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 PDFInfo
- 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
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.
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)
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)
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)
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 |
-
2001
- 2001-07-24 DE DE10135993A patent/DE10135993A1/de not_active Ceased
-
2002
- 2002-07-22 TW TW091116257A patent/TW589780B/zh not_active IP Right Cessation
- 2002-07-22 WO PCT/DE2002/002689 patent/WO2003013095A2/de active Application Filing
Patent Citations (12)
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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