IL98221A - Transformer-coupled gradient speed-up circuit - Google Patents

Transformer-coupled gradient speed-up circuit

Info

Publication number
IL98221A
IL98221A IL98221A IL9822191A IL98221A IL 98221 A IL98221 A IL 98221A IL 98221 A IL98221 A IL 98221A IL 9822191 A IL9822191 A IL 9822191A IL 98221 A IL98221 A IL 98221A
Authority
IL
Israel
Prior art keywords
transformer
circuit
gradient speed
coupled
coupled gradient
Prior art date
Application number
IL98221A
Other languages
English (en)
Other versions
IL98221A0 (en
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL98221A0 publication Critical patent/IL98221A0/xx
Publication of IL98221A publication Critical patent/IL98221A/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
IL98221A 1990-06-04 1991-05-22 Transformer-coupled gradient speed-up circuit IL98221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/533,233 US5063349A (en) 1990-06-04 1990-06-04 Transformer-coupled gradient speed-up circuit

Publications (2)

Publication Number Publication Date
IL98221A0 IL98221A0 (en) 1992-06-21
IL98221A true IL98221A (en) 1993-05-13

Family

ID=24125074

Family Applications (1)

Application Number Title Priority Date Filing Date
IL98221A IL98221A (en) 1990-06-04 1991-05-22 Transformer-coupled gradient speed-up circuit

Country Status (4)

Country Link
US (1) US5063349A (xx)
EP (1) EP0460895A3 (xx)
JP (1) JPH0618565B2 (xx)
IL (1) IL98221A (xx)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05509009A (ja) * 1990-06-13 1993-12-16 アドバンスト　エヌエムアール　システムズ，インク． 磁気共鳴イメージングシステムの磁界発生コイルの駆動回路
DE4032707A1 (de) * 1990-10-15 1992-04-16 Siemens Ag Entstoerfilter fuer eine gradientenspule in einem kernspinresonanz-bildgeraet
DE4127529C2 (de) * 1991-08-20 1995-06-08 Siemens Ag Verfahren zum Betrieb eines Kernspintomographiegeräts mit einem Resonanzkreis zur Erzeugung von Gradientenfeldern
JPH05269102A (ja) * 1991-11-28 1993-10-19 Toshiba Corp 傾斜磁場アンプ装置
FI98411C (fi) * 1993-08-20 1997-06-10 Picker Nordstar Oy Parannettu virtalähde
US5451878A (en) * 1994-07-15 1995-09-19 General Electric Company Non-resonant gradient field accelerator
DE69526421T2 (de) * 1994-07-29 2002-10-31 Koninklijke Philips Electronics N.V., Eindhoven Gerät für die magnetische resonanz mit einem verbesserten gradientensystem
US5721490A (en) * 1995-02-09 1998-02-24 Hitachi Medical Corporation Power source apparatus including a plurality of output current amplifiers connected in parallel and MRI apparatus using the same
US5663648A (en) * 1995-03-17 1997-09-02 British Technology Group Usa, Inc. Gradient coils having increased performance and decreased power consumption for use in MR systems
DE19734045C2 (de) * 1997-08-06 1999-06-17 Siemens Ag Leistungsverstärker und Kernspintomograph
DE19842033C2 (de) * 1998-09-14 2000-08-10 Siemens Ag Gradientenverstärker eines Kernspintomographen und Verfahren zum Regeln eines Gradientenverstärkers
US6552448B1 (en) 1999-09-08 2003-04-22 Harman International Industries, Incorporated Energy management system for series connected amplifiers
US6504426B2 (en) * 2001-03-28 2003-01-07 Guy Picha Methods and systems for power amplifying of signals
US6920312B1 (en) 2001-05-31 2005-07-19 Lam Research Corporation RF generating system with fast loop control
FR2884985B1 (fr) * 2005-04-20 2007-09-21 Ciprian Sarl Amplificateur de signaux electriques pour applications ultrasonores
JP6151330B2 (ja) * 2010-01-29 2017-06-21 東芝メディカルシステムズ株式会社 傾斜磁場電源及び磁気共鳴映像装置
JP5836600B2 (ja) * 2010-01-29 2015-12-24 東芝メディカルシステムズ株式会社 傾斜磁場電源及び磁気共鳴映像装置
WO2013156889A1 (en) * 2012-04-16 2013-10-24 Koninklijke Philips N.V. Mri gradient power system with add on energy buffer
US20150309130A1 (en) * 2014-03-27 2015-10-29 Constantin Job Magnetic Resonance (MR) Field Cycling Instrument and Methods Associated Therewith

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437053A (en) * 1982-05-10 1984-03-13 Diasonics (Nmr) Inc. Gradient power supply
GB8530930D0 (en) * 1985-12-16 1986-01-29 Mansfield P Inductive circuit arrangements
EP0250718A1 (de) * 1986-06-30 1988-01-07 Siemens Aktiengesellschaft Stromversorgung für einen induktiven Verbraucher, insbesondere eine Gradientenspule, mit Steuer- und Regeleinrichtung
US4961054A (en) * 1989-07-06 1990-10-02 General Electric Company Gradient current speed-up circuit for high-speed NMR imaging system
US5017871A (en) * 1989-09-14 1991-05-21 General Electric Company Gradient current speed-up circuit for high-speed NMR imaging system

Also Published As

Publication number Publication date
EP0460895A2 (en) 1991-12-11
JPH0618565B2 (ja) 1994-03-16
IL98221A0 (en) 1992-06-21
JPH04231027A (ja) 1992-08-19
EP0460895A3 (en) 1992-07-01
US5063349A (en) 1991-11-05

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Legal Events

Date Code Title Description
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees