JPH0391817A - Power circuit for traveling wave tube amplifier - Google Patents
Power circuit for traveling wave tube amplifierInfo
- Publication number
- JPH0391817A JPH0391817A JP23080289A JP23080289A JPH0391817A JP H0391817 A JPH0391817 A JP H0391817A JP 23080289 A JP23080289 A JP 23080289A JP 23080289 A JP23080289 A JP 23080289A JP H0391817 A JPH0391817 A JP H0391817A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power supply
- high voltage
- supply circuit
- overvoltage
- 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
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
- Control Of Electrical Variables (AREA)
- Microwave Amplifiers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は進行波管増幅器用電源回路〈以下ＴＷＴ電源と
いう）に関し、特にコマンド信号の遠隔操作により保護
回路を動作させるＴＷＴ電源に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power supply circuit for a traveling wave tube amplifier (hereinafter referred to as a TWT power supply), and particularly to a TWT power supply that operates a protection circuit by remote control of a command signal.
従来、この種のＴＷＴ電源は、第２図の構戒図に示すよ
うに低圧電波回路３及びカンード用高圧トランス５′、
コレクタ用高圧トランス６′、アノード用高圧トランス
７′を有する高圧電波回路４′によりＴＷＴ２のカソー
ド、コレクタ、アノード等の各電極に指定の高圧電圧を
供給していた．
〔発明が解決しようとする課題〕
上述した従来のＴＷＴ電源はＴＷＴ管内の各電極間の耐
圧機能の低下などにより、放電を生ずるおそれがある。Conventionally, this type of TWT power supply has a low-voltage radio wave circuit 3, a high-voltage transformer for cand 5',
A specified high voltage was supplied to each electrode such as the cathode, collector, and anode of TWT 2 by a high voltage radio circuit 4' having a high voltage transformer 6' for the collector and a high voltage transformer 7' for the anode. [Problems to be Solved by the Invention] The above-described conventional TWT power supply may cause discharge due to a decrease in the withstand voltage between the electrodes in the TWT tube.
この耐圧低下の原因として不純物が電極に付着して生ず
る場合があるが、従来のＴＷＴ電源は各高圧電源の供給
電圧は固定の電圧なので、試行的に高圧電圧を変化させ
不純物を飛敬させるような動作を行うことができない欠
点があった．したがってこの放電により信号の一時的劣
化が生ずる欠点がある。This drop in breakdown voltage may be caused by impurities adhering to the electrodes, but in conventional TWT power supplies, the supply voltage of each high-voltage power supply is a fixed voltage, so it is necessary to change the high-voltage voltage on a trial basis to make the impurities fly away. The drawback was that it was not possible to perform certain actions. Therefore, there is a drawback that this discharge causes temporary signal deterioration.
本発明の目的は信号伝送中におけるＴＷＴの放電を防止
できるＴＷＴ用電源回路を提供することにある．
〔課題を解決するための手段〕
本発明のＴＷＴ電源はコマンド信号によって遠隔操作で
きる進行波管増幅器用電源回路において、低圧電圧を発
生し、かつ、外部からの制御信号により前記低圧電圧を
変化させる端子を有する低圧電源回路と、前記低圧電圧
を入力して高圧に変換する複数の高圧トランスを有し前
記高圧トランスの出力電圧を昇圧させるために各１次側
のタップを切換えるスイッチを有し前記高圧トランスの
各高圧側に過電圧を検出して出力される制御信号を前記
低圧電源回路の制御端子に供給する保護回路を有する高
圧電源回路とを備え、遠隔操作のコマンド信号により前
記スイッチを制御している．
〔実施例〕
次に本発明について図面を参照して説明する。An object of the present invention is to provide a power supply circuit for a TWT that can prevent discharge of the TWT during signal transmission. [Means for Solving the Problems] The TWT power supply of the present invention generates a low voltage in a traveling wave tube amplifier power supply circuit that can be remotely controlled by a command signal, and changes the low voltage by an external control signal. a low-voltage power supply circuit having a terminal; a plurality of high-voltage transformers for inputting the low-voltage voltage and converting it to high voltage; and a switch for switching a tap on each primary side in order to boost the output voltage of the high-voltage transformer; a high-voltage power supply circuit having a protection circuit that detects overvoltage on each high-voltage side of the high-voltage transformer and supplies a control signal outputted to the control terminal of the low-voltage power supply circuit; and the switch is controlled by a remote control command signal. ing. [Example] Next, the present invention will be described with reference to the drawings.
第１図は本発明の一実施例の構成図である。第１図の実
施例はＴＷＴ２のアノード、コレクタ、カソードの各電
極に高圧電圧を供給する高圧電源回路４と、高圧電源回
路４に低圧電圧を入力する低圧電源回路３から構成され
る。ここで高圧電源４内には、カノーノ電圧、コレクタ
電圧、アノード電圧の高圧を発生させる高圧トランス５
，６，７があるが、これらの高圧トランス５，６．７の
ｌ次側にスイッチ１Ａ〜ＩＣが設けられ、コマンド端子
９から入力されるコマンド制御信号により、このスイッ
チを駆動し、高圧トランス５，６．７のスイッチＩＡ〜
ＩＣで１タップ下げ、動作電圧より高い過電圧を各電極
に加えることができる。この過電圧により電源回路に過
負荷状態になり、又ＴＷＴ２に対するストレスも大きく
なる。このような一定のエネルギーを短時間ＴＷＴに供
給すると、低圧電源回路３に過電圧を元に戻すために保
護回路８から制御端子１０を経由して制御信号が送られ
る．
このように本電源回路により一時的に過電圧が加えられ
たＴＷＴは、放電し、各電極間についた不純物がとばさ
れ、耐圧を上げることができる。FIG. 1 is a block diagram of an embodiment of the present invention. The embodiment shown in FIG. 1 is comprised of a high voltage power supply circuit 4 that supplies high voltage to each of the anode, collector and cathode electrodes of the TWT 2, and a low voltage power supply circuit 3 that inputs a low voltage to the high voltage power supply circuit 4. Here, in the high voltage power supply 4, there is a high voltage transformer 5 that generates high voltages such as a voltage, a collector voltage, and an anode voltage.
, 6, and 7, switches 1A to IC are provided on the primary side of these high voltage transformers 5, 6, and 7, and the switches are driven by a command control signal input from the command terminal 9, and the high voltage transformers are activated. 5, 6.7 switch IA~
It is possible to lower the IC by one tap and apply an overvoltage higher than the operating voltage to each electrode. This overvoltage causes the power supply circuit to be overloaded, and the stress on the TWT 2 also increases. When such constant energy is supplied to the TWT for a short time, a control signal is sent from the protection circuit 8 via the control terminal 10 in order to restore the overvoltage to the low voltage power supply circuit 3. The TWT to which an overvoltage is temporarily applied by the present power supply circuit in this way is discharged, impurities attached between each electrode are blown away, and the withstand voltage can be increased.
以上説明したように本発明は信号電送機間を除いて定期
的にコマンド信号によりＴＷＴに対して過電圧を加え、
人為的にＴＷＴを放電させることにより、ＴＷＴは一定
の期間の間放電しにくくなる効果がある。したがって放
電による伝送信号の品質劣化を防止することができる。As explained above, the present invention periodically applies overvoltage to the TWT by a command signal except between signal transmitters,
Artificially discharging the TWT has the effect of making it difficult for the TWT to discharge for a certain period of time. Therefore, it is possible to prevent quality deterioration of the transmission signal due to discharge.
第１図は本発明の一実施例の楕戒図、第２図は従来の進
行波間増幅器用電源回路の構成図である．
１Ａ〜１Ｃ・・・スイッチ、２・・・進行波管増幅器（
ＴＷＴ）、３・・・低圧電源回路、４，４′・・・高圧
電源回路、５，６．７・・・高圧トランス、８・−・保
護回路、
９・・・コマンド端子、
１
Ｏ・・・制御端子。FIG. 1 is an elliptical diagram of an embodiment of the present invention, and FIG. 2 is a configuration diagram of a conventional power supply circuit for a traveling wave amplifier. 1A to 1C...Switch, 2...Travelling wave tube amplifier (
TWT), 3...Low voltage power supply circuit, 4, 4'...High voltage power supply circuit, 5,6.7...High voltage transformer, 8...Protection circuit, 9...Command terminal, 1 O. ...Control terminal.
Claims (1)
電源回路において、低圧電圧を発生し、かつ、外部から
の制御信号により前記低圧電圧を変化させる端子を有す
る低圧電源回路と、前記低圧電圧を入力して高圧に変換
する複数の高圧トランスを有し前記高圧トランスの出力
電圧を昇圧させるために各１次側のタップを切換えるス
イッチを有し前記高圧トランスの各高圧側に過電圧を検
出して出力される制御信号を前記低圧電源回路の制御端
子に供給する保護回路を有する高圧電源回路とを備え、
遠隔操作のコマンド信号により前記スイッチを制御する
ことを特徴とする進行波管増幅器用電源回路。A power supply circuit for a traveling wave tube amplifier that can be remotely controlled by a command signal includes a low-voltage power supply circuit that generates a low-voltage voltage and has a terminal that changes the low-voltage voltage according to an external control signal; It has a plurality of high voltage transformers that convert to high voltage, and has a switch that changes the tap on each primary side in order to boost the output voltage of the high voltage transformer, and detects and outputs overvoltage to each high voltage side of the high voltage transformer. a high voltage power supply circuit having a protection circuit that supplies a control signal to a control terminal of the low voltage power supply circuit,
A power supply circuit for a traveling wave tube amplifier, characterized in that the switch is controlled by a remote control command signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23080289A JP2794817B2 (en) | 1989-09-05 | 1989-09-05 | Power supply circuit for traveling wave tube amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23080289A JP2794817B2 (en) | 1989-09-05 | 1989-09-05 | Power supply circuit for traveling wave tube amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0391817A true JPH0391817A (en) | 1991-04-17 |
| JP2794817B2 JP2794817B2 (en) | 1998-09-10 |
Family
ID=16913504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23080289A Expired - Lifetime JP2794817B2 (en) | 1989-09-05 | 1989-09-05 | Power supply circuit for traveling wave tube amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2794817B2 (en) |
-
1989
- 1989-09-05 JP JP23080289A patent/JP2794817B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2794817B2 (en) | 1998-09-10 |
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