JP2006191360A5 - - Google Patents

Download PDF

Info

Publication number
JP2006191360A5
JP2006191360A5 JP2005001381A JP2005001381A JP2006191360A5 JP 2006191360 A5 JP2006191360 A5 JP 2006191360A5 JP 2005001381 A JP2005001381 A JP 2005001381A JP 2005001381 A JP2005001381 A JP 2005001381A JP 2006191360 A5 JP2006191360 A5 JP 2006191360A5
Authority
JP
Japan
Prior art keywords
voltage
circuit
booster
stage
booster circuit
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.)
Granted
Application number
JP2005001381A
Other languages
English (en)
Japanese (ja)
Other versions
JP2006191360A (ja
JP4440121B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2005001381A priority Critical patent/JP4440121B2/ja
Priority claimed from JP2005001381A external-priority patent/JP4440121B2/ja
Priority to US11/325,346 priority patent/US7864970B2/en
Priority to CN2006100057486A priority patent/CN1801590B/zh
Priority to KR1020060001626A priority patent/KR100760877B1/ko
Publication of JP2006191360A publication Critical patent/JP2006191360A/ja
Publication of JP2006191360A5 publication Critical patent/JP2006191360A5/ja
Application granted granted Critical
Publication of JP4440121B2 publication Critical patent/JP4440121B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP2005001381A 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット Expired - Fee Related JP4440121B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2005001381A JP4440121B2 (ja) 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット
US11/325,346 US7864970B2 (en) 2005-01-06 2006-01-05 Voltage supply circuit and microphone unit
CN2006100057486A CN1801590B (zh) 2005-01-06 2006-01-06 电压供应电路和扩音器单元
KR1020060001626A KR100760877B1 (ko) 2005-01-06 2006-01-06 전압 공급 회로 및 마이크로폰 유닛

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005001381A JP4440121B2 (ja) 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット

Publications (3)

Publication Number Publication Date
JP2006191360A JP2006191360A (ja) 2006-07-20
JP2006191360A5 true JP2006191360A5 (enExample) 2006-12-14
JP4440121B2 JP4440121B2 (ja) 2010-03-24

Family

ID=36640476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005001381A Expired - Fee Related JP4440121B2 (ja) 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット

Country Status (4)

Country Link
US (1) US7864970B2 (enExample)
JP (1) JP4440121B2 (enExample)
KR (1) KR100760877B1 (enExample)
CN (1) CN1801590B (enExample)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7356151B2 (en) * 2004-03-30 2008-04-08 Akg Acoustic Gmbh Microphone system
US7728663B2 (en) * 2006-06-22 2010-06-01 Sige Semiconductor Inc. Integrated implementation of a voltage boost follower and method therefor
US8027489B1 (en) * 2006-07-07 2011-09-27 Analog Devices, Inc. Multi-voltage biasing system with over-voltage protection
US8077878B2 (en) * 2006-07-26 2011-12-13 Qualcomm Incorporated Low-power on-chip headset switch detection
JP2008083850A (ja) * 2006-09-26 2008-04-10 Nec Electronics Corp レギュレータ回路
KR101369398B1 (ko) * 2007-01-15 2014-03-04 삼성디스플레이 주식회사 액정 표시 장치 및 그의 구동 방법
US8456450B2 (en) 2007-06-28 2013-06-04 Apple Inc. Systems and methods for impedance stabilization
US8335328B2 (en) * 2007-10-24 2012-12-18 Winbond Electronics Corporation Programmable integrated microphone interface circuit
US8401208B2 (en) * 2007-11-14 2013-03-19 Infineon Technologies Ag Anti-shock methods for processing capacitive sensor signals
JP2009225100A (ja) 2008-03-17 2009-10-01 Nec Electronics Corp 半導体集積回路及びコンデンサ・マイクロフォン
US8816659B2 (en) 2010-08-06 2014-08-26 Peregrine Semiconductor Corporation Low-noise high efficiency bias generation circuits and method
GB2466785B (en) * 2008-12-30 2011-06-08 Wolfson Microelectronics Plc Apparatus and method for testing a capacitive transducer and/or associated electronic circuitry
JP2010198570A (ja) * 2009-02-27 2010-09-09 Panasonic Corp 電圧供給回路
US8233643B1 (en) * 2010-03-23 2012-07-31 Fiberplex Technologies, LLC System and method for amplifying low level signals provided on electrical supply power
US9099961B2 (en) 2010-04-19 2015-08-04 Rf Micro Devices, Inc. Output impedance compensation of a pseudo-envelope follower power management system
US9431974B2 (en) 2010-04-19 2016-08-30 Qorvo Us, Inc. Pseudo-envelope following feedback delay compensation
US8493141B2 (en) 2010-04-19 2013-07-23 Rf Micro Devices, Inc. Pseudo-envelope following power management system
US9215529B2 (en) * 2010-07-18 2015-12-15 Bose Corporation Multi-mode audio device interfacing
US8494185B2 (en) * 2010-07-18 2013-07-23 Bose Corporation Electro-acoustic transducer tuning and data storage
US8494184B2 (en) * 2010-07-18 2013-07-23 Bose Corporation Digital data transfer via audio signal conductors
WO2012047738A1 (en) 2010-09-29 2012-04-12 Rf Micro Devices, Inc. SINGLE μC-BUCKBOOST CONVERTER WITH MULTIPLE REGULATED SUPPLY OUTPUTS
DE102011002937A1 (de) * 2011-01-20 2012-07-26 Ford Global Technologies, Llc Partikelsensor, Abgassystem und Verfahren zum Bestimmen von Partikeln im Abgas
US9379667B2 (en) 2011-05-05 2016-06-28 Rf Micro Devices, Inc. Multiple power supply input parallel amplifier based envelope tracking
US9246460B2 (en) 2011-05-05 2016-01-26 Rf Micro Devices, Inc. Power management architecture for modulated and constant supply operation
US9668076B2 (en) * 2011-06-21 2017-05-30 Apple Inc. Microphone headset failure detecting and reporting
US9263996B2 (en) 2011-07-20 2016-02-16 Rf Micro Devices, Inc. Quasi iso-gain supply voltage function for envelope tracking systems
CN103988406B (zh) 2011-10-26 2017-03-01 Qorvo美国公司 射频(rf)开关转换器以及使用rf开关转换器的rf放大装置
US9484797B2 (en) 2011-10-26 2016-11-01 Qorvo Us, Inc. RF switching converter with ripple correction
US9250643B2 (en) 2011-11-30 2016-02-02 Rf Micro Devices, Inc. Using a switching signal delay to reduce noise from a switching power supply
US9515621B2 (en) 2011-11-30 2016-12-06 Qorvo Us, Inc. Multimode RF amplifier system
US9041365B2 (en) 2011-12-01 2015-05-26 Rf Micro Devices, Inc. Multiple mode RF power converter
US9256234B2 (en) 2011-12-01 2016-02-09 Rf Micro Devices, Inc. Voltage offset loop for a switching controller
US9280163B2 (en) 2011-12-01 2016-03-08 Rf Micro Devices, Inc. Average power tracking controller
US9494962B2 (en) 2011-12-02 2016-11-15 Rf Micro Devices, Inc. Phase reconfigurable switching power supply
JP5979855B2 (ja) * 2011-12-06 2016-08-31 株式会社オーディオテクニカ コンデンサマイクロホン
US9813036B2 (en) 2011-12-16 2017-11-07 Qorvo Us, Inc. Dynamic loadline power amplifier with baseband linearization
US9298198B2 (en) 2011-12-28 2016-03-29 Rf Micro Devices, Inc. Noise reduction for envelope tracking
US8674751B2 (en) * 2012-04-16 2014-03-18 Taiwan Semiconductor Manufacturing Co., Ltd. Reference generation in an integrated circuit device
US9627975B2 (en) 2012-11-16 2017-04-18 Qorvo Us, Inc. Modulated power supply system and method with automatic transition between buck and boost modes
US9929696B2 (en) 2013-01-24 2018-03-27 Qorvo Us, Inc. Communications based adjustments of an offset capacitive voltage
US9479118B2 (en) 2013-04-16 2016-10-25 Rf Micro Devices, Inc. Dual instantaneous envelope tracking
CN104167769B (zh) * 2013-05-16 2016-08-03 海洋王(东莞)照明科技有限公司 一种扩展电池输出电压电路及电子设备
CN104168529B (zh) * 2013-05-17 2018-08-28 上海耐普微电子有限公司 多模式的微机械麦克风
US9374005B2 (en) * 2013-08-13 2016-06-21 Rf Micro Devices, Inc. Expanded range DC-DC converter
CN108449057B (zh) * 2013-09-12 2024-10-11 意法半导体研发(深圳)有限公司 音频设备中去除pop噪声的方法与电路
JP2015115881A (ja) * 2013-12-13 2015-06-22 株式会社東芝 差動増幅回路およびマイクアンプシステム
US9614476B2 (en) 2014-07-01 2017-04-04 Qorvo Us, Inc. Group delay calibration of RF envelope tracking
US9948240B2 (en) 2015-07-01 2018-04-17 Qorvo Us, Inc. Dual-output asynchronous power converter circuitry
US9912297B2 (en) 2015-07-01 2018-03-06 Qorvo Us, Inc. Envelope tracking power converter circuitry
US20180234764A1 (en) * 2015-08-05 2018-08-16 Wizedsp Ltd. Ultra-low-power and low noise microphone for acoustic communication
WO2017138628A1 (ja) * 2016-02-12 2017-08-17 国立大学法人東北大学 電圧調整回路
US9973147B2 (en) 2016-05-10 2018-05-15 Qorvo Us, Inc. Envelope tracking power management circuit
US10530303B2 (en) * 2016-05-25 2020-01-07 Cirrus Logic, Inc. Multi-phase power converter system using multiple amplifier integrated circuits
US12107551B2 (en) 2016-05-25 2024-10-01 Cirrus Logic Inc. Dual-domain power distribution system in a mobile device
TWI727034B (zh) * 2016-06-24 2021-05-11 日商東京計器股份有限公司 增幅裝置
US10298123B2 (en) * 2017-06-06 2019-05-21 Infineon Technologies Austria Ag Power supply control and use of generated ramp signal to control activation
US10674296B2 (en) * 2017-07-28 2020-06-02 Cirrus Logic, Inc. Microphone bias apparatus and method
CN107371100B (zh) * 2017-09-14 2020-02-28 珠海全志科技股份有限公司 一种麦克风偏置驱动电路
US10476437B2 (en) 2018-03-15 2019-11-12 Qorvo Us, Inc. Multimode voltage tracker circuit
JP2019208128A (ja) * 2018-05-29 2019-12-05 ヤマハ株式会社 信号伝送回路及び信号伝送方法
US12068691B2 (en) * 2021-12-09 2024-08-20 Renesas Electronics America Inc. Regulator booster activated by boost signal to boost voltage of regulated output by target amount
DE102023211448B3 (de) * 2023-11-17 2025-02-20 Infineon Technologies Ag Versorgungsspannungserzeugung für ein resistives sensorelement

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103291A (ja) 1981-12-15 1983-06-20 Matsushita Electric Ind Co Ltd コンデンサ型マイクロホン
US4617555A (en) * 1985-04-17 1986-10-14 Data Distribution Devices, Inc. Receiver for audible alarm
JPS6324789A (ja) 1986-07-16 1988-02-02 Sanyo Electric Co Ltd リモ−トコントロ−ル装置
US5239579A (en) * 1991-01-04 1993-08-24 Schuh Peter O Adaptive amplifier circuit
US6195437B1 (en) * 1997-09-30 2001-02-27 Compaq Computer Corporation Method and apparatus for independent gain control of a microphone and speaker for a speakerphone mode and a non-speakerphone audio mode of a computer system
JP4227679B2 (ja) 1998-05-07 2009-02-18 株式会社オーディオテクニカ インピーダンス変換器
US7003127B1 (en) * 1999-01-07 2006-02-21 Sarnoff Corporation Hearing aid with large diaphragm microphone element including a printed circuit board
JP2000217188A (ja) 1999-01-20 2000-08-04 Nec Niigata Ltd コンデンサマイクロフォン接続回路
JP2001102875A (ja) * 1999-10-01 2001-04-13 Hosiden Corp 半導体増幅回路及び半導体エレクトレットコンデンサマイクロホン
KR100486868B1 (ko) * 2002-07-30 2005-05-03 주식회사 비에스이 증폭기를 내장한 콘덴서 마이크로폰
KR100502171B1 (ko) * 2002-07-30 2005-07-22 주식회사 비에스이 저전압 인가형 콘덴서 마이크로폰
US7787642B2 (en) * 2003-07-17 2010-08-31 Massachusetts Institute Of Technology Low-power high-PSRR current-mode microphone pre-amplifier system and method
EP1690332A1 (en) * 2003-12-01 2006-08-16 Audioasics A/S Microphone with voltage pump
DE602005010129D1 (de) * 2004-01-12 2008-11-20 Sonion As Verstärkerschaltung für kapazitive Umformer
EP1599067B1 (en) * 2004-05-21 2013-05-01 Epcos Pte Ltd Detection and control of diaphragm collapse in condenser microphones

Similar Documents

Publication Publication Date Title
JP2006191360A5 (enExample)
JP4440121B2 (ja) 電圧供給回路およびマイクユニット
JP4657799B2 (ja) 発光ダイオード駆動回路
SE0303158D0 (sv) Stromversorgungseinrichtung mit mehreren parallel geschalteten schaltnetzteilen
WO2006018923A1 (ja) 電源装置
WO2007018089A1 (ja) 電源装置及びこれを用いた電気機器
TW201534028A (zh) 應用於電源轉換器內控制器的電容放大電路及其操作方法
JP2004350390A (ja) 正負出力電圧用電源装置
CN101018010B (zh) 用于正和负电压电平调节的单反馈输入
US6469483B2 (en) PWM control circuit for DC-DC converter
JP2009088426A (ja) 駆動回路
JP6090214B2 (ja) 電源回路
JP2006049445A (ja) ボタン照明点灯回路の制御方法及びボタン照明点灯回路
JP2020028172A (ja) 電源供給回路
JP2007325371A (ja) 電源装置
JP4467395B2 (ja) 電源装置
US8411879B2 (en) Speaker driver circuit driven by positive and negative voltages
JP5333111B2 (ja) 増幅装置
JP2010081748A (ja) 昇圧型dc−dcコンバータの制御回路、昇圧型dc−dcコンバータの制御方法及び昇圧型dc−dcコンバータ
WO2006085632A1 (ja) 電源回路、及び携帯機器
JP4511287B2 (ja) 昇圧型スイッチングレギュレータ回路
JP4720209B2 (ja) 基準電圧発生回路及び駆動回路
JP2006134126A5 (enExample)
JP2009231644A (ja) 発光素子駆動回路
JP2010166749A (ja) 昇圧回路及びpwm信号生成回路