ATE410820T1 - Verstärkerschaltung für kapazitive umformer - Google Patents
Verstärkerschaltung für kapazitive umformerInfo
- Publication number
- ATE410820T1 ATE410820T1 AT05075002T AT05075002T ATE410820T1 AT E410820 T1 ATE410820 T1 AT E410820T1 AT 05075002 T AT05075002 T AT 05075002T AT 05075002 T AT05075002 T AT 05075002T AT E410820 T1 ATE410820 T1 AT E410820T1
- Authority
- AT
- Austria
- Prior art keywords
- amplifier circuit
- present
- amplifier
- relates
- miniature
- Prior art date
Links
Classifications
-
- 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
-
- 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
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53587904P | 2004-01-12 | 2004-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE410820T1 true ATE410820T1 (de) | 2008-10-15 |
Family
ID=34590497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT05075002T ATE410820T1 (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)
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 |
US20110051954A1 (en) * | 2008-01-29 | 2011-03-03 | Audioasics A/S | Signal conditioner with suppression of interfering signals |
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 |
US9559647B2 (en) | 2012-05-21 | 2017-01-31 | Epcos Ag | Amplifier circuit |
EP2955936B1 (de) * | 2012-06-12 | 2017-05-24 | 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 |
WO2016077193A1 (en) * | 2014-11-10 | 2016-05-19 | 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 |
EP3324649A1 (de) | 2016-11-18 | 2018-05-23 | Sonion Nederland B.V. | Wandler mit hoher empfindlichkeit |
US10656006B2 (en) | 2016-11-18 | 2020-05-19 | Sonion Nederland B.V. | Sensing circuit comprising an amplifying circuit and an amplifying circuit |
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 |
US10327072B2 (en) | 2016-11-18 | 2019-06-18 | Sonion Nederland B.V. | Phase correcting system and a phase correctable transducer system |
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)
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 |
WO2000041432A2 (en) * | 1999-01-07 | 2000-07-13 | Sarnoff Corporation | Hearing aid with large diaphragm microphone element including a printed circuit board |
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 |
WO2002073792A2 (en) * | 2001-03-09 | 2002-09-19 | 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 |
-
2005
- 2005-01-04 AT AT05075002T patent/ATE410820T1/de not_active IP Right Cessation
- 2005-01-04 EP EP05075002A patent/EP1553696B1/de active Active
- 2005-01-04 DE DE602005010129T patent/DE602005010129D1/de active Active
- 2005-01-11 US US11/032,806 patent/US7634096B2/en active Active
- 2005-01-12 CN CNB2005100039182A patent/CN100521516C/zh not_active Expired - Fee Related
- 2005-01-12 KR KR1020050003050A patent/KR101171323B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1553696A1 (de) | 2005-07-13 |
CN100521516C (zh) | 2009-07-29 |
CN1641999A (zh) | 2005-07-20 |
KR101171323B1 (ko) | 2012-08-10 |
US20050151589A1 (en) | 2005-07-14 |
US7634096B2 (en) | 2009-12-15 |
KR20050074329A (ko) | 2005-07-18 |
DE602005010129D1 (de) | 2008-11-20 |
EP1553696B1 (de) | 2008-10-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |