IT8922306A0 - Circuito di rilevazione della distorsione d'uscita, in particolare di stadi finali di dispositivi audio - Google Patents

Circuito di rilevazione della distorsione d'uscita, in particolare di stadi finali di dispositivi audio

Info

Publication number
IT8922306A0
IT8922306A0 IT22306A IT2230689A IT8922306A0 IT 8922306 A0 IT8922306 A0 IT 8922306A0 IT 22306 A IT22306 A IT 22306A IT 2230689 A IT2230689 A IT 2230689A IT 8922306 A0 IT8922306 A0 IT 8922306A0
Authority
IT
Italy
Prior art keywords
detection circuit
audio devices
final stages
distortion detection
output distortion
Prior art date
Application number
IT22306A
Other languages
English (en)
Other versions
IT1236681B (it
IT8922306A1 (it
Inventor
Edoardo Botti
Fabrizio Stefani
Daniela Nebuloni
Original Assignee
Sgs Thomson Microelectronics
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 Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics
Priority to IT02230689A priority Critical patent/IT1236681B/it
Publication of IT8922306A0 publication Critical patent/IT8922306A0/it
Priority to US07/607,949 priority patent/US5068620A/en
Priority to EP90121025A priority patent/EP0427135B1/en
Priority to DE69028482T priority patent/DE69028482T2/de
Priority to JP2302289A priority patent/JP3068642B2/ja
Priority to KR1019900018053A priority patent/KR100196089B1/ko
Publication of IT8922306A1 publication Critical patent/IT8922306A1/it
Application granted granted Critical
Publication of IT1236681B publication Critical patent/IT1236681B/it

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
    • H03F1/32—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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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
    • H03F1/3217—Modifications of amplifiers to reduce non-linear distortion in single ended push-pull amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
IT02230689A 1989-11-08 1989-11-08 Circuito di rilevazione della distorsione d'uscita, in particolare di stadi finali di dispositivi audio. IT1236681B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT02230689A IT1236681B (it) 1989-11-08 1989-11-08 Circuito di rilevazione della distorsione d'uscita, in particolare di stadi finali di dispositivi audio.
US07/607,949 US5068620A (en) 1989-11-08 1990-11-01 Circuit for securing output distortion, in particular of final stages of audio devices
EP90121025A EP0427135B1 (en) 1989-11-08 1990-11-02 Circuit for sensing output distortion, in particular of final stages of audio devices
DE69028482T DE69028482T2 (de) 1989-11-08 1990-11-02 Ausgangsverzerrungsmessschaltung, insbesondere für Ausgangsstufen von Tonsignaleinrichtungen
JP2302289A JP3068642B2 (ja) 1989-11-08 1990-11-07 出力の歪みを検知するための回路
KR1019900018053A KR100196089B1 (ko) 1989-11-08 1990-11-08 오디오 장치의 마지막 단의 출력왜곡을 감지하기 위한 회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02230689A IT1236681B (it) 1989-11-08 1989-11-08 Circuito di rilevazione della distorsione d'uscita, in particolare di stadi finali di dispositivi audio.

Publications (3)

Publication Number Publication Date
IT8922306A0 true IT8922306A0 (it) 1989-11-08
IT8922306A1 IT8922306A1 (it) 1991-05-08
IT1236681B IT1236681B (it) 1993-03-26

Family

ID=11194454

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02230689A IT1236681B (it) 1989-11-08 1989-11-08 Circuito di rilevazione della distorsione d'uscita, in particolare di stadi finali di dispositivi audio.

Country Status (6)

Country Link
US (1) US5068620A (it)
EP (1) EP0427135B1 (it)
JP (1) JP3068642B2 (it)
KR (1) KR100196089B1 (it)
DE (1) DE69028482T2 (it)
IT (1) IT1236681B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5469510A (en) * 1993-06-28 1995-11-21 Ford Motor Company Arbitration adjustment for acoustic reproduction systems
US5442316A (en) * 1994-06-30 1995-08-15 Delco Electronics Corporation Temperature compensated and supply independent clipping distortion indicator
US6081140A (en) * 1998-02-06 2000-06-27 Texas Instruments, Inc. Control circuit with both positive and negative sensing
US6286127B1 (en) * 1998-02-06 2001-09-04 Texas Instruments Incorporated Control circuit having multiple functions set by a single programmable terminal
US6225972B1 (en) 1998-08-13 2001-05-01 Snap-On Tools Company Oscilloscope display with rail indicator
EP1164695B1 (en) * 2000-06-13 2006-09-06 STMicroelectronics S.r.l. Circuit for detecting distortion in an amplifier, in particular an audio amplifier
US6639463B1 (en) * 2000-08-24 2003-10-28 Lucent Technologies Inc. Adaptive power amplifier system and method
EP2056453A3 (en) * 2007-10-03 2016-10-26 Yamaha Corporation Amplifier
WO2013098874A1 (ja) * 2011-12-26 2013-07-04 三菱電機株式会社 アナログフィードバック増幅器
US8712066B1 (en) 2013-03-14 2014-04-29 Rockford Corporation Audio signal clip detection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006428A (en) * 1976-01-08 1977-02-01 John Fluke Mfg. Co., Inc. Amplifier circuit having integral means for detecting and preventing non-linear operation
US4048573A (en) * 1976-10-15 1977-09-13 Mcintosh Laboratory, Incorporated Amplifier improvements for limiting clipping
NL7713501A (nl) * 1977-12-07 1979-06-11 Philips Nv Versterker bevattende een eerste en een tweede versterkerelement.
JPS5738008A (en) * 1980-08-19 1982-03-02 Hitachi Ltd Output amplifier
US4742312A (en) * 1987-05-22 1988-05-03 Delco Electronics Corporation Power limiting audio amplifier temperature protection circuit

Also Published As

Publication number Publication date
JP3068642B2 (ja) 2000-07-24
DE69028482D1 (de) 1996-10-17
EP0427135A3 (en) 1991-09-11
IT1236681B (it) 1993-03-26
KR100196089B1 (ko) 1999-06-15
IT8922306A1 (it) 1991-05-08
DE69028482T2 (de) 1997-01-30
EP0427135B1 (en) 1996-09-11
KR910010831A (ko) 1991-06-29
EP0427135A2 (en) 1991-05-15
US5068620A (en) 1991-11-26
JPH03172006A (ja) 1991-07-25

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971129