JPH06245526A - Dc high voltage power device - Google Patents
Dc high voltage power deviceInfo
- Publication number
- JPH06245526A JPH06245526A JP2910193A JP2910193A JPH06245526A JP H06245526 A JPH06245526 A JP H06245526A JP 2910193 A JP2910193 A JP 2910193A JP 2910193 A JP2910193 A JP 2910193A JP H06245526 A JPH06245526 A JP H06245526A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- voltage power
- frequency transformer
- power supply
- high frequency
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、高周波交流電圧又は
パルス電圧を直流高電圧に変換して出力する直流高電圧
電源装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DC high voltage power supply device for converting a high frequency AC voltage or pulse voltage into a DC high voltage and outputting it.
【０００２】[0002]
【従来の技術】従来、直流高電圧電源装置は図７又は図
８に示すように構成されている。即ち、図７の直流高電
圧電源装置は、１つの高周波変圧器Ｔと整流平滑回路Ｓ
Ｎのみで、高周波交流電圧又はパルス電圧を直流高電圧
に変換して出力する回路である。又、図８の直流高電圧
電源装置は、一次巻線は１つであるが、二次巻線は複数
備えた高周波変圧器Ｔと整流平滑回路ＳＮを使用し、高
周波変圧器の一次側に高周波交流電圧又はパルス電圧を
供給し、二次側の出力電圧を整流平滑回路ＳＮに加えて
直流高電圧を得る回路であり、いわゆる積み上げ方式と
言われるものである。2. Description of the Related Art Conventionally, a DC high voltage power supply device is constructed as shown in FIG. That is, the DC high-voltage power supply device of FIG. 7 has one high-frequency transformer T and rectifying / smoothing circuit S.
It is a circuit for converting a high frequency AC voltage or a pulse voltage into a DC high voltage and outputting only by N. The DC high-voltage power supply device of FIG. 8 has one primary winding, but uses a high-frequency transformer T having a plurality of secondary windings and a rectifying / smoothing circuit SN to connect the primary side to the high-frequency transformer. This is a so-called stacking system in which a high frequency AC voltage or a pulse voltage is supplied and a secondary side output voltage is added to the rectifying and smoothing circuit SN to obtain a DC high voltage.
【０００３】[0003]
【発明が解決しようとする課題】このような従来の直流
高電圧電源装置では、いずれも１つの高周波変圧器Ｔを
用いて高電圧を得ているので、巻線の巻数を大きくする
必要がある。この巻数を大きくすることにより、次のよ
うな不具合が生じる。 (1) 高周波変圧器Ｔのコア自体が特殊な構造になり、コ
スト高になる。 (2) 難燃化設計の観点より高周波変圧器Ｔの高電圧部を
樹脂等でモ―ルドした場合、等価的に容量が増大する。 この容量が増大することにより、各種の不具合が生じ
る。即ち、 (a) 効率が減少する。 (b) 高周波変圧器Ｔの特性が変化する。In each of the conventional DC high voltage power supply devices as described above, one high frequency transformer T is used to obtain a high voltage, so that it is necessary to increase the number of windings. . Increasing the number of turns causes the following problems. (1) The core of the high frequency transformer T itself has a special structure, which increases the cost. (2) When the high voltage part of the high frequency transformer T is molded with resin or the like from the viewpoint of flame retardant design, the capacity equivalently increases. This increase in capacity causes various problems. That is, (a) efficiency is reduced. (b) The characteristics of the high frequency transformer T change.
【０００４】この発明は、以上のような不都合を解消
し、高周波変圧器の巻線の巻数を大きくする必要がな
く、従って、特殊構造のコアを使用しなくても良く、等
価的な変圧器容量の変化に伴なう効率の減少，変圧器の
特性変化がない直流高電圧電源装置を提供することを目
的とする。The present invention eliminates the above-mentioned inconveniences, and it is not necessary to increase the number of turns of the winding of the high frequency transformer. Therefore, it is not necessary to use a core having a special structure, and an equivalent transformer is used. It is an object of the present invention to provide a DC high-voltage power supply device in which the efficiency does not decrease as the capacity changes and the transformer characteristics do not change.
【０００５】[0005]
【課題を解決するための手段】この発明は、一次巻線，
二次巻線又は三次巻線を有する高周波変圧器の出力側両
端に、コンデンサ，ダイオ−ドからなる整流回路が複数
個並列に接続され、且つこれら整流回路の出力側に平滑
回路がそれぞれ接続され、これら平滑回路の出力端子が
直列接続されてなる直流高電圧電源装置である。SUMMARY OF THE INVENTION The present invention is directed to a primary winding,
A plurality of rectifier circuits consisting of capacitors and diodes are connected in parallel to both output sides of a high frequency transformer having a secondary winding or a tertiary winding, and smoothing circuits are connected to the output sides of these rectifier circuits. A DC high voltage power supply device in which the output terminals of these smoothing circuits are connected in series.
【０００６】[0006]
【作用】この発明によれば、高周波変圧器の巻線の巻数
を大きくする必要がない。従って、特殊構造のコアを使
用しなくても良く、等価的な変圧器容量の変化に伴なう
効率の減少，変圧器の特性変化がなくなる。According to the present invention, it is not necessary to increase the number of windings of the high frequency transformer. Therefore, it is not necessary to use a core having a special structure, and there is no decrease in efficiency or change in the characteristics of the transformer due to a change in equivalent transformer capacity.
【０００７】[0007]
【実施例】以下、図面を参照して、この発明の３つの実
施例について説明する。 （実施例１）DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Three embodiments of the present invention will be described below with reference to the drawings. (Example 1)
【０００８】この実施例１は、図１に示すように構成さ
れ、図中の符号ＰＳは直流高電圧電源装置、符号Ｔは一
次巻線および二次巻線を有する高周波変圧器である。こ
の高周波変圧器Ｔの出力側両端つまり二次巻線両端
Ｔ11，Ｔ12には、コンデンサＣ121 ，Ｃ111 ，Ｃ222 ，
Ｃ122 ，……Ｃn22 ，Ｃn12 を介して複数の整流回路Ｓ
1，Ｓ2 ，……Ｓn が並列に接続され、これら整流回路
Ｓ1 ，Ｓ2 ，……Ｓn の出力側にはそれぞれ平滑回路Ｎ
1 ，Ｎ2 ，……Ｎn が接続され、これら平滑回路Ｎ1 ，
Ｎ2 ，……Ｎn の出力端子が直列接続されている。図中
の符号Ｔ21，Ｔ22は、この直流高電圧電源装置ＰＳの出
力端子である。The first embodiment is constructed as shown in FIG. 1, in which the symbol PS is a DC high voltage power supply device, and the symbol T is a high frequency transformer having a primary winding and a secondary winding. At both ends of the output side of the high frequency transformer T, that is, at both ends T 11 and T 12 of the secondary winding, capacitors C 121 , C 111, C 222 ,
C122, ...... C n22, via a C n12 plurality of rectifier circuits S
1, S 2, ...... S n are connected in parallel, the rectifier circuits S 1, S 2, ...... S respectively on the output side of the n smoothing circuit N
1 , N 2 , ... N n are connected, and these smoothing circuits N 1 ,
N 2 , ... N n output terminals are connected in series. Reference numerals T 21 and T 22 in the figure are output terminals of the DC high voltage power supply device PS.
【０００９】上記の場合、整流回路Ｓ1 はコンデンサＣ
11，Ｃ12およびダイオ−ドＤ11，Ｄ12からなり、整流回
路Ｓ2 はコンデンサＣ21，Ｃ22およびダイオ−ドＤ21，
Ｄ22からなり、整流回路Ｓn はコンデンサＣn1，Ｃn2お
よびダイオ−ドＤn1，Ｄn2からなっている。In the above case, the rectifier circuit S 1 has the capacitor C
11 and C 12 and diodes D 11 and D 12 , and the rectifier circuit S 2 includes capacitors C 21 , C 22 and diode D 21 ,
It consists D 22, rectifier circuit S n capacitors C n1, C n2 and diode - consists de D n1, D n2.
【００１０】又、上記の平滑回路Ｎ1 ，Ｎ2 ，……Ｎn
としては、例えば図２に示すようなコンデンサ入力形、
あるいは図３に示すようなチョ−ク入力形のいずれであ
っても良い。Further, the above smoothing circuits N 1 , N 2 , ... N n
For example, a capacitor input type as shown in FIG.
Alternatively, any of the choke input types as shown in FIG. 3 may be used.
【００１１】尚、コンデンサＣ121 ，Ｃ111 ，Ｃ222 ，
Ｃ122 ，……Ｃn22 ，Ｃn12 は、直流を阻止し、高周波
変圧器Ｔの高周波出力電流を通過させるためのものであ
る。更に、図中の符号Ｃ0 は、高周波変圧器Ｔの高電圧
部を樹脂等でモ―ルド等を行なった場合に生じる高周波
変圧器Ｔに影響を与える浮遊容量である。The capacitors C 121 , C 111, C 222 ,
C122, ... Cn22 , Cn12 are for blocking direct current and for allowing the high frequency output current of the high frequency transformer T to pass through. Further, symbol C 0 in the figure is a stray capacitance that affects the high frequency transformer T generated when the high voltage portion of the high frequency transformer T is molded with resin or the like.
【００１２】動作時には、高周波変圧器Ｔの一次側に、
周波数変換器（図示せず）より商用周波数より高い周波
数２０〜５００ＫＨｚ例えば１００ＫＨｚの交流電圧又
はパルス電圧が印加され、上記の整流回路Ｓ1 ，Ｓ2 ，
……Ｓn および平滑回路Ｎ1，Ｎ2 ，……Ｎn を経て、
出力端子Ｔ21，Ｔ22には、変換された直流高電圧が得ら
れる。 （実施例２）In operation, on the primary side of the high frequency transformer T,
A frequency converter (not shown) applies an AC voltage or pulse voltage of a frequency of 20 to 500 KHz higher than the commercial frequency, for example 100 KHz, and the rectifier circuits S 1 , S 2 ,
...... S n and smoothing circuits N 1 , N 2 , ... N n ,
The output terminal T 21, T22, DC high voltage is obtained which transformed. (Example 2)
【００１３】この実施例２は、図４に示すように構成さ
れている。上記の実施例１で示したＰＳを１つの電源回
路ユニットとし、高周波変圧器Ｔの２次側においてｎ個
の電源ユニットＡ1 ，Ａ2 ，……Ａn が各々２個のコン
デンサＣ11，Ｃ12，Ｃ21，Ｃ22……，Ｃn1，Ｃn2を介し
て互いに並列に接続されている。そして、電源ユニット
Ａ1 ，Ａ2 ，……Ａn の出力端子Ｔ311 ，Ｔ321 ，……
Ｔ31n が互いに直列に接続され、回路全体の出力の端子
はＴ21，Ｔ22として直流高電圧を得ている。The second embodiment is constructed as shown in FIG. In the secondary side of the high frequency transformer T, n power supply units A 1 , A 2 , ... A n each have two capacitors C 11 , C 12, C 21, C 22 ......, via the C n1, C n2 are connected in parallel with each other. The power supply unit A 1, A 2, ...... A output terminal T 311 of n, T 321, ......
T 31n are connected in series with each other, and the terminals of the output of the whole circuit obtain high DC voltage as T 21 and T 22 .
【００１４】尚、コンデンサＣ11，Ｃ12，Ｃ21，Ｃ22…
…，Ｃn1，Ｃn2は、実施例１と同様に直流を阻止し、且
つ高周波変圧器の高周波出力電流を通過させるものであ
る。更に、この実施例２は、実施例１で示したコンデン
サＣ11，Ｃ12，Ｃ21，Ｃ22……，Ｃn1，Ｃn2が、その耐
電圧を越える場合（デレ−ディング手法による耐電圧を
越える場合も含む）に有効である。 （実施例３）The capacitors C 11 , C 12 , C 21 , C 22 ...
, C n1 and C n2 block the direct current and pass the high frequency output current of the high frequency transformer as in the first embodiment. Furthermore, the second embodiment is such that when the capacitors C 11 , C 12 , C 21 , C 22, ..., C n1 , C n2 shown in the first embodiment exceed their withstand voltage (withstand voltage by the delading method). Is also effective). (Example 3)
【００１５】この実施例３は、図５に示すように構成さ
れている。即ち、ｎ個の個別の高周波変圧器Ｔ1 ，
Ｔ2 ，……Ｔn の２次側にｎ個の電源ユニットＡ1 ，Ａ
2 ，……Ａn が接続され、その出力端子Ｔ21，Ｔ321 ，
Ｔ312 ，Ｔ322 ，……Ｔ31n ，Ｔ22が直列に接続され、
回路全体の出力端子Ｔ21，Ｔ22より直流高電圧を得るも
のである。The third embodiment is constructed as shown in FIG. That is, n individual high frequency transformers T 1 ,
T 2 , ... N power supply units A 1 , A on the secondary side of T n
2 , ... A n are connected, and their output terminals T 21 , T 321 ,
T 312 , T 322 , ... T 31n , T 22 are connected in series,
A high DC voltage is obtained from the output terminals T 21 and T 22 of the entire circuit.
【００１６】この実施例３は、出力電圧が不足し、更に
高い直流高電圧を得たい場合に有効である。尚、各々の
高周波変圧器Ｔ1 ，Ｔ2 ，……Ｔn は、同期化を施す等
を行なえば、効果が上がる。図６は上記の実施例１，
２，３の直流高電圧電源装置の応用例を示したもので、
出力側をスイッチングし、パルス高電圧を得るものであ
る。The third embodiment is effective when the output voltage is insufficient and a higher DC high voltage is desired. The effects of the high-frequency transformers T 1 , T 2 , ... T n are enhanced if they are synchronized with each other. FIG. 6 shows the first embodiment described above.
It shows an example of application of a few DC high voltage power supplies.
The output side is switched to obtain a pulse high voltage.
【００１７】上記のように、この発明では、複数の平滑
回路，電源ユニットを直列接続して直流高電圧を得てい
るので、各々の高周波変圧器の巻線の巻数を大きくする
必要がない。従って、特殊構造のコアを使用しなくても
良く、等価的な変圧器容量の変化に伴う効率の減少，変
圧器の特性変化がなくなる。As described above, in the present invention, since a plurality of smoothing circuits and power supply units are connected in series to obtain a high DC voltage, it is not necessary to increase the number of windings of each high frequency transformer. Therefore, it is not necessary to use a core having a special structure, and there is no decrease in efficiency or change in the characteristics of the transformer due to a change in equivalent transformer capacity.
【００１８】又、流入電流のピ−ク値および出力電圧の
リップルも抑えられ、電源自体の破損、負荷側への破損
がなくなる。更に、装置全体の遮断速度が遅くなること
が懸念されるが、例えば特願平４−８１５号明細書に記
載されているシャット・ダウン回路等を用いれば、従来
と同様、あるいはそれ以上の遮断速度が得られる。Further, the peak value of the inflow current and the ripple of the output voltage are suppressed, and the damage of the power source itself and the damage to the load side are eliminated. Further, there is a concern that the shutoff speed of the entire device will be slowed down. However, if a shut down circuit or the like described in Japanese Patent Application No. 4-815 is used, the shutoff speed will be the same as or higher than the conventional one. Speed is obtained.
【００１９】このシャット・ダウン回路は、一次巻線お
よび二次巻線を有する高周波変圧器と、この高周波変圧
器の一次巻線に接続され商用電源の周波数よりも高い周
波数の出力電圧を発生するインバ−タ回路とを備え、こ
のインバ−タ回路は他励式のスイッチング素子を有して
高周波電圧を発生する直流高電圧電源装置において、イ
ンバ−タ回路は、そのスイッチング素子に直流電圧を供
給したまま高周波発振を停止するスイッチ回路が設けら
れ、このスイッチ回路の制御で高周波変圧器の一次巻線
に供給する高周波電圧を遮断制御するように構成されて
いる。尚、上記各実施例では、高周波変圧器は三次巻線
を有していなかったが、三次巻線を有する高周波変圧器
にも、この発明は適用出来る。This shut down circuit is connected to the high frequency transformer having a primary winding and a secondary winding, and the primary winding of this high frequency transformer to generate an output voltage having a frequency higher than the frequency of the commercial power supply. An inverter circuit, the inverter circuit having a separately-excited switching element to generate a high frequency voltage in a DC high voltage power supply device, the inverter circuit supplying a DC voltage to the switching element. A switch circuit for stopping high-frequency oscillation is provided as it is, and the control of this switch circuit is configured to cut off the high-frequency voltage supplied to the primary winding of the high-frequency transformer. In each of the above embodiments, the high frequency transformer does not have a tertiary winding, but the present invention can be applied to a high frequency transformer having a tertiary winding.
【００２０】又、この発明の直流高電圧電源装置は、例
えば進行波管装置の電源装置として利用されるが、それ
に限らず、数ｋＶ以上の高電圧を出力とする各種用途の
高電圧電源装置に適用できる。The DC high-voltage power supply device of the present invention is used as, for example, a power supply device for a traveling wave tube device, but is not limited to this, and is a high-voltage power supply device for various applications that outputs a high voltage of several kV or more. Applicable to
【００２１】[0021]
【発明の効果】以上説明したようにこの発明によれば、
高周波変圧器の出力側両端にコンデンサ，ダイオ−ドか
らなる整流回路が複数個並列に接続され、且つこれら整
流回路の出力側に平滑回路がそれぞれ接続され、これら
平滑回路の出力端子が直列接続されているので、高周波
変圧器の巻線の巻数を大きくする必要がない。従って、
特殊構造のコアを使用しなくても良く、等価的な変圧器
容量の変化に伴なう効率の減少，変圧器の特性変化がな
くなる。As described above, according to the present invention,
A plurality of rectifier circuits consisting of capacitors and diodes are connected in parallel at both ends of the output side of the high-frequency transformer, and smoothing circuits are connected to the output sides of these rectifying circuits, and the output terminals of these smoothing circuits are connected in series. Therefore, it is not necessary to increase the number of turns of the high frequency transformer. Therefore,
It is not necessary to use a core with a special structure, and there is no decrease in efficiency or change in the characteristics of the transformer due to changes in the equivalent transformer capacity.
【図１】この発明の第１の実施例に係る直流高電圧電源
装置を示す回路構成図。FIG. 1 is a circuit configuration diagram showing a DC high-voltage power supply device according to a first embodiment of the present invention.
【図２】図１の第１の実施例における平滑回路の例を示
す回路構成図。FIG. 2 is a circuit configuration diagram showing an example of a smoothing circuit in the first embodiment of FIG.
【図３】図１の第１の実施例における平滑回路の例を示
す回路構成図。FIG. 3 is a circuit configuration diagram showing an example of a smoothing circuit in the first embodiment of FIG.
【図４】この発明の第２の実施例に係る直流高電圧電源
装置を示す回路構成図。FIG. 4 is a circuit configuration diagram showing a DC high voltage power supply device according to a second embodiment of the present invention.
【図５】この発明の第３の実施例に係る直流高電圧電源
装置を示す回路構成図。FIG. 5 is a circuit configuration diagram showing a DC high-voltage power supply device according to a third embodiment of the present invention.
【図６】この発明の応用例に係る直流高電圧電源装置を
示す回路構成図。FIG. 6 is a circuit configuration diagram showing a DC high voltage power supply device according to an application example of the invention.
【図７】従来の直流高電圧電源装置の一例を示す回路構
成図。FIG. 7 is a circuit configuration diagram showing an example of a conventional DC high-voltage power supply device.
【図８】従来の直流高電圧電源装置の他の例を示す回路
構成図。FIG. 8 is a circuit configuration diagram showing another example of a conventional DC high voltage power supply device.
Ｔ…高周波変圧器、Ｓ1 ，Ｓ2 ，……Ｓn …整流回路、
Ｎ1 ，Ｎ2 ，……Ｎn…平滑回路。T ... High frequency transformer, S 1 , S 2 , ... S n ... Rectifier circuit,
N 1 , N 2 , ... N n ... Smoothing circuit.
Claims (1)
る高周波変圧器および整流回路，平滑回路を備え、高周
波交流電圧又はパルス電圧が直流高電圧に変換される直
流高電圧電源装置において、 上記高周波変圧器の出力側両端にコンデンサ，ダイオ−
ドからなる上記整流回路が複数個並列に接続され、且つ
該各整流回路の出力側に上記平滑回路がそれぞれ接続さ
れ、該平滑回路の出力端子が直列接続されてなることを
特徴とする直流高電圧電源装置。1. A DC high voltage power supply device comprising a high frequency transformer having a primary winding, a secondary winding or a tertiary winding, a rectifying circuit and a smoothing circuit, and converting a high frequency AC voltage or pulse voltage into a DC high voltage. At the output side of the high frequency transformer, a capacitor and a diode
A plurality of rectifier circuits each of which is connected in parallel, the smoothing circuits are respectively connected to the output sides of the rectifier circuits, and the output terminals of the smoothing circuits are connected in series. Voltage power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2910193A JPH06245526A (en) | 1993-02-18 | 1993-02-18 | Dc high voltage power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2910193A JPH06245526A (en) | 1993-02-18 | 1993-02-18 | Dc high voltage power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06245526A true JPH06245526A (en) | 1994-09-02 |
Family
ID=12266961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2910193A Pending JPH06245526A (en) | 1993-02-18 | 1993-02-18 | Dc high voltage power device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06245526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010218856A (en) * | 2009-03-17 | 2010-09-30 | Hitachi Medical Corp | Multistage direct-current high-voltage power supply device and x-ray apparatus |
-
1993
- 1993-02-18 JP JP2910193A patent/JPH06245526A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010218856A (en) * | 2009-03-17 | 2010-09-30 | Hitachi Medical Corp | Multistage direct-current high-voltage power supply device and x-ray apparatus |
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