DE69913454T2 - Schaltverstärker zum Generieren von kontinuierlichen, willkürlichen Funktionen für Spülen bei der Magnetresonanz-Bildgebung - Google Patents

Schaltverstärker zum Generieren von kontinuierlichen, willkürlichen Funktionen für Spülen bei der Magnetresonanz-Bildgebung Download PDF

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Publication number
DE69913454T2
DE69913454T2 DE69913454T DE69913454T DE69913454T2 DE 69913454 T2 DE69913454 T2 DE 69913454T2 DE 69913454 T DE69913454 T DE 69913454T DE 69913454 T DE69913454 T DE 69913454T DE 69913454 T2 DE69913454 T2 DE 69913454T2
Authority
DE
Germany
Prior art keywords
rinsing
magnetic resonance
resonance imaging
switching amplifier
generating continuous
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.)
Expired - Lifetime
Application number
DE69913454T
Other languages
German (de)
English (en)
Other versions
DE69913454D1 (de
Inventor
Robert Louis Steigerwald
William Frederick Wirth
Ljubisa Dragoljub Stevanovic
John Norton Park
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of DE69913454D1 publication Critical patent/DE69913454D1/de
Publication of DE69913454T2 publication Critical patent/DE69913454T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H03F3/217—Class D power amplifiers; Switching 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
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Inverter Devices (AREA)
DE69913454T 1998-09-04 1999-08-26 Schaltverstärker zum Generieren von kontinuierlichen, willkürlichen Funktionen für Spülen bei der Magnetresonanz-Bildgebung Expired - Lifetime DE69913454T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/148,559 US6031746A (en) 1998-09-04 1998-09-04 Switching amplifier for generating continuous arbitrary waveforms for magnetic resonance imaging coils

Publications (2)

Publication Number Publication Date
DE69913454D1 DE69913454D1 (de) 2004-01-22
DE69913454T2 true DE69913454T2 (de) 2004-10-07

Family

ID=22526290

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69913454T Expired - Lifetime DE69913454T2 (de) 1998-09-04 1999-08-26 Schaltverstärker zum Generieren von kontinuierlichen, willkürlichen Funktionen für Spülen bei der Magnetresonanz-Bildgebung

Country Status (6)

Country Link
US (1) US6031746A (enExample)
EP (1) EP0987818B1 (enExample)
JP (1) JP4362176B2 (enExample)
KR (1) KR20000022900A (enExample)
CN (1) CN1247319A (enExample)
DE (1) DE69913454T2 (enExample)

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JP4527768B2 (ja) * 2005-02-25 2010-08-18 三菱電機株式会社 電力変換装置
US7336059B2 (en) * 2005-11-15 2008-02-26 General Electric Company System and method for charging and discharging a superconducting coil
KR101122847B1 (ko) * 2007-02-01 2012-03-22 제이엠 일렉트로닉스 엘티디. 엘엘씨 스위칭 증폭기의 샘플링 주파수 감소 시스템 및 방법
US7508096B1 (en) * 2007-09-20 2009-03-24 General Electric Company Switching circuit apparatus having a series conduction path for servicing a load and switching method
EP2234237A1 (en) * 2009-03-26 2010-09-29 ABB Research Ltd. Method for controlling single-phase DC/AC converters and converter arrangement
EP2234263A1 (en) * 2009-03-27 2010-09-29 Koninklijke Philips Electronics N.V. A power supply, method, and computer program product for supplying electrical power to a load
KR101237279B1 (ko) * 2009-04-03 2013-02-27 가부시키가이샤 고마쓰 세이사쿠쇼 트랜스 결합형 승압기의 제어 장치
CN102263542B (zh) 2010-05-31 2015-11-25 Ge医疗系统环球技术有限公司 移相器及其功率放大器和核磁共振成像设备
JP5780512B2 (ja) * 2010-06-07 2015-09-16 株式会社東芝 磁気共鳴イメージング装置
CN102947720B (zh) * 2010-06-17 2015-07-08 皇家飞利浦电子股份有限公司 梯度线圈电源和磁共振成像系统
JP5731328B2 (ja) * 2011-08-30 2015-06-10 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー インバータ装置およびｍｒ装置
WO2013046099A1 (en) 2011-09-27 2013-04-04 Koninklijke Philips Electronics N.V. Gradient amplifier with compensation for dead time and forward voltage
CN102508183B (zh) * 2011-11-11 2013-09-11 辽宁开普医疗系统有限公司 一种负载自适应控制的数字可变频pwm梯度放大器
CN103176150B (zh) * 2011-12-21 2015-08-26 通用电气公司 梯度放大器系统及其控制方法
US20150130464A1 (en) * 2012-03-12 2015-05-14 Koninklijke Philips N.V. Power converter for powering an mri gradient coil and method of operating a power converter
WO2014016774A1 (en) * 2012-07-25 2014-01-30 Koninklijke Philips N.V. Mri gradient amplifier operable at different slew rates
US9344042B2 (en) * 2013-02-27 2016-05-17 Hengchun Mao High efficiency power amplifiers with advanced power solutions
US10270439B2 (en) * 2013-02-27 2019-04-23 Hengchun Mao High efficiency resonant power converters and resonant gate drivers
CN104142483B (zh) * 2013-05-07 2017-07-07 辽宁开普医疗系统有限公司 一种高压大电流小纹波梯度放大器
CN103414362B (zh) * 2013-08-23 2015-12-09 东南大学 一种基于通用电压控制策略的可编程电压波形发生设备
CN104518664B (zh) * 2013-09-29 2017-10-03 西门子(深圳)磁共振有限公司 一种磁共振成像系统及其线圈控制装置
EP2910965A1 (en) * 2014-02-19 2015-08-26 Albert-Ludwigs-Universität Freiburg Multi-channel switching system for MRI matrix gradient coils
CN105471393B (zh) 2014-09-12 2018-12-18 通用电气公司 以零电压开关及热平衡控制算法运作的开关放大器
CN105703631B (zh) * 2014-11-25 2018-12-25 上海联影医疗科技有限公司 梯度放大器功率单元、梯度放大器及磁共振成像系统
CN105703726B (zh) * 2014-11-28 2021-04-20 Ge医疗系统环球技术有限公司 功率放大器、电源装置和磁共振成像设备
DE102014118040B4 (de) * 2014-12-05 2017-08-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Regelschaltung für eine Basisstation zum Übertragen einer Energie auf einen Empfänger mittels eines elektrischen Schwingkreises, Auswerteeinrichtung, Verfahren und Computerprogramm
WO2016168249A1 (en) 2015-04-13 2016-10-20 Hyperfine Research, Inc. Magnetic coil power methods and apparatus
US9807863B1 (en) * 2016-06-09 2017-10-31 Advanced Energy Industries, Inc. Switching amplifier
USD876628S1 (en) 2016-07-20 2020-02-25 Nyxoah S.A. Medical implant
USD988519S1 (en) 2016-09-12 2023-06-06 Nyxoah S.A. Patch
JP7248581B2 (ja) 2017-02-28 2023-03-29 ニクソア エス．アー． 外科手術用インプラントシステム
CN108173417B (zh) * 2018-01-11 2020-06-16 台达电子企业管理（上海）有限公司 梯度电源驱动级电路、梯度电源系统及其控制方法
KR102815626B1 (ko) * 2018-11-09 2025-06-02 프로드라이브 테크놀로지즈 이노베이션 서비시즈 비.브이. 플라즈마 처리 장치를 위한 전압 파형 발생기
NL2022222B1 (en) * 2018-12-17 2020-07-03 Prodrive Tech Bv Voltage waveform generator for plasma processing apparatuses
NL2022999B1 (en) 2019-04-24 2020-11-02 Prodrive Tech Bv Voltage waveform generator for plasma processing apparatuses
US12047042B2 (en) * 2021-11-30 2024-07-23 Silicon Laboratories Inc. Switching power amplifier with output harmonic suppression
JP7756806B2 (ja) * 2022-10-25 2025-10-20 三菱電機株式会社 高電圧パルス電源装置、ガスレーザ発振器及びレーザ加工機
WO2024118563A1 (en) * 2022-11-30 2024-06-06 Corning Incorporated Driver circuit, optical system using the driver circuit, and method to control optical device

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Also Published As

Publication number Publication date
EP0987818A2 (en) 2000-03-22
US6031746A (en) 2000-02-29
KR20000022900A (ko) 2000-04-25
EP0987818B1 (en) 2003-12-10
CN1247319A (zh) 2000-03-15
DE69913454D1 (de) 2004-01-22
JP2000092856A (ja) 2000-03-31
EP0987818A3 (en) 2002-03-20
JP4362176B2 (ja) 2009-11-11

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8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: ROEGER UND KOLLEGEN, 73728 ESSLINGEN