DE102011054060A8 - Audioverstärker - Google Patents

Audioverstärker Download PDF

Info

Publication number
DE102011054060A8
DE102011054060A8 DE102011054060A DE102011054060A DE102011054060A8 DE 102011054060 A8 DE102011054060 A8 DE 102011054060A8 DE 102011054060 A DE102011054060 A DE 102011054060A DE 102011054060 A DE102011054060 A DE 102011054060A DE 102011054060 A8 DE102011054060 A8 DE 102011054060A8
Authority
DE
Germany
Prior art keywords
audio amplifier
amplifier
audio
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
DE102011054060A
Other languages
English (en)
Other versions
DE102011054060A1 (de
DE102011054060B4 (de
Inventor
Hermann Vogt
Sven Mörtel
Claus Renftle
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.)
D&B Audiotechnik GmbH and Co KG
Original Assignee
D&B Audiotechnik GmbH
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 D&B Audiotechnik GmbH filed Critical D&B Audiotechnik GmbH
Priority to DE102011054060.1A priority Critical patent/DE102011054060B4/de
Priority to GB201215805A priority patent/GB2498602B8/en
Priority to US13/628,431 priority patent/US9071212B2/en
Publication of DE102011054060A1 publication Critical patent/DE102011054060A1/de
Publication of DE102011054060A8 publication Critical patent/DE102011054060A8/de
Application granted granted Critical
Publication of DE102011054060B4 publication Critical patent/DE102011054060B4/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
    • 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/008—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general of digital or coded signals
DE102011054060.1A 2011-09-29 2011-09-29 Audioverstärker Active DE102011054060B4 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102011054060.1A DE102011054060B4 (de) 2011-09-29 2011-09-29 Audioverstärker
GB201215805A GB2498602B8 (en) 2011-09-29 2012-09-05 Audio amplifier
US13/628,431 US9071212B2 (en) 2011-09-29 2012-09-27 Audio amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011054060.1A DE102011054060B4 (de) 2011-09-29 2011-09-29 Audioverstärker

Publications (3)

Publication Number Publication Date
DE102011054060A1 DE102011054060A1 (de) 2013-04-04
DE102011054060A8 true DE102011054060A8 (de) 2013-06-06
DE102011054060B4 DE102011054060B4 (de) 2017-09-21

Family

ID=47136940

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102011054060.1A Active DE102011054060B4 (de) 2011-09-29 2011-09-29 Audioverstärker

Country Status (3)

Country Link
US (1) US9071212B2 (de)
DE (1) DE102011054060B4 (de)
GB (1) GB2498602B8 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9154095B2 (en) 2013-03-15 2015-10-06 Bose Corporation Boost-on-demand amplifier
US9184705B2 (en) * 2013-03-15 2015-11-10 Bose Corporation Feedback mechanism for boost-on-demand amplifiers
WO2015073290A1 (en) * 2013-11-13 2015-05-21 Bose Corporation Feedback mechanism for boost-on-demand amplifiers
US9209767B1 (en) 2014-05-28 2015-12-08 Motorola Solutions, Inc. Input current limited power supply and audio power amplifier for high power reproduction of nondeterministic signals
JP6651835B2 (ja) * 2015-03-13 2020-02-19 ヤマハ株式会社 電力増幅器
US9794687B2 (en) * 2015-09-28 2017-10-17 Cirrus Logic, Inc. Loudspeaker protection circuitry and methods
GB2573601B (en) * 2017-02-28 2020-09-16 Cirrus Logic Int Semiconductor Ltd Amplifiers
CN116389976B (zh) * 2021-08-19 2023-12-01 荣耀终端有限公司 提高外放声音效果的方法及相关装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536306A1 (de) 1985-10-11 1987-04-16 Dieter Flemm Elektronischer strom-konstant-verstaerker
US20020089316A1 (en) 2000-11-30 2002-07-11 Gang Liu High-efficiency H-bridge circuit and method using switched and linear stages

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173056B1 (en) * 1998-08-25 2001-01-09 Ericsson Inc. Methods for adjusting audio signals responsive to changes in a power supply level and related communications devices
US6940981B2 (en) * 2003-03-12 2005-09-06 Qsc Audio Products, Inc. Apparatus and method of limiting power applied to a loudspeaker
WO2004112245A1 (en) * 2003-06-18 2004-12-23 Nokia Corporation Dynamic range control of an audio signal and method of its operation
US7259618B2 (en) * 2005-08-25 2007-08-21 D2Audio Corporation Systems and methods for load detection and correction in a digital amplifier
US8036402B2 (en) * 2005-12-15 2011-10-11 Harman International Industries, Incorporated Distortion compensation
JP4960764B2 (ja) * 2007-05-21 2012-06-27 ティーオーエー株式会社 増幅器
US8259953B2 (en) * 2008-04-10 2012-09-04 Bang & Olufsen Icepower A/S Thermal protection of electro dynamic transducers used in loudspeaker systems
DE102008042377A1 (de) * 2008-09-25 2010-04-01 Robert Bosch Gmbh Audioverstärker mit Lastanpassung sowie Verfahren zur Lastanpassung des Audioverstärkers
US9124219B2 (en) * 2010-07-01 2015-09-01 Conexant Systems, Inc. Audio driver system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536306A1 (de) 1985-10-11 1987-04-16 Dieter Flemm Elektronischer strom-konstant-verstaerker
US20020089316A1 (en) 2000-11-30 2002-07-11 Gang Liu High-efficiency H-bridge circuit and method using switched and linear stages

Also Published As

Publication number Publication date
GB2498602B (en) 2014-06-11
GB2498602A8 (en) 2014-08-20
DE102011054060A1 (de) 2013-04-04
GB201215805D0 (en) 2012-10-24
GB2498602B8 (en) 2014-08-20
DE102011054060B4 (de) 2017-09-21
GB2498602A (en) 2013-07-24
US9071212B2 (en) 2015-06-30
US20130083947A1 (en) 2013-04-04

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Legal Events

Date Code Title Description
R012 Request for examination validly filed
R082 Change of representative

Representative=s name: PATENTANWAELTE LAMBSDORFF & LANGE, DE

Representative=s name: LAMBSDORFF & LANGE PATENTANWAELTE PARTNERSCHAF, DE

R082 Change of representative

Representative=s name: PATENTANWAELTE LAMBSDORFF & LANGE, DE

Representative=s name: LAMBSDORFF & LANGE PATENTANWAELTE PARTNERSCHAF, DE

R016 Response to examination communication
R018 Grant decision by examination section/examining division
R020 Patent grant now final
R081 Change of applicant/patentee

Owner name: D&B AUDIOTECHNIK GMBH & CO. KG, DE

Free format text: FORMER OWNER: D&B AUDIOTECHNIK GMBH, 71522 BACKNANG, DE

R082 Change of representative

Representative=s name: LAMBSDORFF & LANGE PATENTANWAELTE PARTNERSCHAF, DE

R081 Change of applicant/patentee

Owner name: D&B AUDIOTECHNIK GMBH & CO. KG, DE

Free format text: FORMER OWNER: D&B AUDIOTECHNIK VERWALTUNGS GMBH, 71522 BACKNANG, DE

R082 Change of representative

Representative=s name: LAMBSDORFF & LANGE PATENTANWAELTE PARTNERSCHAF, DE