DE112009001037B8 - Kondensatormikrophonbaugruppe, dc spannungsversorgung und verfahren zur erzeugung einer dc vorspannung - Google Patents

Kondensatormikrophonbaugruppe, dc spannungsversorgung und verfahren zur erzeugung einer dc vorspannung Download PDF

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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
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DE
Germany
Prior art keywords
voltage
generating
power supply
microphone module
capacitor microphone
Prior art date
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Active
Application number
DE112009001037.7T
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English (en)
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DE112009001037T5 (de
DE112009001037B4 (de
Inventor
Tomasz E. Hanzlik
Jens Kristian Poulsen
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.)
TDK Corp
Original Assignee
Epcos Pte Ltd
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Publication date
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Publication of DE112009001037T5 publication Critical patent/DE112009001037T5/de
Publication of DE112009001037B4 publication Critical patent/DE112009001037B4/de
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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)
DE112009001037.7T 2008-05-05 2009-05-04 Kondensatormikrophonbaugruppe, dc spannungsversorgung und verfahren zur erzeugung einer dc vorspannung Active DE112009001037B8 (de)

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)

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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

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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

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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
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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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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