CA2982449A1 - Magnetic coil power methods and apparatus - Google Patents

Magnetic coil power methods and apparatus Download PDF

Info

Publication number
CA2982449A1
CA2982449A1 CA2982449A CA2982449A CA2982449A1 CA 2982449 A1 CA2982449 A1 CA 2982449A1 CA 2982449 A CA2982449 A CA 2982449A CA 2982449 A CA2982449 A CA 2982449A CA 2982449 A1 CA2982449 A1 CA 2982449A1
Authority
CA
Canada
Prior art keywords
power
linear amplifier
gradient coil
voltage
output
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.)
Abandoned
Application number
CA2982449A
Other languages
English (en)
French (fr)
Inventor
William J. Mileski
Gregory L. Charvat
Jonathan M. Rothberg
Jeremy Christopher Jordan
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.)
Hyperfine Inc
Original Assignee
Hyperfine Research Inc
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 Hyperfine Research Inc filed Critical Hyperfine Research Inc
Publication of CA2982449A1 publication Critical patent/CA2982449A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • G01R33/3852—Gradient amplifiers; means for controlling the application of a gradient magnetic field to the sample, e.g. a gradient signal synthesizer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • G01R33/3854—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/46—NMR spectroscopy
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/461—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using an operational amplifier as final control device
    • 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
    • H03F2203/45—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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CA2982449A 2015-04-13 2016-04-13 Magnetic coil power methods and apparatus Abandoned CA2982449A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562146609P 2015-04-13 2015-04-13
US62/146,609 2015-04-13
PCT/US2016/027215 WO2016168249A1 (en) 2015-04-13 2016-04-13 Magnetic coil power methods and apparatus

Publications (1)

Publication Number Publication Date
CA2982449A1 true CA2982449A1 (en) 2016-10-20

Family

ID=57111600

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2982449A Abandoned CA2982449A1 (en) 2015-04-13 2016-04-13 Magnetic coil power methods and apparatus

Country Status (13)

Country Link
US (5) US10281540B2 (enExample)
EP (2) EP4462222A3 (enExample)
JP (1) JP6800164B2 (enExample)
KR (1) KR20180019518A (enExample)
CN (1) CN107533118B (enExample)
AU (1) AU2016250077B2 (enExample)
BR (1) BR112017021999A2 (enExample)
CA (1) CA2982449A1 (enExample)
HK (1) HK1251301A1 (enExample)
IL (1) IL254956A0 (enExample)
MX (1) MX378464B (enExample)
TW (1) TWI710782B (enExample)
WO (1) WO2016168249A1 (enExample)

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Also Published As

Publication number Publication date
US10989776B2 (en) 2021-04-27
TWI710782B (zh) 2020-11-21
BR112017021999A2 (pt) 2018-07-10
MX2017013190A (es) 2018-05-22
JP2018511420A (ja) 2018-04-26
US11041922B2 (en) 2021-06-22
WO2016168249A8 (en) 2016-11-17
US20190227136A1 (en) 2019-07-25
US20160299203A1 (en) 2016-10-13
CN107533118B (zh) 2021-05-14
US20190227137A1 (en) 2019-07-25
IL254956A0 (en) 2017-12-31
US10281540B2 (en) 2019-05-07
TW201640135A (zh) 2016-11-16
AU2016250077A1 (en) 2017-11-02
WO2016168249A1 (en) 2016-10-20
JP6800164B2 (ja) 2020-12-16
EP3283895A4 (en) 2019-05-01
AU2016250077B2 (en) 2021-04-15
US20190018094A1 (en) 2019-01-17
EP3283895A1 (en) 2018-02-21
KR20180019518A (ko) 2018-02-26
EP4462222A2 (en) 2024-11-13
US10295628B2 (en) 2019-05-21
HK1251301A1 (zh) 2019-01-25
MX378464B (es) 2025-03-04
US10222435B2 (en) 2019-03-05
CN107533118A (zh) 2018-01-02
HK1248821A1 (zh) 2018-10-19
US20190018095A1 (en) 2019-01-17
EP4462222A3 (en) 2025-01-15

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