JPS63202106A - Negative voltage generating circuit - Google Patents
Negative voltage generating circuitInfo
- Publication number
- JPS63202106A JPS63202106A JP62033245A JP3324587A JPS63202106A JP S63202106 A JPS63202106 A JP S63202106A JP 62033245 A JP62033245 A JP 62033245A JP 3324587 A JP3324587 A JP 3324587A JP S63202106 A JPS63202106 A JP S63202106A
- Authority
- JP
- Japan
- Prior art keywords
- negative voltage
- amplifier
- signal
- converter
- oscillator
- 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.)
- Pending
Links
- 239000000284 extract Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000009499 grossing Methods 0.000 abstract description 4
- 238000010348 incorporation Methods 0.000 abstract 1
- 230000010349 pulsation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Amplifiers (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は負の電圧を必要とする増幅器の負電圧発生方法
に係シ、特に％増幅する信号に妨害を与えることのない
小形化の可能な負電圧発生方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a negative voltage generation method for an amplifier that requires a negative voltage, and in particular, it is possible to downsize the amplifier without interfering with the signal to be amplified. This invention relates to a negative voltage generation method.
ガリウム砒素ショットキー型電界効果トランジス１１
（ＧａＡｓ ＭＥＳＦＥＴ ）を使用した電力増幅器
は電力変換効率が高く、小形・軽量化の要求される携帯
型無線器用として大きな期待が持たれている。しかしな
がら、使用するＧａ、ＡｓＭＥＳＦＥＴはノーマリオ／
をであり、ゲート電圧として負の電源を必要とする。従
って、ＧａＡｓＭＥ８ＦＥＴを使用した電力増幅器搭載
の携帯用無線器は、専用の負の電池を設けるか、又は、
昭和６１年度信全大会４２３４５に述べられているよう
に正の電源からＤＣ−Ｌ）Ｃコンバータを使用して、負
の電圧を作り出す必要がめる。Gallium arsenide Schottky field effect transistor 11
Power amplifiers using (GaAs MESFETs) have high power conversion efficiency and are expected to be used in portable wireless devices that require small size and light weight. However, the Ga, As MESFET used is normal/
and requires a negative power supply as the gate voltage. Therefore, a portable radio device equipped with a power amplifier using GaAsME8FET must be equipped with a dedicated negative battery or
As stated in 1985 Shinzenkai 42345, it is necessary to create a negative voltage from a positive power source using a DC-L)C converter.
上記従来技術のうち、負の電池を設ける方法は。 Among the above conventional techniques, the method of providing a negative battery is as follows.
小形・軽量化の要求される携帯型無線器には不適当であ
る。父、ＤＣ−ＤＣコンバータを用いる場合、スイッチ
ング用として数十ＫＨｚから数百ＫＨｚの発振器を必要
とする。従って、スイッチング用の発振器より１発振波
が電力増幅器にまわり込み不要妨害波を発生しやすいと
いう欠点がある。父、電力増幅器で増幅する波に対して
妨害を与えやすいため、負の電圧発生装置も内蔵した電
力増幅器のモジュール化は極めて困難である。It is unsuitable for portable radio devices that require small size and light weight. When using a DC-DC converter, an oscillator with a frequency of several tens of KHz to several hundred KHz is required for switching. Therefore, there is a drawback that one oscillation wave is more likely to wrap around the power amplifier and generate unnecessary interference waves than in a switching oscillator. However, it is extremely difficult to modularize a power amplifier that also includes a built-in negative voltage generator because it is easy to interfere with the waves being amplified by the power amplifier.
本発明の目的は、発振器を必要とせず、従って、増幅器
の増幅する波に妨害を与えない、又、増幅器モジュール
内に一体化の可能な負電圧発生手段を提供することにあ
る。It is an object of the present invention to provide a negative voltage generating means which does not require an oscillator and therefore does not interfere with the waves being amplified by the amplifier, and which can be integrated into an amplifier module.
上記目的は、増幅器が増幅する交流波の一部を取り出し
て使用することで達成される。The above object is achieved by extracting and using a part of the alternating current wave that is amplified by the amplifier.
従来、負の電源電圧をつくり出すために、別途。 Traditionally, to create a negative power supply voltage, a separate
発振器を用いていたのに対し、増幅器で増幅する交流波
出力の一部を使用するので、負電圧を作り出すための特
別な発振器を必要としない。Whereas an oscillator was used, a part of the AC wave output that is amplified by an amplifier is used, so there is no need for a special oscillator to generate the negative voltage.
従って、増幅器で増幅する交流波に妨害？与えることが
なく、また、増幅器モジュール内に内蔵も可能である。Therefore, does it interfere with the AC wave being amplified by the amplifier? It can also be built into the amplifier module.
以下、本発明の実施例を第１図の携帯型無線機の送信部
を用いて説明する。Embodiments of the present invention will be described below using the transmitting section of the portable radio shown in FIG.
まず、全体構成について説明する。１は電圧制御発振器
、２はバッファアンプ、３はドライバー７ｙプ、４はバ
ンドパスフィルタ、５は負電圧を必要とする電力増幅器
、６はサーキュレータであり、７が本発明による負電圧
を発生実現する回路である。First, the overall configuration will be explained. 1 is a voltage controlled oscillator, 2 is a buffer amplifier, 3 is a driver 7yp, 4 is a band pass filter, 5 is a power amplifier that requires a negative voltage, 6 is a circulator, and 7 is a device that generates a negative voltage according to the present invention. This is a circuit that does this.
次に、負電圧発生回路７の詳細について説明する。７−
１は、増幅する信号の一部を取り出すカップラー、７−
２は取り出した交流信号を検波する検波回路、７−３は
検波信号の脈流を平滑化する平滑回路である。７−４が
負の電圧が出力される出力端子である。Next, details of the negative voltage generating circuit 7 will be explained. 7-
1 is a coupler that takes out a part of the signal to be amplified; 7-
2 is a detection circuit for detecting the extracted AC signal, and 7-3 is a smoothing circuit for smoothing the pulsating flow of the detection signal. 7-4 is an output terminal from which a negative voltage is output.
信号をとり出すためのカップラー（又は、それにかわる
もの）は、必ずしも図示の位置にある必要はなく、父、
整流回路７−２も倍電圧整流回路など、他の手段も含ま
れる。The coupler (or something that replaces it) for taking out the signal does not necessarily have to be in the position shown in the figure;
The rectifier circuit 7-2 also includes other means such as a voltage doubler rectifier circuit.
以上の説明により１本発明によれば、ＤＣ−ＤＣコンバ
ータを用いる必要がなく、従って、ＤＣ−ＤＣコンバー
タに使用している発振器を必要とせず、信号波に対し不
要妨害を与えることはない。又、発振器を使用しないた
め小形化も可能であり、増幅器モジュールへの一体化も
可能である。According to the above explanation, according to the present invention, there is no need to use a DC-DC converter, and therefore, there is no need for an oscillator used in the DC-DC converter, and no unnecessary interference is caused to signal waves. Furthermore, since no oscillator is used, it can be made smaller and can be integrated into an amplifier module.
又、第２図は他の実施例を示す。本実施例は。Moreover, FIG. 2 shows another embodiment. This example is.
ゲート電圧として負の電圧を必要とするノーマリオン型
のＱａＡｓ−ｆｌ’Ｅ’ｌ’に適用する場合である。This is a case of application to normally-on type QaAs-fl'E'l' which requires a negative voltage as a gate voltage.
同図において、２−１はノーマリオン型のＧａＡｓ−Ｆ
ＥＴ、２−２はダイオード、２−３は抵抗、２−４は容
量である５本実施例の場合、高周波信号が入力されると
、２−３の抵抗と、２−４の容量とで決定される時定数
で、ゲートバイアスが負の方向へバイアスされる。本実
施例においても、発振器を使用しないので信号波に妨害
を与えることもなく、増幅器モジュール内への組み込み
も可能となる。In the figure, 2-1 is a normally-on type GaAs-F
ET, 2-2 is a diode, 2-3 is a resistor, and 2-4 is a capacitor. When a high frequency signal is input, the resistor 2-3 and the capacitor 2-4 The gate bias is biased in the negative direction with a determined time constant. Also in this embodiment, since no oscillator is used, there is no interference with the signal wave, and it is possible to incorporate it into an amplifier module.
本発明によれば、ＤＣ−ＤＣコンバータに用いている発
振器を必要とせず、従って、増幅する信号波に不要妨害
を与えない。従って増幅器モジュールへの内蔵も可能と
なる。According to the present invention, the oscillator used in the DC-DC converter is not required, and therefore no unnecessary interference is caused to the signal wave to be amplified. Therefore, it is possible to incorporate it into an amplifier module.
第１図は本発明による負電圧発生回路を携帯型の
無線機に適用したー実施例ｐ略図、第２図は１本発明に
よる負電圧発生回路の他の一実施例の回路図を示す。
１・・・電圧制御型発振器、２・・・バッファアンプ、
３・・・ドライバアンプ、４・・・帯域通過フィルタ、
５・・・電力増幅器、６・・・サーキュレータ、７・・
・負電圧発生回路、７−１・・・カップラー％７−２・
・・検波回路。
７−３・・・平滑回路、７−４・・・負電圧、７−４・
・・負電圧出力端子、２−１・・・ノーマリオン型Ｇａ
ＡＳ−ＦＥＴ、２−２・・・ダイオード、２−３・・・
抵抗。
２−４・・・容量。FIG. 1 is a schematic diagram of an embodiment in which the negative voltage generating circuit according to the present invention is applied to a portable radio device, and FIG. 2 is a circuit diagram of another embodiment of the negative voltage generating circuit according to the present invention. 1... Voltage controlled oscillator, 2... Buffer amplifier,
3... Driver amplifier, 4... Band pass filter,
5...Power amplifier, 6...Circulator, 7...
・Negative voltage generation circuit, 7-1...Coupler %7-2・
...Detection circuit. 7-3... Smoothing circuit, 7-4... Negative voltage, 7-4.
... Negative voltage output terminal, 2-1... Normally-on type Ga
AS-FET, 2-2...diode, 2-3...
resistance. 2-4...Capacity.
Claims (1)
電源電圧を、上記増幅器の増幅する交流信号の一部を取
り出して負電圧を得る負電圧発生回路。1. In an amplifier that requires a negative power supply voltage, a negative voltage generation circuit that extracts a part of the AC signal amplified by the amplifier to obtain a negative voltage from the negative power supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62033245A JPS63202106A (en) | 1987-02-18 | 1987-02-18 | Negative voltage generating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62033245A JPS63202106A (en) | 1987-02-18 | 1987-02-18 | Negative voltage generating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63202106A true JPS63202106A (en) | 1988-08-22 |
Family
ID=12381094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62033245A Pending JPS63202106A (en) | 1987-02-18 | 1987-02-18 | Negative voltage generating circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63202106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5327583A (en) * | 1990-09-13 | 1994-07-05 | Hitachi, Ltd. | Using a clock signal generated by a microcomputer for providing a negative bias voltage to a galium arsenide field effect transistor in a high frequency amplifier of the device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354281U (en) * | 1986-09-27 | 1988-04-12 |
-
1987
- 1987-02-18 JP JP62033245A patent/JPS63202106A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354281U (en) * | 1986-09-27 | 1988-04-12 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5327583A (en) * | 1990-09-13 | 1994-07-05 | Hitachi, Ltd. | Using a clock signal generated by a microcomputer for providing a negative bias voltage to a galium arsenide field effect transistor in a high frequency amplifier of the device |
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