WO2006106231A3 - Amplificateur à double asservissement et enceinte associee - Google Patents

Amplificateur à double asservissement et enceinte associee Download PDF

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Publication number
WO2006106231A3
WO2006106231A3 PCT/FR2006/000752 FR2006000752W WO2006106231A3 WO 2006106231 A3 WO2006106231 A3 WO 2006106231A3 FR 2006000752 W FR2006000752 W FR 2006000752W WO 2006106231 A3 WO2006106231 A3 WO 2006106231A3
Authority
WO
WIPO (PCT)
Prior art keywords
inverse feedback
amplifier
speaker
current
feedback control
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.)
Ceased
Application number
PCT/FR2006/000752
Other languages
English (en)
Other versions
WO2006106231A2 (fr
Inventor
Nicolas Bailly
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.)
OPAZ
Original Assignee
OPAZ
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 OPAZ filed Critical OPAZ
Priority to EP06743637A priority Critical patent/EP1878302A2/fr
Publication of WO2006106231A2 publication Critical patent/WO2006106231A2/fr
Publication of WO2006106231A3 publication Critical patent/WO2006106231A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H04R3/04—Circuits for transducers for correcting frequency response

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

La présente invention concerne le domaine des amplificateurs de signaux analogiques, et en particulier le domaine des amplificateurs audio. L'invention concerne une enceinte acoustique associée à un haut-parleur et à un amplificateur analogique de classe AB, ledit amplificateur comprenant un circuit de type pont de vitesse comportant des moyens de contre-réaction lesdits moyens de contre-réaction comprenant une contre-réaction en tension et une contre-réaction en courant, ladite contre- réaction en courant étant constituée pour partie dudit haut- parleur le rapport entre la contre-réaction en tension et la contre-réaction en courant étant prédéterminé, l'enceinte comprenant en outre un filtre destiné à linéariser la réponse de ladite enceinte, en sortie dudit amplificateur, en fonction dudit rapport de contre-réaction en tension et en courant.
PCT/FR2006/000752 2005-04-05 2006-04-05 Amplificateur à double asservissement et enceinte associee Ceased WO2006106231A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06743637A EP1878302A2 (fr) 2005-04-05 2006-04-05 Amplificateur a double asservissement et enceinte associee

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0503358A FR2884077B1 (fr) 2005-04-05 2005-04-05 Amplificateur a double asservissement et enceinte associee
FR0503358 2005-04-05

Publications (2)

Publication Number Publication Date
WO2006106231A2 WO2006106231A2 (fr) 2006-10-12
WO2006106231A3 true WO2006106231A3 (fr) 2006-11-23

Family

ID=35427716

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2006/000752 Ceased WO2006106231A2 (fr) 2005-04-05 2006-04-05 Amplificateur à double asservissement et enceinte associee

Country Status (3)

Country Link
EP (1) EP1878302A2 (fr)
FR (1) FR2884077B1 (fr)
WO (1) WO2006106231A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201712391D0 (en) 2017-08-01 2017-09-13 Turner Michael James Controller for an electromechanical transducer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883414A (ja) * 1981-11-12 1983-05-19 Matsushita Electric Ind Co Ltd 電圧電流帰還増幅器
US5068903A (en) * 1988-10-28 1991-11-26 Alcatel N.V. Method of and arrangement for linearizing the frequency response of a loudspeaker system
US5786731A (en) * 1996-03-29 1998-07-28 National Semiconductor Corporation Class AB complementary transistor output stage having large output swing and large output drive
US6255909B1 (en) * 2000-11-02 2001-07-03 Texas Instruments Incorporated Ultra low voltage CMOS class AB power amplifier with parasitic capacitance internal compensation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883414A (ja) * 1981-11-12 1983-05-19 Matsushita Electric Ind Co Ltd 電圧電流帰還増幅器
US5068903A (en) * 1988-10-28 1991-11-26 Alcatel N.V. Method of and arrangement for linearizing the frequency response of a loudspeaker system
US5786731A (en) * 1996-03-29 1998-07-28 National Semiconductor Corporation Class AB complementary transistor output stage having large output swing and large output drive
US6255909B1 (en) * 2000-11-02 2001-07-03 Texas Instruments Incorporated Ultra low voltage CMOS class AB power amplifier with parasitic capacitance internal compensation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 178 (E - 191) 6 August 1983 (1983-08-06) *

Also Published As

Publication number Publication date
WO2006106231A2 (fr) 2006-10-12
EP1878302A2 (fr) 2008-01-16
FR2884077A1 (fr) 2006-10-06
FR2884077B1 (fr) 2007-06-15

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