ES8102434A1 - Un dispositivo amplificador perfeccionado - Google Patents

Un dispositivo amplificador perfeccionado

Info

Publication number
ES8102434A1
ES8102434A1 ES488449A ES488449A ES8102434A1 ES 8102434 A1 ES8102434 A1 ES 8102434A1 ES 488449 A ES488449 A ES 488449A ES 488449 A ES488449 A ES 488449A ES 8102434 A1 ES8102434 A1 ES 8102434A1
Authority
ES
Spain
Prior art keywords
amplifier stage
supply circuit
output
audio signal
power supply
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
Application number
ES488449A
Other languages
English (en)
Other versions
ES488449A0 (es
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES488449A0 publication Critical patent/ES488449A0/es
Publication of ES8102434A1 publication Critical patent/ES8102434A1/es
Expired legal-status Critical Current

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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/15—Indexing scheme relating to amplifiers the supply or bias voltage or current at the drain side of a FET being continuously controlled by a controlling signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/228—A measuring circuit being coupled to the input of an amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

CIRCUITO AMPLIFICADOR CON FUENTE DE ALIMENTACION. UNA UNIDAD DE ALIMENTACION (1) COMPUESTA POR UN TRANSFORMADOR (10), CUATRO DIODOS (11, 12, 13, 14), Y UN DISPOSIITVO REGULADOR DE TENSION (16) CONSTITUYE LA FUENTE DE ENERGIA DEL SISTEMA. A TRAVES DE UN DETECTOR DINAMICO (4) SE ENCUANTRA LA UNIDAD DE ALIMENTACION (1) CONECTADA A UNA ENTRADA DE AUDIO (5), Y UN CIRCUITO EN CASCADA CONSISTENTE EN UN CIRCUITO DE RETARDO (6), UN PREAMPLIFICADOR (7), UN PASO (8) DE SALIDA DE AMPLIFICADOR, Y UN ALTAVOZ (9). UNA SALIDA (22) DEL DISPOSITIVO REGULADOR DE TENSION (16) ALIMENTA EL PREAMPLIFICADOR (7) Y EL PASO (8) DE SALIDA DE AMPLIFICADOR. AL INTRODUCIRSE LA SEÑAL DE AUDIO, SI ESTA AUMENTA, LO HACE TAMBIEN LA TENSION DE ALIMENTACION DE LA SALIDA (22), HACIENDOLO LAS DOS A LA VEZ EN LOS CIRCUITOS DE SALIDA MERCED AL RETARDO INTRODUCIDO EN LA SEÑAL DE AUDIO POR EL CIRCUITO DE RETARDO (6).
ES488449A 1979-02-13 1980-02-11 Un dispositivo amplificador perfeccionado Expired ES8102434A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7901118A NL7901118A (nl) 1979-02-13 1979-02-13 Versterker bevattende een voedingsschakeling en een daarmee verbonden versterker-trap.

Publications (2)

Publication Number Publication Date
ES488449A0 ES488449A0 (es) 1980-12-16
ES8102434A1 true ES8102434A1 (es) 1980-12-16

Family

ID=19832627

Family Applications (1)

Application Number Title Priority Date Filing Date
ES488449A Expired ES8102434A1 (es) 1979-02-13 1980-02-11 Un dispositivo amplificador perfeccionado

Country Status (9)

Country Link
JP (1) JPS55109006A (es)
AU (1) AU5537080A (es)
DE (1) DE3003833A1 (es)
ES (1) ES8102434A1 (es)
FR (1) FR2449362A1 (es)
GB (1) GB2043382A (es)
IT (1) IT1193375B (es)
NL (1) NL7901118A (es)
SE (1) SE8001041L (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH664655A5 (de) * 1980-12-12 1988-03-15 Patelhold Patentverwertung Verfahren und verstaerkerschaltung zum verstaerken elektrischer signale, insbesondere nf-modulationssignale eines rundfunksenders.
NL8203428A (nl) * 1982-09-02 1984-04-02 Philips Nv Inrichting voor het omzetten van een elektrisch signaal in een akoestisch signaal.
IT1200794B (it) * 1985-10-16 1989-01-27 Sgs Microelettronica Spa Dispositivo per aumentare la potenza di uscita di una apparecchio radio alimentato a bassa tensione particolarmente del tipo autoradio
KR920017329A (ko) * 1991-02-22 1992-09-26 원본미기재 적응전압 조정기
GB2275384A (en) * 1993-02-22 1994-08-24 Thomson Consumer Electronics Controlling amplifier power supply in dependence on signal level
GB2360410A (en) * 2000-03-18 2001-09-19 Univ Bristol An amplifier in which the input signal is delayed to allow time for the power supply to adjust to a level which minimises power loss
US8362838B2 (en) 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US9184705B2 (en) 2013-03-15 2015-11-10 Bose Corporation Feedback mechanism for boost-on-demand amplifiers
US9154095B2 (en) 2013-03-15 2015-10-06 Bose Corporation Boost-on-demand amplifier

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705775A (en) * 1952-03-27 1955-04-05 Murray G Crosby Modulated wave amplifier
US3426266A (en) * 1966-03-22 1969-02-04 Collins Radio Co Signal modulated self-regulated switching voltage regulatoramplifier
US3486128A (en) * 1968-02-07 1969-12-23 Us Army Power amplifier for amplitude modulated transmitter
SE370300B (es) * 1969-12-16 1974-10-07 Western Electric Co
FR2109336A5 (es) * 1970-10-13 1972-05-26 Thomson Csf
US3753138A (en) * 1971-06-03 1973-08-14 Ampex Amplifier system with continuously variable supply
DE2137249C3 (de) * 1971-07-26 1982-10-28 Deutsche Automobilgesellschaft Mbh, 3000 Hannover Schaltung zur Verringerung der Verlustleistung bei Leistungsendstufen von Gleichspannungsverstärkern mit Begrenzung des Ausgangsstromes
JPS51121239A (en) * 1975-04-17 1976-10-23 Sony Corp An amplification circuit
JPS6115620Y2 (es) * 1976-03-02 1986-05-15
JPS52132660A (en) * 1976-04-28 1977-11-07 Matsushita Electric Ind Co Ltd Power amplifier

Also Published As

Publication number Publication date
SE8001041L (sv) 1980-08-14
AU5537080A (en) 1980-08-21
FR2449362A1 (fr) 1980-09-12
ES488449A0 (es) 1980-12-16
DE3003833A1 (de) 1980-08-14
JPS55109006A (en) 1980-08-21
IT8019824A0 (it) 1980-02-08
GB2043382A (en) 1980-10-01
NL7901118A (nl) 1980-08-15
IT1193375B (it) 1988-06-15

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