JPS6346008A - Power controlling method - Google Patents
Power controlling methodInfo
- Publication number
- JPS6346008A JPS6346008A JP18845486A JP18845486A JPS6346008A JP S6346008 A JPS6346008 A JP S6346008A JP 18845486 A JP18845486 A JP 18845486A JP 18845486 A JP18845486 A JP 18845486A JP S6346008 A JPS6346008 A JP S6346008A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- bias voltage
- mos
- power
- power control
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 230000010355 oscillation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010897 surface acoustic wave method Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 101710116852 Molybdenum cofactor sulfurase 1 Proteins 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電力増幅器の電力制御の方法に係）。[Detailed description of the invention] [Industrial application field] The present invention relates to a method of power control of a power amplifier).
％に、駆動増幅器と電力増幅器の間に帯域フィルタを挿
入した無線機送信部の、安定な電力制御の方法に関する
。%, relates to a method for stable power control of a radio transmitter in which a bandpass filter is inserted between a drive amplifier and a power amplifier.
従来、自動車電話器の送信部は、第２図に示すような構
成が採用されている。このような構成をとる送信部の電
力制御は、実開昭６０−２２０１６に示されるように１
ｗＬ力増幅器の電源電圧を制御する方法がとられている
。Conventionally, a transmitting section of a car telephone has adopted a configuration as shown in FIG. The power control of the transmitter having such a configuration is as shown in Utility Model Application Laid-Open No. 60-22016.
A method has been adopted to control the power supply voltage of the wL force amplifier.
これに対し、ポータプル用移動電話において第３図に示
すように、駆動増幅器と電力増幅器の間に帯域フィルタ
を挿入することで送信部を従来のものに比べ、大幅に小
形化したものもある（特願昭６１−１６７１１１゜
〔発明が解決しようとする問題点〕
ここで、上述の如く小型化した送信部の構成に。On the other hand, as shown in Figure 3, some mobile phones for portable use have a transmitter section that is significantly smaller than the conventional one by inserting a bandpass filter between the drive amplifier and the power amplifier ( Japanese Patent Application No. 61-167111 [Problems to be Solved by the Invention] Here, we will discuss the structure of the transmitting section which is miniaturized as described above.
従来のように、前述した電力増幅器の電源電圧を制御す
る電力制御の方法を採用すると、以下のような問題が発
生する。（以下、素子としてＭＯＳ−１：Ｔを使用し、
電力制御用バイアス電圧としてゲート電圧を使用した場
合を例にして述べる。）電力増幅器のゲルト電圧を制御
した場合、第４図に示したように、２点よりみた。電力
増幅器の入力電圧定在波比（ＶＳＷＲ）の変化、すなわ
ち、入力インピーダンスの変化が大きくなる。このイン
ピーダンスの変化は前述の如くして小型化された送信部
構成では、駆動増幅器に対しては、帯域フィルタを介し
て、負荷インピーダンス変動となる。一般に、増幅器は
、出力負荷変動に対しては。If the conventional power control method of controlling the power supply voltage of the power amplifier described above is employed, the following problems occur. (Hereafter, MOS-1:T is used as the element,
An example will be described in which a gate voltage is used as a bias voltage for power control. ) When the gel voltage of the power amplifier is controlled, as shown in FIG. 4, it is viewed from two points. The change in the input voltage standing wave ratio (VSWR) of the power amplifier, that is, the change in the input impedance becomes large. In the transmitting section configuration miniaturized as described above, this change in impedance becomes a load impedance change for the drive amplifier via the bandpass filter. In general, amplifiers are designed for output load fluctuations.
不安定となシ１発振を起こしやすい。It is easy to cause unstable oscillation.
本発明の目的は、本構成の小形化を妨げずにこの不安定
要因（発振）を防止することにある。An object of the present invention is to prevent this unstable factor (oscillation) without hindering the miniaturization of this configuration.
上記目的は、電力増幅器の、初段能動素子を含む、少な
くとも１個以上の能動素子のバイアス電圧を一定に保ち
、他の残シの能動素子のバイアス電圧と、駆動増幅器の
バイアス電圧を変化させて電力制御することで達成され
る。The above purpose is to keep constant the bias voltage of at least one active element including the first stage active element of the power amplifier, and to vary the bias voltage of the remaining active elements and the bias voltage of the drive amplifier. This is achieved by controlling power.
電力増幅器の初段能動素子を含む、少なくとも１個以上
の能動素子のバイアス電圧を固定することにより、電力
制御によって駆動増幅器の負荷インピーダンスが変動す
ることはない。それによって、駆動増幅器は安定化し１
発振しなくなる。By fixing the bias voltage of at least one active element including the first-stage active element of the power amplifier, the load impedance of the drive amplifier does not change due to power control. Thereby, the drive amplifier becomes stable and 1
It stops oscillating.
以下１本発明の一実施例を第１図により説明する。１−
１は駆動増幅器、１−２はＳＡＷバンドパスフィルタ（
ＢＰＦ）、１−３は電力増幅器。An embodiment of the present invention will be described below with reference to FIG. 1-
1 is a drive amplifier, 1-2 is a SAW bandpass filter (
BPF), 1-3 are power amplifiers.
１−４は電力制御用バイアス端子（ここでは、ゲート電
圧端子）、１−５は駆動増幅器のゲートバイアス端子、
１−６はバイポーラトランジスタ、１−７〜１−１０は
ＭＯＳ−ＦＥＴである。1-4 is a bias terminal for power control (here, gate voltage terminal), 1-5 is a gate bias terminal of the drive amplifier,
1-6 is a bipolar transistor, and 1-7 to 1-10 are MOS-FETs.
従来のように、電力増幅器のゲート電圧を制御すると、
第５図に示すように、電力増幅器の入力ｖｓｗａが大き
く変化する。この入力インピーダンスの変化は、５ＡＷ
−ＢＰＦを通して第１図Ｑ点に伝達される。従って、駆
動電力増幅器の負荷インピーダンスが変動することにな
る。本例の場合負荷インピーダンスが変動した場合の、
駆動増幅器が安定に動作するのは、ＶＳＷＲ≦１．５程
度である。従って％第５図に示すように、ＶＳＷＲが１
．５以上では、不安定となり発振する。If you control the gate voltage of the power amplifier as in the past,
As shown in FIG. 5, the input vswa of the power amplifier changes greatly. This change in input impedance is 5AW
-Transmitted to point Q in Figure 1 through the BPF. Therefore, the load impedance of the drive power amplifier will vary. In this example, when the load impedance fluctuates,
The drive amplifier operates stably when VSWR≦1.5. Therefore, as shown in Figure 5, the VSWR is 1
．． If it is 5 or more, it becomes unstable and oscillates.
かかる問題を解決のために、５ＡＶＶ−ＢＰＦの周辺に
減衰器を入れるか、又は、サーキュレータを挿入するこ
とが考えられるが、小形化を妨げる。In order to solve this problem, it is possible to insert an attenuator or a circulator around the 5AVV-BPF, but this hinders miniaturization.
そこで電力増幅器のバイアス電圧（ここでは。So the bias voltage of the power amplifier (here.
ゲート電圧）を一定にし、駆動増幅器のバイアス電圧を
可変として電力制御を行なえば、駆動増幅器の負荷変動
は起らない。従って、駆動増幅器の負荷変動による不安
定要因（発振）を除去できる。If power control is performed by keeping the gate voltage constant and varying the bias voltage of the drive amplifier, load fluctuations of the drive amplifier will not occur. Therefore, instability factors (oscillations) due to load fluctuations of the drive amplifier can be eliminated.
本発明によれば、電力制御時に起こる駆動増幅器の負荷
変動をなくすことができるので、小形化を妨げずに、駆
動増幅器を安定化する効果がある。According to the present invention, it is possible to eliminate load fluctuations in the drive amplifier that occur during power control, so there is an effect of stabilizing the drive amplifier without hindering miniaturization.
第１図は本発明の一実施例になる送信系の増幅器部分の
ブロック図、第２図は従来の自動車電話の送信部の構成
を示すブロック図、第３図は帯域フィルタを駆動増幅器
直後に入れた送信系の構成を示すブロック図、第４図は
駆動増幅器、電力増幅器の両方のバイアス電圧を制御す
る電力制御の方法を示す説明図、第５図は電力増幅部の
バイアス電圧を制御した場合の入力ＶＳＷＲの変化を示
す図である。
１−１・・・駆動増幅器、１−２・・・ＳＡＷ帯域フィ
ルタ、１−３・・・電力増幅器、１−４・・・電力制御
用ゲートバイアス端子、１−５・・・電力増幅器ゲート
・（イアス端子、１−６・・バイポーラトランジスタ。
１−７．１−８．１−９．１−１０・・・Ｍ Ｏ８−呆
１ 図
電 Ｚ 図
躬 ３ 日
■ ４ 図
宴 ５ 図
）、、４用ｌ数Fig. 1 is a block diagram of the amplifier section of the transmission system according to an embodiment of the present invention, Fig. 2 is a block diagram showing the configuration of the transmitting section of a conventional car phone, and Fig. 3 shows the bandpass filter immediately after the driving amplifier. Figure 4 is an explanatory diagram showing the power control method for controlling the bias voltage of both the drive amplifier and the power amplifier, and Figure 5 is a block diagram showing the configuration of the transmission system installed. FIG. 1-1...Drive amplifier, 1-2...SAW band filter, 1-3...Power amplifier, 1-4...Gate bias terminal for power control, 1-5...Power amplifier gate・(Easy terminal, 1-6...Bipolar transistor. 1-7.1-8.1-9.1-10...M O8-呆 1 Zuden Z Zutsu 3 Day ■ 4 Zuen 5 Diagram) ,,l number for 4
Claims (1)
及び、それらの間に帯域フィルタを配置した無線機の送
信部において、駆動増幅器のバイアス電圧のみの電圧を
制御することを特徴とする電力制御方法。 ２、無線機の送信部において、駆動増幅器のバイアス電
圧と、電力増幅器の初段の能動素子を含まない能動素子
のバイアス電圧の両電圧を制御することを特徴とする電
力制御方法。[Claims] 1. A power amplifier and a driving amplifier for driving it;
and a power control method characterized by controlling only the bias voltage of a drive amplifier in a transmitter section of a radio device in which a bandpass filter is arranged between them. 2. A power control method characterized by controlling both the bias voltage of a drive amplifier and the bias voltage of an active element not including an active element in the first stage of a power amplifier in a transmitter of a radio device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61188454A JP2533497B2 (en) | 1986-08-13 | 1986-08-13 | Power control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61188454A JP2533497B2 (en) | 1986-08-13 | 1986-08-13 | Power control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6346008A true JPS6346008A (en) | 1988-02-26 |
| JP2533497B2 JP2533497B2 (en) | 1996-09-11 |
Family
ID=16223983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61188454A Expired - Lifetime JP2533497B2 (en) | 1986-08-13 | 1986-08-13 | Power control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533497B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05344021A (en) * | 1992-06-08 | 1993-12-24 | Nec Corp | Radio equipment |
| JPH08149036A (en) * | 1994-11-24 | 1996-06-07 | Saitama Nippon Denki Kk | Portable telephone set |
| KR20020026836A (en) * | 2000-10-03 | 2002-04-12 | 마리 오 휴버 | A method for reducing noise generated in a power amplifier |
| WO2002067414A1 (en) * | 2001-02-22 | 2002-08-29 | Niigata Seimitsu Co., Ltd. | Fet band amplifier |
| KR20040022254A (en) * | 2002-09-03 | 2004-03-12 | (주)나리지 온 | Power amplifier device for including power control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116719A (en) * | 1983-11-29 | 1985-06-24 | Sumitomo Metal Ind Ltd | Manufacture of steel for oil well pipe having superior corrosion resistance |
| JPS60130207A (en) * | 1983-12-19 | 1985-07-11 | Nippon Telegr & Teleph Corp <Ntt> | Power gain control system |
-
1986
- 1986-08-13 JP JP61188454A patent/JP2533497B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116719A (en) * | 1983-11-29 | 1985-06-24 | Sumitomo Metal Ind Ltd | Manufacture of steel for oil well pipe having superior corrosion resistance |
| JPS60130207A (en) * | 1983-12-19 | 1985-07-11 | Nippon Telegr & Teleph Corp <Ntt> | Power gain control system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05344021A (en) * | 1992-06-08 | 1993-12-24 | Nec Corp | Radio equipment |
| JPH08149036A (en) * | 1994-11-24 | 1996-06-07 | Saitama Nippon Denki Kk | Portable telephone set |
| KR20020026836A (en) * | 2000-10-03 | 2002-04-12 | 마리 오 휴버 | A method for reducing noise generated in a power amplifier |
| WO2002067414A1 (en) * | 2001-02-22 | 2002-08-29 | Niigata Seimitsu Co., Ltd. | Fet band amplifier |
| WO2002067415A1 (en) * | 2001-02-22 | 2002-08-29 | Niigata Seimitsu Co., Ltd. | Fet band amplifier |
| US6930552B2 (en) | 2001-02-22 | 2005-08-16 | Niigata Seimitsu Co., Ltd. | FET band amplifier |
| US6954106B2 (en) | 2001-02-22 | 2005-10-11 | Niigata Semitsu Co., Ltd. | FET band amplifier |
| US7046086B2 (en) | 2001-02-22 | 2006-05-16 | Niigata Seimitsu Co., Ltd. | FET band amplifier |
| US7049895B2 (en) | 2001-02-22 | 2006-05-23 | Niigata Seimitsu Co., Ltd. | FET band amplifier |
| KR20040022254A (en) * | 2002-09-03 | 2004-03-12 | (주)나리지 온 | Power amplifier device for including power control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2533497B2 (en) | 1996-09-11 |
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