GB2514388A - Delay adjustment - Google Patents

Delay adjustment Download PDF

Info

Publication number
GB2514388A
GB2514388A GB1309236.6A GB201309236A GB2514388A GB 2514388 A GB2514388 A GB 2514388A GB 201309236 A GB201309236 A GB 201309236A GB 2514388 A GB2514388 A GB 2514388A
Authority
GB
United Kingdom
Prior art keywords
signal
input
envelope
gain
path
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB1309236.6A
Other languages
English (en)
Other versions
GB201309236D0 (en
Inventor
Nicholas Shute
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nujira Ltd
Original Assignee
Nujira Ltd
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 Nujira Ltd filed Critical Nujira Ltd
Priority to GB1309236.6A priority Critical patent/GB2514388A/en
Publication of GB201309236D0 publication Critical patent/GB201309236D0/en
Priority to EP14730443.0A priority patent/EP3000173A1/en
Priority to CN201480028795.5A priority patent/CN105229920B/zh
Priority to PCT/EP2014/060581 priority patent/WO2014187918A1/en
Priority to JP2016514418A priority patent/JP2016519545A/ja
Priority to US14/892,501 priority patent/US10075134B2/en
Publication of GB2514388A publication Critical patent/GB2514388A/en
Withdrawn legal-status Critical Current

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
    • H03F1/02—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
    • 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
    • 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
    • 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
    • H03F1/0244—Stepped control
    • 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
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • 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
    • 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
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • 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
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB1309236.6A 2013-05-22 2013-05-22 Delay adjustment Withdrawn GB2514388A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB1309236.6A GB2514388A (en) 2013-05-22 2013-05-22 Delay adjustment
EP14730443.0A EP3000173A1 (en) 2013-05-22 2014-05-22 Delay adjustment
CN201480028795.5A CN105229920B (zh) 2013-05-22 2014-05-22 延迟调整
PCT/EP2014/060581 WO2014187918A1 (en) 2013-05-22 2014-05-22 Delay adjustment
JP2016514418A JP2016519545A (ja) 2013-05-22 2014-05-22 遅延調整
US14/892,501 US10075134B2 (en) 2013-05-22 2014-05-22 Delay adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1309236.6A GB2514388A (en) 2013-05-22 2013-05-22 Delay adjustment

Publications (2)

Publication Number Publication Date
GB201309236D0 GB201309236D0 (en) 2013-07-03
GB2514388A true GB2514388A (en) 2014-11-26

Family

ID=48747171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1309236.6A Withdrawn GB2514388A (en) 2013-05-22 2013-05-22 Delay adjustment

Country Status (6)

Country Link
US (1) US10075134B2 (enExample)
EP (1) EP3000173A1 (enExample)
JP (1) JP2016519545A (enExample)
CN (1) CN105229920B (enExample)
GB (1) GB2514388A (enExample)
WO (1) WO2014187918A1 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10951175B2 (en) 2018-09-04 2021-03-16 Qorvo Us, Inc. Envelope tracking circuit and related power amplifier apparatus
US11057012B2 (en) 2018-10-19 2021-07-06 Qorvo Us, Inc. Distributed envelope tracking amplifier circuit and related apparatus
US11088659B2 (en) 2018-10-19 2021-08-10 Qorvo Us, Inc. Multi-amplifier envelope tracking circuit and related apparatus
US10819287B2 (en) 2018-10-19 2020-10-27 Qorvo Us, Inc. Multi-voltage generation circuit and related envelope tracking amplifier apparatus
US11146213B2 (en) 2019-01-15 2021-10-12 Qorvo Us, Inc. Multi-radio access technology envelope tracking amplifier apparatus
US11088658B2 (en) 2019-03-13 2021-08-10 Qorvo Us, Inc. Envelope tracking amplifier apparatus
US10992264B2 (en) 2019-03-13 2021-04-27 Qorvo Us, Inc. Envelope tracking circuit and related apparatus
US11139780B2 (en) 2019-04-24 2021-10-05 Qorvo Us, Inc. Envelope tracking apparatus
US11038464B2 (en) * 2019-05-30 2021-06-15 Qorvo Us, Inc. Envelope tracking amplifier apparatus
US11323075B2 (en) 2019-05-30 2022-05-03 Qorvo Us, Inc. Envelope tracking amplifier apparatus
CN114128137A (zh) 2019-07-25 2022-03-01 Qorvo美国公司 多模式功率管理设备
US12101063B2 (en) 2021-02-19 2024-09-24 Qorvo Us, Inc. Distributed power management apparatus
US12047066B2 (en) * 2021-08-31 2024-07-23 Viavi Solutions Inc. Hybrid digital-analog automatic level control (ALC) using vector signal generators (VSG)
US11906992B2 (en) 2021-09-16 2024-02-20 Qorvo Us, Inc. Distributed power management circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2230758A1 (en) * 2009-03-19 2010-09-22 Fujitsu Limited Power amplifying device and power amplifying method
GB2479579A (en) * 2010-04-15 2011-10-19 Nujira Ltd Timing alignment for an RF amplifier with a modulated supply

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3985649B2 (ja) 2002-10-03 2007-10-03 松下電器産業株式会社 送信方法及び送信装置
WO2004032345A1 (ja) * 2002-10-03 2004-04-15 Matsushita Electric Industrial Co., Ltd. 送信方法及び送信装置
JP4230238B2 (ja) 2003-02-06 2009-02-25 パナソニック株式会社 送信装置及びその調整方法
US7372917B2 (en) * 2004-08-25 2008-05-13 Broadcom Corporation Digital algorithm for on-line ACPR optimization in polar RF transmitters
JP2007189438A (ja) * 2006-01-12 2007-07-26 Fujitsu Ltd タイミング調整装置及びタイミング調整方法
EP2226932B1 (en) * 2009-03-02 2013-10-16 Alcatel Lucent Method for amplifying a signal by a power amplifier, power amplifier system, device, computer program product, and digital storage medium thereof
JP2010219326A (ja) 2009-03-17 2010-09-30 Elpida Memory Inc 半導体記憶装置及びその製造方法
JP5655654B2 (ja) * 2011-03-18 2015-01-21 富士通株式会社 増幅装置
JP5638132B2 (ja) 2011-06-03 2014-12-10 京セラ株式会社 送信機および信号処理方法
US8718579B2 (en) * 2012-03-04 2014-05-06 Quantance, Inc. Envelope tracking power amplifier system with delay calibration

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2230758A1 (en) * 2009-03-19 2010-09-22 Fujitsu Limited Power amplifying device and power amplifying method
GB2479579A (en) * 2010-04-15 2011-10-19 Nujira Ltd Timing alignment for an RF amplifier with a modulated supply

Also Published As

Publication number Publication date
US10075134B2 (en) 2018-09-11
CN105229920B (zh) 2019-05-10
JP2016519545A (ja) 2016-06-30
CN105229920A (zh) 2016-01-06
GB201309236D0 (en) 2013-07-03
US20160094185A1 (en) 2016-03-31
EP3000173A1 (en) 2016-03-30
WO2014187918A1 (en) 2014-11-27

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20160519 AND 20160525

WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)