DE112009001037B8 - Kondensatormikrophonbaugruppe, dc spannungsversorgung und verfahren zur erzeugung einer dc vorspannung - Google Patents
Kondensatormikrophonbaugruppe, dc spannungsversorgung und verfahren zur erzeugung einer dc vorspannung Download PDFInfo
- Publication number
- DE112009001037B8 DE112009001037B8 DE112009001037.7T DE112009001037T DE112009001037B8 DE 112009001037 B8 DE112009001037 B8 DE 112009001037B8 DE 112009001037 T DE112009001037 T DE 112009001037T DE 112009001037 B8 DE112009001037 B8 DE 112009001037B8
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- generating
- power supply
- microphone module
- capacitor microphone
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/005—Electrostatic transducers using semiconductor materials
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Circuit For Audible Band Transducer (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12649108P | 2008-05-05 | 2008-05-05 | |
US61/126,491 | 2008-05-05 | ||
PCT/EP2009/055346 WO2009135815A1 (en) | 2008-05-05 | 2009-05-04 | Fast precision charge pump |
Publications (3)
Publication Number | Publication Date |
---|---|
DE112009001037T5 DE112009001037T5 (de) | 2011-07-14 |
DE112009001037B4 DE112009001037B4 (de) | 2013-11-07 |
DE112009001037B8 true DE112009001037B8 (de) | 2014-03-13 |
Family
ID=40834460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112009001037.7T Active DE112009001037B8 (de) | 2008-05-05 | 2009-05-04 | Kondensatormikrophonbaugruppe, dc spannungsversorgung und verfahren zur erzeugung einer dc vorspannung |
Country Status (5)
Country | Link |
---|---|
US (1) | US8666095B2 (de) |
JP (1) | JP5804943B2 (de) |
KR (1) | KR101592617B1 (de) |
DE (1) | DE112009001037B8 (de) |
WO (1) | WO2009135815A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8542850B2 (en) * | 2007-09-12 | 2013-09-24 | Epcos Pte Ltd | Miniature microphone assembly with hydrophobic surface coating |
DE102007058951B4 (de) * | 2007-12-07 | 2020-03-26 | Snaptrack, Inc. | MEMS Package |
DE102010006132B4 (de) | 2010-01-29 | 2013-05-08 | Epcos Ag | Miniaturisiertes elektrisches Bauelement mit einem Stapel aus einem MEMS und einem ASIC |
DE102011010506B4 (de) | 2011-02-07 | 2017-10-26 | Tdk Corporation | Mikrofonanordnung |
US8610497B2 (en) | 2011-07-14 | 2013-12-17 | Infineon Technologies Ag | System and method for capacitive signal source amplifier |
US9236837B2 (en) | 2011-08-25 | 2016-01-12 | Infineon Technologies Ag | System and method for low distortion capacitive signal source amplifier |
US9143876B2 (en) | 2011-11-17 | 2015-09-22 | Infineon Technologies Ag | Glitch detection and method for detecting a glitch |
US8995690B2 (en) | 2011-11-28 | 2015-03-31 | Infineon Technologies Ag | Microphone and method for calibrating a microphone |
US9337722B2 (en) * | 2012-01-27 | 2016-05-10 | Invensense, Inc. | Fast power-up bias voltage circuit |
US9467774B2 (en) | 2012-02-10 | 2016-10-11 | Infineon Technologies Ag | System and method for a PCM interface for a capacitive signal source |
US8638249B2 (en) | 2012-04-16 | 2014-01-28 | Infineon Technologies Ag | System and method for high input capacitive signal amplifier |
US9281744B2 (en) | 2012-04-30 | 2016-03-08 | Infineon Technologies Ag | System and method for a programmable voltage source |
US9214911B2 (en) | 2012-08-30 | 2015-12-15 | Infineon Technologies Ag | System and method for adjusting the sensitivity of a capacitive signal source |
KR101871811B1 (ko) * | 2012-09-18 | 2018-06-28 | 한국전자통신연구원 | 잡음 필터를 사용한 mems 마이크로폰 |
US8872589B2 (en) | 2012-09-20 | 2014-10-28 | Infineon Technologies Ag | System and method for a programmable gain amplifier |
US9083286B2 (en) | 2012-10-31 | 2015-07-14 | Infineon Technologies Ag | System and method for capacitive signal source amplifier |
US9306449B2 (en) | 2013-03-15 | 2016-04-05 | Robert Bosch Gmbh | Adjustable biasing circuits for MEMS capacitive microphones |
US10020008B2 (en) | 2013-05-23 | 2018-07-10 | Knowles Electronics, Llc | Microphone and corresponding digital interface |
CN110244833B (zh) | 2013-05-23 | 2023-05-12 | 美商楼氏电子有限公司 | 麦克风组件 |
US10028054B2 (en) * | 2013-10-21 | 2018-07-17 | Knowles Electronics, Llc | Apparatus and method for frequency detection |
US20180317019A1 (en) | 2013-05-23 | 2018-11-01 | Knowles Electronics, Llc | Acoustic activity detecting microphone |
US9332369B2 (en) | 2013-10-22 | 2016-05-03 | Infineon Technologies Ag | System and method for automatic calibration of a transducer |
US9190903B2 (en) | 2013-12-20 | 2015-11-17 | Infineon Technologies, Ag | System and method for a controlled feedback charge pump |
US9628920B2 (en) | 2014-10-16 | 2017-04-18 | Infineon Technologies Ag | Voltage generator and biasing thereof |
CN107112012B (zh) | 2015-01-07 | 2020-11-20 | 美商楼氏电子有限公司 | 用于音频处理的方法和***及计算机可读存储介质 |
US10165356B1 (en) | 2017-06-05 | 2018-12-25 | Semiconductor Components Industries, Llc | Methods and apparatus for controlling a bias voltage |
US11778390B2 (en) * | 2019-11-07 | 2023-10-03 | Knowles Electronics, Llc. | Microphone assembly having a direct current bias circuit |
US12028078B2 (en) * | 2022-08-31 | 2024-07-02 | Texas Instruments Incorporated | Load dependent discharge for voltage controlled oscillator-based charge pump regulator |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070160234A1 (en) * | 2003-12-01 | 2007-07-12 | Audioasics A/S | Microphone with voltage pump |
US20090316935A1 (en) * | 2004-02-09 | 2009-12-24 | Audioasics A/S | Digital microphone |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5280543A (en) * | 1989-12-26 | 1994-01-18 | Yamaha Corporation | Acoustic apparatus and driving apparatus constituting the same |
JP3371045B2 (ja) | 1994-12-26 | 2003-01-27 | 株式会社オーディオテクニカ | コンデンサマイクロホン |
US5694072A (en) | 1995-08-28 | 1997-12-02 | Pericom Semiconductor Corp. | Programmable substrate bias generator with current-mirrored differential comparator and isolated bulk-node sensing transistor for bias voltage control |
JPH11154983A (ja) * | 1997-11-21 | 1999-06-08 | Oki Electric Ind Co Ltd | 送信回路 |
JP2000194431A (ja) | 1998-12-24 | 2000-07-14 | Rohm Co Ltd | 安定化電源回路 |
US6636104B2 (en) | 2000-06-13 | 2003-10-21 | Microsemi Corporation | Multiple output charge pump |
US6785180B2 (en) | 2001-03-15 | 2004-08-31 | Micron Technology, Inc. | Programmable soft-start control for charge pump |
JP4076373B2 (ja) * | 2002-06-04 | 2008-04-16 | ローム株式会社 | 音声出力装置を有する電子装置 |
US7088171B2 (en) | 2003-06-13 | 2006-08-08 | Texas Instruments Incorporated | Charge pump with constant output current |
JP4557577B2 (ja) * | 2004-03-26 | 2010-10-06 | 三洋電機株式会社 | チャージポンプ回路 |
EP1599067B1 (de) | 2004-05-21 | 2013-05-01 | Epcos Pte Ltd | Detektion und Kontrolle des Membrankollaps in einem Kondensatormikrofon |
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 |
JP4390716B2 (ja) * | 2005-01-06 | 2009-12-24 | Necエレクトロニクス株式会社 | 電圧供給回路、マイクユニットおよびマイクユニットの感度調整方法 |
KR20080063267A (ko) | 2005-07-19 | 2008-07-03 | 아우디오아시스 에이/에스 | 프로그래밍 가능 마이크로폰 |
US8384306B2 (en) | 2006-01-17 | 2013-02-26 | Semiconductor Components Industries, Llc | Regulated charge pump and method therefor |
JP2008028879A (ja) * | 2006-07-25 | 2008-02-07 | Sanyo Electric Co Ltd | マイクアンプ |
EP1906704B1 (de) * | 2006-09-26 | 2012-03-21 | Epcos Pte Ltd | Kalibriertes mikroelektromechanisches Mikrofon |
US7535210B2 (en) * | 2006-10-18 | 2009-05-19 | Texas Instruments Incorporated | Predictive duty ratio generating circuit and method for synchronous boost converters operating in PFM mode |
JP4959315B2 (ja) | 2006-12-18 | 2012-06-20 | オンセミコンダクター・トレーディング・リミテッド | 静電容量変化検出回路及びコンデンサマイクロホン装置 |
-
2009
- 2009-05-04 DE DE112009001037.7T patent/DE112009001037B8/de active Active
- 2009-05-04 WO PCT/EP2009/055346 patent/WO2009135815A1/en active Application Filing
- 2009-05-04 JP JP2011507881A patent/JP5804943B2/ja not_active Expired - Fee Related
- 2009-05-04 KR KR1020107026366A patent/KR101592617B1/ko not_active IP Right Cessation
- 2009-05-04 US US12/991,164 patent/US8666095B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070160234A1 (en) * | 2003-12-01 | 2007-07-12 | Audioasics A/S | Microphone with voltage pump |
US20090316935A1 (en) * | 2004-02-09 | 2009-12-24 | Audioasics A/S | Digital microphone |
Also Published As
Publication number | Publication date |
---|---|
DE112009001037T5 (de) | 2011-07-14 |
DE112009001037B4 (de) | 2013-11-07 |
JP2011520370A (ja) | 2011-07-14 |
WO2009135815A1 (en) | 2009-11-12 |
KR20110009174A (ko) | 2011-01-27 |
JP5804943B2 (ja) | 2015-11-04 |
US8666095B2 (en) | 2014-03-04 |
KR101592617B1 (ko) | 2016-02-05 |
US20110170714A1 (en) | 2011-07-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |
Effective date: 20140208 |
|
R081 | Change of applicant/patentee |
Owner name: TDK CORP., JP Free format text: FORMER OWNER: EPCOS PTE LTD, SINGAPORE, SG |
|
R082 | Change of representative |
Representative=s name: EPPING HERMANN FISCHER, PATENTANWALTSGESELLSCH, DE Representative=s name: EPPING HERMANN FISCHER PATENTANWALTSGESELLSCHA, DE |