JPH04121999A - High voltage power supply unit x-ray equipment - Google Patents
High voltage power supply unit x-ray equipmentInfo
- Publication number
- JPH04121999A JPH04121999A JP24354990A JP24354990A JPH04121999A JP H04121999 A JPH04121999 A JP H04121999A JP 24354990 A JP24354990 A JP 24354990A JP 24354990 A JP24354990 A JP 24354990A JP H04121999 A JPH04121999 A JP H04121999A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- rectifier
- ray
- power supply
- ray equipment
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- X-Ray Techniques (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、医療機器としてＸ線画像診断などに用いら
れるＸ線装置に高圧直流電圧を供給するための電源装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power supply device for supplying high-voltage DC voltage to an X-ray apparatus used as a medical device for X-ray image diagnosis and the like.
［従来の技術］
第２図は従来のＸ線装置用高圧電源装置を示す回路図で
あり、図において、１は商用電源、２は電源開閉器をも
つインバータ、３はこのインバータ２の動作を制御する
印加時間制御回路、４はインバータ２からの出力を昇圧
する昇圧トランス、５は昇圧トランス４からの交流出力
を直流に変換する整流器、６は後述するＸ線装置と高圧
電源装置とを接続する高圧ケーブル、７はＸ線管７ａを
有して構成されるＸ線装置、８は前述したインバータ２
．昇圧トランス４および整流器５がら構成される高圧電
源装置である。[Prior Art] Fig. 2 is a circuit diagram showing a conventional high-voltage power supply device for an X-ray apparatus. 4 is a step-up transformer that boosts the output from the inverter 2; 5 is a rectifier that converts the AC output from the step-up transformer 4 into DC; 6 is a connection between the X-ray device and the high-voltage power supply device, which will be described later. 7 is an X-ray device having an X-ray tube 7a, and 8 is the inverter 2 described above.
．． This is a high voltage power supply device consisting of a step-up transformer 4 and a rectifier 5.
次に動作について説明する。印加時間制御回路３により
インバータ２は動作し、その出力は、昇圧トランス４に
よって昇圧され、整流器５により直流として高圧ケーブ
ル６を経由してＸ線装置７のＸ線管７ａへ高圧直流電圧
として供給される。Next, the operation will be explained. The inverter 2 is operated by the application time control circuit 3, and its output is boosted by the step-up transformer 4 and supplied as a high-voltage DC voltage by the rectifier 5 to the X-ray tube 7a of the X-ray device 7 via the high-voltage cable 6. be done.
一般に、Ｘ線管７ａは、その使用目的により回転部に組
み込まれており、前述のごとく、固定側に設けられた電
源装置８がら高圧ケーブル６を通して電力供給が行なわ
れる。これは、Ｘ線管電圧が５０〜ｌ ５０ｋＶと高く
昇圧トランス４等が大形となるためであり、大形となる
部分を固定側にそなえて、回転部と区分している。Generally, the X-ray tube 7a is built into a rotating part depending on its intended use, and as described above, power is supplied through the high-voltage cable 6 from the power supply device 8 provided on the stationary side. This is because the X-ray tube voltage is as high as 50 to 150 kV, and the step-up transformer 4 and the like are large in size, and the large portion is provided on the stationary side and separated from the rotating portion.
また、Ｘ線管７ａに高圧を印加する時間は、その用途に
より異なるが、１ ｍ５ｅｃ −１０ｓｅｃ程度とかな
り広範囲で、ＸＭ装置の性能の良悪は、いかに一定の電
圧を、目的とする時間の間中、供給できるかである。Furthermore, the time for applying high voltage to the X-ray tube 7a varies depending on the application, but it has a fairly wide range of about 1 m5ec - 10 sec. The question is whether it can be supplied throughout the period.
［発明が解決しようとする課題］
従来のＸ線装置用高圧電源装置は以上のように構成され
ているので、インバータ２の電源開閉器により、シャー
プに電源を開閉しても高圧ケーブル６自体の静電容量の
ため、Ｘ線ｖ７ａに印加される電圧波形がシャープにな
らない。つまり、電圧印加時には、高圧ケーブル６への
充電のために立上りがなまり、また、電圧オフ時には蓄
えられていたケーブル容量からのエネルギ放出により、
負荷インピーダンスとケーブルキャパシタンスと（その
他に直流回路のストレイ容量もある）にて決まる時定数
でその電圧が立ち下がってしまう。[Problems to be Solved by the Invention] Since the conventional high-voltage power supply device for an X-ray apparatus is configured as described above, even if the power supply switch of the inverter 2 sharply opens and closes the power supply, the high-voltage cable 6 itself is not damaged. Due to the capacitance, the voltage waveform applied to the X-ray v7a does not become sharp. In other words, when voltage is applied, the rise is blunted due to charging to the high-voltage cable 6, and when voltage is turned off, energy is released from the stored cable capacitance.
The voltage will fall with a time constant determined by the load impedance, cable capacitance (and stray capacitance of the DC circuit).
この発明は上記のような課題を解消するためになされた
もので、高圧ケーブルの静電容量による印加電圧波形の
くずれを防止して、Ｘ線装置にシャープな波形の高圧直
流電圧を供給できるようにしたＸ線装置用高圧電源装置
を得ることを目的とする。This invention was made to solve the above-mentioned problems, and it is possible to prevent the applied voltage waveform from being distorted due to the capacitance of the high-voltage cable, and to supply high-voltage DC voltage with a sharp waveform to the X-ray apparatus. The object of the present invention is to obtain a high-voltage power supply device for an X-ray device.
［課題を解決するための手段］
この発明に係るＸ線装置用高圧電源装置は、インバータ
、昇圧トランスを固定側にそなえ、整流器をＸ線装置側
にそなえ、昇圧トランスと整流器との間を高圧ケーブル
にて接続したものである。[Means for Solving the Problems] A high-voltage power supply device for an X-ray apparatus according to the present invention includes an inverter and a step-up transformer on the fixed side, a rectifier on the X-ray apparatus side, and a high-voltage power supply between the step-up transformer and the rectifier. It is connected with a cable.
［作 用コ
ニの発明におけるＸ線装置用高圧電源装置では、整流器
がＸ線装置側にそなえられ、昇圧トランスからの交流出
力が、高圧ケーブルを介してＸ線装置側に供給された後
に、整流器により直流変換されるので、直流回路の静電
容量は、Ｘ線装置内のＸ線管、整流器等のストレイ容量
を除いてなくなるため、高圧ケーブルの静電容量による
印加電圧波形のくずれが防止され、Ｘ線装置への印加電
圧波形が極めてシャープになる。[Function] In the high-voltage power supply device for an X-ray device according to Koni's invention, a rectifier is provided on the X-ray device side, and after the AC output from the step-up transformer is supplied to the X-ray device side via the high-voltage cable, the rectifier is connected to the rectifier. Since the DC voltage is converted to DC, the capacitance of the DC circuit is eliminated except for the stray capacitance of the X-ray tube, rectifier, etc. in the X-ray equipment, and distortion of the applied voltage waveform due to the capacitance of the high-voltage cable is prevented. , the voltage waveform applied to the X-ray device becomes extremely sharp.
［発明の実施例］ 以下、この発明の一実施例を図について説明する。[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.
第１図に示すように、本実施例においては、商用電源１
からの電力を変換すべく電源開閉器を有して構成された
インバータ２と、このインバータ２の動作を制御する印
加時間制御回路３と、インバータ２からの出力を昇圧す
る昇圧トランス４とが、電源装置８Ａとして固定側に設
けられる。As shown in FIG. 1, in this embodiment, a commercial power source 1
An inverter 2 configured with a power switch to convert power from the inverter 2, an application time control circuit 3 that controls the operation of the inverter 2, and a step-up transformer 4 that steps up the output from the inverter 2. It is provided on the fixed side as a power supply device 8A.
そして、昇圧トランス４からの交流８力を直流に変換す
べ〈従来固定側に設けられていた整流器５が、本実施例
では、Ｘ線装置７Ａ側（同一回転部）のＸ線管７ａ近傍
に設けられ、昇圧トランス４と整流器５との間が高圧ケ
ーブル６にて接続されている。Then, the AC 8 power from the step-up transformer 4 is converted into DC (the rectifier 5, which was conventionally provided on the fixed side, is installed near the X-ray tube 7a on the X-ray device 7A side (same rotating part) in this embodiment. The step-up transformer 4 and the rectifier 5 are connected by a high-voltage cable 6.
次に、本実施例の装置の動作について説明する。Next, the operation of the apparatus of this embodiment will be explained.
電源装置８ＡからＸ線装置７Ａへ高圧直流電圧を供給す
る基本的な動作は従来と全く同様であるので、その説明
は省略する。従来と構成的に異なる点は、前述の通り、
整流器５をＸ線装置７Ａ側に設けＸ線管７ａと一体化し
た点、および、高圧ケーブル６により昇圧トランス４の
２次交流呂力を整流器５に供給するようにした点である
。The basic operation of supplying high-voltage DC voltage from the power supply device 8A to the X-ray device 7A is completely the same as the conventional one, so a description thereof will be omitted. As mentioned above, the structural differences from the conventional one are as follows.
The rectifier 5 is provided on the X-ray device 7A side and integrated with the X-ray tube 7a, and the secondary AC power of the step-up transformer 4 is supplied to the rectifier 5 through the high-voltage cable 6.
従って、直流回路の静電容量は、Ｘ線管７ａ。Therefore, the capacitance of the DC circuit is the same as that of the X-ray tube 7a.
整流器５等のストレイ容量を除いてほとんど無くなるた
め、高圧ケーブル６の静電容量による印加電圧波形のく
ずれが防止され、インバータ２における電源開閉器の動
作によって、Ｘ線装置７Ａへ極めてシャープな波形の高
圧直流電圧が供給されることになる。Since the stray capacitance of the rectifier 5, etc. is almost eliminated, distortion of the applied voltage waveform due to the capacitance of the high-voltage cable 6 is prevented, and the operation of the power switch in the inverter 2 transmits an extremely sharp waveform to the X-ray device 7A. High voltage DC voltage will be supplied.
ただし、Ｘ線管７ａに印加する電圧波形は、リップルが
少ない方が望ましく、この静電容量の減少分だけリップ
ルが大きくなる可能性があるが、インバータ２の動作周
波数をあげることによって、Ｘ線管７ａ、整流器５のス
トレイ容量によるリップル低減を行なうことができる。However, it is desirable for the voltage waveform applied to the X-ray tube 7a to have fewer ripples, and there is a possibility that the ripple will increase by the amount of this decrease in capacitance. Ripple can be reduced by the stray capacity of the pipe 7a and rectifier 5.
なお、上記実施例では、昇圧トランス４がらの２次交流
出力を整流器５により単相余波整流しているが、本発明
はこれに限定されるものではない。In the above embodiment, the secondary AC output from the step-up transformer 4 is subjected to single-phase aftereffect rectification by the rectifier 5, but the present invention is not limited to this.
［発明の効果コ
以上のように、この発明によれば、整流器をＸ線装置に
設け、高圧ケーブルにより昇圧トランスの２次交流出力
を整流器に供給するように構成したので、高圧ケーブル
の静電容量による印加電圧波形のくずれが確実に防止さ
れ、Ｘ線装置にシャープな波形の高圧直流電圧を供給で
きる効果がある。[Effects of the Invention] As described above, according to the present invention, a rectifier is provided in the X-ray apparatus, and the secondary AC output of the step-up transformer is supplied to the rectifier by the high voltage cable, so that the electrostatic charge of the high voltage cable is reduced. Deformation of the applied voltage waveform due to capacitance is reliably prevented, and a high voltage DC voltage with a sharp waveform can be supplied to the X-ray apparatus.
第１図はこの発明の一実施例によるＸ線装置用高圧電源
装置を示す回路図、第２図は従来のＸ線装置用高圧電源
装置を示す回路図である。
図において、２−インバータ、４−昇圧トランス、５−
整流器、６−高圧ケーブル、７Ａ−Ｘ線装置、８Ａ−電
源装置。
なお、図中、同一の符号は同一、又は相当部分を示して
いる。FIG. 1 is a circuit diagram showing a high-voltage power supply for an X-ray apparatus according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional high-voltage power supply for an X-ray apparatus. In the figure, 2-inverter, 4-step-up transformer, 5-
Rectifier, 6-high voltage cable, 7A-X-ray device, 8A-power supply device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
べく、インバータ、昇圧トランス、整流器をそなえてな
るＸ線装置用高圧電源装置において、前記のインバータ
および昇圧トランスを固定側にそなえ、前記整流器を前
記Ｘ線装置側にそなえ、前記の昇圧トランスと整流器と
の間が前記高圧ケーブルにて接続されたことを特徴とす
るＸ線装置用高圧電源装置。In a high-voltage power supply device for an X-ray device that is equipped with an inverter, a step-up transformer, and a rectifier in order to supply high-voltage DC voltage to the X-ray device via a high-voltage cable, the inverter and step-up transformer are provided on a fixed side, and the rectifier A high-voltage power supply device for an X-ray apparatus, characterized in that the step-up transformer and the rectifier are connected by the high-voltage cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24354990A JPH04121999A (en) | 1990-09-12 | 1990-09-12 | High voltage power supply unit x-ray equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24354990A JPH04121999A (en) | 1990-09-12 | 1990-09-12 | High voltage power supply unit x-ray equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04121999A true JPH04121999A (en) | 1992-04-22 |
Family
ID=17105526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24354990A Pending JPH04121999A (en) | 1990-09-12 | 1990-09-12 | High voltage power supply unit x-ray equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04121999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019158869A1 (en) | 2018-02-16 | 2019-08-22 | Manitou Bf | Cherry picker for elevating persons and allowing said persons to work in an elevated position |
-
1990
- 1990-09-12 JP JP24354990A patent/JPH04121999A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019158869A1 (en) | 2018-02-16 | 2019-08-22 | Manitou Bf | Cherry picker for elevating persons and allowing said persons to work in an elevated position |
| US11180354B2 (en) | 2018-02-16 | 2021-11-23 | Manitou Bf | Cherry picker for elevating persons and allowing said persons to work in an elevated position |
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