FR2440650A1 - Amplificateur a transistor pour orchestres - Google Patents

Amplificateur a transistor pour orchestres

Info

Publication number
FR2440650A1
FR2440650A1 FR7923057A FR7923057A FR2440650A1 FR 2440650 A1 FR2440650 A1 FR 2440650A1 FR 7923057 A FR7923057 A FR 7923057A FR 7923057 A FR7923057 A FR 7923057A FR 2440650 A1 FR2440650 A1 FR 2440650A1
Authority
FR
France
Prior art keywords
orchestras
transistor amplifier
singers
unintended
amplifiers
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.)
Withdrawn
Application number
FR7923057A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2440650A1 publication Critical patent/FR2440650A1/fr
Withdrawn legal-status Critical Current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
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/02—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general by means of diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

AMPLIFICATEUR DE PUISSANCE. LORSQUE LA TENSION D'ENTREE UE ATTEINT LA VALEUR CORRESPONDANT A LA PUISSANCE MAXIMALE DE FONCTIONNEMENT NORMAL, LES DIODES DE ZENER 5 A 9 INTERVIENNENT A LA SUITE LES UNES DES AUTRES POUR ABAISSER LA RESISTANCE OHMIQUE R2 DU CIRCUIT DE CONTRE-REACTION 4 EN REDUISANT AINSI PROGRESSIVEMENT LE COEFFICIENT D'AMPLIFICATION ET EN EVITANT DE TROP FORTES DISTORSIONS. APPLICATION AUX AMPLIFICATEURS POUR ORCHESTRES, CHANTEURS, ETC. OU DE FORTES POINTES DE SON PEUVENT INTERVENIR INOPINEMENT.
FR7923057A 1978-10-31 1979-09-07 Amplificateur a transistor pour orchestres Withdrawn FR2440650A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2847363A DE2847363C2 (de) 1978-10-31 1978-10-31 Transistorverstärker

Publications (1)

Publication Number Publication Date
FR2440650A1 true FR2440650A1 (fr) 1980-05-30

Family

ID=6053577

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923057A Withdrawn FR2440650A1 (fr) 1978-10-31 1979-09-07 Amplificateur a transistor pour orchestres

Country Status (12)

Country Link
US (1) US4314207A (fr)
JP (1) JPS5924562B2 (fr)
BE (1) BE878692A (fr)
DE (1) DE2847363C2 (fr)
FI (1) FI792014A (fr)
FR (1) FR2440650A1 (fr)
GB (1) GB2034546B (fr)
IT (1) IT1207952B (fr)
NL (1) NL7903840A (fr)
NO (1) NO150940C (fr)
SE (1) SE7906451L (fr)
YU (1) YU162079A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132402A1 (de) * 1980-10-08 1982-05-27 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung mit elektronisch steuerbarem uebertragungsverhalten
DE3216707C2 (de) * 1982-05-05 1986-08-14 ANT Nachrichtentechnik GmbH, 7150 Backnang Netzwerk mit vorwählbar nichtlinearem Zusammenhang zwischen Eingangs- und Ausgangsgröße
US5434536A (en) * 1987-03-23 1995-07-18 Pritchard; Eric K. Semiconductor emulation of vacuum tubes
US5734725A (en) * 1987-03-23 1998-03-31 Pritchard; Eric K. Tube emulator amplifier system
JPH03114653U (fr) * 1990-03-07 1991-11-26
US6204717B1 (en) * 1995-05-22 2001-03-20 Hitachi, Ltd. Semiconductor circuit and semiconductor device for use in equipment such as a power converting apparatus
ATE320015T1 (de) 1997-12-17 2006-03-15 Inter Company Computer Enginee Vorrichtung zur feststellung von annäherungen
JP5284343B2 (ja) * 2010-12-27 2013-09-11 株式会社東芝 送信装置
FR3041464B1 (fr) * 2015-09-18 2020-03-27 Pierre-Benoit Prud'Homme Circuit de distorsion a ecretement doux
FR3067510B1 (fr) * 2017-06-08 2019-07-19 Pierre-Benoit Prud'Homme Circuit de modulation d’amplitude a semiconducteur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268830A (en) * 1963-08-13 1966-08-23 Sam P Ragsdale Operational amplifier gain control circuit utilizing non-linear devices
DE1286125B (de) * 1966-06-04 1969-01-02 Telefunken Patent Verstaerker mit amplitudenabhaengiger Gegenkopplung
GB1499983A (en) * 1975-03-04 1978-02-01 Gen Electric Co Ltd Audio-frequency amplifiers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153152A (en) * 1961-02-09 1964-10-13 Jr Henry C Hoffman Variable limiter for analog computer using a fixed zener diode
GB1114452A (en) * 1964-05-28 1968-05-22 Fujitsu Ltd A variable gain amplifier
US3436559A (en) * 1965-10-23 1969-04-01 Bailey Meter Co Static function generator
DE2332211C3 (de) * 1973-06-25 1978-12-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Gerät zum Auswerten von elektrischen Signalen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268830A (en) * 1963-08-13 1966-08-23 Sam P Ragsdale Operational amplifier gain control circuit utilizing non-linear devices
DE1286125B (de) * 1966-06-04 1969-01-02 Telefunken Patent Verstaerker mit amplitudenabhaengiger Gegenkopplung
GB1499983A (en) * 1975-03-04 1978-02-01 Gen Electric Co Ltd Audio-frequency amplifiers

Also Published As

Publication number Publication date
NO150940C (no) 1985-01-16
SE7906451L (sv) 1980-05-01
US4314207A (en) 1982-02-02
NO150940B (no) 1984-10-01
DE2847363C2 (de) 1982-06-09
IT7983410A0 (it) 1979-07-03
BE878692A (fr) 1979-12-31
FI792014A (fi) 1980-05-01
GB2034546B (en) 1983-05-18
IT1207952B (it) 1989-06-01
JPS5924562B2 (ja) 1984-06-11
NO792093L (no) 1980-05-02
YU162079A (en) 1983-02-28
NL7903840A (nl) 1980-05-02
GB2034546A (en) 1980-06-04
JPS5561119A (en) 1980-05-08
DE2847363A1 (de) 1980-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse