JP6022262B2 - 増幅回路および帰還回路 - Google Patents
増幅回路および帰還回路 Download PDFInfo
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- JP6022262B2 JP6022262B2 JP2012189400A JP2012189400A JP6022262B2 JP 6022262 B2 JP6022262 B2 JP 6022262B2 JP 2012189400 A JP2012189400 A JP 2012189400A JP 2012189400 A JP2012189400 A JP 2012189400A JP 6022262 B2 JP6022262 B2 JP 6022262B2
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- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
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- 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
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
- H03F1/486—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with IC amplifier blocks
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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
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
- H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
- H03F3/087—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light with IC amplifier blocks
-
- 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
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- 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
- H03F2200/135—Indexing scheme relating to amplifiers there being a feedback over one or more internal stages in the global amplifier
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/144—Indexing scheme relating to amplifiers the feedback circuit of the amplifier stage comprising a passive resistor and passive capacitor
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/261—Amplifier which being suitable for instrumentation applications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/36—Indexing scheme relating to amplifiers the amplifier comprising means for increasing the bandwidth
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/405—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising more than three power stages
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/408—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising three power stages
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/411—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power 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
- H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
-
- 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
- H03F2203/45512—Indexing scheme relating to differential amplifiers the FBC comprising one or more capacitors, not being switched capacitors, and being coupled between the LC and the IC
-
- 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
- H03F2203/45526—Indexing scheme relating to differential amplifiers the FBC comprising a resistor-capacitor combination and being coupled between the LC and the IC
-
- 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
- H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC
-
- 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
- H03F2203/45536—Indexing scheme relating to differential amplifiers the FBC comprising a switch and being coupled between the LC and the IC
-
- 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
- H03F2203/45544—Indexing scheme relating to differential amplifiers the IC comprising one or more capacitors, e.g. coupling capacitors
-
- 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
- H03F2203/45548—Indexing scheme relating to differential amplifiers the IC comprising one or more capacitors as shunts to earth or as short circuit between inputs
-
- 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
- H03F2203/45594—Indexing scheme relating to differential amplifiers the IC comprising one or more resistors, which are not biasing resistor
-
- 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
- H03F2203/45612—Indexing scheme relating to differential amplifiers the IC comprising one or more input source followers as input stages in the IC
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Description
ド用のトランスインピーダンスアンプを構成することを特徴とする、
(1)ないし(6)のいずれかに記載、または(9)に記載の増幅回路。
逆に利得抵抗Rgが小さいと低周波数領域における利得は大きくなる。しかし、利得抵抗Rgがある限界以下(一例として50〔Ω〕以下)にまで小さくなると、低周波数領域における利得はそれ以上大きくなることができなくなる。
4、6、8、10、12 帰還回路
Claims (10)
- 個別に負帰還をかけるとともに直列に接続された複数の増幅器と、
前記複数の増幅器に含まれる出力側の増幅器の出力側と入力側の増幅器の入力側に接続された帰還手段とを含み、
前記複数の増幅器の各々は反転増幅器または非反転増幅器であり、前記複数の増幅器は奇数個の反転増幅器を含むことを特徴とする、
増幅回路。 - 前記複数の増幅器は、非反転増幅器である前記入力側の増幅器と、反転増幅器である前記出力側の増幅器の、2個の増幅器で構成されることを特徴とする、
請求項1に記載の増幅回路。 - 直列に接続された複数の増幅器と、
前記複数の増幅器に含まれる出力側の増幅器の出力側と入力側の増幅器の入力側に接続された帰還手段を含み、
前記複数の増幅器に含まれる入力側の増幅器は増幅素子を用いたフォロア回路または増幅素子による増幅器であり、
前記複数の増幅器に含まれる入力側の増幅器以外の増幅器は、個別に負帰還をかけた反転増幅器または個別に負帰還をかけた非反転増幅器であり、
前記複数の増幅器に含まれる入力側の増幅器が増幅素子を用いたフォロア回路または非反転の増幅素子による増幅器のときには個別に負帰還をかけた反転増幅器は奇数個であり、
前記複数の増幅器に含まれる入力側の増幅器が反転の増幅素子による増幅器のときには個別に負帰還をかけた反転増幅器はゼロまたは偶数個であり、かつ個別に負帰還をかけた非反転増幅器と個別に負帰還をかけた反転増幅器との和が1個以上であることを特徴とする、
増幅回路。 - 前記入力側の増幅器の入力電圧をバッファ増幅器と積分器を介して反転加算して、
前記増幅素子の入力と出力の間の電位差を補償することを特徴とする、
請求項3に記載の増幅回路。 - 回路構成が前記入力側の増幅器と同じであり、入力電位が固定された他の回路をさらに備え、
前記入力側の増幅器の前記増幅素子の出力から前記他の回路の増幅素子の出力を差し引くことにより、または前記他の回路の前記増幅素子の出力から前記入力側の増幅器の前記増幅素子の出力を差し引くことにより、前記入力側の増幅器の前記増幅素子の入力と出力の間の電位差を補償することを特徴とする、
請求項3に記載の増幅回路。 - 前記出力側の増幅器の出力側に出力バッファを備えることを特徴とする、
請求項1ないし請求項5のいずれかに記載の増幅回路。 - 増幅器とともに用いられる帰還回路であって、第1の抵抗と、第1のコンデンサと、バッファ増幅器と、第2の抵抗と第2のコンデンサの並列回路と、を備え、
前記増幅器の出力側に前記第1の抵抗の一端が接続され、この第1の抵抗の他端に前記第1のコンデンサの一端とバッファ増幅器の入力側が接続され、前記第1のコンデンサの他端が交流的に接地され、前記バッファ増幅器の出力側に、前記並列回路の一端が接続され、前記並列回路の他端が前記増幅器の入力側に接続され、前記第1の抵抗の抵抗値と前記第1のコンデンサの容量値の積を前記第2の抵抗の抵抗値と前記第2のコンデンサの容量値の積に等しくしたことを特徴とする、
帰還回路。 - 増幅器とともに用いられる帰還回路であって、第1の抵抗と、第1のコンデンサと、第2の抵抗と第2のコンデンサの並列回路と、を備え、
前記増幅器の出力側に前記第1の抵抗の一端が接続され、この第1の抵抗の他端に前記第1のコンデンサの一端と前記並列回路の一端が接続され、前記第1のコンデンサの他端が交流的に接地され、前記並列回路の他端が前記増幅器の入力側に接続され、前記第1の抵抗の抵抗値と前記第1のコンデンサの容量値の積を前記第2の抵抗の抵抗値と前記第2のコンデンサの容量値の積に等しくしたことを特徴とする、
帰還回路。 - 帰還手段として、請求項7または請求項8に記載の前記帰還回路を備えることを特徴とする、
増幅回路。 - 前記増幅回路は、電流増幅器、電圧増幅器、チャージアンプ、フォトダイオード用のトランスインピーダンスアンプを構成することを特徴とする、
請求項1ないし請求項6のいずれかに記載、または請求項9に記載の増幅回路。
Priority Applications (1)
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JP2012189400A JP6022262B2 (ja) | 2011-09-01 | 2012-08-30 | 増幅回路および帰還回路 |
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JP2011190462 | 2011-09-01 | ||
JP2011190462 | 2011-09-01 | ||
JP2012189400A JP6022262B2 (ja) | 2011-09-01 | 2012-08-30 | 増幅回路および帰還回路 |
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JP2013066176A JP2013066176A (ja) | 2013-04-11 |
JP6022262B2 true JP6022262B2 (ja) | 2016-11-09 |
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US (2) | US9024686B2 (ja) |
EP (2) | EP2849340A1 (ja) |
JP (1) | JP6022262B2 (ja) |
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JP5836921B2 (ja) * | 2012-12-18 | 2015-12-24 | 株式会社東芝 | 電力増幅回路 |
JP6398056B2 (ja) * | 2013-09-30 | 2018-10-03 | 株式会社エヌエフ回路設計ブロック | 電流帰還型増幅回路 |
US9453880B2 (en) * | 2014-01-24 | 2016-09-27 | Keithley Instruments, Inc. | Active shunt source-measure unit (SMU) circuit |
GB2526857B (en) * | 2014-06-05 | 2016-09-07 | Thermo Fisher Scient (Bremen) Gmbh | A transimpedance amplifier |
JP6296965B2 (ja) | 2014-11-28 | 2018-03-20 | 株式会社アドバンテスト | 電流測定回路および塩基配列解析装置 |
JP6895224B2 (ja) * | 2016-03-29 | 2021-06-30 | 株式会社エヌエフホールディングス | 光電変換素子用電流増幅装置 |
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CN106972835B (zh) * | 2017-02-28 | 2020-04-28 | 华为技术有限公司 | 电路*** |
WO2018228772A1 (en) * | 2017-06-13 | 2018-12-20 | Firecomms Limited | A low-noise transimpedance amplifier incorporating a regulator |
JP6653899B1 (ja) * | 2018-05-08 | 2020-02-26 | 株式会社エヌエフ回路設計ブロック | 静電容量測定回路及び静電容量変位計 |
CN108600916B (zh) * | 2018-05-14 | 2021-01-01 | 祁家堃 | 音响电路及*** |
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US11431308B2 (en) * | 2019-04-05 | 2022-08-30 | Baker Hughes Oilfield Operations Llc | Differential noise cancellation |
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-
2012
- 2012-08-30 EP EP14191591.8A patent/EP2849340A1/en not_active Withdrawn
- 2012-08-30 EP EP12182338.9A patent/EP2566048B1/en active Active
- 2012-08-30 JP JP2012189400A patent/JP6022262B2/ja active Active
- 2012-08-30 US US13/599,637 patent/US9024686B2/en active Active
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2014
- 2014-01-23 US US14/162,193 patent/US9252720B2/en active Active
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Publication number | Publication date |
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EP2566048B1 (en) | 2019-01-02 |
EP2849340A1 (en) | 2015-03-18 |
EP2566048A2 (en) | 2013-03-06 |
JP2013066176A (ja) | 2013-04-11 |
US9252720B2 (en) | 2016-02-02 |
EP2566048A3 (en) | 2014-04-30 |
US9024686B2 (en) | 2015-05-05 |
US20130057341A1 (en) | 2013-03-07 |
US20140132342A1 (en) | 2014-05-15 |
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