FR2404337A1 - Amplificateur de puissance a modulation de duree d'impulsions - Google Patents

Amplificateur de puissance a modulation de duree d'impulsions

Info

Publication number
FR2404337A1
FR2404337A1 FR7827426A FR7827426A FR2404337A1 FR 2404337 A1 FR2404337 A1 FR 2404337A1 FR 7827426 A FR7827426 A FR 7827426A FR 7827426 A FR7827426 A FR 7827426A FR 2404337 A1 FR2404337 A1 FR 2404337A1
Authority
FR
France
Prior art keywords
switching elements
power amplifier
pulse duration
amplifier
pulse trains
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Withdrawn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
FR7827426A
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.)
Harris Corp
Original Assignee
Harris 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 Harris Corp filed Critical Harris Corp
Publication of FR2404337A1 publication Critical patent/FR2404337A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • H03F3/2178—Class D power amplifiers; Switching amplifiers using more than one switch or switching amplifier in parallel or in series

Landscapes

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

Abstract

L'invention concerne un amplificateur de puissance à modulation de durée d'impulsions. Les signaux d'entrée sont modulés pendant la durée d'impulsions de manière à produire plusieurs trains d'impulsions de même fréquence, déphasés les uns par rapport aux autres. Ces trains d'impulsions commandent des éléments de commutation séparés. Les signaux de sortie de ces éléments de commutation sont additionnés et filtrés pour délivrer un signal composite simplifié. Le nombre des éléments de commutation et des trains d'impulsions est déterminé en fonction de la fidélité voulue de l'amplificateur et de la réponse en fréquence de l'élément de commutation. L'invention s'applique notamment à un amplificateur d'attaque d'un étage modulateur d'émetteur en radiofréquence.
FR7827426A 1977-09-26 1978-09-25 Amplificateur de puissance a modulation de duree d'impulsions Withdrawn FR2404337A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/836,832 US4164714A (en) 1977-09-26 1977-09-26 Polyphase PDM amplifier

Publications (1)

Publication Number Publication Date
FR2404337A1 true FR2404337A1 (fr) 1979-04-20

Family

ID=25272845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7827426A Withdrawn FR2404337A1 (fr) 1977-09-26 1978-09-25 Amplificateur de puissance a modulation de duree d'impulsions

Country Status (4)

Country Link
US (1) US4164714A (fr)
JP (1) JPS5457941A (fr)
DE (1) DE2841833A1 (fr)
FR (1) FR2404337A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025234A1 (fr) * 1979-08-09 1981-03-18 PATELHOLD Patentverwertungs- & Elektro-Holding AG Amplificateur de puissance basse fréquence et application à un émetteur à modulation d'amplitude
EP0124765A1 (fr) * 1983-05-10 1984-11-14 BBC Brown Boveri AG Amplificateur de puissance à commutation numérique
FR2567338A1 (fr) * 1984-07-06 1986-01-10 Thomson Csf Amplificateur a etages d'amplification commutables en fonction de l'amplitude du signal d'entree a amplifier
WO2001076061A1 (fr) * 2000-03-31 2001-10-11 Ling Dynamic Systems Limited Amplificateur d'energie a mode de commutation haute frequence
US6882219B2 (en) 2000-03-31 2005-04-19 Ling Dynamic Systems High frequency switch-mode power amplifier

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5650387A (en) * 1979-09-29 1981-05-07 Kawai Musical Instr Mfg Co Waveform conversion circuit
GB2064901B (en) * 1979-11-30 1984-11-07 Harris Corp Digital high power amplifier
JPS56136008A (en) * 1980-03-28 1981-10-23 Pioneer Electronic Corp Pulse-width modulating and amplifying circuit
US4369409A (en) * 1980-08-05 1983-01-18 Patelhold Patentverwertungs- & Elektro-Holding A.G. Low-frequency power amplifier
US4399558A (en) * 1981-06-29 1983-08-16 Rca Corporation Cascaded digital broadcast transmitter
US4580111A (en) * 1981-12-24 1986-04-01 Harris Corporation Amplitude modulation using digitally selected carrier amplifiers
US4468626A (en) * 1982-01-25 1984-08-28 Harris Corporation Polyphase PDM amplifier
US4510456A (en) * 1983-09-28 1985-04-09 Harris Corporation PDM Amplifier having distortion reduction circuit
US4646321A (en) * 1984-08-31 1987-02-24 Raytheon Company Interpolation pulse duration modulated adder
US4660162A (en) * 1984-08-31 1987-04-21 Raytheon Company Interpolation pulse duration modulated multiplier
US4673888A (en) * 1986-09-02 1987-06-16 Electro-Voice, Inc. Power control system
JPS62135228U (fr) * 1987-01-10 1987-08-26
DE3907919A1 (de) * 1988-07-07 1990-01-11 Olympia Aeg Leistungsverstaerker
DE3822990A1 (de) * 1988-07-07 1990-01-11 Olympia Aeg Leistungsverstaerker
US4947455A (en) * 1988-11-09 1990-08-07 Harris Corporation RF power supply for supplying a regulated power amplified unmodulated drive signal to an RF modulator
US5099203A (en) * 1990-06-05 1992-03-24 Continental Electronics Corporation Power amplifier having multiple switched stages and method of operating same
US5200707A (en) * 1990-06-05 1993-04-06 Continental Electronics Corporation Amplifier with multiple switched stages and noise suppression
US5249201A (en) * 1991-02-01 1993-09-28 Mst, Inc. Transmission of multiple carrier signals in a nonlinear system
DE4306690A1 (de) * 1993-03-04 1994-09-08 Thomcast Ag Turgi Modulationsverstärker für Rundfunksender
KR0145622B1 (ko) * 1995-11-28 1998-12-01 김광호 펄스폭변조신호 출력회로
US7430257B1 (en) 1998-02-12 2008-09-30 Lot 41 Acquisition Foundation, Llc Multicarrier sub-layer for direct sequence channel and multiple-access coding
US5955992A (en) * 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
US5969571A (en) * 1998-02-17 1999-10-19 Harris Corporation Pulse duration amplifier system
US8516055B2 (en) 1998-05-29 2013-08-20 Research In Motion Limited System and method for pushing information from a host system to a mobile data communication device in a wireless data network
US6064325A (en) * 1998-08-11 2000-05-16 Trw Inc. Frequency modulation-based folding optical analog-to-digital converter
CA2347991A1 (fr) * 1998-11-30 2000-06-08 Bang & Olufsen Powerhouse A/S Convertisseur de puissance a modulation d'impulsions en duree
US6813319B1 (en) 1999-10-08 2004-11-02 M/A-Com Eurotec System and method for transmitting digital information using interleaved delta modulation
EP1323230B1 (fr) * 2000-09-21 2007-04-25 Koninklijke Philips Electronics N.V. Amplificateur de puissance a commutation
US6459336B1 (en) 2000-10-11 2002-10-01 Harris Corporation RF amplifier system having PDM drive
US8670390B2 (en) 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
US10355720B2 (en) 2001-04-26 2019-07-16 Genghiscomm Holdings, LLC Distributed software-defined radio
US9893774B2 (en) 2001-04-26 2018-02-13 Genghiscomm Holdings, LLC Cloud radio access network
US10931338B2 (en) 2001-04-26 2021-02-23 Genghiscomm Holdings, LLC Coordinated multipoint systems
US9819449B2 (en) 2002-05-14 2017-11-14 Genghiscomm Holdings, LLC Cooperative subspace demultiplexing in content delivery networks
US10425135B2 (en) 2001-04-26 2019-09-24 Genghiscomm Holdings, LLC Coordinated multipoint systems
JP2003060443A (ja) * 2001-08-21 2003-02-28 Sony Corp スイッチング増幅装置
US6605991B2 (en) * 2001-08-30 2003-08-12 Motorola, Inc. Circuitry for creating a spectral null in a differential output switching amplifier and method therefor
US7146015B2 (en) * 2001-12-12 2006-12-05 Motorola Inc. Frequency threshold audio activity detector
US10200227B2 (en) 2002-05-14 2019-02-05 Genghiscomm Holdings, LLC Pre-coding in multi-user MIMO
US10644916B1 (en) 2002-05-14 2020-05-05 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US10142082B1 (en) 2002-05-14 2018-11-27 Genghiscomm Holdings, LLC Pre-coding in OFDM
US9628231B2 (en) 2002-05-14 2017-04-18 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
DE60304213T2 (de) * 2002-08-14 2007-03-29 Dspfactory S.A. Klasse-d verstärker
US7142060B1 (en) * 2003-12-31 2006-11-28 Conexant Systems, Inc. Active splitter for multiple reception units
US11381285B1 (en) 2004-08-02 2022-07-05 Genghiscomm Holdings, LLC Transmit pre-coding
US11552737B1 (en) 2004-08-02 2023-01-10 Genghiscomm Holdings, LLC Cooperative MIMO
US11184037B1 (en) 2004-08-02 2021-11-23 Genghiscomm Holdings, LLC Demodulating and decoding carrier interferometry signals
JP4257346B2 (ja) * 2006-06-27 2009-04-22 株式会社東芝 電力増幅器
US8089786B1 (en) 2009-06-18 2012-01-03 Rockwell Collins, Inc. Reduced-loss polyphase resonant power converter
KR101683174B1 (ko) * 2010-01-08 2016-12-06 삼성전자주식회사 오디오 신호 증폭 방법 및 그 장치
KR101664431B1 (ko) * 2010-01-08 2016-10-10 삼성전자주식회사 오디오 신호 출력 방법 및 그 장치
JP5519404B2 (ja) * 2010-05-25 2014-06-11 国立大学法人豊橋技術科学大学 スイッチング回路及び包絡線信号増幅器
US8766713B2 (en) * 2012-05-31 2014-07-01 Qualcomm Incorporated Switching amplifier with embedded harmonic rejection filter
US12224860B1 (en) 2014-01-30 2025-02-11 Genghiscomm Holdings, LLC Linear coding in decentralized networks
US10243773B1 (en) 2017-06-30 2019-03-26 Genghiscomm Holdings, LLC Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM
US10637705B1 (en) 2017-05-25 2020-04-28 Genghiscomm Holdings, LLC Peak-to-average-power reduction for OFDM multiple access
US11917604B2 (en) 2019-01-25 2024-02-27 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US11343823B2 (en) 2020-08-16 2022-05-24 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US12206535B1 (en) 2018-06-17 2025-01-21 Tybalt, Llc Artificial neural networks in wireless communication systems
EP3915236A4 (fr) 2019-01-25 2023-05-24 Genghiscomm Holdings, LLC Accès multiple orthogonal, et accès multiple non orthogonal
WO2020242898A1 (fr) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Accès multiple non orthogonal
CN119232101B (zh) * 2024-10-16 2025-07-22 国电投核力电科(无锡)技术有限公司 一种新型低失真度数字调制直接驱动功放装置的实现方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260912A (en) * 1963-06-19 1966-07-12 Gen Motors Corp Power amplifier employing pulse duration modulation
US3585517A (en) * 1968-05-01 1971-06-15 Westinghouse Electric Corp High-efficiency power amplifier
US3629616A (en) * 1969-07-01 1971-12-21 Electronic Communications High-efficiency modulation circuit for switching-mode audio amplifier
US3579132A (en) * 1969-11-14 1971-05-18 Ltv Ling Altec Inc Class {37 d{38 {0 linear audio amplifier
US3648186A (en) * 1970-03-24 1972-03-07 Kahn Res Lab Amplification system
JPS5754968B2 (fr) * 1974-06-06 1982-11-20
JPS5627001B2 (fr) * 1974-07-23 1981-06-22

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025234A1 (fr) * 1979-08-09 1981-03-18 PATELHOLD Patentverwertungs- & Elektro-Holding AG Amplificateur de puissance basse fréquence et application à un émetteur à modulation d'amplitude
EP0124765A1 (fr) * 1983-05-10 1984-11-14 BBC Brown Boveri AG Amplificateur de puissance à commutation numérique
FR2567338A1 (fr) * 1984-07-06 1986-01-10 Thomson Csf Amplificateur a etages d'amplification commutables en fonction de l'amplitude du signal d'entree a amplifier
WO2001076061A1 (fr) * 2000-03-31 2001-10-11 Ling Dynamic Systems Limited Amplificateur d'energie a mode de commutation haute frequence
US6882219B2 (en) 2000-03-31 2005-04-19 Ling Dynamic Systems High frequency switch-mode power amplifier

Also Published As

Publication number Publication date
US4164714A (en) 1979-08-14
DE2841833A1 (de) 1979-04-05
US4164714B1 (fr) 1984-12-25
JPS5457941A (en) 1979-05-10

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Legal Events

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