JPS6321362B2 - - Google Patents
Info
- Publication number
- JPS6321362B2 JPS6321362B2 JP3299981A JP3299981A JPS6321362B2 JP S6321362 B2 JPS6321362 B2 JP S6321362B2 JP 3299981 A JP3299981 A JP 3299981A JP 3299981 A JP3299981 A JP 3299981A JP S6321362 B2 JPS6321362 B2 JP S6321362B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- high frequency
- error amplifier
- integrator
- signal
- 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
Links
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control
- G05B7/02—Arrangements for obtaining smooth engagement or disengagement of automatic control electric
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
【発明の詳細な説明】
この発明は高周波増幅器の出力電力を自動的に
安定化する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically stabilizing the output power of a high frequency amplifier.
従来この種の装置として第１図に示すものがあ
つた。図において１は高周波前置増幅器（または
周波数変換器）、２はPINダイオード等を用いた
可変減衰器、３は高周波電力増幅器、４は方向性
結合器、５は空中線等の負荷、６は高周波信号か
ら直流信号への変換器、７は出力電力指示計、８
は閉ループ時（自動制御時）の出力電力設定器、
９は誤差増幅器、１０は開ループ時（手動制御
時）の出力電力設定器、１１はループ開閉用スイ
ツチ（又はリレー等）の接点、ａは高周波電力増
幅器３の出力電力、ｂは方向性結合器４により取
出された出力電力ａの一部、ｃは信号ｂ従つて信
号ａに比例した直流信号、ｄは自動制御用出力電
力設定器８の出力、ｅは誤差増幅器９の出力、ｆ
は手動制御用出力電力設定器１０の出力である。 A conventional device of this type is shown in FIG. In the figure, 1 is a high frequency preamplifier (or frequency converter), 2 is a variable attenuator using a PIN diode, etc., 3 is a high frequency power amplifier, 4 is a directional coupler, 5 is a load such as an antenna, and 6 is a high frequency Converter from signal to DC signal, 7 is output power indicator, 8
is the output power setting device during closed loop (automatic control),
9 is an error amplifier, 10 is an output power setting device during open loop (manual control), 11 is a contact of a loop opening/closing switch (or relay, etc.), a is the output power of the high frequency power amplifier 3, and b is a directional coupling. c is a DC signal proportional to signal b and therefore signal a, d is the output of the automatic control output power setting device 8, e is the output of the error amplifier 9, f
is the output of the output power setting device 10 for manual control.
次に動作について説明する。高周波前置増幅器
（または周波数変換器）１の高周波出力は、可変
減衰器２を経て電力増幅器３にて増幅される。こ
の電力増幅器３の出力ａの大部分は方向性結合性
結合器４を経て空中線等の負荷５へ供給される
が、方向性結合器４により出力ａの一部ｂが取り
出される。この高周波出力ｂは、高周波直流変換
器６により高周波電力に比例した直流出力ｃに置
換されて出力電力指示計７及び誤差増幅器９に接
続される。誤差増幅器９は上記直流信号ｃと、自
動制御用電力設定器８の直流出力信号ｄとを比較
増幅し誤差信号ｅを出力する。ループ開閉用スイ
ツチ（又はリレー等）接点１１により、上記誤差
信号ｅが可変減衰器２に与えられている場合には
負帰還ループが構成されるので、高周波出力電力
ａは出力電力設定器８の出力信号ｄに応じて設定
される。かつ負帰還作用により、前置増幅器１の
出力変動や電力増幅器３の利得変動が抑圧される
ため安定化された高周波出力電力ａが得られる。
一方、ループ開閉用スイツチ接点１１によりルー
プが開かれ、手動制御用電力設定器１０の出力信
号ｆが可変減衰器２に与えられている場合には、
高周波出力電力ａは信号ｆの値に応じて設定され
るが前述の前置増幅器１の出力変動や電力増幅器
３の利得変動がそのまま高周波出力電力ａの変動
となる。 Next, the operation will be explained. The high frequency output of the high frequency preamplifier (or frequency converter) 1 is amplified by a power amplifier 3 via a variable attenuator 2. Most of the output a of the power amplifier 3 is supplied to a load 5 such as an antenna via a directional coupler 4, but a part b of the output a is taken out by the directional coupler 4. This high frequency output b is converted by a high frequency DC converter 6 into a DC output c proportional to the high frequency power, and is connected to an output power indicator 7 and an error amplifier 9. The error amplifier 9 compares and amplifies the DC signal c and the DC output signal d of the automatic control power setting device 8, and outputs an error signal e. When the error signal e is applied to the variable attenuator 2 by the loop opening/closing switch (or relay, etc.) contact 11, a negative feedback loop is configured, so that the high frequency output power a is set by the output power setting device 8. It is set according to the output signal d. Further, due to the negative feedback effect, fluctuations in the output of the preamplifier 1 and fluctuations in the gain of the power amplifier 3 are suppressed, so that stabilized high-frequency output power a can be obtained.
On the other hand, when the loop is opened by the loop opening/closing switch contact 11 and the output signal f of the manual control power setting device 10 is given to the variable attenuator 2,
The high-frequency output power a is set according to the value of the signal f, and the aforementioned output fluctuations of the preamplifier 1 and gain fluctuations of the power amplifier 3 directly become fluctuations in the high-frequency output power a.
従来の高周波電力安定化装置は以上のように構
成されているので、手動制御から自動制御に切換
える際、手動制御にて規定値付近の高周波出力電
力を得ていても負帰還ループが開いているため誤
差増幅器の利得によりこの誤差増幅器出力が大き
くなり、自動制御とした直後規定出力となるまで
高周波出力電力が変動する欠点があり、また自動
制御から手動制御に切換える際にも、たとえば電
力増幅器の利得が変動してこの変動分を自動制御
にて補償している場合この補償分が不用であるた
め、手動制御に切換えた後の高周波出力電力が所
望する手動制御レベルとならないなどの欠点があ
つた。 Conventional high-frequency power stabilization devices are configured as described above, so when switching from manual control to automatic control, a negative feedback loop is opened even if high-frequency output power is obtained near the specified value with manual control. Therefore, the output of the error amplifier increases due to the gain of the error amplifier, and the high-frequency output power fluctuates until it reaches the specified output immediately after automatic control is activated.Also, when switching from automatic control to manual control, for example, the output of the power amplifier increases. If the gain fluctuates and this fluctuation is compensated for by automatic control, this compensation is unnecessary, so there are drawbacks such as the high frequency output power not reaching the desired manual control level after switching to manual control. Ta.
この発明は上記のような従来のものの欠点を除
去するためになされたもので、誤差増幅器の後段
に新しく積分器を設け、かつ手動制御指令値とこ
の積分器出力とを常時比較増幅する第２の誤差増
幅器を設け、手動制御時にはこの第２の誤差増幅
器出力を積分器入力にフイードバツグすることに
より手動→自動切換後高周波出力電力が急変なく
規定値に達するようにし、かつ上記第２の誤差増
幅器出力に新しく自動制御量指示計を設け、自動
→手動切換後に高周波出力電力を所望の手動制御
レベルにすることができる高周波電力安定化装置
を提供することを目的としている。 This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and includes a new integrator installed after the error amplifier, and a second integrator that constantly compares and amplifies the manual control command value and the output of this integrator. An error amplifier is provided, and during manual control, the output of this second error amplifier is fed back to the integrator input so that the high frequency output power reaches the specified value without sudden changes after switching from manual to automatic. It is an object of the present invention to provide a high frequency power stabilizing device which is equipped with a new automatic control amount indicator at the output and can bring the high frequency output power to a desired manual control level after switching from automatic to manual.
以下、この発明の一実施例を図について説明す
る。第２図において、１〜１０及び信号ａ〜ｆは
第１図に示す従来の装置と同一である。１１ａ及
び１１ｂは負帰還ループ開閉用スイツチ（又はリ
レー等）の接点、１２は積分器、１３は第２の誤
差増幅器、１４は自動制御量指示計であり、ｇは
積分器１２の出力信号、ｈは第２の誤差増幅器１
２の出力信号である。 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, 1-10 and signals a-f are the same as in the conventional device shown in FIG. 11a and 11b are contacts of a negative feedback loop opening/closing switch (or relay, etc.), 12 is an integrator, 13 is a second error amplifier, 14 is an automatic control amount indicator, g is an output signal of the integrator 12, h is the second error amplifier 1
This is the output signal of No. 2.
本発明は負帰還ループ開閉時の急激な高周波出
力電力の変動を防止することが目的であり、以下
その動作に重点をおき説明する。第２図（開ルー
プ状態）において、高周波出力電力ａは手動制御
用出力電力設定器１０により設定される。この設
定器１０の出力ｆと積分器１２の出力ｇとは第２
の誤差増幅器１３の入力に接続される。第２の誤
差増幅器１３は上記２つの信号を比較増幅し、誤
差信号ｈを出力する。この誤差信号ｈは第１のル
ープ開閉用接点１１ａにより積分器１２の入力に
接続される。上記のように接点１１ａ、積分器１
２及び第２の誤差増幅器は第２の閉ループを構成
するので、積分器１２の出力ｇは手動制御用出力
電力設定器１０の出力ｆとほぼ同一の値とするこ
とができる。この開ループ（手動制御）状態から
第３図に示す閉ループ（自動制御）状態への移行
は接点１１ａ及び１１ｂを切換えることにより行
なわれる。この移行に伴ない高周波出力電力ａは
手動制御での設定値から自動制御時の設定値へと
移行するが積分器１２の作用により、この高周波
電力ａの移行を急変なく滑らかに行なうことがで
きる。また閉ループ状態において、制御量指示計
１４の目盛を較正しておくことにより負帰還制御
による制御量、即ち手動制御時での高周波出力電
力ａと自動制御時の高周波出力電力ａとの差を常
時観測できる。従つて自動制御状態にてこの制御
量指示計１４の目盛が零となるよう手動制御用出
力電力設定器１０を調整しておけば、自動制御か
ら手動制御に切換えても、切換後に急変なく同一
の高周波出力電力ａを得ることが可能である。 The purpose of the present invention is to prevent rapid fluctuations in high-frequency output power when the negative feedback loop is opened and closed, and the following description will focus on its operation. In FIG. 2 (open loop state), the high frequency output power a is set by the output power setting device 10 for manual control. The output f of the setting device 10 and the output g of the integrator 12 are the second
is connected to the input of the error amplifier 13. The second error amplifier 13 compares and amplifies the two signals and outputs an error signal h. This error signal h is connected to the input of the integrator 12 through the first loop opening/closing contact 11a. As mentioned above, contact 11a, integrator 1
2 and the second error amplifier constitute a second closed loop, the output g of the integrator 12 can be set to approximately the same value as the output f of the manual control output power setting device 10. Transition from this open loop (manual control) state to the closed loop (automatic control) state shown in FIG. 3 is effected by switching contacts 11a and 11b. Accompanying this transition, the high frequency output power a shifts from the set value under manual control to the set value during automatic control, but due to the action of the integrator 12, this transition of high frequency power a can be performed smoothly without sudden changes. . In addition, in a closed loop state, by calibrating the scale of the controlled variable indicator 14, the controlled variable by negative feedback control, that is, the difference between the high-frequency output power a during manual control and the high-frequency output power a during automatic control, can be constantly monitored. It can be observed. Therefore, if the manual control output power setter 10 is adjusted so that the scale of the controlled variable indicator 14 is zero in the automatic control state, even if automatic control is switched to manual control, the output power will remain the same without sudden changes after switching. It is possible to obtain a high frequency output power a of .
また上記実施例では高周波電力安定化装置の場
合について説明したが、他のフイードバツグ制御
装置であつてもよく、上記実施例と同様の効果を
奏する。 Further, in the above embodiment, a high frequency power stabilizing device has been described, but other feedback control devices may be used, and the same effects as in the above embodiment can be obtained.
以上のように、この発明によれば、従来の高周
波電力安定化装置に、積分器、誤差増幅器、制御
量指示計を追加することにより、自動−手動切換
を高周波出力電力の急変なしに行なうことが可能
になる。 As described above, according to the present invention, by adding an integrator, an error amplifier, and a controlled variable indicator to a conventional high-frequency power stabilizing device, automatic-manual switching can be performed without sudden changes in high-frequency output power. becomes possible.
第１図は従来の高周波電力安定化装置を示すブ
ロツク図、第２図はこの発明の一実施例による高
周波電力安定化装置の手動制御状態を示すブロツ
ク図、第３図は同じく、自動制御状態を示すブロ
ツク図である。
１……前置増幅器（あるいは周波数変換器）、
２……可変減衰器、３……高周波電力増幅器、４
……方向性結合器、５……空中線等の負荷、６…
…高周波直流変換器、７……出力電力計、８……
自動制御用出力電力設定器、９……第１の誤差増
幅器、１０……手動制御用出力電力設定器、１１
ａ……第１のループ開閉用接点、１１ｂ……第２
のループ開閉用接点、１２……積分器、１３……
第２の誤差増幅器、１４……自動制御量指示計、
ａ……高周波電力増幅器３の高周波出力信号、ｂ
……上記ａの一部、ｃ……高周波信号ｂに比例し
た直流信号、ｄ……自動制御用基準信号、ｅ……
第１の誤差増幅器ａの出力信号、ｆ……手動制御
用基準信号、ｇ……積分器１２の出力信号、ｈ…
…第２の誤差増幅器１３の出力信号。なお、図中
同一符号は同一、又は相当部分を示す。
FIG. 1 is a block diagram showing a conventional high frequency power stabilizing device, FIG. 2 is a block diagram showing a manual control state of a high frequency power stabilizing device according to an embodiment of the present invention, and FIG. 3 is a block diagram showing an automatic control state. FIG. 1... Preamplifier (or frequency converter),
2... Variable attenuator, 3... High frequency power amplifier, 4
... Directional coupler, 5 ... Load such as antenna, 6 ...
...High frequency DC converter, 7...Output wattmeter, 8...
Output power setting device for automatic control, 9...First error amplifier, 10...Output power setting device for manual control, 11
a...First loop opening/closing contact, 11b...Second
Loop opening/closing contact, 12... Integrator, 13...
second error amplifier, 14... automatic control variable indicator;
a... High frequency output signal of the high frequency power amplifier 3, b
...Part of the above a, c...DC signal proportional to high frequency signal b, d... Reference signal for automatic control, e...
Output signal of the first error amplifier a, f... Reference signal for manual control, g... Output signal of the integrator 12, h...
...Output signal of the second error amplifier 13. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
減衰器、上記高周波増幅器の出力の一部を取り出
しこれを直流信号に変換する高周波直流変換器、
この高周波直流変換器の直流信号と自動制御用基
準信号とを比較増幅する第１の誤差増幅器、積分
器、この積分器出力と手動制御用基準信号とを比
較する第２の誤差増幅器、第１の誤差増幅器出力
と第２の誤差増幅器出力とを切換えて上記積分器
入力に接続する第１のループ開閉用接点、上記積
分器の出力と手動制御用基準信号とを切換えて前
記可変減衰器に与える第２のループ開閉用接点及
び上記第２の誤差増幅器出力に接続され自動制御
時にその制御量を表示する指示計とを備え、自動
制御時には上記第１のループ開閉用接点にて上記
第１の誤差増幅器出力を上記積分器入力に接続し
かつ上記第２のループ開閉用接点にて積分器出力
を可変減衰器に与え、手動制御時には上記第１の
ループ開閉用接点にて第２の誤差増幅器出力を積
分器入力に接続しかつ第２のループ開閉用接点に
て手動制御用基準信号を可変減衰器に与えたこと
を特徴とする高周波電力安定化装置。1 a high frequency variable attenuator connected to the input of a high frequency amplifier; a high frequency DC converter that takes out a part of the output of the high frequency amplifier and converts it into a DC signal;
A first error amplifier and an integrator that compare and amplify the DC signal of this high frequency DC converter and a reference signal for automatic control; a second error amplifier that compares the output of this integrator with a reference signal for manual control; a first loop opening/closing contact that switches between an error amplifier output and a second error amplifier output and connects to the integrator input; and an indicator connected to the output of the second error amplifier and displaying the controlled amount during automatic control, and the first loop opening/closing contact is connected to the output of the second error amplifier during automatic control. The error amplifier output of is connected to the integrator input, and the integrator output is applied to the variable attenuator through the second loop opening/closing contact, and during manual control, the second error is detected through the first loop opening/closing contact. A high-frequency power stabilizing device characterized in that an amplifier output is connected to an integrator input, and a reference signal for manual control is applied to a variable attenuator through a second loop opening/closing contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3299981A JPS57147311A (en) | 1981-03-05 | 1981-03-05 | Stabilizing device for high frequency electric power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3299981A JPS57147311A (en) | 1981-03-05 | 1981-03-05 | Stabilizing device for high frequency electric power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57147311A JPS57147311A (en) | 1982-09-11 |
| JPS6321362B2 true JPS6321362B2 (en) | 1988-05-06 |
Family
ID=12374544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3299981A Granted JPS57147311A (en) | 1981-03-05 | 1981-03-05 | Stabilizing device for high frequency electric power |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57147311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007185894A (en) * | 2006-01-13 | 2007-07-26 | Komatsu Zenoah Co | Chain saw |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59194525A (en) * | 1983-04-20 | 1984-11-05 | Fujitsu Ltd | Switching circuit |
| JPH0748622B2 (en) * | 1985-10-04 | 1995-05-24 | 日本電気株式会社 | AGC amplifier |
| JPS62135218U (en) * | 1986-02-20 | 1987-08-26 | ||
| US7205842B2 (en) * | 2005-01-13 | 2007-04-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Continuous alternating closed-open loop power control |
-
1981
- 1981-03-05 JP JP3299981A patent/JPS57147311A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007185894A (en) * | 2006-01-13 | 2007-07-26 | Komatsu Zenoah Co | Chain saw |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57147311A (en) | 1982-09-11 |
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