GB201509186D0 - Controlled start-up of buck enabled envelope tracking modulator - Google Patents

Controlled start-up of buck enabled envelope tracking modulator

Info

Publication number
GB201509186D0
GB201509186D0 GBGB1509186.1A GB201509186A GB201509186D0 GB 201509186 D0 GB201509186 D0 GB 201509186D0 GB 201509186 A GB201509186 A GB 201509186A GB 201509186 D0 GB201509186 D0 GB 201509186D0
Authority
GB
United Kingdom
Prior art keywords
buck
enabled
envelope tracking
controlled start
tracking modulator
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Withdrawn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
GBGB1509186.1A
Other versions
GB2538775A (en
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.)
SnapTrack Inc
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 GB1509186.1A priority Critical patent/GB2538775A/en
Publication of GB201509186D0 publication Critical patent/GB201509186D0/en
Priority to PCT/US2016/031989 priority patent/WO2016191104A1/en
Publication of GB2538775A publication Critical patent/GB2538775A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211Modifications 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
    • H03F1/0216Continuous control
    • H03F1/0222Continuous control by using a signal derived from the input signal
    • H03F1/0227Continuous control by using a signal derived from the input signal using supply converters
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217Class D power amplifiers; Switching amplifiers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211Modifications 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
    • H03F1/0216Continuous control
    • H03F1/0222Continuous control by using a signal derived from the input signal
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H03F1/0266Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A by using a signal derived from the input signal
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/102A non-specified detector of a signal envelope being used in an amplifying circuit
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/432Two or more amplifiers of different type are coupled in parallel at the input or output, e.g. a class D and a linear amplifier, a class B and a class A amplifier
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/504Indexing 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/555A voltage generating circuit being realised for biasing different circuit elements
GB1509186.1A 2015-05-28 2015-05-28 Controlled start-up of buck enabled envelope tracking modulator Withdrawn GB2538775A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1509186.1A GB2538775A (en) 2015-05-28 2015-05-28 Controlled start-up of buck enabled envelope tracking modulator
PCT/US2016/031989 WO2016191104A1 (en) 2015-05-28 2016-05-12 Controlled start-up of buck enabled envelope tracking modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1509186.1A GB2538775A (en) 2015-05-28 2015-05-28 Controlled start-up of buck enabled envelope tracking modulator

Publications (2)

Publication Number Publication Date
GB201509186D0 true GB201509186D0 (en) 2015-07-15
GB2538775A GB2538775A (en) 2016-11-30

Family

ID=53677355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1509186.1A Withdrawn GB2538775A (en) 2015-05-28 2015-05-28 Controlled start-up of buck enabled envelope tracking modulator

Country Status (2)

Country Link
GB (1) GB2538775A (en)
WO (1) WO2016191104A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11448685B2 (en) 2020-08-06 2022-09-20 Innoscience (Zhuhai) Technology Co., Ltd. Device and method for testing semiconductor devices

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2345212B (en) * 1997-12-31 2000-11-29 Motorola Inc Device having a tracking power converter for providing a linear power amplifier
US8803605B2 (en) * 2011-02-01 2014-08-12 Mediatek Singapore Pte. Ltd. Integrated circuit, wireless communication unit and method for providing a power supply
US8952753B2 (en) * 2012-02-17 2015-02-10 Quantance, Inc. Dynamic power supply employing a linear driver and a switching regulator
US9069365B2 (en) * 2012-02-18 2015-06-30 R2 Semiconductor, Inc. DC-DC converter enabling rapid output voltage changes
WO2014026178A1 (en) * 2012-08-10 2014-02-13 Texas Instruments Incorporated Switched mode assisted linear regulator
US9207692B2 (en) * 2012-10-18 2015-12-08 Rf Micro Devices, Inc. Transitioning from envelope tracking to average power tracking
US9300252B2 (en) * 2013-01-24 2016-03-29 Rf Micro Devices, Inc. Communications based adjustments of a parallel amplifier power supply
US9088247B2 (en) * 2013-02-15 2015-07-21 St-Ericsson Sa Method and apparatus for a multi-standard, multi-mode, dynamic, DC-DC converter for radio frequency power amplifiers

Also Published As

Publication number Publication date
WO2016191104A1 (en) 2016-12-01
GB2538775A (en) 2016-11-30

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Legal Events

Date Code Title Description
COOA Change in applicant's name or ownership of the application

Owner name: SNAPTRACK, INC.

Free format text: FORMER OWNER: NUJIRA LIMITED

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