BR0002979A - Sistema de ajuste de carga de amplificador de potência - Google Patents

Sistema de ajuste de carga de amplificador de potência

Info

Publication number
BR0002979A
BR0002979A BR0002979-3A BR0002979A BR0002979A BR 0002979 A BR0002979 A BR 0002979A BR 0002979 A BR0002979 A BR 0002979A BR 0002979 A BR0002979 A BR 0002979A
Authority
BR
Brazil
Prior art keywords
power amplifier
power
adjustment system
load adjustment
command
Prior art date
Application number
BR0002979-3A
Other languages
English (en)
Other versions
BR0002979B1 (pt
Inventor
Armin Klomsdorf
Luke Edward Winkelmann
Michael Landherr
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR0002979A publication Critical patent/BR0002979A/pt
Publication of BR0002979B1 publication Critical patent/BR0002979B1/pt

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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • 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
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

<B>SISTEMA DE AJUSTE DE CARGA DE AMPLIFICADOR DE POTêNCIA<D>Um sistema de ajuste de carga de amplificador de potência (200) inclui um amplificador de potência (32) e uma rede de impedância variável (36) acoplada à saída do amplificador de potência (32). A rede de impedância variável (36) apresenta diversas impedâncias à saída do amplificador de potência (32) sensível a um sinal de controle de carga. Um circuito de controle (20) gera um comando de potência de transmissão e um comando de freq³ência de canal. A memória (40) armazena diversos valores de controle como uma função de potência de saída e freq³ência. Um circuito de processamento (38) acoplado à rede de impedância variável (36), ao circuito de controle (20) e a memória (40) recupera os diversos valores de controle e os utiliza para gerar o sinal de controle de carga em resposta ao comando de potência de transmissão e ao comando de freq³ência de canal.
BRPI0002979-3A 1999-07-22 2000-07-19 sistema de ajuste de carga de amplificador de potência. BR0002979B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/358,674 US6556814B1 (en) 1999-07-22 1999-07-22 Memory-based amplifier load adjust system

Publications (2)

Publication Number Publication Date
BR0002979A true BR0002979A (pt) 2001-07-31
BR0002979B1 BR0002979B1 (pt) 2012-11-27

Family

ID=23410590

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0002979-3A BR0002979B1 (pt) 1999-07-22 2000-07-19 sistema de ajuste de carga de amplificador de potência.

Country Status (7)

Country Link
US (2) US6556814B1 (pt)
JP (1) JP2001068942A (pt)
KR (1) KR100502122B1 (pt)
CN (1) CN1172432C (pt)
BR (1) BR0002979B1 (pt)
DE (1) DE10035066B4 (pt)
GB (1) GB2356094B (pt)

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Also Published As

Publication number Publication date
DE10035066B4 (de) 2009-07-16
GB0017423D0 (en) 2000-08-30
CN1282139A (zh) 2001-01-31
US20030199256A1 (en) 2003-10-23
DE10035066A1 (de) 2001-03-15
BR0002979B1 (pt) 2012-11-27
GB2356094B (en) 2002-02-13
JP2001068942A (ja) 2001-03-16
CN1172432C (zh) 2004-10-20
US6556814B1 (en) 2003-04-29
KR20010015417A (ko) 2001-02-26
GB2356094A (en) 2001-05-09
KR100502122B1 (ko) 2005-07-19

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