DE3879627D1 - Huellkurvenverstaerker. - Google Patents

Huellkurvenverstaerker.

Info

Publication number
DE3879627D1
DE3879627D1 DE8888904831T DE3879627T DE3879627D1 DE 3879627 D1 DE3879627 D1 DE 3879627D1 DE 8888904831 T DE8888904831 T DE 8888904831T DE 3879627 T DE3879627 T DE 3879627T DE 3879627 D1 DE3879627 D1 DE 3879627D1
Authority
DE
Germany
Prior art keywords
amplifier
shell curve
curve
shell
curve amplifier
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
DE8888904831T
Other languages
English (en)
Other versions
DE3879627T2 (de
Inventor
Thomas Hudspeth
S Kaplan
A Rosen
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.)
DirecTV Group Inc
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of DE3879627D1 publication Critical patent/DE3879627D1/de
Application granted granted Critical
Publication of DE3879627T2 publication Critical patent/DE3879627T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03F1/0244—Stepped control
    • 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)
DE88904831T 1987-06-08 1988-05-06 Hüllkurvenverstärker. Expired - Fee Related DE3879627T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/059,709 US4831334A (en) 1987-06-08 1987-06-08 Envelope amplifier

Publications (2)

Publication Number Publication Date
DE3879627D1 true DE3879627D1 (de) 1993-04-29
DE3879627T2 DE3879627T2 (de) 1993-10-21

Family

ID=22024746

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88904831T Expired - Fee Related DE3879627T2 (de) 1987-06-08 1988-05-06 Hüllkurvenverstärker.

Country Status (6)

Country Link
US (1) US4831334A (de)
EP (1) EP0316405B1 (de)
JP (1) JPH0758871B2 (de)
CA (1) CA1286734C (de)
DE (1) DE3879627T2 (de)
WO (1) WO1988010025A1 (de)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CH681499A5 (de) * 1990-10-30 1993-03-31 Ascom Audiosys Ag
US5249201A (en) * 1991-02-01 1993-09-28 Mst, Inc. Transmission of multiple carrier signals in a nonlinear system
US5311143A (en) * 1992-07-02 1994-05-10 Motorola, Inc. RF amplifier bias control method and apparatus
US5847602A (en) * 1997-03-03 1998-12-08 Hewlett-Packard Company Method and apparatus for linearizing an efficient class D/E power amplifier using delta modulation
US5990735A (en) * 1997-07-02 1999-11-23 Motorola, Inc. Method and apparatus for high efficiency power amplification
US5886572A (en) * 1997-07-25 1999-03-23 Motorola, Inc. Method and apparatus for reducing distortion in a power amplifier
US5831475A (en) * 1997-08-04 1998-11-03 Motorola, Inc. Method and apparatus for delay matching in a power amplifier
US6049703A (en) * 1997-11-28 2000-04-11 Motorola, Inc. Amplifier circuit and method for increasing linearity of the amplifier circuit
US5929702A (en) * 1997-11-28 1999-07-27 Motorola, Inc. Method and apparatus for high efficiency high dynamic range power amplification
US5942938A (en) * 1997-12-29 1999-08-24 Motorola, Inc. Method and apparatus for high efficiency power amplification
US5886573A (en) * 1998-03-06 1999-03-23 Fujant, Inc. Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier
US6864668B1 (en) 1999-02-09 2005-03-08 Tropian, Inc. High-efficiency amplifier output level and burst control
US6377784B2 (en) * 1999-02-09 2002-04-23 Tropian, Inc. High-efficiency modulation RF amplifier
EP1201024A1 (de) * 1999-07-29 2002-05-02 Tropian, Inc. Mit hohem wirkungsgrad modulierter hf-verstärker
US6157253A (en) * 1999-09-03 2000-12-05 Motorola, Inc. High efficiency power amplifier circuit with wide dynamic backoff range
FR2804257B1 (fr) * 2000-01-21 2005-02-25 Harris Corp Amplificateur de puissance rf et ses ameliorations
US6366177B1 (en) 2000-02-02 2002-04-02 Tropian Inc. High-efficiency power modulators
US6707857B1 (en) 2000-07-14 2004-03-16 Ericsson Inc. Reference signal pre-distortion for transmitter with frequency synthesizer based phase encoding
US6734724B1 (en) 2000-10-06 2004-05-11 Tropian, Inc. Power control and modulation of switched-mode power amplifiers with one or more stages
US6486733B2 (en) * 2000-12-27 2002-11-26 Motorola, Inc. Method and apparatus for high efficiency power amplification
US6538515B2 (en) 2001-01-19 2003-03-25 Telefonaktiebolaget Lm Ericsson (Publ) Power amplifier and method of operating a power amplifier having multiple output-power modes
US6593806B1 (en) * 2001-08-10 2003-07-15 Cirrus Logic, Inc. Circuits and methods for compensating switched mode amplifiers
WO2003056698A2 (en) * 2001-12-24 2003-07-10 Koninklijke Philips Electronics N.V. Power amplifier
KR20050053591A (ko) * 2002-10-28 2005-06-08 마츠시타 덴끼 산교 가부시키가이샤 송신기
GB2398648B (en) 2003-02-19 2005-11-09 Nujira Ltd Power supply stage for an amplifier
US7623896B2 (en) * 2004-02-04 2009-11-24 Sharp Kabushiki Kaisha Wireless communication circuit and wireless communication apparatus using the same
US6975172B2 (en) * 2004-05-03 2005-12-13 Peavey Electronics Corporation Smart voltage rail reduction audio amplifier
ITBO20050260A1 (it) * 2005-04-20 2006-10-21 Ocem Spa Metodo per la modulazione di una tensione
JP4868846B2 (ja) * 2005-12-22 2012-02-01 富士通株式会社 電圧制御信号調整装置及び電圧制御信号調整方法
US7519336B2 (en) * 2006-05-05 2009-04-14 Nokia Corporation Method and arrangement for optimizing efficiency of a power amplifier
US7570931B2 (en) * 2006-06-02 2009-08-04 Crestcom, Inc. RF transmitter with variably biased RF power amplifier and method therefor
JP2008178226A (ja) * 2007-01-18 2008-07-31 Fujitsu Ltd 電源装置および負荷装置への電源電圧の供給方法
US8064851B2 (en) * 2008-03-06 2011-11-22 Crestcom, Inc. RF transmitter with bias-signal-induced distortion compensation and method therefor
ATE488117T1 (de) * 2009-03-24 2010-11-15 Alcatel Lucent Verfahren zur datenübertragung mittels eines ummantelungseliminierungs- und - wiederherstellungsverstärkers, ummantelungseliminierungs- und - wiederherstellungsverstärker, übertragungsvorrichtung, empfangsvorrichtung und kommunikationsnetzwerk dafür
JP5336907B2 (ja) * 2009-04-02 2013-11-06 パナソニック株式会社 電源変調回路
US8278904B2 (en) * 2009-07-23 2012-10-02 Quantance, Inc. High bandwidth power supply system with high efficiency and low distortion
CN101662222B (zh) * 2009-09-30 2012-01-04 华为技术有限公司 电源跟踪方法和装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319175A (en) * 1964-07-27 1967-05-09 Hugh L Dryden Electronic amplifier with power supply switching
US4205241A (en) * 1979-03-13 1980-05-27 Fisher Charles B Quantized modulation systems
GB2064901B (en) * 1979-11-30 1984-11-07 Harris Corp Digital high power amplifier
JPS572107A (en) * 1980-06-04 1982-01-07 Pioneer Electronic Corp Power supply circuit of electric power amplifier
JPS5732104A (en) * 1980-08-06 1982-02-20 Hitachi Ltd Power-voltage-controlled type amplifier
US4580111A (en) 1981-12-24 1986-04-01 Harris Corporation Amplitude modulation using digitally selected carrier amplifiers
DE3465857D1 (en) * 1983-05-10 1987-10-08 Bbc Brown Boveri & Cie Digital power switching amplifier
US4628438A (en) * 1983-12-16 1986-12-09 Control Concepts Corporation Power converter apparatus and method employing plural branches
FR2557399B1 (fr) * 1983-12-23 1990-05-04 Thomson Csf Amplificateur de puissance lineaire

Also Published As

Publication number Publication date
CA1286734C (en) 1991-07-23
US4831334A (en) 1989-05-16
JPH0758871B2 (ja) 1995-06-21
EP0316405B1 (de) 1993-03-24
WO1988010025A1 (en) 1988-12-15
JPH01503587A (ja) 1989-11-30
EP0316405A1 (de) 1989-05-24
DE3879627T2 (de) 1993-10-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HUGHES ELECTRONICS CORP., EL SEGUNDO, CALIF., US

8339 Ceased/non-payment of the annual fee