JPH01135907U - - Google Patents

Info

Publication number
JPH01135907U
JPH01135907U JP2198888U JP2198888U JPH01135907U JP H01135907 U JPH01135907 U JP H01135907U JP 2198888 U JP2198888 U JP 2198888U JP 2198888 U JP2198888 U JP 2198888U JP H01135907 U JPH01135907 U JP H01135907U
Authority
JP
Japan
Prior art keywords
magnetic field
gradient magnetic
high voltage
current
field coil
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
Application number
JP2198888U
Other languages
Japanese (ja)
Other versions
JPH069607Y2 (en
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 filed Critical
Priority to JP1988021988U priority Critical patent/JPH069607Y2/en
Publication of JPH01135907U publication Critical patent/JPH01135907U/ja
Application granted granted Critical
Publication of JPH069607Y2 publication Critical patent/JPH069607Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Magnetic Resonance Imaging Apparatus (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の回路図、第２図は
従来の電源装置の回路図、第３図はＶｇ計算のた
めの説明図である。 １……ドライバ、２，３，１２，１３，１４，
１５……ＦＥＴ、４……勾配磁場コイル、１０，
１０′……低電圧電源、１１，１１′……高電圧
電源。 FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional power supply device, and FIG. 3 is an explanatory diagram for calculating Vg. 1... Driver, 2, 3, 12, 13, 14,
15...FET, 4...Gradient magnetic field coil, 10,
10'...Low voltage power supply, 11,11'...High voltage power supply.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 核磁気共鳴画像診断装置の勾配磁場コイルに電
流を供給するための勾配磁場用電源装置において
、前記勾配磁場コイルに定常時に定常電流を供給
する低電圧電源と、高スルーレート時の高電圧が
必要な時に電圧を供給する高電圧電源と、前記勾
配磁場コイルに電流を入力信号の制御により供給
する電流供給用半導体素子に前記勾配磁場コイル
が高電圧を必要とする時に前記高電圧電源を接続
するように導通する前記電流供給用半導体素子に
直列に抵抗を介して接続される半導体素子とを具
備することを特徴とする勾配磁場用電源装置。 A gradient magnetic field power supply device for supplying current to a gradient magnetic field coil of a nuclear magnetic resonance imaging diagnostic apparatus requires a low voltage power supply that supplies a steady current to the gradient magnetic field coil during steady state, and a high voltage at a high slew rate. When the gradient magnetic field coil requires a high voltage, the high voltage power source is connected to a high voltage power supply that supplies a voltage when the gradient magnetic field coil requires a high voltage, and a current supply semiconductor element that supplies current to the gradient magnetic field coil under the control of an input signal. 1. A gradient magnetic field power supply device comprising: a semiconductor element connected in series to the current supplying semiconductor element through a resistor.
JP1988021988U 1988-02-22 1988-02-22 Power supply for gradient magnetic field Expired - Lifetime JPH069607Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988021988U JPH069607Y2 (en) 1988-02-22 1988-02-22 Power supply for gradient magnetic field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988021988U JPH069607Y2 (en) 1988-02-22 1988-02-22 Power supply for gradient magnetic field

Publications (2)

Publication Number Publication Date
JPH01135907U true JPH01135907U (en) 1989-09-18
JPH069607Y2 JPH069607Y2 (en) 1994-03-16

Family

ID=31525016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988021988U Expired - Lifetime JPH069607Y2 (en) 1988-02-22 1988-02-22 Power supply for gradient magnetic field

Country Status (1)

Country Link
JP (1) JPH069607Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05106U (en) * 1991-06-20 1993-01-08 横河メデイカルシステム株式会社 Gradient current supply device for MR device
JPH05210899A (en) * 1991-03-12 1993-08-20 Canon Inc Magnetic recording and reproducing device
JPH06269419A (en) * 1993-02-15 1994-09-27 Siemens Ag Electric current supply device for semi-inductive load
CN107533118A (en) * 2015-04-13 2018-01-02 海珀菲纳研究股份有限公司 Magnetic coil method of supplying power to and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135613U (en) * 1987-02-27 1988-09-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135613U (en) * 1987-02-27 1988-09-06

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05210899A (en) * 1991-03-12 1993-08-20 Canon Inc Magnetic recording and reproducing device
JPH05106U (en) * 1991-06-20 1993-01-08 横河メデイカルシステム株式会社 Gradient current supply device for MR device
JPH06269419A (en) * 1993-02-15 1994-09-27 Siemens Ag Electric current supply device for semi-inductive load
CN107533118A (en) * 2015-04-13 2018-01-02 海珀菲纳研究股份有限公司 Magnetic coil method of supplying power to and device

Also Published As

Publication number Publication date
JPH069607Y2 (en) 1994-03-16

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