FR2373189A1 - Amplificateur de signaux impulsionnels de largeur modulee - Google Patents

Amplificateur de signaux impulsionnels de largeur modulee

Info

Publication number
FR2373189A1
FR2373189A1 FR7736774A FR7736774A FR2373189A1 FR 2373189 A1 FR2373189 A1 FR 2373189A1 FR 7736774 A FR7736774 A FR 7736774A FR 7736774 A FR7736774 A FR 7736774A FR 2373189 A1 FR2373189 A1 FR 2373189A1
Authority
FR
France
Prior art keywords
pulse signal
integrator
input
signal amplifier
width pulse
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.)
Granted
Application number
FR7736774A
Other languages
English (en)
Other versions
FR2373189B1 (fr
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of FR2373189A1 publication Critical patent/FR2373189A1/fr
Application granted granted Critical
Publication of FR2373189B1 publication Critical patent/FR2373189B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/511—Many discrete supply voltages or currents or voltage levels can be chosen by a control signal in an IC-block amplifier circuit

Landscapes

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

Abstract

a. Amplificateur de signaux impulsionnels de largeur modulée. b. Amplificateur caractérisé en ce que l'intégrateur présente une seconde entrée, un second moyen etant prévu pour relier la seconde entrée de l'intégrateur à la seconde entrée du circuit pour appliquer le signal rectangulaire à cet intégrateur, ainsi qu'un circuit de réaction négative branché entre la sortie (de l'amplificateur à gain élevé) de l'amplificateur impulsionnel de puissance et la seconde entrée de l'intégrateur.
FR7736774A 1976-12-06 1977-12-06 Amplificateur de signaux impulsionnels de largeur modulee Granted FR2373189A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51146325A JPS5947486B2 (ja) 1976-12-06 1976-12-06 パルス幅変調増巾回路

Publications (2)

Publication Number Publication Date
FR2373189A1 true FR2373189A1 (fr) 1978-06-30
FR2373189B1 FR2373189B1 (fr) 1984-04-27

Family

ID=15405111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7736774A Granted FR2373189A1 (fr) 1976-12-06 1977-12-06 Amplificateur de signaux impulsionnels de largeur modulee

Country Status (8)

Country Link
US (1) US4134076A (fr)
JP (1) JPS5947486B2 (fr)
AU (1) AU510688B2 (fr)
CA (1) CA1090891A (fr)
DE (1) DE2754268C2 (fr)
FR (1) FR2373189A1 (fr)
GB (1) GB1591927A (fr)
NL (1) NL189692C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10347227A1 (de) * 2003-10-06 2005-05-04 Joachim Schumann Einstieg für ein Schwimmbad

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170606A (en) * 1981-04-10 1982-10-20 Sony Corp Amplifying circuit for pulse-width-modulated signal
US4992749A (en) * 1988-12-28 1991-02-12 Pioneer Electronic Corporation Pulse-width modulating amplifier circuit
US5157351A (en) * 1991-08-28 1992-10-20 Sgs-Thomson Microelectronics, Inc. Insulated gate enhancement mode field effect transistor with slew-rate control on drain output
DE69726592T2 (de) 1996-10-31 2004-11-11 Bang & Olufsen A/S Pulsmodulierterkeistungsverstärker mit verbessertem kaskadiertem steuerungsverfahren
DE69818631T2 (de) * 1997-08-12 2004-08-12 Koninklijke Philips Electronics N.V. Verstärkungsanordnung für digitale signale
US6636124B1 (en) 2001-11-30 2003-10-21 Analog Technologies, Inc. Method and apparatus for accurate pulse width modulation
JP2005322958A (ja) * 2004-05-06 2005-11-17 Nec Electronics Corp Ｄ級アンプ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509479A (en) * 1966-11-29 1970-04-28 Sperry Rand Corp Simplified pulse width modulated amplifier
JPS5818804B2 (ja) * 1974-12-18 1983-04-14 ソニー株式会社 パルス幅変調増巾回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10347227A1 (de) * 2003-10-06 2005-05-04 Joachim Schumann Einstieg für ein Schwimmbad

Also Published As

Publication number Publication date
AU510688B2 (en) 1980-07-10
JPS5370649A (en) 1978-06-23
CA1090891A (fr) 1980-12-02
NL189692C (nl) 1993-06-16
GB1591927A (en) 1981-07-01
US4134076A (en) 1979-01-09
AU3125577A (en) 1979-06-14
NL7713492A (nl) 1978-06-08
DE2754268C2 (de) 1986-04-03
FR2373189B1 (fr) 1984-04-27
DE2754268A1 (de) 1978-08-03
JPS5947486B2 (ja) 1984-11-19
NL189692B (nl) 1993-01-18

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Legal Events

Date Code Title Description
ST Notification of lapse