für kapazitive Umformer Active DE602005010129D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53587904P 2004-01-12 2004-01-12

Publications (1)

Publication Number Publication Date
DE602005010129D1 true DE602005010129D1 (de) 2008-11-20

Family

ID=34590497

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005010129T Active DE602005010129D1 (de) 2004-01-12 2005-01-04 Verstärkerschaltung für kapazitive Umformer

Country Status (6)

Country Link
US (1) US7634096B2 (de)
EP (1) EP1553696B1 (de)
KR (1) KR101171323B1 (de)
CN (1) CN100521516C (de)
AT (1) ATE410820T1 (de)
DE (1) DE602005010129D1 (de)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4579778B2 (ja) * 2004-08-17 2010-11-10 ルネサスエレクトロニクス株式会社 センサ用電源回路およびそれを用いたマイクロホンユニット
JP4440121B2 (ja) * 2005-01-06 2010-03-24 Ｎｅｃエレクトロニクス株式会社 電圧供給回路およびマイクユニット
US7929716B2 (en) * 2005-01-06 2011-04-19 Renesas Electronics Corporation Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method
KR100737727B1 (ko) * 2005-12-28 2007-07-10 주식회사 비에스이 콘덴서 마이크로폰과 그를 구비하는 이동통신 단말기 및이를 이용한 음성 신호 처리 방법
US7978863B2 (en) * 2006-06-26 2011-07-12 Nokia Corporation Apparatus and method to provide advanced microphone bias
ATE550886T1 (de) * 2006-09-26 2012-04-15 Epcos Pte Ltd Kalibriertes mikroelektromechanisches mikrofon
DE112007002856T5 (de) 2006-11-23 2009-10-29 Pulse Mems Aps Platinenmontage eines Mikrophonwandlers
CN101287304B (zh) * 2006-12-18 2013-02-06 桑尼奥公司 具有厚氧化物输入级晶体管的深亚微米mos前置放大器
US8542850B2 (en) * 2007-09-12 2013-09-24 Epcos Pte Ltd Miniature microphone assembly with hydrophobic surface coating
US8401208B2 (en) * 2007-11-14 2013-03-19 Infineon Technologies Ag Anti-shock methods for processing capacitive sensor signals
DE102007058951B4 (de) * 2007-12-07 2020-03-26 Snaptrack, Inc. MEMS Package
CN101933226B (zh) * 2008-01-29 2014-01-08 亚德诺半导体股份有限公司 可抑制干扰信号的信号调理器
US8059837B2 (en) * 2008-05-15 2011-11-15 Fortemedia, Inc. Audio processing method and system
JP5253275B2 (ja) 2009-04-03 2013-07-31 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 コンデンサマイクの増幅回路
ITTO20090495A1 (it) * 2009-06-30 2011-01-01 St Microelectronics Srl Circuito preamplificatore per un trasduttore acustico capacitivo di tipo microelettromeccanico
DE102010006132B4 (de) 2010-01-29 2013-05-08 Epcos Ag Miniaturisiertes elektrisches Bauelement mit einem Stapel aus einem MEMS und einem ASIC
US8233643B1 (en) 2010-03-23 2012-07-31 Fiberplex Technologies, LLC System and method for amplifying low level signals provided on electrical supply power
US8536924B2 (en) * 2010-09-02 2013-09-17 Fairchild Semiconductor Corporation High-impedance network
US8829991B2 (en) 2011-01-14 2014-09-09 Fairchild Semiconductor Corporation DC offset tracking circuit
US8599525B2 (en) * 2011-05-09 2013-12-03 Fairchild Semiconductor Corporation ESD protection on high impedance MIC input
KR20130044576A (ko) 2011-10-24 2013-05-03 한국전자통신연구원 음향 감지 회로 및 그것의 증폭 회로
US10211792B2 (en) 2012-04-04 2019-02-19 Ams Ag Sensor amplifier arrangement and method of amplifying a sensor signal
US9300259B2 (en) 2012-04-04 2016-03-29 Ams Ag Sensor amplifier arrangement and method for amplification of a sensor signal
JP5960906B2 (ja) * 2012-05-21 2016-08-02 エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ 増幅回路
EP2675188B1 (de) * 2012-06-12 2015-08-05 ams AG Sensoranordnung und Verfahren zur Erzeugung eines verstärkten Sensorsignals
CN202887042U (zh) * 2012-07-27 2013-04-17 上海晨思电子科技有限公司 一种带自启动电路的参考电压产生电路
US9148729B2 (en) 2012-09-25 2015-09-29 Invensence, Inc. Microphone with programmable frequency response
FR3020231B1 (fr) * 2014-04-18 2016-05-06 Akoustic Arts Enceinte sonore unidirectionnelle
KR101601179B1 (ko) * 2014-10-20 2016-03-08 현대자동차 주식회사 마이크로폰의 아날로그 신호 처리 회로
US10547953B2 (en) * 2014-11-10 2020-01-28 Analog Devices, Inc. Portless and membrane-free microphone
US20160134975A1 (en) * 2014-11-12 2016-05-12 Knowles Electronics, Llc Microphone With Trimming
US10516935B2 (en) 2015-07-15 2019-12-24 Knowles Electronics, Llc Hybrid transducer
US9843292B2 (en) 2015-10-14 2017-12-12 Knowles Electronics, Llc Method and apparatus for maintaining DC bias
WO2017083679A1 (en) 2015-11-12 2017-05-18 Knowles Electronics, Llc Method and apparatus to increase audio band microphone sensitivity
US10656006B2 (en) 2016-11-18 2020-05-19 Sonion Nederland B.V. Sensing circuit comprising an amplifying circuit and an amplifying circuit
US10327072B2 (en) 2016-11-18 2019-06-18 Sonion Nederland B.V. Phase correcting system and a phase correctable transducer system
US20180145643A1 (en) 2016-11-18 2018-05-24 Sonion Nederland B.V. Circuit for providing a high and a low impedance and a system comprising the circuit
US10264361B2 (en) 2016-11-18 2019-04-16 Sonion Nederland B.V. Transducer with a high sensitivity
US10070222B1 (en) 2017-02-16 2018-09-04 Akustica, Inc. Microphone system having microphone transducer in feedback loop with adjustable frequency -3dB point and improved settling speed
CN111480293A (zh) * 2017-10-17 2020-07-31 ams 国际有限公司 用于mems传感器和其它设备的耐输入电流的放大器输入级
IT201900001505A1 (it) * 2019-02-01 2020-08-01 St Microelectronics Srl Circuito amplificatore di carica con elevata dinamica di uscita per un sensore microelettromeccanico
US11284202B2 (en) * 2019-04-29 2022-03-22 Knowles Electronics, Llc Microphone assembly with improved overload performance
CN111181502A (zh) * 2019-10-24 2020-05-19 苏州纳芯微电子股份有限公司 前置放大电路

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063050A (en) * 1976-12-30 1977-12-13 Industrial Research Products, Inc. Acoustic transducer with improved electret assembly
FR2618622B1 (fr) * 1987-07-21 1994-05-20 Thomson Semiconducteurs Circuit compresseur de signal, en particulier pour appareil telephonique
US5132634A (en) * 1991-03-25 1992-07-21 Motorola, Inc. Amplifier circuit with envelope smoothing
US5097224A (en) * 1991-04-11 1992-03-17 Telex Communications, Inc. Self-biasing, low noise amplifier of extended dynamic range
US5446413A (en) * 1994-05-20 1995-08-29 Knowles Electronics, Inc. Impedance circuit for a miniature hearing aid
JP3418654B2 (ja) * 1995-10-27 2003-06-23 株式会社日立製作所 プリアンプ
JP2002534933A (ja) * 1999-01-07 2002-10-15 サーノフ コーポレイション プリント回路基板を有する大型ダイアフラムマイクロフォン素子を備えた補聴器
US6160450A (en) * 1999-04-09 2000-12-12 National Semiconductor Corporation Self-biased, phantom-powered and feedback-stabilized amplifier for electret microphone
US6275109B1 (en) * 1999-08-02 2001-08-14 Agere Systems Guardian Corp. Low noise microphone preamplifier
US6353344B1 (en) * 2000-05-22 2002-03-05 Microtronic Us, Inc. High impedance bias circuit
AU2002237204A1 (en) * 2001-03-09 2002-09-24 Techtronic A/S An electret condensor microphone preamplifier that is insensitive to leakage currents at the input
US7221766B2 (en) * 2002-04-15 2007-05-22 Knowles Electronics, Llc Microphone input buffer biasing circuit
US7149317B2 (en) * 2002-04-18 2006-12-12 Sonionmicrotronic Nederland B.V. CMOS high impedance circuit

Also Published As

Publication number Publication date
EP1553696A1 (de) 2005-07-13
ATE410820T1 (de) 2008-10-15
KR20050074329A (ko) 2005-07-18
KR101171323B1 (ko) 2012-08-10
CN1641999A (zh) 2005-07-20
EP1553696B1 (de) 2008-10-08
US7634096B2 (en) 2009-12-15
CN100521516C (zh) 2009-07-29
US20050151589A1 (en) 2005-07-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: EPPING HERMANN FISCHER, PATENTANWALTSGESELLSCHAFT