JP2004014165A5 - - Google Patents

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Publication number
JP2004014165A5
JP2004014165A5 JP2002162549A JP2002162549A JP2004014165A5 JP 2004014165 A5 JP2004014165 A5 JP 2004014165A5 JP 2002162549 A JP2002162549 A JP 2002162549A JP 2002162549 A JP2002162549 A JP 2002162549A JP 2004014165 A5 JP2004014165 A5 JP 2004014165A5
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JP
Japan
Prior art keywords
voltage
inverter circuit
tube
high voltage
detector
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Application number
JP2002162549A
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Japanese (ja)
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JP2004014165A (en
JP4343491B2 (en
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Publication date
Application filed filed Critical
Priority to JP2002162549A priority Critical patent/JP4343491B2/en
Priority claimed from JP2002162549A external-priority patent/JP4343491B2/en
Priority to CNB038130483A priority patent/CN100340139C/en
Priority to PCT/JP2003/007081 priority patent/WO2003103347A1/en
Publication of JP2004014165A publication Critical patent/JP2004014165A/en
Publication of JP2004014165A5 publication Critical patent/JP2004014165A5/ja
Application granted granted Critical
Publication of JP4343491B2 publication Critical patent/JP4343491B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Claims (2)

直流電源と、半導体スイッチングデバイスを有し上記直流電源に接続されて直流電圧を交流電圧に変換するインバータ回路と、このインバータ回路の出力側と一次巻線が接続された高電圧変圧器と、この高電圧変圧器の二次巻線側と入力側が接続された高電圧整流器と、この高電圧整流器の出力側と接続されるＸ線管と、このＸ線管に接続されその管電圧を検出する管電圧検出器と、この管電圧検出器による検出値を目標値と比較して上記インバータ回路の各半導体スイッチングデバイスに位相シフトＰＷＭ信号を与える管電圧フィードバック制御回路とを備えたインバータ式Ｘ線高電圧装置において、上記インバータ回路の出力側に上記インバータ回路の出力電圧が正負非対称であることを検出する正負非対称検出器と、少なくともこの正負非対称検出器による検出があったとき上記インバータ回路の出力電圧が正負対称となるように上記位相シフトＰＷＭ信号に補正を与える補正手段と、を備えたことを特徴とするインバータ式Ｘ線高電圧装置。  A DC power source, an inverter circuit having a semiconductor switching device and connected to the DC power source to convert a DC voltage into an AC voltage, a high voltage transformer in which an output side of the inverter circuit and a primary winding are connected, and A high voltage rectifier in which the secondary winding side and the input side of the high voltage transformer are connected, an X-ray tube connected to the output side of the high voltage rectifier, and a tube voltage connected to the X-ray tube to detect the tube voltage An inverter type X-ray height comprising a tube voltage detector, and a tube voltage feedback control circuit for comparing a detection value by the tube voltage detector with a target value and providing a phase shift PWM signal to each semiconductor switching device of the inverter circuit. In the voltage device, on the output side of the inverter circuit, a positive / negative asymmetric detector for detecting that the output voltage of the inverter circuit is positive / negative asymmetric, and at least the positive / negative asymmetric detector. An inverter type X-ray high voltage apparatus comprising: correction means for correcting the phase shift PWM signal so that the output voltage of the inverter circuit is symmetric with respect to the polarity when the detection by the asymmetric detector is performed. . 前記補正手段は、前記インバータ回路を形成する半導体スイッチングデバイスの時比率を前記インバータ回路の出力電流における平均の偏りに応じて変化させることを特徴とする請求項１に記載のインバータ式Ｘ線高電圧装置。  2. The inverter type X-ray high voltage according to claim 1, wherein the correction unit changes a duty ratio of a semiconductor switching device forming the inverter circuit in accordance with an average bias in an output current of the inverter circuit. apparatus.
JP2002162549A 2002-06-04 2002-06-04 Inverter X-ray high voltage device Expired - Lifetime JP4343491B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2002162549A JP4343491B2 (en) 2002-06-04 2002-06-04 Inverter X-ray high voltage device
CNB038130483A CN100340139C (en) 2002-06-04 2003-06-04 X-ray apparatus
PCT/JP2003/007081 WO2003103347A1 (en) 2002-06-04 2003-06-04 X-ray apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002162549A JP4343491B2 (en) 2002-06-04 2002-06-04 Inverter X-ray high voltage device

Publications (3)

Publication Number Publication Date
JP2004014165A JP2004014165A (en) 2004-01-15
JP2004014165A5 true JP2004014165A5 (en) 2005-10-06
JP4343491B2 JP4343491B2 (en) 2009-10-14

Family

ID=29706606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002162549A Expired - Lifetime JP4343491B2 (en) 2002-06-04 2002-06-04 Inverter X-ray high voltage device

Country Status (3)

Country Link
JP (1) JP4343491B2 (en)
CN (1) CN100340139C (en)
WO (1) WO2003103347A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101188900B (en) * 2007-10-17 2011-07-20 廖云峰 Medical diagnosis X ray high-frequency and high-voltage generator based on dual-bed and dual-tube
CN102204077B (en) * 2008-11-05 2014-05-28 株式会社日立医疗器械 Phase shift inverter, x-ray high-voltage device using same, x-ray ct device, and x-ray imaging device
JP5310000B2 (en) * 2009-01-06 2013-10-09 富士電機株式会社 Power converter
JP5282576B2 (en) * 2009-01-06 2013-09-04 富士電機株式会社 Power converter
CN102347187B (en) * 2010-07-30 2016-01-20 株式会社理学 Industrial x-ray generator
EP2653015B1 (en) 2010-12-15 2014-04-16 Koninklijke Philips N.V. Power supply unit for an X-ray tube
JP5824860B2 (en) * 2011-05-10 2015-12-02 株式会社島津製作所 X-ray control device
CN102791072B (en) * 2011-05-20 2016-03-09 飞利浦(中国)投资有限公司 High power high voltage generator
JP5665704B2 (en) * 2011-09-20 2015-02-04 株式会社日本自動車部品総合研究所 Power converter
JP5355655B2 (en) * 2011-10-20 2013-11-27 三菱電機株式会社 DCDC converter and control method of DCDC converter
CN105634320A (en) * 2014-11-03 2016-06-01 江苏绿扬电子仪器集团有限公司 Inverter post-stage logic control device
CN104377946B (en) * 2014-11-18 2017-09-01 汕头市超声仪器研究所有限公司 Inverse changing driving circuit for X-ray emitter
CN106783483B (en) * 2016-11-30 2019-03-05 上海联影医疗科技有限公司 High pressure generator, X-ray generator and its control method
CN108777545B (en) * 2018-04-28 2021-02-02 西安中车永电电气有限公司 Guide rail vehicle phase-shifted full-bridge charger transformer magnetic bias suppression control method
CN108551714B (en) * 2018-05-03 2019-07-26 珠海市睿影科技有限公司 High-frequency signal control circuit and X-ray machine for X-ray emitter
WO2020054034A1 (en) * 2018-09-13 2020-03-19 三菱電機株式会社 Switching power supply device and power supply device for nuclear magnetic resonance imaging device using same
WO2020087224A1 (en) * 2018-10-29 2020-05-07 深圳配天智能技术研究院有限公司 Driving circuit and switch power supply
CN109602430B (en) * 2018-12-07 2022-10-04 无锡市第二人民医院 Orthopedics ray imaging machine
CN110880857A (en) * 2019-10-29 2020-03-13 南宁市跃龙科技有限公司 High-power frequency conversion inversion system of medical X-ray high-voltage generator
CN113438785A (en) * 2021-06-18 2021-09-24 浙江国研智能电气有限公司 Power supply for bulb tube filament of high-voltage X-ray machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978500A (en) * 1982-10-27 1984-05-07 Hitachi Ltd X-ray device
JP2826566B2 (en) * 1989-08-16 1998-11-18 株式会社日立メディコ Inverter type X-ray equipment
JPH03179696A (en) * 1989-12-08 1991-08-05 Hitachi Medical Corp Resonance type inverter type x-ray device
JPH10199696A (en) * 1997-01-13 1998-07-31 Shimadzu Corp High voltage device for x-ray
US5822393A (en) * 1997-04-01 1998-10-13 Siemens Aktiengesellschaft Method for adaptively modulating the power level of an x-ray tube of a computer tomography (CT) system
JP4233640B2 (en) * 1998-08-06 2009-03-04 株式会社日立メディコ Inverter X-ray high voltage device

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