JP2006000645A5 - - Google Patents
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- Publication number
- JP2006000645A5 JP2006000645A5 JP2005173542A JP2005173542A JP2006000645A5 JP 2006000645 A5 JP2006000645 A5 JP 2006000645A5 JP 2005173542 A JP2005173542 A JP 2005173542A JP 2005173542 A JP2005173542 A JP 2005173542A JP 2006000645 A5 JP2006000645 A5 JP 2006000645A5
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- voltage
- gradient
- bridge amplifier
- bridge
- 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.)
- Granted
Links
- 230000001939 inductive effect Effects 0.000 claims 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/867,598 | 2004-06-15 | ||
| US10/867,598 US7116166B2 (en) | 2004-06-15 | 2004-06-15 | High fidelity, high power switched amplifier |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006000645A JP2006000645A (ja) | 2006-01-05 |
| JP2006000645A5 true JP2006000645A5 (enExample) | 2008-07-31 |
| JP4732021B2 JP4732021B2 (ja) | 2011-07-27 |
Family
ID=35459875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005173542A Expired - Fee Related JP4732021B2 (ja) | 2004-06-15 | 2005-06-14 | 高忠実度で高出力の切り替え式増幅器 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7116166B2 (enExample) |
| JP (1) | JP4732021B2 (enExample) |
| DE (1) | DE102005027628A1 (enExample) |
| NL (1) | NL1029240C2 (enExample) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7253625B2 (en) * | 2003-02-03 | 2007-08-07 | Koninklijke Philips Electronics N.V. | Precision gradient amplifier with multiple output voltage levels |
| GB2441572B (en) * | 2006-09-05 | 2009-01-28 | Stream Technology Ltd M | Switching amplifier |
| ES2511032T3 (es) * | 2008-03-05 | 2014-10-22 | Ampegon Ag | Modulador de alta tensión con transformador |
| WO2010004492A1 (en) | 2008-07-11 | 2010-01-14 | Koninklijke Philips Electronics N.V. | Digital amplifier with feedforward and feedback control |
| 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 |
| US8760164B2 (en) * | 2010-01-29 | 2014-06-24 | General Electric Company | Magnetic resonant imaging gradient driver architecture |
| WO2011158170A1 (en) * | 2010-06-17 | 2011-12-22 | Koninklijke Philips Electronics N.V. | Gradient coil power supply and a magnetic resonance imaging system |
| EP2656092B1 (en) | 2010-12-20 | 2015-07-15 | Koninklijke Philips N.V. | State space feedback controller in the digital domain for an mri gradient coil power supply |
| US8502539B2 (en) * | 2011-03-31 | 2013-08-06 | General Electric Company | Gradient amplifier system |
| US9013187B2 (en) * | 2011-06-16 | 2015-04-21 | General Electric Company | Balanced mixer for MRI system with a hub, intermediate frequency, oscillator, and pre-amp circuitry coupled together |
| JP6122013B2 (ja) | 2011-09-27 | 2017-04-26 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | デッドタイム及び順電圧の補償を有する傾斜増幅器、方法、コンピュータ読み取り可能媒体、及びコンピュータプログラム |
| 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 |
| CN103222867B (zh) * | 2012-01-31 | 2016-12-07 | Ge医疗系统环球技术有限公司 | 体部/头部线圈切换方法、功率放大器组件和mri系统 |
| US10024935B2 (en) * | 2012-07-25 | 2018-07-17 | Koninklijke Philips N.V. | MRI gradient amplifier operable at different slew rates |
| US9389288B2 (en) | 2012-09-14 | 2016-07-12 | General Electric Company | System and method for maintaining soft switching condition in a gradient coil driver circuit |
| KR101491658B1 (ko) * | 2013-04-25 | 2015-02-09 | 주식회사 피에스텍 | 스위칭 증폭기 장치 및 그 제어 방법 |
| NL2011648C2 (en) | 2013-10-18 | 2015-04-23 | Prodrive B V | Switched power converter. |
| EP2910965A1 (en) * | 2014-02-19 | 2015-08-26 | Albert-Ludwigs-Universität Freiburg | Multi-channel switching system for MRI matrix gradient coils |
| DE102015214925B4 (de) * | 2014-09-11 | 2019-06-06 | Siemens Healthcare Gmbh | Verfahren zum Betrieb einer Magnetresonanzeinrichtung und Magnetresonanzeinrichtung |
| CN105591537B (zh) * | 2014-10-28 | 2019-02-22 | 通用电气公司 | 梯度放大器、开关放大器及其操作方法 |
| US10033263B2 (en) * | 2015-06-26 | 2018-07-24 | Board Of Trustees Of Michigan State University | System and method for optimizing fundamental frequency modulation for a cascaded multilevel inverter |
| US9807863B1 (en) * | 2016-06-09 | 2017-10-31 | Advanced Energy Industries, Inc. | Switching amplifier |
| 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 |
| EP3550319A1 (en) * | 2018-04-05 | 2019-10-09 | Koninklijke Philips N.V. | Emulation mode for mri |
| CN109001659A (zh) * | 2018-06-06 | 2018-12-14 | 上海东软医疗科技有限公司 | 一种梯度放大器及核磁共振成像设备 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3581212A (en) | 1969-07-31 | 1971-05-25 | Gen Electric | Fast response stepped-wave switching power converter circuit |
| US5270657A (en) | 1992-03-23 | 1993-12-14 | General Electric Company | Split gradient amplifier for an MRI system |
| JPH07313489A (ja) * | 1994-05-30 | 1995-12-05 | Toshiba Corp | 傾斜磁場電源装置 |
| US5663647A (en) | 1995-12-29 | 1997-09-02 | General Electric Company | Switching gradient amplifier with adjustable DC bus voltage |
| DE19709767C1 (de) * | 1997-03-10 | 1998-04-23 | Siemens Ag | Verfahren zum Ansteuern mehrerer Schaltendstufen, Ansteuereinrichtung und Leistungsverstärker |
| JPH10314140A (ja) * | 1997-05-15 | 1998-12-02 | Hitachi Medical Corp | 磁気共鳴イメージング装置 |
| DE19812069B4 (de) | 1998-03-19 | 2005-07-07 | Siemens Ag | Leistungsverstärker und Verfahren zum Erzeugen von Steuersignalen für einen Leistungsverstärker |
| DE19824767C2 (de) * | 1998-06-03 | 2000-05-18 | Siemens Ag | Verfahren zum Erzeugen von Steuersignalen für einen Leistungsverstärker und Leistungsverstärker |
| US6031746A (en) * | 1998-09-04 | 2000-02-29 | General Electric Company | Switching amplifier for generating continuous arbitrary waveforms for magnetic resonance imaging coils |
| US6172558B1 (en) * | 1999-09-02 | 2001-01-09 | Siemens Aktiengesellschaft | Switching amplifier and method for operating same |
| US6166602A (en) | 1999-09-27 | 2000-12-26 | General Electric Company | High-efficiency switching power amplifier |
| JP3499235B1 (ja) * | 2002-08-28 | 2004-02-23 | 株式会社フライングモール | スイッチング回路及びディジタル電力増幅器 |
-
2004
- 2004-06-15 US US10/867,598 patent/US7116166B2/en not_active Expired - Lifetime
-
2005
- 2005-06-13 NL NL1029240A patent/NL1029240C2/nl not_active IP Right Cessation
- 2005-06-14 JP JP2005173542A patent/JP4732021B2/ja not_active Expired - Fee Related
- 2005-06-14 DE DE102005027628A patent/DE102005027628A1/de not_active Withdrawn
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