CN101895804B - 动反馈系统 - Google Patents

动反馈系统 Download PDF

Info

Publication number
CN101895804B
CN101895804B CN201010241678.0A CN201010241678A CN101895804B CN 101895804 B CN101895804 B CN 101895804B CN 201010241678 A CN201010241678 A CN 201010241678A CN 101895804 B CN101895804 B CN 101895804B
Authority
CN
China
Prior art keywords
impedance
frequency
current
audio
output
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
CN201010241678.0A
Other languages
English (en)
Chinese (zh)
Other versions
CN101895804A (zh
Inventor
杰拉尔德·R·斯坦利
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.)
Crown Audio Inc
Original Assignee
Crown Audio Inc
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 Crown Audio Inc filed Critical Crown Audio Inc
Publication of CN101895804A publication Critical patent/CN101895804A/zh
Application granted granted Critical
Publication of CN101895804B publication Critical patent/CN101895804B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • 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
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45136—One differential amplifier in IC-block form being shown
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45526—Indexing scheme relating to differential amplifiers the FBC comprising a resistor-capacitor combination and being coupled between the LC and the IC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/04—Circuits for transducers for correcting frequency response

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Nonlinear Science (AREA)
  • Circuit For Audible Band Transducer (AREA)
CN201010241678.0A 2009-03-31 2010-03-31 动反馈系统 Active CN101895804B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16524009P 2009-03-31 2009-03-31
US61/165,240 2009-03-31
US12/748,097 2010-03-26
US12/748,097 US8401207B2 (en) 2009-03-31 2010-03-26 Motional feedback system

Publications (2)

Publication Number Publication Date
CN101895804A CN101895804A (zh) 2010-11-24
CN101895804B true CN101895804B (zh) 2014-06-11

Family

ID=42312737

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010241678.0A Active CN101895804B (zh) 2009-03-31 2010-03-31 动反馈系统

Country Status (4)

Country Link
US (1) US8401207B2 (https=)
EP (1) EP2237569B1 (https=)
JP (1) JP5010006B2 (https=)
CN (1) CN101895804B (https=)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4783478B1 (ja) * 2011-01-28 2011-09-28 オーディオ・ラボ有限会社 誘導信号除去回路
JP2012186676A (ja) * 2011-03-07 2012-09-27 Sony Corp 信号処理装置および信号処理方法
EP2642769B1 (en) * 2012-03-20 2017-12-13 Nxp B.V. A loudspeaker drive circuit for determining loudspeaker characteristics and/or diagnostics
KR101991860B1 (ko) * 2012-05-07 2019-06-24 삼성전자주식회사 카메라 모듈에서 액추에이터 제어 방법 및 장치
US9654064B2 (en) * 2012-12-18 2017-05-16 Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America Amplifier apparatus with controlled negative output impedance
US9301071B2 (en) * 2013-03-12 2016-03-29 Quantance, Inc. Reducing audio distortion in an audio system
US9235937B1 (en) 2013-06-05 2016-01-12 Analog Devices, Inc. Mounting method for satellite crash sensors
GB2526881B (en) * 2014-06-06 2017-10-04 Cirrus Logic Int Semiconductor Ltd Temperature monitoring for loudspeakers
US9749739B2 (en) 2015-09-18 2017-08-29 Qualcomm Incorporated Protection of a speaker from thermal damage
CN107295442B (zh) * 2016-04-11 2020-01-17 展讯通信（上海）有限公司 扬声器控制方法及装置
CN106454679B (zh) * 2016-11-17 2019-05-21 矽力杰半导体技术(杭州)有限公司 扬声器振膜状态估计方法及应用其的扬声器驱动电路
US10694289B2 (en) * 2017-05-02 2020-06-23 Texas Instruments Incorporated Loudspeaker enhancement
GB201712391D0 (en) 2017-08-01 2017-09-13 Turner Michael James Controller for an electromechanical transducer
WO2019118921A1 (en) * 2017-12-14 2019-06-20 Flodesign Sonics, Inc. Acoustic transducer drive and controller
IT201800009772A1 (it) * 2018-10-25 2020-04-25 Ik Multimedia Production Srl Dispositivo di preamplificazione per strumenti musicali elettrici a corde.
US11171615B2 (en) * 2019-02-04 2021-11-09 Blamp Systems, LLC Power limiter configuration for audio signals
CN111541975B (zh) * 2020-04-27 2021-05-07 维沃移动通信有限公司 音频信号的调节方法及电子设备
US11470434B2 (en) 2020-06-29 2022-10-11 Texas Instruments Incorporated System and method for estimating temperature of voice coil
CN114079439B (zh) * 2020-08-17 2025-07-15 中兴通讯股份有限公司 双工器、网络设备、控制方法、电子设备及存储介质
CN112383851B (zh) * 2020-11-13 2022-02-22 苏州森斯微电子技术有限公司 一种具有扬声器功能的多变量传感器及应用
CN115190393B (zh) * 2022-07-07 2025-08-01 莱珀(深圳)科技有限公司 一种音频接口反馈电路及其反馈方法
US12445773B2 (en) 2022-08-04 2025-10-14 Barefoot Sound, Llc Method and apparatus for reducing reaction forces in loudspeakers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943956A (en) * 1988-04-25 1990-07-24 Yamaha Corporation Driving apparatus
CN200959659Y (zh) * 2005-12-29 2007-10-10 颜怀伟 阻抗与功率可变式扬声器及其功放与控制电路

Family Cites Families (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779382A (en) 1927-08-01 1930-10-21 Bell Telephone Labor Inc Negative impedance circuit
US1779126A (en) 1927-08-01 1930-10-21 Bell Telephone Labor Inc Negative resistance circuits
US1779380A (en) 1927-08-01 1930-10-21 Bell Telephone Labor Inc Negative impedance circuits
US1822758A (en) 1928-09-21 1931-09-08 Toulon Pierre Marie Gabriel System for transmitting and amplifying vibratory currents and movements
US2102671A (en) 1929-05-21 1937-12-21 Bell Telephone Labor Inc Wave translation system
US2099769A (en) 1936-06-23 1937-11-23 American Telephone & Telegraph Circuits embodying negative impedance
US2194175A (en) 1937-07-13 1940-03-19 Telefunken Gmbh Distortion reducing arrangement
US2860183A (en) 1954-02-01 1958-11-11 Conrad Ivan Willard Sound reproducing system
US2843671A (en) 1954-05-19 1958-07-15 David Bogen & Company Inc Feed back amplifiers
US2841648A (en) 1955-08-08 1958-07-01 Electro Voice Sound producing device
US3009991A (en) 1955-12-01 1961-11-21 Bekey Ivan Sound reproduction system
US2948778A (en) 1956-05-07 1960-08-09 Warner W Clements Sound reproducing means
US2887532A (en) 1956-10-31 1959-05-19 Rca Corp Audio frequency amplifier
US3047661A (en) 1957-01-18 1962-07-31 Daniel E Winker High fidelity audio system
US3073899A (en) 1957-03-29 1963-01-15 Philo T Farnsworth Transducing apparatus
US3057961A (en) 1959-01-08 1962-10-09 Security First Nat Bank Self-correcting, high fidelity, sound reproducing apparatus
BE626697A (https=) 1961-12-29
US3530244A (en) 1967-02-13 1970-09-22 Martin G Reiffin Motional feedback amplifier systems
US3821473A (en) 1969-06-20 1974-06-28 J Mullins Sound reproduction system with driven and undriven speakers and motional feedback
US3798374A (en) 1972-04-03 1974-03-19 Rene Oliveras Sound reproducing system utilizing motional feedback
NL7312429A (https=) 1972-09-11 1974-03-13
US4170742A (en) 1974-07-15 1979-10-09 Pioneer Electronic Corporation Piezoelectric transducer with multiple electrode areas
SE398287B (sv) 1976-03-24 1977-12-12 Stahl Karl Erik Forfarande for forbettring av ett elektrodynamiskt hogtalarelements basatergivning, samt anordning for utforande av forfarandet
US4180706A (en) 1976-04-30 1979-12-25 Bang & Olufsen A/S Loudspeaker motional feedback system
GB1568026A (en) 1978-01-27 1980-05-21 Philips Nv Electrodynamic loudspeaker
US4276443A (en) 1979-08-17 1981-06-30 Meyers Stanley T Sound reproducing system utilizing motional feedback and velocity-frequency equalization
US4550430A (en) 1981-02-20 1985-10-29 Meyers Stanley T Sound reproducing system utilizing motional feedback and an improved integrated magnetic structure
JPS58182998A (ja) 1982-04-20 1983-10-26 Pioneer Electronic Corp Ｍｆｂ型スピ−カ
US4455675A (en) 1982-04-28 1984-06-19 Bose Corporation Headphoning
US4494074A (en) 1982-04-28 1985-01-15 Bose Corporation Feedback control
GB8321810D0 (en) 1983-08-12 1983-09-14 Linn Prod Ltd Loudspeaker with notional feedback
US4573189A (en) 1983-10-19 1986-02-25 Velodyne Acoustics, Inc. Loudspeaker with high frequency motional feedback
NL8501719A (nl) 1985-06-14 1987-01-02 Philips Nv Basreflex luidsprekersysteem.
US4727584A (en) 1986-02-14 1988-02-23 Velodyne Acoustics, Inc. Loudspeaker with motional feedback
NL8601772A (nl) 1986-07-08 1988-02-01 Philips Nv Inrichting voor het omzetten van een elektrisch signaal in een akoestisch signaal, voorzien van een elektrostatische omzettereenheid.
US4821328A (en) 1986-10-24 1989-04-11 Stanislaw Drozdowski Sound reproducing system with Hall effect motional feedback
US5031221A (en) 1987-06-02 1991-07-09 Yamaha Corporation Dynamic loudspeaker driving apparatus
JPS6490700A (en) 1987-09-30 1989-04-07 Yamaha Corp Motional load driving circuit
US5009281A (en) 1988-03-10 1991-04-23 Yamaha Corporation Acoustic apparatus
EP0334238B1 (en) 1988-03-25 1994-11-30 Yamaha Corporation Acoustic Apparatus
EP0340435A3 (en) 1988-04-01 1991-04-24 Yamaha Corporation Acoustic apparatus
JPH01272298A (ja) 1988-04-25 1989-10-31 Yamaha Corp 駆動装置
US5109422A (en) 1988-09-28 1992-04-28 Yamaha Corporation Acoustic apparatus
JPH0737369Y2 (ja) * 1988-10-17 1995-08-23 ヤマハ株式会社 駆動装置の温度補償回路
JPH0322798A (ja) * 1989-06-20 1991-01-31 Yamaha Corp パワーアンプ用アダプタ
JP2535232B2 (ja) 1989-12-16 1996-09-18 シャープ株式会社 音声出力回路
US5280543A (en) 1989-12-26 1994-01-18 Yamaha Corporation Acoustic apparatus and driving apparatus constituting the same
JP3035943B2 (ja) * 1989-12-26 2000-04-24 ヤマハ株式会社 音響装置およびこのような音響装置を構成するための駆動装置
US5197104A (en) 1991-04-18 1993-03-23 Josef Lakatos Electrodynamic loudspeaker with electromagnetic impedance sensor coil
US5394478A (en) 1992-11-18 1995-02-28 Advanced Composite Audio, Inc. Low frequency sound generation system for use in vehicular passenger compartments
JP3187599B2 (ja) 1993-03-17 2001-07-11 川澄化学工業株式会社 医療用バッグ及びその製造方法
JP3136853B2 (ja) 1993-08-16 2001-02-19 ソニー株式会社 スピーカユニット
US5408533A (en) 1993-12-13 1995-04-18 Reiffin; Martin Motional feedback speaker system with radially polarized magnet and underhung voice-coil
US5493620A (en) 1993-12-20 1996-02-20 Pulfrey; Robert E. High fidelity sound reproducing system
US5542001A (en) 1994-12-06 1996-07-30 Reiffin; Martin Smart amplifier for loudspeaker motional feedback derived from linearization of a nonlinear motion responsive signal
US5764781A (en) 1995-12-12 1998-06-09 Ding; Chih-Shun Speaker and amplifier system
US6104817A (en) 1996-12-12 2000-08-15 Ding; Chih-Shun Speaker and amplifier system
US7113607B1 (en) 1998-09-03 2006-09-26 Mullins Joe H Low frequency feedback controlled audio system
JP3296311B2 (ja) * 1998-12-25 2002-06-24 ヤマハ株式会社 音響装置
JP2001157293A (ja) 1999-12-01 2001-06-08 Matsushita Electric Ind Co Ltd スピーカ装置
CA2408045A1 (en) 2001-10-16 2003-04-16 Audio Products International Corp. Loudspeaker with large displacement motional feedback
US7053705B2 (en) * 2003-12-22 2006-05-30 Tymphany Corporation Mixed-mode (current-voltage) audio amplifier
JP2007081815A (ja) * 2005-09-14 2007-03-29 Matsushita Electric Ind Co Ltd スピーカ装置
JP4519041B2 (ja) * 2005-09-20 2010-08-04 ローランド株式会社 楽器用スピーカ装置
JP4721859B2 (ja) * 2005-10-13 2011-07-13 シャープ株式会社 オーディオアンプ
US20070154021A1 (en) 2005-12-22 2007-07-05 Mikael Bohman Digital feedback to improve the sound reproduction of an electro-dynamic loudspeaker
US8155348B2 (en) * 2008-09-30 2012-04-10 David William Bray Post phase-inverter volume control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943956A (en) * 1988-04-25 1990-07-24 Yamaha Corporation Driving apparatus
CN200959659Y (zh) * 2005-12-29 2007-10-10 颜怀伟 阻抗与功率可变式扬声器及其功放与控制电路

Also Published As

Publication number Publication date
CN101895804A (zh) 2010-11-24
EP2237569B1 (en) 2012-06-06
EP2237569A1 (en) 2010-10-06
JP5010006B2 (ja) 2012-08-29
US20100246848A1 (en) 2010-09-30
JP2010246115A (ja) 2010-10-28
US8401207B2 (en) 2013-03-19

Similar Documents

Publication Publication Date Title
CN101895804B (zh) 动反馈系统
US10165361B2 (en) System and method for loudspeaker protection
US10056066B2 (en) Active noise reduction
JP4917650B2 (ja) 合成された正のインピーダンスを有するオーディオシステム
CN106549644A (zh) 放大器系统
CN101083455B (zh) 电子调音装置、电子音量控制方法和使用它们的电子设备
Self The Design of Active Crossovers
CN108540905B (zh) 分频器电路及分频器
KR102224663B1 (ko) 전압 구동 특성과 스피커 선형 왜곡 보상 기능을 제공하는 전류 구동 방식의 앰프 시스템
CN102025325B (zh) 音频放大器和使用它的电子设备
CN108600916B (zh) 音响电路及系统
US5625698A (en) Loudspeaker and design methodology
US9225305B2 (en) System and methods for applying bass compensation
KR20190008512A (ko) 스피커 편위의 퍼지 논리 피드백 제어 시스템 및 방법
TW200910856A (en) Equalizer system and filtering method
US20120076324A1 (en) System and methods for applying bass compensation in an automobile
TW202121836A (zh) D類放大器電路及音訊放大方法
WO2016100237A1 (en) Ultra-low distortion integrated loudspeaker system
LU100989B1 (en) Method for improving sound reproduction of low frequencies and apparatus therefore
WO2010000807A2 (en) A system and a method for configuring af loudspeaker system
JP2002359525A (ja) オーディオ電力増幅回路
Saranpää et al. Design of analog audio filters for individual speaker models in a distributed system
Joshi et al. Hybrid controller for mid‐power audio application
KR101363302B1 (ko) 부궤환 회로 적용 음향증폭기
JPS63276311A (ja) ト−ンコントロ−ル回路

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant