WO2021015618A3 - Amplifier with continuous gain control - Google Patents

Amplifier with continuous gain control Download PDF

Info

Publication number
WO2021015618A3
WO2021015618A3 PCT/NL2020/050481 NL2020050481W WO2021015618A3 WO 2021015618 A3 WO2021015618 A3 WO 2021015618A3 NL 2020050481 W NL2020050481 W NL 2020050481W WO 2021015618 A3 WO2021015618 A3 WO 2021015618A3
Authority
WO
WIPO (PCT)
Prior art keywords
current
amplifier
steering
gain control
feedback
Prior art date
Application number
PCT/NL2020/050481
Other languages
French (fr)
Other versions
WO2021015618A2 (en
Inventor
Michiel Antonius Petrus Pertijs
Euchul KANG
Original Assignee
Technische Universiteit Delft
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 Technische Universiteit Delft filed Critical Technische Universiteit Delft
Priority to EP20775961.4A priority Critical patent/EP4005089A2/en
Publication of WO2021015618A2 publication Critical patent/WO2021015618A2/en
Publication of WO2021015618A3 publication Critical patent/WO2021015618A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
    • 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
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3084—Automatic control in amplifiers having semiconductor devices in receivers or transmitters for electromagnetic waves other than radiowaves, e.g. lightwaves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency 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
    • H03F2203/45514—Indexing scheme relating to differential amplifiers the FBC comprising one or more 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
    • H03F2203/45522—Indexing scheme relating to differential amplifiers the FBC comprising one or more potentiometers
    • 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
    • H03F2203/45524—Indexing scheme relating to differential amplifiers the FBC comprising one or more active 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
    • H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

A variable gain amplifier with an amplifier (A), a current-steering circuit (CSC), a feedback network (FBN), and a gain control circuit (GCC). The current-steering circuit (CSC) divides an output current (Iout) of the amplifier (A) into a plurality of control currents (Ii), wherein the output current (Iout) is divided using associated current-steering fractions (αi), the current-steering fractions αi being determined using a control input from the gain control circuit (GCC). The feedback network (FBN) comprises a network of components and is arranged to provide the feedback current (Ifb) as a weighted sum of the control currents (Ii), in accordance with I fb = ΣN i =1 β i I ι , wherein βi are feedback factors, 0≤ βi ≤ 1, determined by the components in the feedback network (FBN). The gain control circuit (GCC) is arranged to control the associated current-steering fractions (αi) in a continuous time-varying manner, wherein at any time ΣN α=1 α i = 1.
PCT/NL2020/050481 2019-07-23 2020-07-22 Amplifier with continuous gain control WO2021015618A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20775961.4A EP4005089A2 (en) 2019-07-23 2020-07-22 Amplifier with continuous gain control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2023557A NL2023557B1 (en) 2019-07-23 2019-07-23 Amplifier with continuous gain control
NL2023557 2019-07-23

Publications (2)

Publication Number Publication Date
WO2021015618A2 WO2021015618A2 (en) 2021-01-28
WO2021015618A3 true WO2021015618A3 (en) 2021-04-15

Family

ID=67742918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2020/050481 WO2021015618A2 (en) 2019-07-23 2020-07-22 Amplifier with continuous gain control

Country Status (3)

Country Link
EP (1) EP4005089A2 (en)
NL (1) NL2023557B1 (en)
WO (1) WO2021015618A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115347876A (en) * 2022-10-17 2022-11-15 电子科技大学 Analog front-end circuit for receiving ultrasonic echo signals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03232310A (en) * 1989-11-02 1991-10-16 Kokusai Syst Kk Variable gain amplifier, cable line equalizer and dummy cable line
US5786730A (en) * 1994-03-08 1998-07-28 Stewart Hughes Limited Variable gain amplifier providing substantially uniform magnitude output signal
EP1427103A2 (en) * 1997-10-02 2004-06-09 Burr-Brown Corporation CMOS differential voltage controlled logarithmic attenuator and method
US20180278333A1 (en) * 2017-03-22 2018-09-27 Maxlinear, Inc Method and System For Continuous Gain Control In A Feedback Transimpedance Amplifier
US20180367111A1 (en) * 2017-06-20 2018-12-20 Butterfly Network, Inc. Amplifier with built in time gain compensation for ultrasound applications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6798291B2 (en) 2002-11-12 2004-09-28 Koninklijke Philips Electronics N.V. Variable gain current amplifier with a feedback loop including a differential pair
US20150280662A1 (en) 2014-03-27 2015-10-01 Texas Instruments Incorporated Time gain compensation circuit in an ultrasound receiver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03232310A (en) * 1989-11-02 1991-10-16 Kokusai Syst Kk Variable gain amplifier, cable line equalizer and dummy cable line
US5786730A (en) * 1994-03-08 1998-07-28 Stewart Hughes Limited Variable gain amplifier providing substantially uniform magnitude output signal
EP1427103A2 (en) * 1997-10-02 2004-06-09 Burr-Brown Corporation CMOS differential voltage controlled logarithmic attenuator and method
US20180278333A1 (en) * 2017-03-22 2018-09-27 Maxlinear, Inc Method and System For Continuous Gain Control In A Feedback Transimpedance Amplifier
US20180367111A1 (en) * 2017-06-20 2018-12-20 Butterfly Network, Inc. Amplifier with built in time gain compensation for ultrasound applications

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XIE H Y ET AL: "A SiGe HBT low noise variable gain amplifier with controllable feedback of a p-i-n diode", MICROWAVE CONFERENCE PROCEEDINGS (CJMW), 2011 CHINA-JAPAN JOINT, IEEE, 20 April 2011 (2011-04-20), pages 1 - 4, XP031876089, ISBN: 978-1-4577-0625-7 *

Also Published As

Publication number Publication date
EP4005089A2 (en) 2022-06-01
WO2021015618A2 (en) 2021-01-28
NL2023557B1 (en) 2021-02-10

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