IN2014CN02746A - - Google Patents
Download PDFInfo
- Publication number
- IN2014CN02746A IN2014CN02746A IN2746CHN2014A IN2014CN02746A IN 2014CN02746 A IN2014CN02746 A IN 2014CN02746A IN 2746CHN2014 A IN2746CHN2014 A IN 2746CHN2014A IN 2014CN02746 A IN2014CN02746 A IN 2014CN02746A
- Authority
- IN
- India
- Prior art keywords
- signal
- phase
- gain
- power amplifier
- input
- Prior art date
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
-
- 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
- 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
-
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/345—Negative-feedback-circuit arrangements with or without positive feedback using hybrid or directional couplers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
-
- 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
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
-
- 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
- H03F1/32—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
- 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
- H03F2200/105—A non-specified detector of the power of a signal being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/153—Feedback used to stabilise the amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/228—A measuring circuit being coupled to the input of an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/393—A measuring circuit being coupled to the output of an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/405—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising more than three power stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/438—Separate feedback of amplitude and phase signals being present
-
- 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
- H03F2200/465—Power sensing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/66—Clipping circuitry being present in an amplifier, i.e. the shape of the signal being modified
-
- 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
- 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
- H03F2201/3227—Adaptive predistortion based on amplitude, envelope or power level feedback from the output of the main amplifier
-
- 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
- H03F2201/3231—Adaptive predistortion using phase feedback from the output of the main amplifier
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/001—Digital control of analog signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
- Transmitters (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11275122.7A EP2582043A1 (en) | 2011-10-10 | 2011-10-10 | Control system for a power amplifier |
| PCT/EP2012/067779 WO2013053557A1 (en) | 2011-10-10 | 2012-09-12 | Control system for a power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN2014CN02746A true IN2014CN02746A (https=) | 2015-07-03 |
Family
ID=46881044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN2746CHN2014 IN2014CN02746A (https=) | 2011-10-10 | 2012-09-12 |
Country Status (9)
| Country | Link |
|---|---|
| US (3) | US9634631B2 (https=) |
| EP (3) | EP2582043A1 (https=) |
| JP (2) | JP6618001B2 (https=) |
| CN (2) | CN103959644B (https=) |
| CA (2) | CA3050768C (https=) |
| ES (1) | ES2873476T3 (https=) |
| IN (1) | IN2014CN02746A (https=) |
| RU (2) | RU2730911C2 (https=) |
| WO (1) | WO2013053557A1 (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2582043A1 (en) | 2011-10-10 | 2013-04-17 | Astrium Limited | Control system for a power amplifier |
| US8514007B1 (en) | 2012-01-27 | 2013-08-20 | Freescale Semiconductor, Inc. | Adjustable power splitter and corresponding methods and apparatus |
| US9748905B2 (en) | 2013-03-15 | 2017-08-29 | Qorvo Us, Inc. | RF replicator for accurate modulated amplitude and phase measurement |
| US9899133B2 (en) | 2013-08-01 | 2018-02-20 | Qorvo Us, Inc. | Advanced 3D inductor structures with confined magnetic field |
| US12224096B2 (en) | 2013-03-15 | 2025-02-11 | Qorvo Us, Inc. | Advanced 3D inductor structures with confined magnetic field |
| US9444417B2 (en) | 2013-03-15 | 2016-09-13 | Qorvo Us, Inc. | Weakly coupled RF network based power amplifier architecture |
| JP5971284B2 (ja) * | 2014-06-26 | 2016-08-17 | 住友電気工業株式会社 | 増幅装置及び無線通信装置 |
| US9774299B2 (en) * | 2014-09-29 | 2017-09-26 | Nxp Usa, Inc. | Modifiable signal adjustment devices for power amplifiers and corresponding methods and apparatus |
| US9374262B1 (en) * | 2014-12-18 | 2016-06-21 | Viasat, Inc. | Techniques for linearizing phase separately from amplitude in a communications system |
| CN107258074A (zh) * | 2014-12-19 | 2017-10-17 | 中兴通讯股份有限公司 | 高效输出功率合成的数字微波无线电系统 |
| CN104569589B (zh) * | 2014-12-24 | 2017-03-15 | 北京无线电测量研究所 | 一种Ku波段多支路功率放大器相位差自动化测试装置及方法 |
| US9647611B1 (en) | 2015-10-28 | 2017-05-09 | Nxp Usa, Inc. | Reconfigurable power splitters and amplifiers, and corresponding methods |
| US9831835B2 (en) * | 2016-02-26 | 2017-11-28 | Nxp Usa, Inc. | Multiple path amplifier with pre-cancellation |
| JP6271101B1 (ja) * | 2016-03-02 | 2018-01-31 | 三菱電機株式会社 | 移相精度校正回路、ベクトル合成型移相器及び無線通信機 |
| US9974038B2 (en) * | 2016-06-30 | 2018-05-15 | Macom Technology Solutions Holdings, Inc. | Circuits and operating methods thereof for correcting phase errors caused by gallium nitride devices |
| KR102059817B1 (ko) * | 2018-05-25 | 2019-12-27 | 삼성전기주식회사 | 증폭 이득 가변에 따른 위상 왜곡을 보상하는 가변이득 저잡음 증폭장치 |
| CN111711423B (zh) * | 2020-06-03 | 2024-02-02 | 唯捷创芯(天津)电子技术股份有限公司 | 射频功率放大器、射频前端模块及通信终端 |
| JP7649466B2 (ja) * | 2021-01-21 | 2025-03-21 | 住友電気工業株式会社 | コントローラ、歪補償装置、通信機、及び歪補償のために入力信号を調整する方法 |
| CN113612451A (zh) * | 2021-07-28 | 2021-11-05 | 江汉大学 | 一种射频功放线性化方法、装置及存储介质 |
Family Cites Families (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900823A (en) * | 1973-03-28 | 1975-08-19 | Nathan O Sokal | Amplifying and processing apparatus for modulated carrier signals |
| JPS6278902A (ja) * | 1985-10-01 | 1987-04-11 | Nec Corp | 線形化回路付高出力増幅器 |
| JPH03198407A (ja) * | 1989-12-26 | 1991-08-29 | Mitsubishi Electric Corp | 線形増幅器 |
| JP2834304B2 (ja) | 1990-10-19 | 1998-12-09 | 松下電器産業株式会社 | 線形電力増幅回路 |
| FR2674336B1 (fr) * | 1991-03-22 | 1994-07-29 | Thomson Csf | Dispositif comparateur de phase a grande dynamique. |
| FR2722350B1 (fr) * | 1994-07-08 | 1996-08-23 | Alcatel Espace | Methode de linearisation d'un amplificateur non-lineaire, circuit de linearisation et amplificateur comportant un tel circuit |
| US5455537A (en) | 1994-08-19 | 1995-10-03 | Radio Frequency Systems, Inc. | Feed forward amplifier |
| JP2697650B2 (ja) * | 1994-12-28 | 1998-01-14 | 日本電気株式会社 | フィードフォワード増幅器 |
| US5528196A (en) * | 1995-01-06 | 1996-06-18 | Spectrian, Inc. | Linear RF amplifier having reduced intermodulation distortion |
| GB2301247A (en) * | 1995-05-22 | 1996-11-27 | Univ Bristol | A cartesian loop transmitter amplifier |
| US5974041A (en) * | 1995-12-27 | 1999-10-26 | Qualcomm Incorporated | Efficient parallel-stage power amplifier |
| US5742201A (en) * | 1996-01-30 | 1998-04-21 | Spectrian | Polar envelope correction mechanism for enhancing linearity of RF/microwave power amplifier |
| DE19736660C1 (de) * | 1997-08-22 | 1999-03-11 | Siemens Ag | Regelanordnung zur Linearisierung einer Verstärkerschaltung |
| US5912586A (en) | 1997-12-23 | 1999-06-15 | Motorola, Inc. | Feed forward amplifier with digital intermodulation control |
| US6091298A (en) * | 1998-08-27 | 2000-07-18 | Nortel Networks Corporation | Linear amplifier arrangement |
| US6069530A (en) * | 1998-09-16 | 2000-05-30 | Motorola, Inc. | Apparatus and method for linear power amplification |
| JP2000151295A (ja) * | 1998-11-05 | 2000-05-30 | Mitsubishi Electric Corp | 歪補償回路 |
| US6043707A (en) * | 1999-01-07 | 2000-03-28 | Motorola, Inc. | Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier |
| IT1311680B1 (it) * | 1999-06-17 | 2002-03-19 | Itelco S P A | Sistema di predistorsione misto in banda base e if per lalinearizzazione di amplificatori. |
| US6259319B1 (en) | 1999-08-19 | 2001-07-10 | Lucent Technologies Inc. | Adaptive gain and/or phase adjustment control system and method |
| JP3761076B2 (ja) | 2001-08-07 | 2006-03-29 | 株式会社日立国際電気 | フィードフォワード方式歪補償増幅器 |
| KR20030014514A (ko) * | 2001-08-11 | 2003-02-19 | 한국전자통신연구원 | 비선형 초고주파 회로의 혼변조 신호 검출 장치 |
| US7088968B2 (en) * | 2001-12-12 | 2006-08-08 | Intel Corporation | Method and polar-loop transmitter with origin offset for zero-crossing signals |
| JP4052834B2 (ja) * | 2001-12-27 | 2008-02-27 | 三洋電機株式会社 | 増幅回路 |
| JP2003273659A (ja) * | 2002-03-15 | 2003-09-26 | Hitachi Kokusai Electric Inc | 歪補償増幅装置 |
| JP2003318663A (ja) * | 2002-04-26 | 2003-11-07 | Shimada Phys & Chem Ind Co Ltd | 歪補償増幅装置 |
| US6972622B2 (en) * | 2003-05-12 | 2005-12-06 | Andrew Corporation | Optimization of error loops in distributed power amplifiers |
| US6975167B2 (en) * | 2003-07-03 | 2005-12-13 | Icefyre Semiconductor Corporation | Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
| FI20040139A0 (fi) * | 2004-01-30 | 2004-01-30 | Nokia Corp | Elektroninen piiri |
| US7193462B2 (en) * | 2005-03-22 | 2007-03-20 | Powerwave Technologies, Inc. | RF power amplifier system employing an analog predistortion module using zero crossings |
| JP5301831B2 (ja) | 2005-06-30 | 2013-09-25 | 富士通株式会社 | 歪補償回路を有する電力増幅器 |
| US8032097B2 (en) * | 2006-02-03 | 2011-10-04 | Quantance, Inc. | Amplitude error de-glitching circuit and method of operating |
| US8095090B2 (en) * | 2006-02-03 | 2012-01-10 | Quantance, Inc. | RF power amplifier controller circuit |
| US7933570B2 (en) * | 2006-02-03 | 2011-04-26 | Quantance, Inc. | Power amplifier controller circuit |
| US7761065B2 (en) * | 2006-02-03 | 2010-07-20 | Quantance, Inc. | RF power amplifier controller circuit with compensation for output impedance mismatch |
| US7917106B2 (en) * | 2006-02-03 | 2011-03-29 | Quantance, Inc. | RF power amplifier controller circuit including calibrated phase control loop |
| CN100474761C (zh) * | 2007-01-30 | 2009-04-01 | 深圳国人通信有限公司 | 前馈线性功率放大器中载波对消的智能控制系统与方法 |
| RU2470456C2 (ru) * | 2007-05-04 | 2012-12-20 | Астриум Лимитед | Многопортовые усилители в спутниках связи |
| US7541868B2 (en) * | 2007-05-31 | 2009-06-02 | Andrew, Llc | Delay modulator pre-distortion circuit for an amplifier |
| CN101527544B (zh) * | 2008-03-05 | 2012-09-12 | 富士通株式会社 | 非线性系统逆特性辨识装置及方法、功率放大器及其预失真器 |
| RU2412535C1 (ru) * | 2009-09-03 | 2011-02-20 | Государственное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ГОУ ВПО "ЮРГУЭС") | Дифференциальный операционный усилитель |
| JP4918685B2 (ja) * | 2010-01-14 | 2012-04-18 | 防衛省技術研究本部長 | 過渡的インダクタンス計測方法及び装置 |
| CN102201792A (zh) * | 2010-03-25 | 2011-09-28 | 上海沙丘微电子有限公司 | 音频功率放大器自动增益控制电路 |
| EP2582043A1 (en) | 2011-10-10 | 2013-04-17 | Astrium Limited | Control system for a power amplifier |
-
2011
- 2011-10-10 EP EP11275122.7A patent/EP2582043A1/en not_active Ceased
-
2012
- 2012-09-12 RU RU2017113359A patent/RU2730911C2/ru active
- 2012-09-12 EP EP21165799.4A patent/EP3859970B1/en active Active
- 2012-09-12 CA CA3050768A patent/CA3050768C/en active Active
- 2012-09-12 IN IN2746CHN2014 patent/IN2014CN02746A/en unknown
- 2012-09-12 EP EP12761716.5A patent/EP2766988B1/en active Active
- 2012-09-12 WO PCT/EP2012/067779 patent/WO2013053557A1/en not_active Ceased
- 2012-09-12 CA CA2851555A patent/CA2851555C/en active Active
- 2012-09-12 JP JP2014534982A patent/JP6618001B2/ja not_active Expired - Fee Related
- 2012-09-12 ES ES12761716T patent/ES2873476T3/es active Active
- 2012-09-12 RU RU2014118567A patent/RU2617508C2/ru active
- 2012-09-12 CN CN201280057860.8A patent/CN103959644B/zh active Active
- 2012-09-12 US US14/350,976 patent/US9634631B2/en not_active Expired - Fee Related
- 2012-09-12 CN CN201710827893.0A patent/CN107689779B/zh active Active
-
2017
- 2017-04-24 US US15/495,284 patent/US9991860B2/en active Active
-
2018
- 2018-06-01 US US15/996,128 patent/US10651809B2/en active Active
-
2019
- 2019-08-30 JP JP2019158748A patent/JP6860273B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| RU2017113359A3 (https=) | 2020-06-16 |
| CA2851555C (en) | 2019-10-08 |
| CA3050768A1 (en) | 2013-04-18 |
| CA2851555A1 (en) | 2013-04-18 |
| RU2730911C2 (ru) | 2020-08-26 |
| US20170230021A1 (en) | 2017-08-10 |
| US20150054582A1 (en) | 2015-02-26 |
| EP3859970C0 (en) | 2025-06-04 |
| US9991860B2 (en) | 2018-06-05 |
| EP2766988A1 (en) | 2014-08-20 |
| CN103959644B (zh) | 2017-10-03 |
| JP2014528681A (ja) | 2014-10-27 |
| JP6618001B2 (ja) | 2019-12-11 |
| EP2582043A1 (en) | 2013-04-17 |
| US9634631B2 (en) | 2017-04-25 |
| CN103959644A (zh) | 2014-07-30 |
| WO2013053557A1 (en) | 2013-04-18 |
| RU2617508C2 (ru) | 2017-04-25 |
| RU2014118567A (ru) | 2015-11-20 |
| CN107689779B (zh) | 2021-01-26 |
| RU2017113359A (ru) | 2019-01-28 |
| CN107689779A (zh) | 2018-02-13 |
| US10651809B2 (en) | 2020-05-12 |
| CA3050768C (en) | 2021-03-16 |
| US20180287578A1 (en) | 2018-10-04 |
| JP6860273B2 (ja) | 2021-04-14 |
| ES2873476T3 (es) | 2021-11-03 |
| JP2020005285A (ja) | 2020-01-09 |
| EP2766988B1 (en) | 2021-05-05 |
| EP3859970B1 (en) | 2025-06-04 |
| EP3859970A1 (en) | 2021-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IN2014CN02746A (https=) | ||
| GB2545337A (en) | System with multiple signal loops and switched mode converter | |
| TW201613286A (en) | Circuits and methods for 2G amplification using 3G/4G linear path combination | |
| WO2010151466A3 (en) | Method and system for controlling radio frequency power | |
| WO2013134026A3 (en) | Envelope tracking power amplifier system with delay calibration | |
| WO2012075436A3 (en) | Systems and methods for power control in a multiple standard mobile transmitter | |
| WO2009016695A1 (ja) | 光増幅装置とこれを含んだ光伝送システム | |
| WO2013012787A3 (en) | Modified switching ripple for envelope tracking system | |
| WO2012154840A3 (en) | System providing switchable impedance transformer matching for power amplifiers | |
| WO2012177861A3 (en) | Power management for an electronic device | |
| GB2479498B (en) | Methods and systems for stabilizing an amplifier | |
| WO2014110289A3 (en) | Programmably configured switchmode audio amplifier | |
| MX356967B (es) | Aparato de procesamiento de audio y método de control del mismo. | |
| WO2009014740A3 (en) | Reduced distortion radio frequency amplifiers | |
| WO2007112156A3 (en) | Pwm feedback/feed-forward protection | |
| WO2010101719A3 (en) | Amplifier system for cell sites and other suitable applications | |
| WO2009028023A1 (ja) | エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム | |
| WO2012099891A3 (en) | Single die power amplifier with closed loop power control | |
| MY172982A (en) | Configuring signal boosters | |
| GB2574986A (en) | Switching in an audio system with multiple playback paths | |
| WO2016150761A3 (en) | Method and arrangement for automatic tuning of a controller | |
| MX2017014097A (es) | Amplificador de potencia compuesto. | |
| GB201208689D0 (en) | Amplifier | |
| WO2010120478A3 (en) | Method and system for testing data signal amplifier having output signal power dependent upon multiple power control parameters | |
| WO2013173489A3 (en) | Integrated technique for enhanced power amplifier forward power detection |