IT1236681B - 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: IT1236681B
Authority: IT; Italy
Prior art keywords: detection circuit; audio devices; final stages; distortion detection; distortion
Prior art date: 1989-11-08

Application number

IT02230689A

Other languages

English (en)

Other versions

IT8922306A1 (it

IT8922306A0 (it

Inventor

Edoardo Botti

Fabrizio Stefani

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.)

1989-11-08

Filing date

1989-11-08

Publication date

1993-03-26

1989-11-08 Application filed by Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics

1989-11-08 Priority to IT02230689A priority Critical patent/IT1236681B/it

1989-11-08 Publication of IT8922306A0 publication Critical patent/IT8922306A0/it

1990-11-01 Priority to US07/607,949 priority patent/US5068620A/en

1990-11-02 Priority to DE69028482T priority patent/DE69028482T2/de

1990-11-02 Priority to EP90121025A priority patent/EP0427135B1/en

1990-11-07 Priority to JP2302289A priority patent/JP3068642B2/ja

1990-11-08 Priority to KR1019900018053A priority patent/KR100196089B1/ko

1991-05-08 Publication of IT8922306A1 publication Critical patent/IT8922306A1/it

1993-03-26 Application granted granted Critical

1993-03-26 Publication of IT1236681B publication Critical patent/IT1236681B/it

Links

238000001514 detection method Methods 0.000 title 1

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
- H03F1/34—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
- 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
DE69028482T DE69028482T2 (de)	1989-11-08	1990-11-02	Ausgangsverzerrungsmessschaltung, insbesondere für Ausgangsstufen von Tonsignaleinrichtungen
EP90121025A EP0427135B1 (en)	1989-11-08	1990-11-02	Circuit for sensing output distortion, in particular of final stages of audio devices
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 IT8922306A0 (it)	1989-11-08
IT8922306A1 IT8922306A1 (it)	1991-05-08
IT1236681B true 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 (11)

* 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
RU2274868C2 (ru) *	2004-05-19	2006-04-20	Гарри Романович Аванесян	Способ и устройство для оценки и индикации искажений выходного сигнала усилителей звуковой частоты (индикация перегрузки)
EP2056453A3 (en) *	2007-10-03	2016-10-26	Yamaha Corporation	Amplifier
KR20140026609A (ko) *	2011-12-26	2014-03-05	미쓰비시덴키 가부시키가이샤	아날로그 피드백 증폭기
US8712066B1 (en)	2013-03-14	2014-04-29	Rockford Corporation	Audio signal clip detection

Family Cites Families (4)

* 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.
US4742312A (en) *	1987-05-22	1988-05-03	Delco Electronics Corporation	Power limiting audio amplifier temperature protection circuit

1989
- 1989-11-08 IT IT02230689A patent/IT1236681B/it active IP Right Grant
1990
- 1990-11-01 US US07/607,949 patent/US5068620A/en not_active Expired - Lifetime
- 1990-11-02 EP EP90121025A patent/EP0427135B1/en not_active Expired - Lifetime
- 1990-11-02 DE DE69028482T patent/DE69028482T2/de not_active Expired - Fee Related
- 1990-11-07 JP JP2302289A patent/JP3068642B2/ja not_active Expired - Fee Related
- 1990-11-08 KR KR1019900018053A patent/KR100196089B1/ko not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US5068620A (en)	1991-11-26
IT8922306A1 (it)	1991-05-08
KR100196089B1 (ko)	1999-06-15
EP0427135A2 (en)	1991-05-15
EP0427135A3 (en)	1991-09-11
JP3068642B2 (ja)	2000-07-24
IT8922306A0 (it)	1989-11-08
JPH03172006A (ja)	1991-07-25
DE69028482T2 (de)	1997-01-30
EP0427135B1 (en)	1996-09-11
DE69028482D1 (de)	1996-10-17
KR910010831A (ko)	1991-06-29

Legal Events

Date	Code	Title	Description
1993-03-26	0001	Granted
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19971129

Publication	Publication Date	Title
DE3889649D1 (de)	1994-06-23	Ätzverfahren und -gerät.
DE69008228D1 (de)	1994-05-26	Plasmabearbeitungsvorrichtung.
DE69010610D1 (de)	1994-08-18	Zweistufen- Positioniervorrichtung.
DE59007218D1 (de)	1994-10-27	Magnetgelagerte Vakuumpumpe.
DE69023434D1 (de)	1995-12-14	Videosignalverarbeitungsgerät.
DE69005458D1 (de)	1994-02-03	Verdampfer und kondensator.
DE69021595D1 (de)	1995-09-21	Wiedergabegerät.
NO910535L (no)	1991-08-14	Talesignal-behandlingsanordning.
DE69021431D1 (de)	1995-09-14	Bewegungsabhängige Videosignalverarbeitung.
DE59100757D1 (de)	1994-02-10	Zweistufige Kryopumpe.
NO900866L (no)	1990-08-27	Kopolymerblandinger og avendelse av slike.
IT1236681B (it)	1993-03-26	Circuito di rilevazione della distorsione d'uscita, in particolare di stadi finali di dispositivi audio.
DE69010546D1 (de)	1994-08-18	Hochfrequenz-Halbleiteranordnung.
DE69029838D1 (de)	1997-03-13	Eine Verstärkerschaltung
NO890904D0 (no)	1989-03-02	Video-terminal.
DE68920294D1 (de)	1995-02-09	Vakuumschaltröhre.
DE69013720D1 (de)	1994-12-08	Vakuumschalter.
DE69016829D1 (de)	1995-03-23	Leseverstärkerschaltung.
DE69024451D1 (de)	1996-02-08	Hochmolekulare polytriazine
DE58908160D1 (de)	1994-09-15	Vakuumschaltkammer.
DE69008874D1 (de)	1994-06-23	Unterdruck-Aufnahmevorrichtung.
DE69024031D1 (de)	1996-01-18	Hochleistungshalbleiterbauelement.
DE69003834D1 (de)	1993-11-18	Magnetische Walzvorrichtung.
DE69022272D1 (de)	1995-10-19	Hochfrequenz-Limiterschaltung.
DE69004439D1 (de)	1993-12-16	Lautsprecheranschlussklemme.