JP2016505230A5 - - Google Patents

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Publication number
JP2016505230A5
JP2016505230A5 JP2015555733A JP2015555733A JP2016505230A5 JP 2016505230 A5 JP2016505230 A5 JP 2016505230A5 JP 2015555733 A JP2015555733 A JP 2015555733A JP 2015555733 A JP2015555733 A JP 2015555733A JP 2016505230 A5 JP2016505230 A5 JP 2016505230A5
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JP
Japan
Prior art keywords
power supply
current
offset current
high frequency
voltage
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.)
Granted
Application number
JP2015555733A
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English (en)
Japanese (ja)
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JP2016505230A (ja
JP6452623B2 (ja
Filing date
Publication date
Priority claimed from GB1301852.8A external-priority patent/GB2510393A/en
Application filed filed Critical
Publication of JP2016505230A publication Critical patent/JP2016505230A/ja
Publication of JP2016505230A5 publication Critical patent/JP2016505230A5/ja
Application granted granted Critical
Publication of JP6452623B2 publication Critical patent/JP6452623B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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JP2015555733A 2013-02-01 2014-01-31 包絡線追跡変調器の線形増幅器の改善された効率 Expired - Fee Related JP6452623B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1301852.8A GB2510393A (en) 2013-02-01 2013-02-01 An envelope-tracking amplifier with a linear amplifier having an output offset current for improved efficiency
GB1301852.8 2013-02-01
PCT/EP2014/051967 WO2014118347A1 (en) 2013-02-01 2014-01-31 Improved efficiency for linear amplifier of envelope tracking modulator

Publications (3)

Publication Number Publication Date
JP2016505230A JP2016505230A (ja) 2016-02-18
JP2016505230A5 true JP2016505230A5 (enExample) 2017-02-23
JP6452623B2 JP6452623B2 (ja) 2019-01-16

Family

ID=47988592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015555733A Expired - Fee Related JP6452623B2 (ja) 2013-02-01 2014-01-31 包絡線追跡変調器の線形増幅器の改善された効率

Country Status (7)

Country Link
US (1) US9634612B2 (enExample)
EP (2) EP3667905B1 (enExample)
JP (1) JP6452623B2 (enExample)
KR (1) KR20150117678A (enExample)
CN (2) CN105103441B (enExample)
GB (1) GB2510393A (enExample)
WO (1) WO2014118347A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106464149B (zh) 2013-12-12 2019-04-23 俄亥俄州创新基金会 用于提高的rf-dc整流效率的谐波采集器
US9530719B2 (en) 2014-06-13 2016-12-27 Skyworks Solutions, Inc. Direct die solder of gallium arsenide integrated circuit dies and methods of manufacturing gallium arsenide wafers
US9445371B2 (en) * 2014-08-13 2016-09-13 Skyworks Solutions, Inc. Apparatus and methods for wideband envelope tracking systems
US10103693B2 (en) 2015-09-30 2018-10-16 Skyworks Solutions, Inc. Power amplifier linearization system and method
US10110169B2 (en) 2016-09-14 2018-10-23 Skyworks Solutions, Inc. Apparatus and methods for envelope tracking systems with automatic mode selection
CN108206703B (zh) * 2016-12-20 2020-05-08 中芯国际集成电路制造(上海)有限公司 射频发射电路、发射机及用户终端
US10236831B2 (en) 2017-05-12 2019-03-19 Skyworks Solutions, Inc. Envelope trackers providing compensation for power amplifier output load variation
US10615757B2 (en) 2017-06-21 2020-04-07 Skyworks Solutions, Inc. Wide bandwidth envelope trackers
US10516368B2 (en) 2017-06-21 2019-12-24 Skyworks Solutions, Inc. Fast envelope tracking systems for power amplifiers
KR102454811B1 (ko) * 2017-07-18 2022-10-13 삼성전기주식회사 옵셋 제거 기능이 개선된 엔벨로프-추적 전류 바이어스 회로 및 파워 증폭 장치
US11424718B2 (en) 2018-03-01 2022-08-23 Telefonaktiebolaget Lm Ericsson (Publ) Envelope tracking supply modulator for power amplifier
US11581854B2 (en) * 2018-04-26 2023-02-14 Mediatek Inc. Envelope tracking supply modulator topology for wipe-bandwidth radio frequency transmitter

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
US6084468A (en) * 1997-10-06 2000-07-04 Motorola, Inc. Method and apparatus for high efficiency wideband power amplification
US6590940B1 (en) 1999-05-17 2003-07-08 Ericsson Inc. Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform
NO321759B1 (no) * 2003-10-24 2006-07-03 Nera Asa Effektiv kraftforsyning for hurtigvarierende effektbehov
GB2424137B (en) * 2005-03-11 2007-02-14 Audio Partnership Plc Amplifier
GB2440772B (en) * 2006-08-08 2011-11-30 Asahi Chemical Micro Syst Envelope modulator
WO2008105073A1 (ja) * 2007-02-27 2008-09-04 Panasonic Corporation 送信装置
GB0708733D0 (en) * 2007-05-04 2007-06-13 Nokia Corp A device
US7783269B2 (en) 2007-09-20 2010-08-24 Quantance, Inc. Power amplifier controller with polar transmitter
GB2457764B (en) 2008-02-28 2013-01-23 Nujira Ltd Improved control loop for amplification stage
US7808323B2 (en) * 2008-05-23 2010-10-05 Panasonic Corporation High-efficiency envelope tracking systems and methods for radio frequency power amplifiers
JP2010213227A (ja) * 2009-03-12 2010-09-24 Fujitsu Ltd 電源回路及びこれを用いた無線通信回路
JP2011009923A (ja) * 2009-06-24 2011-01-13 Hitachi Kokusai Electric Inc 包絡線追跡電源の電源回路、電力増幅器及び無線基地局
GB2488124B (en) * 2011-02-15 2014-01-08 Nujira Ltd Control of cross-over point for a push-pull amplifier
JP5621649B2 (ja) 2011-02-18 2014-11-12 富士通株式会社 送信装置
CN102684494B (zh) * 2011-03-17 2014-10-29 中兴通讯股份有限公司 一种电源调制方法及电源调制器
US8698558B2 (en) * 2011-06-23 2014-04-15 Qualcomm Incorporated Low-voltage power-efficient envelope tracker
WO2013115039A1 (ja) * 2012-02-03 2013-08-08 日本電気株式会社 電源装置及びこれを用いた送信装置
US8854139B2 (en) * 2012-05-30 2014-10-07 Nujira Limited Regulated cascode current mirror scheme for transconductance amplifiers

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