TW200719586A - Power amplifier and its idling current setting circuit - Google Patents

Power amplifier and its idling current setting circuit

Info

Publication number
TW200719586A
TW200719586A TW095126964A TW95126964A TW200719586A TW 200719586 A TW200719586 A TW 200719586A TW 095126964 A TW095126964 A TW 095126964A TW 95126964 A TW95126964 A TW 95126964A TW 200719586 A TW200719586 A TW 200719586A
Authority
TW
Taiwan
Prior art keywords
current setting
current
power amplifier
setting circuit
idling current
Prior art date
Application number
TW095126964A
Other languages
English (en)
Inventor
Kazuhisa Ishiguro
Original Assignee
Niigata Seimitsu Co 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 Niigata Seimitsu Co Ltd filed Critical Niigata Seimitsu Co Ltd
Publication of TW200719586A publication Critical patent/TW200719586A/zh

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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
    • 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/307—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in push-pull amplifiers
    • H03F1/308—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in push-pull amplifiers using MOSFET
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/301—CMOS common drain output SEPP amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/3022—CMOS common source output SEPP amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/3022—CMOS common source output SEPP amplifiers
    • H03F3/3028—CMOS common source output SEPP amplifiers with symmetrical driving of the end stage
    • H03F3/303—CMOS common source output SEPP amplifiers with symmetrical driving of the end stage using opamps as driving stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
    • H03F2203/30061—One or more current mirrors are used as bias circuit or stages for the push or pull stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45596—Indexing scheme relating to differential amplifiers the IC comprising one or more biasing resistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45726—Indexing scheme relating to differential amplifiers the LC comprising more than one switch, which are not cross coupled

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
TW095126964A 2005-11-04 2006-07-24 Power amplifier and its idling current setting circuit TW200719586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005320448A JP2007129512A (ja) 2005-11-04 2005-11-04 パワーアンプおよびそのアイドリング電流設定回路

Publications (1)

Publication Number Publication Date
TW200719586A true TW200719586A (en) 2007-05-16

Family

ID=38005550

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095126964A TW200719586A (en) 2005-11-04 2006-07-24 Power amplifier and its idling current setting circuit

Country Status (5)

Country Link
US (1) US7602248B2 (zh)
JP (1) JP2007129512A (zh)
CN (1) CN101366173B (zh)
TW (1) TW200719586A (zh)
WO (1) WO2007052389A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4849029B2 (ja) * 2007-07-23 2011-12-28 三菱電機株式会社 電力増幅器
US8212619B2 (en) * 2009-07-23 2012-07-03 Qualcomm, Incorporated Split-biased current scalable buffer
US8368468B2 (en) * 2010-05-20 2013-02-05 Himax Analogic, Inc. Error amplifier and LED circuit comprising the same
GB2481069B (en) 2010-06-11 2017-06-07 Snaptrack Inc Improved crossover performance of power amplifier
WO2014139151A1 (en) * 2013-03-15 2014-09-18 Silicon Image, Inc. Line driver with separate pre-driver for feed-through capacitance
US10063193B2 (en) * 2016-04-13 2018-08-28 Semiconductor Ideas To The Market (Itom) B.V. Class D amplifier
US10348303B2 (en) * 2016-08-26 2019-07-09 Semiconductor Components Industries, Llc Differential level shift circuit
US10902892B2 (en) * 2019-03-18 2021-01-26 Micron Technology, Inc. Input buffer circuit having differential amplifier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61108208A (ja) * 1984-11-01 1986-05-26 Sanyo Electric Co Ltd プツシユプル増幅回路
JP3567559B2 (ja) * 1995-11-02 2004-09-22 ミツミ電機株式会社 増幅回路
TW346705B (en) * 1996-06-24 1998-12-01 Toshiba Co Ltd Amplifier circuit
JP3508813B2 (ja) * 1997-06-27 2004-03-22 株式会社ケンウッド Ａ級アンプのアイドリング調整回路
JP3150101B2 (ja) * 1998-04-20 2001-03-26 日本電気アイシーマイコンシステム株式会社 演算増幅回路
JP3560900B2 (ja) * 2000-05-22 2004-09-02 シャープ株式会社 パワーアンプ

Also Published As

Publication number Publication date
US20090115519A1 (en) 2009-05-07
CN101366173A (zh) 2009-02-11
CN101366173B (zh) 2012-03-28
US7602248B2 (en) 2009-10-13
JP2007129512A (ja) 2007-05-24
WO2007052389A1 (ja) 2007-05-10

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