FI20075410A0 - Systems, methods and devices for linear envelope elimination and return transmitters - Google Patents

Systems, methods and devices for linear envelope elimination and return transmitters

Info

Publication number
FI20075410A0
FI20075410A0 FI20075410A FI20075410A FI20075410A0 FI 20075410 A0 FI20075410 A0 FI 20075410A0 FI 20075410 A FI20075410 A FI 20075410A FI 20075410 A FI20075410 A FI 20075410A FI 20075410 A0 FI20075410 A0 FI 20075410A0
Authority
FI
Finland
Prior art keywords
systems
methods
devices
envelope elimination
linear envelope
Prior art date
Application number
FI20075410A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20075410L (en
Original Assignee
Samsung Electro Mech
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 Samsung Electro Mech filed Critical Samsung Electro Mech
Publication of FI20075410A0 publication Critical patent/FI20075410A0/en
Publication of FI20075410L publication Critical patent/FI20075410L/en

Links

Classifications

    • 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
    • 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
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
    • 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
    • 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
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • 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
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • 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
    • H03F1/0216—Continuous control
    • H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
    • 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3282—Acting on the phase and the amplitude of the input signal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/361—Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/324—An amplitude modulator or demodulator being used in the amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/78—A comparator being used in a controlling circuit of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/99—A diode as rectifier being used as a detecting circuit in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion
FI20075410A 2006-06-04 2007-06-04 Systems, methods and apparatus for linear envelope elimination and recovery transmitters FI20075410L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80387106P 2006-06-04 2006-06-04
US11/754,119 US7518445B2 (en) 2006-06-04 2007-05-25 Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters

Publications (2)

Publication Number Publication Date
FI20075410A0 true FI20075410A0 (en) 2007-06-04
FI20075410L FI20075410L (en) 2007-12-05

Family

ID=38289782

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20075410A FI20075410L (en) 2006-06-04 2007-06-04 Systems, methods and apparatus for linear envelope elimination and recovery transmitters

Country Status (6)

Country Link
US (2) US7518445B2 (en)
KR (1) KR100867548B1 (en)
DE (1) DE102007026022A1 (en)
FI (1) FI20075410L (en)
FR (1) FR2924539A1 (en)
GB (1) GB2438749B8 (en)

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GB2389253B (en) * 2002-05-31 2005-09-21 Hitachi Ltd Transmitter and semiconductor integrated circuit for communication
US7558542B2 (en) * 2006-06-09 2009-07-07 Mediatek Inc. System and method for providing a transmitter for polar modulation and power amplifier linearization
US7729670B2 (en) * 2006-09-29 2010-06-01 Broadcom Corporation Method and system for minimizing power consumption in a communication system
US20090042520A1 (en) * 2007-08-07 2009-02-12 Harris Corporation Envelope tracking RF amplifier
US20090139972A1 (en) * 2007-10-23 2009-06-04 Psion Teklogix Inc. Docking connector
CN101217522A (en) * 2007-12-27 2008-07-09 华为技术有限公司 A method and device to determine the predistortion parameter of open loop, commutator and commutating method
US7800437B2 (en) * 2008-05-21 2010-09-21 Silicon Laboratories Inc. Closed loop timing feedback for PWM switching amplifiers using predictive feedback compensation
EP2144365A1 (en) * 2008-07-11 2010-01-13 Alcatel Lucent Device for amplifying signals with an envelope tracking technique or an envelope extraction and restoration technique controlled by a switched modulation
EP2306638B1 (en) * 2009-09-30 2011-11-16 Alcatel Lucent Envelope tracking amplifier arrangement
JP5036839B2 (en) * 2010-03-24 2012-09-26 株式会社東芝 Power amplifier and semiconductor integrated circuit
EP2728744A1 (en) 2010-12-22 2014-05-07 Sumitomo Electric Industries, Ltd. Amplifier circuit and wireless communication equipment
GB2498391B (en) * 2012-01-16 2018-11-21 Snaptrack Inc Pre-distortion in RF path in combination with shaping table in envelope path for envelope tracking amplifier
WO2013145748A1 (en) * 2012-03-30 2013-10-03 日本電気株式会社 Amplifier and amplification method
WO2014050218A1 (en) * 2012-09-25 2014-04-03 株式会社日立国際電気 Distortion compensation circuit and transmission device using distortion compensation circuit and high-frequency power amplifier
US8841968B2 (en) * 2012-09-26 2014-09-23 Broadcom Corporation Class-AB radio frequency amplifier for envelope detector
GB201309235D0 (en) * 2013-05-22 2013-07-03 Nujira Ltd Transfer function regulation
US11140018B2 (en) * 2014-01-07 2021-10-05 Quantumsine Acquisitions Inc. Method and apparatus for intra-symbol multi-dimensional modulation
US10382246B2 (en) * 2014-01-07 2019-08-13 Quantumsine Acquisitions Inc. Combined amplitude-time and phase modulation
US9866182B2 (en) 2015-05-15 2018-01-09 Crocus Technology Inc. MRAM-based pre-distortion linearization and amplification circuits
US9748901B2 (en) 2015-06-16 2017-08-29 Avago Technologies General Ip (Singapore) Pte. Ltd. Power amplifying apparatus
US11025458B2 (en) * 2019-02-07 2021-06-01 Qorvo Us, Inc. Adaptive frequency equalizer for wide modulation bandwidth envelope tracking
US11671064B2 (en) 2020-01-07 2023-06-06 Qorvo Us, Inc. Equalizer for envelope power supply circuitry
US11677365B2 (en) 2020-01-08 2023-06-13 Qorvo Us, Inc. Envelope tracking power management apparatus incorporating multiple power amplifiers
US11716057B2 (en) 2020-01-28 2023-08-01 Qorvo Us, Inc. Envelope tracking circuitry
US11728774B2 (en) 2020-02-26 2023-08-15 Qorvo Us, Inc. Average power tracking power management integrated circuit
US11545945B2 (en) * 2020-03-04 2023-01-03 Qorvo Us, Inc. Apparatus and method for calibrating an envelope tracking lookup table
US11626844B2 (en) 2020-03-09 2023-04-11 Qorvo Us, Inc. Envelope tracking radio frequency front-end circuit
US11909385B2 (en) 2020-10-19 2024-02-20 Qorvo Us, Inc. Fast-switching power management circuit and related apparatus

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Also Published As

Publication number Publication date
US20070290748A1 (en) 2007-12-20
GB0710602D0 (en) 2007-07-11
KR100867548B1 (en) 2008-11-06
GB2438749A (en) 2007-12-05
DE102007026022A1 (en) 2008-01-24
FI20075410L (en) 2007-12-05
FR2924539A1 (en) 2009-06-05
US20090174473A1 (en) 2009-07-09
GB2438749B (en) 2011-02-16
GB2438749A8 (en) 2008-11-26
KR20070116205A (en) 2007-12-07
US7518445B2 (en) 2009-04-14
GB2438749B8 (en) 2011-07-13
US7888997B2 (en) 2011-02-15

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