DE69406108T2 - Niederfrequenzverstärker - Google Patents

Niederfrequenzverstärker

Info

Publication number
DE69406108T2
DE69406108T2 DE69406108T DE69406108T DE69406108T2 DE 69406108 T2 DE69406108 T2 DE 69406108T2 DE 69406108 T DE69406108 T DE 69406108T DE 69406108 T DE69406108 T DE 69406108T DE 69406108 T2 DE69406108 T2 DE 69406108T2
Authority
DE
Germany
Prior art keywords
low frequency
frequency amplifier
amplifier
low
frequency
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
DE69406108T
Other languages
English (en)
Other versions
DE69406108D1 (de
Inventor
Edoardo Botti
Giorgio Chiozzi
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
STMicroelectronics SRL
SGS Thomson Microelectronics SRL
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 SRL, SGS Thomson Microelectronics SRL filed Critical STMicroelectronics SRL
Publication of DE69406108D1 publication Critical patent/DE69406108D1/de
Application granted granted Critical
Publication of DE69406108T2 publication Critical patent/DE69406108T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
DE69406108T 1994-04-15 1994-04-15 Niederfrequenzverstärker Expired - Fee Related DE69406108T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94830179A EP0678975B1 (de) 1994-04-15 1994-04-15 Niederfrequenzverstärker

Publications (2)

Publication Number Publication Date
DE69406108D1 DE69406108D1 (de) 1997-11-13
DE69406108T2 true DE69406108T2 (de) 1998-02-12

Family

ID=8218425

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69406108T Expired - Fee Related DE69406108T2 (de) 1994-04-15 1994-04-15 Niederfrequenzverstärker

Country Status (4)

Country Link
US (1) US5663681A (de)
EP (1) EP0678975B1 (de)
JP (1) JP2648126B2 (de)
DE (1) DE69406108T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10215130A (ja) * 1997-01-30 1998-08-11 Mitsubishi Electric Corp 増幅装置及び送信出力制御装置
DE69727934D1 (de) * 1997-10-31 2004-04-08 St Microelectronics Srl Integrierter parallele Verbindungen erlaubender Leistungsverstärker
WO2000055967A1 (fr) * 1999-03-15 2000-09-21 Matsushita Electric Industrial Co., Ltd. Dispositif a semi-conducteur et dispositif de communication
GB0102637D0 (en) * 2001-02-01 2001-03-21 Sony Uk Ltd Elimination of noise during power supply switching in an audio amplifier circuit
DE60224985T2 (de) 2002-05-10 2009-01-29 Texas Instruments Inc., Dallas Verfahren und Vorrichtung zum Unterbinden von Einschaltgeräuschen am Ausgang eines Funktelefonhörers
US6838942B1 (en) * 2003-07-17 2005-01-04 Standard Microsystems Corporation Efficient class-G amplifier with wide output voltage swing
DE102006043746A1 (de) * 2006-09-13 2008-03-27 Micronas Gmbh Schaltungsanordnung zur Unterdrückung von Einschaltgeräuschen
KR101338015B1 (ko) * 2012-07-27 2013-12-09 숭실대학교산학협력단 스택 구조를 가지는 전력 증폭기
US11909357B2 (en) * 2019-12-02 2024-02-20 Smarter Microelectronics (Guang Zhou) Co., Ltd. Amplifier and amplification method

Family Cites Families (9)

* 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
IT1213158B (it) * 1984-04-20 1989-12-14 Ates Componenti Elettron Circuito di controllo dell'accensione per amplificatore audio.
NL8403819A (nl) * 1984-12-17 1986-07-16 Philips Nv Schakelinrichting voor het onderdrukken van een signaal.
JP2547781B2 (ja) * 1987-07-13 1996-10-23 株式会社東芝 Ｂｔｌ電力増幅回路
IT1217773B (it) * 1988-06-02 1990-03-30 Sgs Thomson Microelectronics Circuito di ammutolimento per amplificatori audio
US5199079A (en) * 1991-05-21 1993-03-30 Thomson Consumer Electronics, Inc. Supply voltage responsive audible transient (POP) suppression arrangement
JP2693058B2 (ja) * 1991-06-29 1997-12-17 三洋電機株式会社 増幅回路
US5166983A (en) * 1991-07-22 1992-11-24 Motorola, Inc. Mute circuit for audio amplifiers
DE69231613T2 (de) * 1992-05-22 2001-05-31 St Microelectronics Srl Steuerschaltung zum Ein- und Ausschalten eines Audioverstärkers

Also Published As

Publication number Publication date
EP0678975B1 (de) 1997-10-08
EP0678975A1 (de) 1995-10-25
US5663681A (en) 1997-09-02
JP2648126B2 (ja) 1997-08-27
JPH0846462A (ja) 1996-02-16
DE69406108D1 (de) 1997-11-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee