DE602007000339D1 - Verstärkereinheit und Verfahren zur Fehlererkennung dafür - Google Patents

Verstärkereinheit und Verfahren zur Fehlererkennung dafür

Info

Publication number
DE602007000339D1
DE602007000339D1 DE602007000339T DE602007000339T DE602007000339D1 DE 602007000339 D1 DE602007000339 D1 DE 602007000339D1 DE 602007000339 T DE602007000339 T DE 602007000339T DE 602007000339 T DE602007000339 T DE 602007000339T DE 602007000339 D1 DE602007000339 D1 DE 602007000339D1
Authority
DE
Germany
Prior art keywords
fault detection
amplifier unit
therefor
detection therefor
amplifier
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.)
Active
Application number
DE602007000339T
Other languages
English (en)
Inventor
Akira Seino
Hiroaki Maeda
Takashi Ono
Yousuke Okazaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE602007000339D1 publication Critical patent/DE602007000339D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/207—A hybrid coupler being used as power measuring circuit at the output of an amplifier circuit
    • 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
    • H03F2200/471—Indexing scheme relating to amplifiers the voltage being sensed

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
DE602007000339T 2006-05-02 2007-04-27 Verstärkereinheit und Verfahren zur Fehlererkennung dafür Active DE602007000339D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006128271A JP4831571B2 (ja) 2006-05-02 2006-05-02 増幅器ユニット及びその故障検出方法

Publications (1)

Publication Number Publication Date
DE602007000339D1 true DE602007000339D1 (de) 2009-01-22

Family

ID=38522963

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007000339T Active DE602007000339D1 (de) 2006-05-02 2007-04-27 Verstärkereinheit und Verfahren zur Fehlererkennung dafür

Country Status (6)

Country Link
US (1) US7456687B2 (de)
EP (1) EP1852970B1 (de)
JP (1) JP4831571B2 (de)
KR (1) KR100845698B1 (de)
CN (1) CN100578919C (de)
DE (1) DE602007000339D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009232368A (ja) * 2008-03-25 2009-10-08 Fujitsu Ltd 増幅装置及び増幅器故障検出方法
DE102011079613A1 (de) * 2011-06-30 2013-01-03 Rohde & Schwarz Gmbh & Co. Kg Doherty-Verstärker mit Wirkungsgradoptimierung
JP6103035B2 (ja) * 2013-03-14 2017-03-29 日本電気株式会社 電力増幅器、故障検出方法
CN104333332B (zh) * 2013-07-22 2019-08-27 南京中兴新软件有限责任公司 一种Doherty功放的控制方法和装置
CN104168076B (zh) * 2014-08-29 2016-09-07 京信通信***（中国）有限公司 功放异常检测方法和***
CN104270103B (zh) * 2014-09-04 2018-02-13 京信通信***（中国）有限公司 预失真功放射频链路、射频功率放大器及其故障处理方法
KR101791638B1 (ko) * 2014-12-30 2017-10-30 주식회사 쏠리드 증폭 장치 및 이를 포함하는 중계 장치
CN106370220A (zh) * 2016-08-24 2017-02-01 王勇 自动化仪表故障检测***
JP6943104B2 (ja) * 2017-09-15 2021-09-29 日本電気株式会社 増幅装置、破損検出装置および破損検出方法
CN112861461B (zh) * 2021-03-05 2022-05-17 北京华大九天科技股份有限公司 一种用于电路仿真模型的异常检测方法及装置
CN114258099A (zh) * 2022-01-28 2022-03-29 Oppo广东移动通信有限公司 功率放大器pa故障隔离的方法、终端设备及存储介质
US20240089007A1 (en) * 2022-09-12 2024-03-14 Fujitsu Limited Mitigation of anomaly loss in an optical transmission system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0231469A (ja) * 1988-07-20 1990-02-01 Tokin Corp 静電誘導型トランジスタ装置の保護回路
JPH05304429A (ja) * 1992-04-24 1993-11-16 Fujitsu Ltd 並列運転増幅器とその異常検出回路
JPH0685554A (ja) * 1992-08-31 1994-03-25 Mitsubishi Electric Corp 半導体送信装置
US5418490A (en) 1994-03-01 1995-05-23 Tx Rx Systems, Inc. Failure responsive alternate amplifier and bypass system for communications amplifier
US5739723A (en) * 1995-12-04 1998-04-14 Motorola, Inc. Linear power amplifier using active bias for high efficiency and method thereof
US5757229A (en) * 1996-06-28 1998-05-26 Motorola, Inc. Bias circuit for a power amplifier
US5886575A (en) * 1997-09-30 1999-03-23 Motorola, Inc. Apparatus and method for amplifying a signal
KR100546491B1 (ko) * 2001-03-21 2006-01-26 학교법인 포항공과대학교 초고주파 도허티 증폭기의 출력 정합 장치
US6917246B2 (en) * 2001-09-10 2005-07-12 Skyworks Solutions, Inc. Doherty bias circuit to dynamically compensate for process and environmental variations
KR100553252B1 (ko) * 2002-02-01 2006-02-20 아바고테크놀로지스코리아 주식회사 휴대용 단말기의 전력 증폭 장치
KR100450744B1 (ko) * 2002-08-29 2004-10-01 학교법인 포항공과대학교 도허티 증폭기
JP4539225B2 (ja) * 2004-08-17 2010-09-08 富士通株式会社 増幅器
JP4387936B2 (ja) * 2004-12-13 2009-12-24 株式会社東芝 高周波用のドハティ型の高効率増幅器、およびその信号処理方法

Also Published As

Publication number Publication date
KR100845698B1 (ko) 2008-07-11
EP1852970A1 (de) 2007-11-07
CN100578919C (zh) 2010-01-06
EP1852970B1 (de) 2008-12-10
CN101068105A (zh) 2007-11-07
JP4831571B2 (ja) 2011-12-07
JP2007300528A (ja) 2007-11-15
KR20070107601A (ko) 2007-11-07
US20070285158A1 (en) 2007-12-13
US7456687B2 (en) 2008-11-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE