JPH0638495Y2 - Switching control method - Google Patents
Switching control methodInfo
- Publication number
- JPH0638495Y2 JPH0638495Y2 JP18280886U JP18280886U JPH0638495Y2 JP H0638495 Y2 JPH0638495 Y2 JP H0638495Y2 JP 18280886 U JP18280886 U JP 18280886U JP 18280886 U JP18280886 U JP 18280886U JP H0638495 Y2 JPH0638495 Y2 JP H0638495Y2
- Authority
- JP
- Japan
- Prior art keywords
- output
- power amplifier
- signal
- switching
- power
- 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.)
- Expired - Lifetime
Links
Landscapes
- Amplifiers (AREA)
- Transmitters (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は切替制御方式に関し、特に電力増幅器の出力を
２つの伝送路の一方から他方へ切替える切替制御方式に
関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a switching control system, and more particularly to a switching control system for switching the output of a power amplifier from one of two transmission lines to the other.
従来、電力増幅器の出力を２つの伝送路の一方から他方
へ切替える制御は、電力増幅器の出力電力を監視しつつ
切替器制御装置から電力増幅器に出力遮断信号を送出
し、この出力電力が予め設定された所定の電力値以下に
低下した場合に、電力増幅器から送出される警報信号を
切替器制御装置で受け取った後、切替器制御装置から切
替器へ切替信号を送出し、切替終了後に電力増幅器の出
力遮断状態を解除するものであった。Conventionally, the control for switching the output of the power amplifier from one of the two transmission lines to the other is performed by monitoring the output power of the power amplifier and sending an output cutoff signal from the switch controller to the power amplifier, and the output power is preset. When the power signal drops below the specified power level, the switch controller receives a warning signal sent from the power amplifier, and then the switch controller sends a switch signal to the switch, and after the switching, the power amplifier Was to release the output cutoff state.
上述した従来の切替制御方式では、電力増幅器の出力電
力を監視しつつ、出力電力が所定設定値以下に低下した
場合に電力増幅器から送出される警報信号を切替器の切
替制御のために使用しているので、切替器の切替時に既
に電力増幅器の出力がある程度低下して警報信号が送出
されている場合には、切替器制御装置の回路方式によっ
ては、電力増幅器の出力が強制的に完全に遮断される以
前に切替器制御装置から切替信号が送出され、電力増幅
器からの出力電力が入力されている状態で切替器が切替
わることがある。In the conventional switching control method described above, while monitoring the output power of the power amplifier, an alarm signal sent from the power amplifier when the output power drops below a predetermined set value is used for switching control of the switch. Therefore, if the output of the power amplifier has already dropped to some extent and a warning signal has been sent when the switch is switched, the output of the power amplifier may be forced to be completely output depending on the circuit system of the switch controller. A switching signal may be sent from the switching device control device before being cut off, and the switching device may be switched while the output power from the power amplifier is being input.
このとき、その出力端への反射電力が予め設定された所
定の電力値以上に増加した場合に、電力増幅器の運転を
強制的に停止する保護機能が電力増幅器にある場合、こ
の保護機能の作用により電力増幅器の運転が強制的に停
止されるという欠点がある。At this time, if the power amplifier has a protection function that forcibly stops the operation of the power amplifier when the reflected power to the output end increases above a predetermined power value set in advance, the action of this protection function This has the disadvantage that the operation of the power amplifier is forcibly stopped.
本考案は確実かつ容易に切替動作を行うことができる切
替制御方式を提供することを目的としている。An object of the present invention is to provide a switching control system that can perform switching operation reliably and easily.
本考案の切替制御方式は、電力増幅器の出力端への反射
信号を検出する第１の手段と、前記第１の手段の出力信
号のレベルを検出する第２の手段と、電力増幅器の出力
信号を検出する第３の手段と、前記第３の手段の出力信
号のレベルを検出する第４の手段と、前記第２の手段の
出力電圧と前記第４の手段の出力電圧とを入力し通常時
は第２の手段を、電力増幅器の出力伝送路の切替時は第
４の手段を選択して切替出力する第５の手段と、前記第
５の手段の出力電圧と基準電圧とを比較し、通常時にそ
の比較結果がある設定値以上になった場合に電力増幅器
の出力を強制的に遮断する第６の手段と、電力増幅器の
電力伝送路の切替時に電力増幅器の出力を強制的に遮断
し、かつ前記第６の手段の比較結果がある設定値以下に
なった場合に伝送路切替器への切替信号を送出する第７
の手段とを有し、この切替信号により電力増幅器の出力
を２つの伝送路の一方から他方へ切替えるようにした構
成である。The switching control system of the present invention comprises a first means for detecting a reflected signal to the output end of the power amplifier, a second means for detecting the level of the output signal of the first means, and an output signal of the power amplifier. And a fourth means for detecting the level of the output signal of the third means, an output voltage of the second means and an output voltage of the fourth means are input. When the output transmission path of the power amplifier is switched, the fifth means for selecting and outputting the fourth means is compared with the output voltage of the fifth means and the reference voltage. A sixth means for forcibly shutting off the output of the power amplifier when the comparison result exceeds a certain set value during normal operation, and forcibly shutting off the output of the power amplifier when switching the power transmission path of the power amplifier. And when the comparison result of the sixth means is below a certain set value, transmission is performed. Seventh sending a switching signal to the switching device
And a means for switching the output of the power amplifier from one of the two transmission lines to the other by the switching signal.
以下、本考案を図面を参照して説明する。 Hereinafter, the present invention will be described with reference to the drawings.
図は本考案の一実施例の機能ブロック図である。The figure is a functional block diagram of an embodiment of the present invention.
図示のように、電力増幅器１の出力信号は、方向性結合
器２（第１の手段）及び方向性結合器３（第３の手段）
を通過して切替器４へ供給されている。通常時には、方
向性結合器２によって検出された電力増幅器１の出力端
への反射信号は、検波器５（第２の手段）でそのレベル
を検出されレベルに応じた電圧となり、切替器７（第５
の手段）を経由して比較器９（第６の手段）において基
準電圧８と比較される。このとき、電力増幅器１の出力
端への反射信号のレベルが電力増幅器１の動作に影響を
与えるような高いレベルであれば、比較器９は第６の手
段として機能して電力増幅器１の運転を停止する。As shown, the output signal of the power amplifier 1 has a directional coupler 2 (first means) and a directional coupler 3 (third means).
And is supplied to the switching device 4. Normally, the reflected signal to the output end of the power amplifier 1 detected by the directional coupler 2 has its level detected by the detector 5 (second means) and becomes a voltage corresponding to the level, and the switch 7 ( Fifth
And the reference voltage 8 is compared in the comparator 9 (sixth means). At this time, if the level of the reflected signal to the output end of the power amplifier 1 is high enough to affect the operation of the power amplifier 1, the comparator 9 functions as a sixth means to operate the power amplifier 1. To stop.
切替器４の切替時には、切替器７は検波器６（第４の手
段）側を選択し、方向性結合器３によって検出された電
力増幅器１の出力信号は、検波器６でそのレベルを検出
されレベルに応じた電圧となり、比較器９において基準
電圧８と比較される。このとき、電力増幅器の出力信号
が全反射した場合にそのレベルが電力増幅器１の動作に
影響を与えるような高いレベルであれば、電力増幅器１
は強制的に出力を遮断させられる。When the switch 4 is switched, the switch 7 selects the detector 6 (fourth means) side, and the output signal of the power amplifier 1 detected by the directional coupler 3 is detected by the detector 6 in its level. Then, the voltage becomes a voltage according to the level and is compared with the reference voltage 8 in the comparator 9. At this time, if the level of the output signal of the power amplifier is high enough to affect the operation of the power amplifier 1 when the output signal of the power amplifier is totally reflected, the power amplifier 1
Is forced to shut off the output.
切替器制御装置11（第７の手段）は、切替信号発生器10
からの信号を受け取った後、切替器７を検波器６側に切
替え、電力増幅器の出力信号が全反射した場合にそのレ
ベルが電力増幅器１の動作に何ら影響を与えないような
低いレベルであるという信号を比較器９から受取り、切
替器４を切替える機能を有する。The switching device control device 11 (seventh means) includes a switching signal generator 10
After receiving the signal from, the switching device 7 is switched to the detector 6 side, and when the output signal of the power amplifier is totally reflected, its level is such a low level that does not affect the operation of the power amplifier 1. Has a function of receiving a signal from the comparator 9 and switching the switch 4.
なお、比較器９において、電力増幅器１がその出力端へ
の反射信号によって動作に影響を受けると判断された場
合、切替器７の状態によって、電力増幅器１の運転停止
あるいは出力遮断のみのいずれかの動作が電力増幅器１
内で決定される。When the comparator 9 determines that the operation of the power amplifier 1 is affected by the reflected signal to the output end of the comparator 9, either the operation of the power amplifier 1 is stopped or the output of the power amplifier 1 is cut off depending on the state of the switch 7. Operation of power amplifier 1
To be determined within.
また、特に図示しないが、検波器６の出力は、従来と同
様電力増幅器１の出力電力が所要の設定値以下になった
場合に警報信号を発生するためにも使用され得るものと
する。Although not shown in particular, the output of the detector 6 can be used to generate an alarm signal when the output power of the power amplifier 1 becomes equal to or lower than a required set value as in the conventional case.
以上説明したように本考案は、電力増幅器の出力電力と
その出力端への反射電力とを切替えて監視することによ
り、反射電力による影響がない値以下に電力増幅器の出
力が低下した場合に切替器の切替えを行う為、確実にか
つ容易に切替動作を行うことができるという効果があ
る。As described above, the present invention switches the output power of the power amplifier and the reflected power to the output end by switching and monitors the output power when the output of the power amplifier drops below a value not affected by the reflected power. Since the vessels are switched, there is an effect that the switching operation can be performed reliably and easily.
図は本考案の一実施例を示す機能ブロック図である。 １……電力増幅器、２……方向性結合器（第１の手
段）、３……方向性結合器（第３の手段）、４……切替
器、５……検波器（第２の手段）、６……検波器（第４
の手段）、７……切替器（第６の手段）、８……基準電
圧、９……比較器（第６の手段）、10……切替信号発生
器、11……切替器制御装置（第７の手段）。FIG. 1 is a functional block diagram showing an embodiment of the present invention. 1 ... Power amplifier, 2 ... Directional coupler (first means), 3 ... Directional coupler (third means), 4 ... Switch, 5 ... Detector (second means) ), 6 ... Detector (4th
Means), 7 ... switching device (sixth means), 8 ... reference voltage, 9 ... comparator (sixth means), 10 ... switching signal generator, 11 ... switching device control device ( Seventh means).
Claims (1)
る第１の手段と、前記第１の手段の出力信号のレベルを
検出する第２の手段と、電力増幅器の出力信号を検出す
る第３の手段と、前記第３の手段の出力信号のレベルを
検出する第４の手段と、前記第２の手段の出力電圧と前
記第４の手段の出力電圧とを入力し通常時は第２の手段
を、電力増幅器の出力伝送路の切替時は第４の手段を選
択して切替出力する第５の手段と、前記第５の手段の出
力電圧と基準電圧とを比較し、通常時にその比較結果が
ある設定値以上になった場合に電力増幅器の出力を強制
的に遮断する第６の手段と、電力増幅器の出力伝送路の
切替時に電力増幅器の出力を強制的に遮断し、かつ前記
第６の手段の比較結果がある設定値以下になった場合に
伝送路切替器への切替信号を送出する第７の手段とを有
し、前記切替信号により電力増幅器の出力を２つの伝送
路の一方から他方へ切替えることを特徴とする切替制御
方式。1. A first means for detecting a reflected signal to an output end of a power amplifier, a second means for detecting a level of the output signal of the first means, and an output signal of the power amplifier. The third means, the fourth means for detecting the level of the output signal of the third means, the output voltage of the second means and the output voltage of the fourth means are input, and normally the first means is input. When the output transmission path of the power amplifier is switched, the second means selects the fourth means and switches and outputs the second means, and the output voltage of the fifth means and the reference voltage are compared with each other. Sixth means for forcibly shutting off the output of the power amplifier when the comparison result exceeds a certain set value, and forcibly shutting off the output of the power amplifier when switching the output transmission path of the power amplifier, and If the comparison result of the sixth means is less than or equal to a certain set value, Switching control method, characterized by exchange and a seventh means for sending a signal, it switches the output of the power amplifier from one of the two transmission lines to the other by the switching signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18280886U JPH0638495Y2 (en) | 1986-11-29 | 1986-11-29 | Switching control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18280886U JPH0638495Y2 (en) | 1986-11-29 | 1986-11-29 | Switching control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6390338U JPS6390338U (en) | 1988-06-11 |
| JPH0638495Y2 true JPH0638495Y2 (en) | 1994-10-05 |
Family
ID=31128951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18280886U Expired - Lifetime JPH0638495Y2 (en) | 1986-11-29 | 1986-11-29 | Switching control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638495Y2 (en) |
-
1986
- 1986-11-29 JP JP18280886U patent/JPH0638495Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6390338U (en) | 1988-06-11 |
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