JP2017212735A - 低い歪みを有するトランスコンダクタンス増幅器 - Google Patents
低い歪みを有するトランスコンダクタンス増幅器 Download PDFInfo
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- 238000000034 method Methods 0.000 claims description 7
- 230000005669 field effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 5
- 238000010168 coupling process Methods 0.000 claims 5
- 238000005859 coupling reaction Methods 0.000 claims 5
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- 238000010586 diagram Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- 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
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
- H03F3/45174—Mirror types
-
- 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
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3217—Modifications of amplifiers to reduce non-linear distortion in single ended push-pull 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
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3211—Modifications of amplifiers to reduce non-linear distortion in differential amplifiers
-
- 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
- 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
- H03F3/3066—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output
- H03F3/3067—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output with asymmetrical driving of the end stage
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—Dc amplifiers in which all stages are dc-coupled
- H03F3/343—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only
- H03F3/3432—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only with bipolar transistors
- H03F3/3435—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only with bipolar transistors using Darlington amplifiers
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- 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
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
-
- 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
- H03F3/45273—Mirror types
-
- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/93—Two or more transistors are coupled in a Darlington composite transistor configuration, all transistors being of the same type
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- 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
- H03F2203/30105—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor the pull transistor of the asymmetrically driven SEPP amplifier being a driven current mirror
-
- 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
- H03F2203/30138—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor the push transistor of the asymmetrically driven SEPP amplifier being a driven current mirror
-
- 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
- H03F2203/45026—One or more current sources are added to the amplifying transistors in the differential amplifier
-
- 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
- H03F2203/45031—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are compositions of multiple transistors
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- 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
- H03F2203/45112—Indexing scheme relating to differential amplifiers the biasing of the differential amplifier being controlled from the input or the output signal
-
- 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
- H03F2203/45146—At least one op amp being added at the input of a dif amp
-
- 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
- H03F2203/45202—Indexing scheme relating to differential amplifiers the differential amplifier contains only resistors in the load
-
- 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
- H03F2203/45288—Differential amplifier with circuit arrangements to enhance the transconductance
Abstract
Description
Iout=gmVin
式中、gmは、トランスコンダクタンス増幅器106のゲインである。本明細書で説明される実施形態は、トランスコンダクタンス増幅器106のためのさまざまな構成を提示する。
Iout=−Iref=−Vin/Rref
gm=−1/Rref
Iout=−gmVin−Ib
Iout=Ib−(Ib+Iin)=−Vin/Rref
Claims (19)
- 回路であって、
電圧源と、
前記電圧源に結合された基準抵抗器と、
入力段であって、
前記基準抵抗器に結合された演算増幅器、
前記演算増幅器によって駆動されるように結合されたトランジスタ、及び
前記トランジスタ及び前記演算増幅器に結合されたバイアス電流源、を含む入力段と、
接地負荷抵抗器を含む出力段と、
一対の電流ミラーであって、各々が前記入力段を前記出力段に結合する、電流ミラーと、を備える、回路。 - 前記電流ミラーのうちの1つ以上が、バイポーラ接合トランジスタの第1及び第2のアレイを更に含む、請求項1に記載の回路。
- 前記出力段に供給される電流が、前記電流ミラーの前記第1及び第2のアレイのバイアス電流の差に等しい、請求項2に記載の回路。
- 前記トランジスタが、第1のトランジスタであり、前記入力段を前記一対の電流ミラーに接続するダーリントンペアとして前記第1のトランジスタと共に配設される第2のトランジスタを更に備える、請求項1に記載の回路。
- 集合的にダーリントンペアとして配設される前記トランジスタが、ユニティゲインを有する、請求項4に記載の回路。
- 前記演算増幅器の正端子が、接地され、前記演算増幅器が、前記演算増幅器の負入力端子において仮想接地を提供するように構成される、請求項1に記載の回路。
- 前記電圧源が、第1の電圧源であり、前記演算増幅器の入力端子が、それぞれ、第2及び第3の電圧源に直接結合される、請求項1に記載の回路。
- 前記演算増幅器によって駆動されるように結合された前記トランジスタが、バイポーラ接合トランジスタである、請求項1に記載の回路。
- 前記演算増幅器によって駆動されるように結合された前記トランジスタが、電界効果トランジスタである、請求項1に記載の回路。
- 前記入力段が、電流を前記負荷抵抗器の中へプルするプル入力段である、請求項1に記載の回路。
- 前記一対の電流ミラーが、一対の電流減衰ミラーである、請求項1に記載の回路。
- 前記一対の電流ミラーが、一対の電流ゲインミラーである、請求項1に記載の回路。
- 前記回路が、リニアトランスコンダクタンス増幅器を含む、請求項1に記載の回路。
- 回路を動作させる方法であって、
入力電圧源を基準抵抗器に結合させることによって入力電流源を作り出すことと、
前記電流源を仮想接地に結合することと、
バイアス抵抗器を前記仮想接地に結合することと、
前記仮想接地を、前記バイアス抵抗器を介してバイアス電流を提供する電流ミラーに結合することと、
前記バイアス電流を負荷抵抗器に供給することと、
前記入力電流源を変調することによって前記バイアス電流を制御することと、を含む、方法。 - 前記仮想接地が、演算増幅器によって確立される、請求項14に記載の方法。
- 前記電流ミラーが、バイポーラ接合トランジスタの第1及び第2のアレイを含む、請求項14に記載の方法。
- 回路であって、
電流源と、
前記電流源に結合されたトランスコンダクタンス増幅器であって、仮想接地入力段を有する、前記トランスコンダクタンス増幅器と、
前記トランスコンダクタンス増幅器に結合された出力段であって、接地負荷を有する、前記出力段と、を備える、回路。 - 前記仮想接地入力段と前記出力段との間に結合された一対の電流ミラーを更に備える、請求項17に記載の回路。
- 前記仮想接地入力段が、ダーリントンペアとして配設される2つのバイポーラ接合トランジスタを含む、請求項17に記載の回路。
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US15/162,963 | 2016-05-24 | ||
US15/162,963 US9929705B2 (en) | 2016-05-24 | 2016-05-24 | Transconductance amplifier having low distortion |
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JP2017212735A true JP2017212735A (ja) | 2017-11-30 |
JP7095958B2 JP7095958B2 (ja) | 2022-07-05 |
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US (1) | US9929705B2 (ja) |
EP (1) | EP3249810B1 (ja) |
JP (1) | JP7095958B2 (ja) |
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Cited By (1)
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JP2019184496A (ja) * | 2018-04-13 | 2019-10-24 | 新日本無線株式会社 | レゾルバ励磁回路 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US10270393B1 (en) * | 2018-03-22 | 2019-04-23 | Linear Technology Holding Llc | Transconductance amplifier with nonlinear transconductance and low quiescent current |
US11323085B2 (en) * | 2019-09-04 | 2022-05-03 | Analog Devices International Unlimited Company | Voltage-to-current converter with complementary current mirrors |
KR102531301B1 (ko) * | 2019-09-26 | 2023-05-10 | 선전 구딕스 테크놀로지 컴퍼니, 리미티드 | 상호컨덕턴스 증폭기 및 칩 |
US11272598B2 (en) * | 2020-02-07 | 2022-03-08 | Analog Devices International Unlimited Company | Transconductance circuits and methods |
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JPH067310U (ja) * | 1992-06-25 | 1994-01-28 | 明 永井 | 増幅器 |
JPH06152257A (ja) * | 1992-11-10 | 1994-05-31 | Nec Corp | 電圧電流変換回路 |
JPH06169225A (ja) * | 1992-11-30 | 1994-06-14 | Sanyo Electric Co Ltd | 電圧電流変換回路 |
JPH0652223U (ja) * | 1992-06-29 | 1994-07-15 | 明 永井 | 電流電圧変換器 |
JPH077337A (ja) * | 1993-06-16 | 1995-01-10 | Nec Corp | 両極性電圧/電流変換回路 |
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US6411164B1 (en) * | 2000-08-14 | 2002-06-25 | Intersil Americas Inc. | Precision low power operational amplifier with gain invariant bandwith |
JP2010056643A (ja) * | 2008-08-26 | 2010-03-11 | Mitsutoyo Corp | モータドライバ回路 |
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-
2016
- 2016-05-24 US US15/162,963 patent/US9929705B2/en active Active
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2017
- 2017-05-23 JP JP2017101486A patent/JP7095958B2/ja active Active
- 2017-05-24 EP EP17172869.4A patent/EP3249810B1/en active Active
- 2017-05-24 CN CN201710373816.2A patent/CN107425817B/zh active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH067310U (ja) * | 1992-06-25 | 1994-01-28 | 明 永井 | 増幅器 |
JPH0652223U (ja) * | 1992-06-29 | 1994-07-15 | 明 永井 | 電流電圧変換器 |
JPH06152257A (ja) * | 1992-11-10 | 1994-05-31 | Nec Corp | 電圧電流変換回路 |
JPH06169225A (ja) * | 1992-11-30 | 1994-06-14 | Sanyo Electric Co Ltd | 電圧電流変換回路 |
JPH077337A (ja) * | 1993-06-16 | 1995-01-10 | Nec Corp | 両極性電圧/電流変換回路 |
US5973563A (en) * | 1997-12-10 | 1999-10-26 | National Semiconductor Corporation | High power output stage with temperature stable precisely controlled quiescent current and inherent short circuit protection |
US6411164B1 (en) * | 2000-08-14 | 2002-06-25 | Intersil Americas Inc. | Precision low power operational amplifier with gain invariant bandwith |
JP2010056643A (ja) * | 2008-08-26 | 2010-03-11 | Mitsutoyo Corp | モータドライバ回路 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019184496A (ja) * | 2018-04-13 | 2019-10-24 | 新日本無線株式会社 | レゾルバ励磁回路 |
JP7008568B2 (ja) | 2018-04-13 | 2022-01-25 | 新日本無線株式会社 | レゾルバ励磁回路 |
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Publication number | Publication date |
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CN107425817A (zh) | 2017-12-01 |
JP7095958B2 (ja) | 2022-07-05 |
US20170346454A1 (en) | 2017-11-30 |
US9929705B2 (en) | 2018-03-27 |
CN107425817B (zh) | 2023-04-07 |
EP3249810B1 (en) | 2022-11-02 |
EP3249810A1 (en) | 2017-11-29 |
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