WO2003013095A3 - Verfahren zur reduzierung der verlustleistung bei der verstärkung von ofdm-signalen und zugehörige vorrichtung - Google Patents

Verfahren zur reduzierung der verlustleistung bei der verstärkung von ofdm-signalen und zugehörige vorrichtung Download PDF

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Publication number
WO2003013095A3
WO2003013095A3 PCT/DE2002/002689 DE0202689W WO03013095A3 WO 2003013095 A3 WO2003013095 A3 WO 2003013095A3 DE 0202689 W DE0202689 W DE 0202689W WO 03013095 A3 WO03013095 A3 WO 03013095A3
Authority
WO
WIPO (PCT)
Prior art keywords
ofdm signals
amplification
reducing
power loss
occurring during
Prior art date
Application number
PCT/DE2002/002689
Other languages
English (en)
French (fr)
Other versions
WO2003013095A2 (de
Inventor
Juergen Rupp
Original Assignee
Siemens Ag
Juergen Rupp
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 Siemens Ag, Juergen Rupp filed Critical Siemens Ag
Publication of WO2003013095A2 publication Critical patent/WO2003013095A2/de
Publication of WO2003013095A3 publication Critical patent/WO2003013095A3/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • 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
    • H03F1/0255—Stepped control by using a signal derived from the output signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

Speziell in der PLC-Technologie werden Verstärker benötigt, die im gesamten Aussteuerbereich von sogenannten OFDM-Signa-len einen hinreichenden Wirkungsgrad haben. Gemäß der Erfindung wird der erforderliche Dynamikbereich in mindestens zwei Teilbereiche aufgeteilt, zwischen denen im Grenzbereich 'weich' umgeschaltet werden. Dafür sind bei der Vorrichtung alternativ beispielsweise zwei sich ablösende Endstufen (10, 20) oder eine Endstufe, die sich ablösend an zwei Versorgungsspannungen angeschaltet wird, vorhanden.
PCT/DE2002/002689 2001-07-24 2002-07-22 Verfahren zur reduzierung der verlustleistung bei der verstärkung von ofdm-signalen und zugehörige vorrichtung WO2003013095A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10135993.4 2001-07-24
DE10135993A DE10135993A1 (de) 2001-07-24 2001-07-24 Verfahren zur Reduzierung der Verlustleistung bei linearen Verstärkern und zugehörige Vorrichtung

Publications (2)

Publication Number Publication Date
WO2003013095A2 WO2003013095A2 (de) 2003-02-13
WO2003013095A3 true WO2003013095A3 (de) 2003-08-28

Family

ID=7692888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002689 WO2003013095A2 (de) 2001-07-24 2002-07-22 Verfahren zur reduzierung der verlustleistung bei der verstärkung von ofdm-signalen und zugehörige vorrichtung

Country Status (3)

Country Link
DE (1) DE10135993A1 (de)
TW (1) TW589780B (de)
WO (1) WO2003013095A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100690615B1 (ko) 2005-03-21 2007-03-09 엘지전자 주식회사 직교 주파수 분할 다중화 수신기의 전력 의존 소프트 결정장치 및 그 방법
JP2007150872A (ja) * 2005-11-29 2007-06-14 Matsushita Electric Ind Co Ltd 信号出力回路及び通信装置
GB2479166B (en) * 2010-03-30 2017-09-13 Snaptrack Inc Efficient supply voltage

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5886575A (en) * 1997-09-30 1999-03-23 Motorola, Inc. Apparatus and method for amplifying a signal
WO1999018662A1 (en) * 1997-10-07 1999-04-15 Telefonaktiebolaget Lm Ericsson Method and apparatus for reducing power dissipation in multi-carrier amplifiers
WO2000072546A1 (fr) * 1999-05-21 2000-11-30 Fujitsu Limited Appareil de transmission de signaux
WO2001028177A1 (en) * 1999-10-14 2001-04-19 Tropian, Inc. Analogue front end with multilevel sigma-delta modulator for adsl
WO2001037421A2 (en) * 1999-11-18 2001-05-25 Globespan, Inc. High efficiency power amplifier
WO2001045336A1 (en) * 1999-12-17 2001-06-21 Telefonaktiebolaget Lm Ericsson (Publ) An arrangement for reducing power dissipation in a line driver
US6262629B1 (en) * 1999-07-06 2001-07-17 Motorola, Inc. High efficiency power amplifier having reduced output matching networks for use in portable devices
EP1120901A1 (de) * 2000-01-24 2001-08-01 Telefonaktiebolaget Lm Ericsson Leitungstreiber
WO2001067598A1 (en) * 2000-03-10 2001-09-13 Paragon Communications Ltd. Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio
US6323733B1 (en) * 2000-03-30 2001-11-27 Nortel Networks Limited High efficiency dual supply power amplifier
WO2002037672A2 (en) * 2000-11-01 2002-05-10 Lewyn Consulting, Inc. Multiple-voltage supply power amplifier with dynamic headroom control
US6492867B2 (en) * 2000-03-10 2002-12-10 Paragon Communications Ltd. Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121239A (en) * 1975-04-17 1976-10-23 Sony Corp An amplification circuit
CA1214228A (en) * 1985-04-23 1986-11-18 Min-Tai Hong Audio frequency amplifier supplied with dynamic power on demand
DE4400393C1 (de) * 1994-01-08 1995-03-09 Blaupunkt Werke Gmbh NF-Gegentaktendstufe

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5886575A (en) * 1997-09-30 1999-03-23 Motorola, Inc. Apparatus and method for amplifying a signal
WO1999018662A1 (en) * 1997-10-07 1999-04-15 Telefonaktiebolaget Lm Ericsson Method and apparatus for reducing power dissipation in multi-carrier amplifiers
WO2000072546A1 (fr) * 1999-05-21 2000-11-30 Fujitsu Limited Appareil de transmission de signaux
US6262629B1 (en) * 1999-07-06 2001-07-17 Motorola, Inc. High efficiency power amplifier having reduced output matching networks for use in portable devices
WO2001028177A1 (en) * 1999-10-14 2001-04-19 Tropian, Inc. Analogue front end with multilevel sigma-delta modulator for adsl
WO2001037421A2 (en) * 1999-11-18 2001-05-25 Globespan, Inc. High efficiency power amplifier
WO2001045336A1 (en) * 1999-12-17 2001-06-21 Telefonaktiebolaget Lm Ericsson (Publ) An arrangement for reducing power dissipation in a line driver
EP1120901A1 (de) * 2000-01-24 2001-08-01 Telefonaktiebolaget Lm Ericsson Leitungstreiber
WO2001067598A1 (en) * 2000-03-10 2001-09-13 Paragon Communications Ltd. Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio
US6492867B2 (en) * 2000-03-10 2002-12-10 Paragon Communications Ltd. Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio
US6323733B1 (en) * 2000-03-30 2001-11-27 Nortel Networks Limited High efficiency dual supply power amplifier
WO2002037672A2 (en) * 2000-11-01 2002-05-10 Lewyn Consulting, Inc. Multiple-voltage supply power amplifier with dynamic headroom control

Also Published As

Publication number Publication date
DE10135993A1 (de) 2003-05-08
WO2003013095A2 (de) 2003-02-13
TW589780B (en) 2004-06-01

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