FR2529035A1 - Dispositif d'amplification d'audiofrequences permettant un accroissement de la puissance moyenne d'ecoute - Google Patents

Dispositif d'amplification d'audiofrequences permettant un accroissement de la puissance moyenne d'ecoute Download PDF

Info

Publication number
FR2529035A1
FR2529035A1 FR8310097A FR8310097A FR2529035A1 FR 2529035 A1 FR2529035 A1 FR 2529035A1 FR 8310097 A FR8310097 A FR 8310097A FR 8310097 A FR8310097 A FR 8310097A FR 2529035 A1 FR2529035 A1 FR 2529035A1
Authority
FR
France
Prior art keywords
amplifier
power
audio frequency
amplification device
frequency amplification
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.)
Pending
Application number
FR8310097A
Other languages
English (en)
French (fr)
Inventor
Paolo Antoniazzi
Carlo Alberto Grilli
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 SRL
Original Assignee
ATES Componenti Elettronici SpA
SGS ATES Componenti Elettronici SpA
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 ATES Componenti Elettronici SpA, SGS ATES Componenti Elettronici SpA filed Critical ATES Componenti Elettronici SpA
Publication of FR2529035A1 publication Critical patent/FR2529035A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
FR8310097A 1982-06-17 1983-06-17 Dispositif d'amplification d'audiofrequences permettant un accroissement de la puissance moyenne d'ecoute Pending FR2529035A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21893/82A IT1190872B (it) 1982-06-17 1982-06-17 Sistema di amplificazione audio con incremento della potenza media di ascolto

Publications (1)

Publication Number Publication Date
FR2529035A1 true FR2529035A1 (fr) 1983-12-23

Family

ID=11188326

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8310097A Pending FR2529035A1 (fr) 1982-06-17 1983-06-17 Dispositif d'amplification d'audiofrequences permettant un accroissement de la puissance moyenne d'ecoute

Country Status (5)

Country Link
JP (1) JPS595711A (it)
DE (1) DE3321293A1 (it)
FR (1) FR2529035A1 (it)
GB (1) GB2123231B (it)
IT (1) IT1190872B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594609A1 (fr) * 1986-02-18 1987-08-21 Grenet Edouard Dispositif de correction automatique des variations de volume sonore d'un recepteur de radiodiffusion ou de television
EP0632587A2 (en) * 1993-07-02 1995-01-04 Ford Motor Company Distortion-free limiter for a power amplifier

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1201797A (en) * 1983-01-20 1986-03-11 Frederick H.K. Rambow Circuit for controlling the magnitude of amplification of signals produced by a borehole televiewer
US6133792A (en) * 1998-09-17 2000-10-17 Telefonakteibolaget Lm Ericsson Method and apparatus for preventing power amplifier saturation
US6828859B2 (en) 2001-08-17 2004-12-07 Silicon Laboratories, Inc. Method and apparatus for protecting devices in an RF power amplifier
EP1499014B1 (en) * 2003-07-15 2010-03-17 STMicroelectronics S.r.l. A method for automatic gain control, for instance in a telecommunication system, device and computer program therefor
EP3930185A1 (en) * 2020-06-26 2021-12-29 NXP USA, Inc. Amplifier circuit with an output limiter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770984A (en) * 1971-03-03 1973-11-06 Harris Intertype Corp Fast recovery low distortion limiter circuit
US4048573A (en) * 1976-10-15 1977-09-13 Mcintosh Laboratory, Incorporated Amplifier improvements for limiting clipping
DE2403799B2 (de) * 1974-01-26 1979-07-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verstärkerschaltung mit selbsttätiger Verstärkungsregelung
US4233566A (en) * 1978-10-23 1980-11-11 Technical Audio Products Corporation Distortion free power limiting and clipping prevention circuit
DE3027715A1 (de) * 1980-07-19 1982-02-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur selbsttaetigen regelung oder begrenzung der dynamik

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1313261A (fr) * 1961-11-15 1962-12-28 Thomson Houston Comp Francaise Perfectionnements aux systèmes de régulation
GB1056265A (en) * 1962-10-15 1967-01-25 Shipton Electronics Ltd Improvements in or relating to automatic gain control circuits
CH462894A (fr) * 1966-09-29 1968-09-30 Eresa S A Dispositif de réglage automatique de gain d'un amplificateur audio
BE742465A (it) * 1968-12-11 1970-05-14
CA1034873A (en) * 1974-06-24 1978-07-18 Masahiro Chikatsu Limited circuit for recording amplifier
AT348590B (de) * 1975-09-26 1979-02-26 Grundig Emv Schaltungsanordnung zur ausschaltung des einflusses kurzer stoerimpulse bei automatischer pegelregelung
GB1592575A (en) * 1976-09-15 1981-07-08 Siemens Ag Level-controlled amplifier or attenuator circuits
JPS5515857U (it) * 1978-07-17 1980-01-31
GB2059202B (en) * 1979-09-14 1983-11-02 Plessey Co Ltd Digitally controlled wide range automatic gain control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770984A (en) * 1971-03-03 1973-11-06 Harris Intertype Corp Fast recovery low distortion limiter circuit
DE2403799B2 (de) * 1974-01-26 1979-07-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verstärkerschaltung mit selbsttätiger Verstärkungsregelung
US4048573A (en) * 1976-10-15 1977-09-13 Mcintosh Laboratory, Incorporated Amplifier improvements for limiting clipping
US4233566A (en) * 1978-10-23 1980-11-11 Technical Audio Products Corporation Distortion free power limiting and clipping prevention circuit
DE3027715A1 (de) * 1980-07-19 1982-02-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur selbsttaetigen regelung oder begrenzung der dynamik

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594609A1 (fr) * 1986-02-18 1987-08-21 Grenet Edouard Dispositif de correction automatique des variations de volume sonore d'un recepteur de radiodiffusion ou de television
EP0632587A2 (en) * 1993-07-02 1995-01-04 Ford Motor Company Distortion-free limiter for a power amplifier
EP0632587A3 (en) * 1993-07-02 1996-01-17 Ford Motor Co Distortion-free limiter for power amplifier.

Also Published As

Publication number Publication date
DE3321293A1 (de) 1984-01-05
JPS595711A (ja) 1984-01-12
GB8315613D0 (en) 1983-07-13
IT1190872B (it) 1988-02-24
GB2123231B (en) 1986-04-16
GB2123231A (en) 1984-01-25
IT8221893A0 (it) 1982-06-17

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