FR2830699B1 - Circuit amplificateur audio - Google Patents

Circuit amplificateur audio

Info

Publication number
FR2830699B1
FR2830699B1 FR0112864A FR0112864A FR2830699B1 FR 2830699 B1 FR2830699 B1 FR 2830699B1 FR 0112864 A FR0112864 A FR 0112864A FR 0112864 A FR0112864 A FR 0112864A FR 2830699 B1 FR2830699 B1 FR 2830699B1
Authority
FR
France
Prior art keywords
amplifier circuit
audio amplifier
audio
circuit
amplifier
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.)
Expired - Fee Related
Application number
FR0112864A
Other languages
English (en)
Other versions
FR2830699A1 (fr
Inventor
Frederic Goutti
Christophe Forel
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.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
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 STMicroelectronics SA filed Critical STMicroelectronics SA
Priority to FR0112864A priority Critical patent/FR2830699B1/fr
Priority to US10/264,942 priority patent/US6765437B2/en
Publication of FR2830699A1 publication Critical patent/FR2830699A1/fr
Application granted granted Critical
Publication of FR2830699B1 publication Critical patent/FR2830699B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
FR0112864A 2001-10-05 2001-10-05 Circuit amplificateur audio Expired - Fee Related FR2830699B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0112864A FR2830699B1 (fr) 2001-10-05 2001-10-05 Circuit amplificateur audio
US10/264,942 US6765437B2 (en) 2001-10-05 2002-10-04 Audio amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0112864A FR2830699B1 (fr) 2001-10-05 2001-10-05 Circuit amplificateur audio

Publications (2)

Publication Number Publication Date
FR2830699A1 FR2830699A1 (fr) 2003-04-11
FR2830699B1 true FR2830699B1 (fr) 2004-12-24

Family

ID=8867983

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0112864A Expired - Fee Related FR2830699B1 (fr) 2001-10-05 2001-10-05 Circuit amplificateur audio

Country Status (2)

Country Link
US (1) US6765437B2 (fr)
FR (1) FR2830699B1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040151329A1 (en) * 2003-01-30 2004-08-05 Rupinder Judge Prevention of audio pop in a digital audio device
FR2853471B1 (fr) * 2003-04-01 2005-06-24 St Microelectronics Sa Circuit amplificateur audio
FR2866763B1 (fr) 2004-02-19 2006-05-26 St Microelectronics Sa Dispositif d'amplification audio avec circuiterie d'antipop
JP4738090B2 (ja) * 2005-08-05 2011-08-03 株式会社東芝 Ｂｔｌ方式の増幅回路
US7777569B2 (en) * 2009-01-21 2010-08-17 Texas Instruments Incorporated Anti-pop method and apparatus for class AB amplifiers
US7777574B1 (en) * 2009-01-23 2010-08-17 Texas Instruments Incorporated Closed loop ramp up for pop and click reduction in an amplifier
JP2014089087A (ja) * 2012-10-30 2014-05-15 Yamaha Corp オフセットキャンセル回路
JP2014168181A (ja) * 2013-02-28 2014-09-11 Seiko Instruments Inc オペアンプ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717204A (en) * 1980-07-04 1982-01-28 Fujitsu Ltd Transient sound prevention type power amplifying circuit
JPS5955608A (ja) * 1982-09-24 1984-03-30 Hitachi Ltd 増幅器
NL8403820A (nl) * 1984-12-17 1986-07-16 Philips Nv Schakeling voor het elimineren van stoorsignalen aan een uitgang van een elektronisch circuit bij het in- en uitschakelen van de voedingsspanning.
JP2547781B2 (ja) * 1987-07-13 1996-10-23 株式会社東芝 Ｂｔｌ電力増幅回路
US5703529A (en) * 1995-10-13 1997-12-30 National Semiconductor Corporation Amplifier circuit with reduced DC power related transients

Also Published As

Publication number Publication date
US6765437B2 (en) 2004-07-20
FR2830699A1 (fr) 2003-04-11
US20030067350A1 (en) 2003-04-10

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20090630