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JPS6218998Y2 - - Google Patents

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Publication number
JPS6218998Y2
JPS6218998Y2 JP8909081U JP8909081U JPS6218998Y2 JP S6218998 Y2 JPS6218998 Y2 JP S6218998Y2 JP 8909081 U JP8909081 U JP 8909081U JP 8909081 U JP8909081 U JP 8909081U JP S6218998 Y2 JPS6218998 Y2 JP S6218998Y2
Authority
JP
Japan
Prior art keywords
voltage
power
output
power supply
stabilized
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
Application number
JP8909081U
Other languages
Japanese (ja)
Other versions
JPS57200937U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8909081U priority Critical patent/JPS6218998Y2/ja
Publication of JPS57200937U publication Critical patent/JPS57200937U/ja
Application granted granted Critical
Publication of JPS6218998Y2 publication Critical patent/JPS6218998Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 この考案は例えばテレビジヨン放送機あるいは
FM放送機等に適用される送信機の出力電力調整
装置に関する。
[Detailed explanation of the invention] This invention can be used for example in television broadcasting equipment or
This invention relates to a transmitter output power adjustment device applied to FM broadcasters, etc.

周知のように、テレビジヨン用音声放送機ある
いはFM放送機等の半導体化された大電力送信機
においては、複数個に電力増幅器を並列運転して
所定の出力を得るよう構成されている。これらの
電力増幅器は高能率化を目的として、C級または
D級の電力増幅器とされているため、送信機の出
力電力を調整する場合は各電力増幅器の電源電圧
を調整する必要がある。また、電力増幅器の電源
は使用されるトランジスタの動作の安定化を図る
ため、直流安定化電源が使用される場合が多い。
しかも、電源部の事故による停波を防ぐため直流
安定化電源は各電力増幅器に対応して設けられ
る。
As is well known, high power semiconductor transmitters such as television audio broadcasters or FM broadcasters are configured to operate a plurality of power amplifiers in parallel to obtain a predetermined output. These power amplifiers are class C or class D power amplifiers for the purpose of increasing efficiency, so when adjusting the output power of the transmitter, it is necessary to adjust the power supply voltage of each power amplifier. Furthermore, in order to stabilize the operation of the transistors used, a DC stabilized power supply is often used as the power supply for the power amplifier.
Moreover, in order to prevent power outage due to an accident in the power supply unit, a DC stabilized power supply is provided corresponding to each power amplifier.

第1図は従来の構成を示すものである。11
a,11b〜11nはそれぞれ電力増幅器であ
り、12a,12b〜12nはそれぞれ各電力増
幅器11a,11b〜11nに接続された直流安
定化電源である。入力端子13に供給された高周
波信号は分配器14により各電力増幅器11a,
11b〜11nに分配され増幅される。各電力増
幅器11a,11b〜11nの出力信号は合成器
15によつて合成され、出力端子16から取出さ
れて図示せぬ空中線に供給される。
FIG. 1 shows a conventional configuration. 11
a, 11b to 11n are power amplifiers, and 12a, 12b to 12n are DC stabilized power supplies connected to the power amplifiers 11a, 11b to 11n, respectively. The high frequency signal supplied to the input terminal 13 is sent to each power amplifier 11a,
11b to 11n and amplified. The output signals of the power amplifiers 11a, 11b to 11n are combined by a combiner 15, taken out from an output terminal 16, and supplied to an antenna (not shown).

ところで、上記構成において出力電力を調整す
る場合は各電力増幅器11a,11b〜11nに
対応した直流安定化電源12a,12b〜12n
の出力電圧をそれぞれ同じように調整する必要が
あるが、各直流安定化電源12a,12b〜12
nを均等に調整して運用中に出力電力計を目視し
ながら調整する場合は、先ず大まかに直流安定化
電源の出力を一律に設定した後出力電力を確認
し、その結果によりさらに微調整しなければなら
ないため、操作が極めて煩雑なものであつた。
By the way, when adjusting the output power in the above configuration, the DC stabilized power supplies 12a, 12b to 12n corresponding to each power amplifier 11a, 11b to 11n are used.
It is necessary to adjust the output voltage of each DC stabilized power supply 12a, 12b to 12 in the same way.
If you want to uniformly adjust n while visually checking the output wattmeter during operation, first roughly set the output of the DC stabilized power supply uniformly, then check the output power, and then make further fine adjustments based on the results. Therefore, the operation was extremely complicated.

この考案は上記事情に基づいてなされたもの
で、複数個の電力増幅器にそれぞれ接続された直
流安定化電源における基準電圧を電圧調整器の出
力電圧によつて同時に可変することにより、簡単
な操作で正確に出力電力を調整することが可能な
送信機の出力電力調整装置を提供しようとするも
のである。
This idea was developed based on the above-mentioned circumstances, and it can be easily operated by simultaneously varying the reference voltage in the DC stabilized power supply connected to multiple power amplifiers by the output voltage of the voltage regulator. It is an object of the present invention to provide an output power adjustment device for a transmitter that can accurately adjust output power.

以下、この考案の一実施例について図面を参照
して説明する。尚、第2図において第1図と同一
部分には同一符号を付し説明は省略する。
An embodiment of this invention will be described below with reference to the drawings. In FIG. 2, the same parts as in FIG. 1 are designated by the same reference numerals, and their explanation will be omitted.

第2図において、各電力増幅器11a,11b
〜11nに接続された直流安定化電源21a,2
1b〜21nはそれぞれ電圧調整器22によつて
一括して調整される。即ち、直流安定化電源21
a,21b〜21nおよび電圧調整器22は第3
図に示す構成とされている。尚、直流安定化電源
21a,21b〜21nは総べて同一構成である
ため21aについてのみ示す。第3図において直
流安定化電源21aの入力端子31に供給された
直流入力はDC−DCコンバータ32により所定電
圧とされ、出力端子33を介して電力増幅器11
aに供給される。これとともに、DC−DCコンバ
ータ32の出力電圧は抵抗34,35によつて分
割され比較回路36に供給される。この比較回路
36には所定の基準電圧が設定されており、この
基準電圧と分割電圧とが比較される。この両者の
誤差電圧は制御回路37に供給され、この制御回
路37により前記誤差電圧に応じてDC−DCコン
バータ32が制御され安定した出力電圧が取出さ
れる。また、前記比較回路36には外部接続端子
38,39が設けられており、この端子38,3
9を介して電圧調整器22の出力電圧が供給され
る。この電圧調整器22は直流安定化電源40お
よび可変抵抗器41から構成され、可変抵抗器4
1を調整することにより所望の出力電圧(調整電
圧)が設定される。しかして、この出力電圧は端
子38,39を介して比較回路36に供給され、
この出力電圧により前記基準電圧が可変されて直
流安定化電源の出力電圧が可変される。
In FIG. 2, each power amplifier 11a, 11b
- DC stabilized power supply 21a, 2 connected to 11n
The voltage regulators 1b to 21n are individually adjusted by the voltage regulator 22. That is, the DC stabilized power supply 21
a, 21b to 21n and the voltage regulator 22 are the third
The configuration is shown in the figure. Incidentally, since all of the DC stabilized power supplies 21a, 21b to 21n have the same configuration, only 21a is shown. In FIG. 3, the DC input supplied to the input terminal 31 of the DC stabilized power supply 21a is converted to a predetermined voltage by the DC-DC converter 32, and is then connected to the power amplifier 11 via the output terminal 33.
supplied to a. At the same time, the output voltage of the DC-DC converter 32 is divided by resistors 34 and 35 and supplied to a comparison circuit 36. A predetermined reference voltage is set in this comparison circuit 36, and this reference voltage and the divided voltage are compared. Both error voltages are supplied to a control circuit 37, which controls the DC-DC converter 32 in accordance with the error voltage to obtain a stable output voltage. Further, the comparison circuit 36 is provided with external connection terminals 38 and 39.
The output voltage of the voltage regulator 22 is supplied via 9. This voltage regulator 22 is composed of a DC stabilized power supply 40 and a variable resistor 41.
1, a desired output voltage (adjusted voltage) is set. This output voltage is then supplied to the comparator circuit 36 via terminals 38 and 39.
The reference voltage is varied by this output voltage, and the output voltage of the DC stabilized power supply is varied.

上記構成によれば、電圧調整器22の出力電圧
により直流安定化電源21a,21b〜21nの
基準電圧を同時に可変して安定化電源21a,2
1b〜21nの出力電圧を調整している。したが
つて、各電力増幅器11a,11b〜11nの出
力電力を同時且つ正確に調整できるものである。
また、運用中であつても送信機の出力電力計を目
視しながら電圧調整器22の可変抵抗41のみを
操作することにより、送信機の出力電力を所望の
値とすることが可能であるため、従来に比べて調
整に要する操作が極めて簡単である。
According to the above configuration, the reference voltages of the DC stabilized power supplies 21a, 21b to 21n are simultaneously varied by the output voltage of the voltage regulator 22, and the stabilized power supplies 21a, 2
The output voltages of 1b to 21n are adjusted. Therefore, the output power of each power amplifier 11a, 11b to 11n can be adjusted simultaneously and accurately.
Furthermore, even during operation, it is possible to set the output power of the transmitter to a desired value by operating only the variable resistor 41 of the voltage regulator 22 while visually checking the output power meter of the transmitter. The operation required for adjustment is extremely simple compared to the conventional method.

尚、この考案は上記実施例に限定されるもので
はなく、例えば直流安定化電源21a,21b〜
21nはシリーズドロツパ式、スイツチング式の
電源に限らずその他の方式のものでもよい。ま
た、直流安定化電源21a,21b〜21nは電
力増幅器11a,11b〜11nに内蔵されてい
てもよい。
Note that this invention is not limited to the above embodiments, and for example, the DC stabilized power supplies 21a, 21b to
21n is not limited to the series dropper type or switching type power supply, but may be of any other type. Further, the DC stabilized power supplies 21a, 21b to 21n may be built in the power amplifiers 11a, 11b to 11n.

さらに、電圧調整器22における直流安定化電
源40としてはどのようなものでもよい。
Furthermore, any DC stabilized power supply 40 in the voltage regulator 22 may be used.

その他、この考案の要旨を変えない範囲で種々
変形実施可能なことは勿論である。
It goes without saying that various other modifications can be made without departing from the gist of the invention.

以上、詳述したようにこの考案によれば、簡単
な操作で正確に出力電力を調整することが可能な
送信機の出力電力調整装置を提供できる。
As described in detail above, according to this invention, it is possible to provide an output power adjustment device for a transmitter that can accurately adjust output power with simple operations.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の送信機の電力増幅器の一例を示
す構成図、第2図はこの考案に係わる送信機の出
力電力調整装置の一実施例を示す構成図、第3図
は第2図の要部を取出して具体的に示す構成図で
ある。 11a,11b〜11n……電力増幅器、21
a,21b〜21n……直流安定化電源、22…
…電圧調整器。
FIG. 1 is a block diagram showing an example of a power amplifier of a conventional transmitter, FIG. 2 is a block diagram showing an example of a transmitter output power adjustment device according to this invention, and FIG. FIG. 2 is a configuration diagram specifically showing main parts. 11a, 11b to 11n...power amplifier, 21
a, 21b to 21n...DC stabilized power supply, 22...
...voltage regulator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 並列接続された複数個の電力増幅器と、これら
各電力増幅器にそれぞれ接続され出力電圧より分
割された電圧が基準電圧に一致するよう制御され
て安定な直流電圧を前記電力増幅器に供給する直
流安定化電源と、所望の調整電圧を発生しこの調
整電圧により前記複数の直流安定化電源における
基準電圧を可変する電圧調整器とを具備したこと
を特徴とする送信機の出力電力調整装置。
A plurality of power amplifiers connected in parallel, and DC stabilization that is connected to each of these power amplifiers and is controlled so that the voltage divided from the output voltage matches a reference voltage to supply a stable DC voltage to the power amplifier. An output power adjusting device for a transmitter, comprising: a power source; and a voltage regulator that generates a desired adjusted voltage and uses the adjusted voltage to vary reference voltages in the plurality of DC stabilized power sources.
JP8909081U 1981-06-17 1981-06-17 Expired JPS6218998Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8909081U JPS6218998Y2 (en) 1981-06-17 1981-06-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8909081U JPS6218998Y2 (en) 1981-06-17 1981-06-17

Publications (2)

Publication Number Publication Date
JPS57200937U JPS57200937U (en) 1982-12-21
JPS6218998Y2 true JPS6218998Y2 (en) 1987-05-15

Family

ID=29884248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8909081U Expired JPS6218998Y2 (en) 1981-06-17 1981-06-17

Country Status (1)

Country Link
JP (1) JPS6218998Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI727034B (en) * 2016-06-24 2021-05-11 日商東京計器股份有限公司 Amplifying device

Also Published As

Publication number Publication date
JPS57200937U (en) 1982-12-21

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