FI19992411A - Feedforward kompensaation tehovahvistinta varten - Google Patents
Feedforward kompensaation tehovahvistinta vartenInfo
- Publication number
- FI19992411A FI19992411A FI992411A FI19992411A FI19992411A FI 19992411 A FI19992411 A FI 19992411A FI 992411 A FI992411 A FI 992411A FI 19992411 A FI19992411 A FI 19992411A FI 19992411 A FI19992411 A FI 19992411A
- Authority
- FI
- Finland
- Prior art keywords
- power amplifier
- feedforward compensation
- feedforward
- compensation
- amplifier
- Prior art date
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
-
- 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
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
- H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
-
- 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
- H03F1/38—Positive-feedback circuit arrangements without negative feedback
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/189,642 US6531918B1 (en) | 1998-11-10 | 1998-11-10 | Low cost, pilotless, feed forward compensation for a power amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
FI19992411A true FI19992411A (fi) | 2000-05-10 |
Family
ID=22698184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI992411A FI19992411A (fi) | 1998-11-10 | 1999-11-09 | Feedforward kompensaation tehovahvistinta varten |
Country Status (5)
Country | Link |
---|---|
US (1) | US6531918B1 (fi) |
EP (1) | EP1001524A1 (fi) |
KR (1) | KR20000035329A (fi) |
CA (1) | CA2289128A1 (fi) |
FI (1) | FI19992411A (fi) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020052495A (ko) * | 2000-12-26 | 2002-07-04 | 엘지전자 주식회사 | 알에프 전력증폭기의 디지탈 선형화장치 |
US6760230B2 (en) * | 2001-02-28 | 2004-07-06 | Andrew Corporation | Compact, high efficiency, high isolation power amplifier |
US6771125B2 (en) * | 2002-03-01 | 2004-08-03 | Andrew Corporation | Tuning feed-forward amplifiers and the like |
US6919765B2 (en) * | 2003-08-22 | 2005-07-19 | Andrew Corporation | Amplifier linearization by pre-distorting a decomposed input signal |
US7038541B2 (en) * | 2004-05-28 | 2006-05-02 | Andrew Corporation | Adaptive feed-forward amplifiers and the like |
US7346317B2 (en) * | 2005-04-04 | 2008-03-18 | Freescale Semiconductor, Inc. | Dynamic gain and phase compensation for power amplifier load switching |
US7856105B2 (en) * | 2006-03-09 | 2010-12-21 | Andrew Llc | Apparatus and method for processing of amplifier linearization signals |
DE102008052172B4 (de) * | 2008-10-17 | 2014-01-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zum Erzeugen eines Korrektursignals |
CN101656518B (zh) * | 2009-09-07 | 2012-01-11 | 深圳市云海通讯股份有限公司 | 一种前馈功放电路及利用其实现功率放大的方法 |
US10594469B2 (en) | 2015-07-16 | 2020-03-17 | LGS Innovations LLC | Secure radio methods and apparatus |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07147547A (ja) * | 1993-11-24 | 1995-06-06 | Nec Corp | フィードフォワード型歪補償回路 |
US5485120A (en) * | 1994-07-28 | 1996-01-16 | Aval Communications Inc. | Feed-forward power amplifier system with adaptive control and control method |
US5619168A (en) * | 1995-08-07 | 1997-04-08 | Lucent Technologies Inc. | Distortion creation and reduction circuit |
US5694036A (en) * | 1995-08-07 | 1997-12-02 | Lucent Technologies Inc. | Direction sensor and distortion reduction control circuitry |
RU2142670C1 (ru) * | 1995-11-16 | 1999-12-10 | Самсунг Электроникс Ко., Лтд. | Устройство линейного усиления мощности |
US5867064A (en) * | 1996-08-19 | 1999-02-02 | Motorola, Inc. | Method and apparatus for improving intermodulation in a feed-forward amplifier |
DE19650388A1 (de) * | 1996-12-05 | 1998-06-18 | Bosch Gmbh Robert | Schaltung zur Linearisierung eines Verstärkers |
-
1998
- 1998-11-10 US US09/189,642 patent/US6531918B1/en not_active Expired - Lifetime
-
1999
- 1999-11-09 CA CA002289128A patent/CA2289128A1/en not_active Abandoned
- 1999-11-09 KR KR1019990049399A patent/KR20000035329A/ko not_active Application Discontinuation
- 1999-11-09 FI FI992411A patent/FI19992411A/fi unknown
- 1999-11-09 EP EP99308928A patent/EP1001524A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CA2289128A1 (en) | 2000-05-10 |
KR20000035329A (ko) | 2000-06-26 |
EP1001524A1 (en) | 2000-05-17 |
US6531918B1 (en) | 2003-03-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69939765D1 (de) | Vorwärtskopplungsverstärker | |
DE60041469D1 (de) | Vorwärtskopplungsverstärker | |
DE69930780D1 (de) | Leistungsverstärker | |
FI19992242A (fi) | Feedforward-vahvistinjärjestelmä | |
DE69931543D1 (de) | Leistungsverstärker | |
DE69736107D1 (de) | Vorspannungseinstellung für leistungsverstärker | |
DE69526144D1 (de) | Leistungsverstärker | |
SG90712A1 (en) | Power amplifier | |
DK128292D0 (da) | Hoereapparat med kompensation for akustisk tilbagekobling | |
FI971051A0 (fi) | Tehokas lineaaritehovahvistin | |
DE19983561T1 (de) | Leistungsversorgung für Verstärker | |
DE69905099D1 (de) | Vorwärtskopplungsverstärker | |
EP0988694A4 (en) | DYNAMIC PRE-DISTORTION COMPENSATION FOR A POWER AMPLIFIER | |
DE69911152D1 (de) | Symmetrischer Verstärker | |
IL133781A0 (en) | Power amplifier arrangement | |
EP1126596A4 (en) | PRECURSIVE CORRECTION AMPLIFIER | |
DE69939359D1 (de) | Verstärker | |
NO995112D0 (no) | Effektforsterker | |
DE60124485D1 (de) | Vorwärtskopplungsverstärker | |
DE69917822D1 (de) | Operationsverstärker | |
DE69738149D1 (de) | Punktzuwachskompensation | |
FI19992411A (fi) | Feedforward kompensaation tehovahvistinta varten | |
DK43292D0 (da) | Hoereapparat med kompensation for akustisk tilbagekobling | |
DE69833076D1 (de) | Operationsverstärker | |
DE69829036D1 (de) | Verbesserter linearer vorwärtsgekoppelter Hochfrequenz-Mehrträger-Leistungsverstärker |