JP4362176B2 - スイッチング増幅装置 - Google Patents

スイッチング増幅装置 Download PDF

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Publication number
JP4362176B2
JP4362176B2 JP24683699A JP24683699A JP4362176B2 JP 4362176 B2 JP4362176 B2 JP 4362176B2 JP 24683699 A JP24683699 A JP 24683699A JP 24683699 A JP24683699 A JP 24683699A JP 4362176 B2 JP4362176 B2 JP 4362176B2
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JP
Japan
Prior art keywords
voltage
switching
input
buck regulator
bus
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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 - Fee Related
Application number
JP24683699A
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English (en)
Japanese (ja)
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JP2000092856A5 (https=
JP2000092856A (ja
Inventor
ロバート・ルイス・ステイガーワルド
ウィリアム・フレデリック・ワース
ユービサ・ドラゴユーブ・スティヴァノヴィック
ジョン・ノートン・パーク
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General Electric Co
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General Electric Co
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Publication date
Application filed by General Electric Co filed Critical General Electric Co
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Publication of JP2000092856A5 publication Critical patent/JP2000092856A5/ja
Application granted granted Critical
Publication of JP4362176B2 publication Critical patent/JP4362176B2/ja
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Expired - Fee Related 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)
JP24683699A 1998-09-04 1999-09-01 スイッチング増幅装置 Expired - Fee Related JP4362176B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/148559 1998-09-04
US09/148,559 US6031746A (en) 1998-09-04 1998-09-04 Switching amplifier for generating continuous arbitrary waveforms for magnetic resonance imaging coils

Publications (3)

Publication Number Publication Date
JP2000092856A JP2000092856A (ja) 2000-03-31
JP2000092856A5 JP2000092856A5 (https=) 2008-11-27
JP4362176B2 true JP4362176B2 (ja) 2009-11-11

Family

ID=22526290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24683699A Expired - Fee Related JP4362176B2 (ja) 1998-09-04 1999-09-01 スイッチング増幅装置

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013051751A (ja) * 2011-08-30 2013-03-14 Ge Medical Systems Global Technology Co Llc インバータ装置およびｍｒ装置

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WO2004061469A1 (en) * 2003-01-07 2004-07-22 Philips Intellectual Property & Standards Gmbh High-frequency system for an mr apparatus with multiple transmit channels
US6930483B2 (en) * 2003-08-01 2005-08-16 General Electric Company Method/system for switched frequency ripple reduction in MRI gradient coils
US7116166B2 (en) * 2004-06-15 2006-10-03 General Electric Company High fidelity, high power switched amplifier
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US7596008B2 (en) * 2005-02-25 2009-09-29 Mitsubishi Electric Corporation Power conversion apparatus
US7336059B2 (en) * 2005-11-15 2008-02-26 General Electric Company System and method for charging and discharging a superconducting coil
EP2108218A1 (en) * 2007-02-01 2009-10-14 JM Electronics Ltd. Llc Sampling frequency reduction for switching amplifiers
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
US20120020126A1 (en) * 2009-04-03 2012-01-26 Komatsu Ltd. Control device of transformer coupling type booster
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
WO2011158170A1 (en) * 2010-06-17 2011-12-22 Koninklijke Philips Electronics N.V. Gradient coil power supply and a magnetic resonance imaging system
US10024937B2 (en) 2011-09-27 2018-07-17 Koninklijke Philips 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
CN104170224A (zh) * 2012-03-12 2014-11-26 皇家飞利浦有限公司 用于为mri梯度线圈供电的电源转换器以及操作电源转换器的方法
RU2626026C2 (ru) * 2012-07-25 2017-07-21 Конинклейке Филипс Н.В. Градиентный усилитель mri, работающий при различных скоростях нарастания
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
TWI710782B (zh) 2015-04-13 2020-11-21 美商超精細研究股份有限公司 用於對操作磁共振成像系統之至少一梯度線圈提供電力之裝置及方法以及磁共振成像系統
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
US11707623B2 (en) 2017-02-28 2023-07-25 Nyxoah S.A. Surgical implant system
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
NL2022222B1 (en) * 2018-12-17 2020-07-03 Prodrive Tech Bv Voltage waveform generator for plasma processing apparatuses
EP3878002B1 (en) * 2018-11-09 2023-06-07 Prodrive Technologies Innovation Services B.V. 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
WO2024089751A1 (ja) * 2022-10-25 2024-05-02 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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US5576940A (en) * 1995-01-09 1996-11-19 General Electric Company Front-end power converter for distributed power systems
US5663647A (en) * 1995-12-29 1997-09-02 General Electric Company Switching gradient amplifier with adjustable DC bus voltage
US5781421A (en) * 1996-12-16 1998-07-14 General Electric Company High-frequency, high-efficiency converter with recirculating energy control for high-density power conversion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013051751A (ja) * 2011-08-30 2013-03-14 Ge Medical Systems Global Technology Co Llc インバータ装置およびｍｒ装置

Also Published As

Publication number Publication date
KR20000022900A (ko) 2000-04-25
EP0987818B1 (en) 2003-12-10
DE69913454T2 (de) 2004-10-07
EP0987818A3 (en) 2002-03-20
US6031746A (en) 2000-02-29
EP0987818A2 (en) 2000-03-22
DE69913454D1 (de) 2004-01-22
JP2000092856A (ja) 2000-03-31
CN1247319A (zh) 2000-03-15

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