EE200000692A - Eelsalvestatud sigma-delta väärtused võimsusvõimendi juhtimiseks - Google Patents

Eelsalvestatud sigma-delta väärtused võimsusvõimendi juhtimiseks

Info

Publication number
EE200000692A
EE200000692A EEP200000692A EEP200000692A EE200000692A EE 200000692 A EE200000692 A EE 200000692A EE P200000692 A EEP200000692 A EE P200000692A EE P200000692 A EEP200000692 A EE P200000692A EE 200000692 A EE200000692 A EE 200000692A
Authority
EE
Estonia
Prior art keywords
power amplifier
sigma
preloaded
amplifier control
delta values
Prior art date
Application number
EEP200000692A
Other languages
English (en)
Estonian (et)
Inventor
H�kan Torbj�rn G�rdenfors Karl
Khullar Anders
Grahm Torbj�rn
Sedvallson Sebastian
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
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 Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Publication of EE200000692A publication Critical patent/EE200000692A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EEP200000692A 1998-05-29 1999-05-27 Eelsalvestatud sigma-delta väärtused võimsusvõimendi juhtimiseks EE200000692A (et)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/086,565 US6097251A (en) 1998-05-29 1998-05-29 Pre-recorded sigma delta values for power amplifier control
PCT/SE1999/000906 WO1999063660A1 (fr) 1998-05-29 1999-05-27 Valeurs sigma delta pre-enregistrees destinees a la commande d'un amplificateur de puissance

Publications (1)

Publication Number Publication Date
EE200000692A true EE200000692A (et) 2002-04-15

Family

ID=22199412

Family Applications (1)

Application Number Title Priority Date Filing Date
EEP200000692A EE200000692A (et) 1998-05-29 1999-05-27 Eelsalvestatud sigma-delta väärtused võimsusvõimendi juhtimiseks

Country Status (10)

Country Link
US (1) US6097251A (fr)
EP (1) EP1082811B1 (fr)
CN (1) CN1197239C (fr)
AT (1) ATE228730T1 (fr)
AU (1) AU4664799A (fr)
BR (1) BR9910772A (fr)
DE (1) DE69904169T2 (fr)
EE (1) EE200000692A (fr)
HK (1) HK1040007B (fr)
WO (1) WO1999063660A1 (fr)

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US6327462B1 (en) 1998-12-29 2001-12-04 Conexant Systems, Inc. System and method for dynamically varying operational parameters of an amplifier
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US7245018B1 (en) * 1999-06-22 2007-07-17 Semiconductor Energy Laboratory Co., Ltd. Wiring material, semiconductor device provided with a wiring using the wiring material and method of manufacturing thereof
US6597925B1 (en) * 2000-03-16 2003-07-22 Agere Systems Inc. Transmitter circuit with frequency self-optimization
US6552614B1 (en) * 2000-11-08 2003-04-22 Texas Instruments Incorporated Broadband cable modem amplifier with programmable bias current
US7248628B2 (en) * 2001-03-02 2007-07-24 Shaeffer Derek K Method and apparatus for a programmable filter
US6515605B2 (en) * 2001-04-30 2003-02-04 Texas Instruments Incorporated Base station having high speed, high resolution, digital-to-analog converter with off-line sigma delta conversion and storage
US6518902B2 (en) * 2001-04-30 2003-02-11 Texas Instruments Incorporated PC card and WLAN system having high speed, high resolution, digital-to analog converter with off-line sigma delta conversion and storage
US6489908B2 (en) * 2001-04-30 2002-12-03 Texas Instruments Incorporated Wireless local loop terminal and system having high speed, high resolution, digital-to-analog converter with off-line sigma-delta conversion and storage
GB2402006B (en) * 2003-05-23 2005-08-10 Motorola Inc Analog to digital converter
KR100604823B1 (ko) * 2003-07-11 2006-07-26 삼성전자주식회사 Ｇｓｍ과 ｇｐｒｓ 송신기의 전력 램핑 제어기 및 그 제어방법
EP1508967A1 (fr) * 2004-05-28 2005-02-23 Siemens Aktiengesellschaft Module amplificateur de puissance et terminal mobile
US7768353B2 (en) * 2008-06-13 2010-08-03 Samsung Electro-Mechanics Company, Ltd. Systems and methods for switching mode power amplifier control
US8325073B2 (en) * 2010-11-30 2012-12-04 Qualcomm Incorporated Performing enhanced sigma-delta modulation

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GB8826918D0 (en) * 1988-11-17 1988-12-21 Motorola Inc Power amplifier for radio frequency signal
JPH07105724B2 (ja) * 1989-07-14 1995-11-13 ヤマハ株式会社 ディジタル・アナログ変換回路
JP3012888B2 (ja) * 1989-11-24 2000-02-28 日本テキサス・インスツルメンツ株式会社 信号変調装置
GB2247793A (en) * 1990-09-06 1992-03-11 Motorola Inc Control of pulse power amplifier rise and fall
JPH07118652B2 (ja) * 1990-10-12 1995-12-18 ヤマハ株式会社 Ｄａ変換装置
US5057840A (en) * 1990-12-26 1991-10-15 Motorola, Inc. Σ-Δmodulator for digital-to-analog converter
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US5349353A (en) * 1992-12-28 1994-09-20 Zrilic Djuro G Method and apparatus for mixed analog and digital processing of delta modulated pulse streams including digital-to-analog conversion of a digital input signal
US5323157A (en) * 1993-01-15 1994-06-21 Motorola, Inc. Sigma-delta digital-to-analog converter with reduced noise
JP2966226B2 (ja) * 1993-02-17 1999-10-25 三菱電機株式会社 電力増幅器自動制御回路
DE69417296T2 (de) * 1993-06-28 1999-11-04 Csem Centre Suisse D`Electronique Et De Microtechnique S.A. - Recherche Et Developpement, Neuchatel Schaltung zur Verarbeitung von Signalen mit einer Eingangsstufe mit veränderbarer Verstärkung
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US5621172A (en) * 1995-04-03 1997-04-15 State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Method and apparatus for testing material strengths
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US5748126A (en) * 1996-03-08 1998-05-05 S3 Incorporated Sigma-delta digital-to-analog conversion system and process through reconstruction and resampling

Also Published As

Publication number Publication date
EP1082811A1 (fr) 2001-03-14
CN1309832A (zh) 2001-08-22
US6097251A (en) 2000-08-01
CN1197239C (zh) 2005-04-13
BR9910772A (pt) 2001-02-13
ATE228730T1 (de) 2002-12-15
WO1999063660A1 (fr) 1999-12-09
DE69904169T2 (de) 2003-06-12
EP1082811B1 (fr) 2002-11-27
HK1040007A1 (en) 2002-05-17
AU4664799A (en) 1999-12-20
HK1040007B (zh) 2005-11-25
DE69904169D1 (de) 2003-01-09

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