JPS5827406A - Broad band variable frequency oscillator - Google Patents
Broad band variable frequency oscillatorInfo
- Publication number
- JPS5827406A JPS5827406A JP12559381A JP12559381A JPS5827406A JP S5827406 A JPS5827406 A JP S5827406A JP 12559381 A JP12559381 A JP 12559381A JP 12559381 A JP12559381 A JP 12559381A JP S5827406 A JPS5827406 A JP S5827406A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- frequency oscillator
- variable frequency
- circuit
- variable
- 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
- 230000010355 oscillation Effects 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 239000010453 quartz Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、水晶発振器の出力ｆｎ倍電圧整流して得られ
る高電圧を利用する□広帯域可変周波数発振器に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wideband variable frequency oscillator that utilizes a high voltage obtained by rectifying the output fn of a crystal oscillator.
従来、この種の可変周波数発振器として、パリキアップ
ダイオードの印加電圧を変化させて発振周波数（自走周
波数）を変化させるよう構成したものが知られているが
、この印加電圧は回路の電源電圧で限定されてしまうた
め９発振周波数の範囲も限定されてしまうのが実情でお
る。このため１発振周波数の範囲を拡大するには１発振
周波数を決定するコイルまたはコンデンサを発振周波数
帯にょジ切り換えている。しかしながら、このような回
路では１回路素子が多く調整７メ困難であり、しかもコ
スト高となる難点がある。Conventionally, this type of variable frequency oscillator is known to have a configuration in which the oscillation frequency (free-running frequency) is changed by changing the voltage applied to a parikiup diode, but this applied voltage is controlled by the power supply voltage of the circuit. The reality is that the range of nine oscillation frequencies is also limited. Therefore, in order to expand the range of one oscillation frequency, the coil or capacitor that determines one oscillation frequency is changed over to the oscillation frequency band. However, such a circuit has many disadvantages in that it has many single circuit elements and is difficult to adjust, and is also expensive.
本発明は前述した従来の周波数発振器の問題点に鑑みて
なされたものであり、その目的とするところは、水晶発
振器の出方ｋｎ倍電圧整流して高電圧を得ることにより
、バリキアップダイオードの印加電圧範囲を広くして可
変周波発振器を広帯域化することができる広帯域可変周
波数発振器を提供することにある。The present invention has been made in view of the problems of the conventional frequency oscillator described above, and its purpose is to obtain a high voltage by rectifying the output voltage of the crystal oscillator by kn times, thereby increasing the voltage of the variable up diode. It is an object of the present invention to provide a wideband variable frequency oscillator that can widen the applied voltage range to make the variable frequency oscillator wider.
次に９本発明に係る広帯域可変周波数発振器の実施例に
つき添付図面を参照して以下詳細に説明する。Next, nine embodiments of the wideband variable frequency oscillator according to the present invention will be described in detail below with reference to the accompanying drawings.
第１図は９本発明の実施例を示す回路図である。第１図
において、１，２．３はそれぞれ水晶発振器を示し、そ
れぞれｆｔ 、 ／２ 、 ／３の周波数を発振する。FIG. 1 is a circuit diagram showing nine embodiments of the present invention. In FIG. 1, reference numerals 1 and 2.3 indicate crystal oscillators, which oscillate at frequencies of ft, /2, and /3, respectively.
４は選択スイッチで前記水晶発振器１．２．３のいずれ
か全選択するためのものである。５ ｆｌ ｍ分周器、
６は位相比較器、７は低域フィルタ、８は可変周波数発
振器、９は増幅回路、 １０はｎ倍電圧整流回路、１１
は安定化回路。Reference numeral 4 denotes a selection switch for selecting all of the crystal oscillators 1, 2, and 3. 5 fl m frequency divider,
6 is a phase comparator, 7 is a low-pass filter, 8 is a variable frequency oscillator, 9 is an amplifier circuit, 10 is an n-fold voltage rectifier circuit, 11
is a stabilization circuit.
１２にバリキアノプダイオード印加電圧調整用可変抵抗
切換スイッチ、 １３は可変周波数発振器の出力端子で
ある。１７’Ｃ，ＬｌとＣＤＩは可変周波数発振器８の
発振周波数（自走周波数）を決定するためのコイルとバ
リキアノプダイオード。12 is a variable resistance changeover switch for adjusting the voltage applied to the Varikian op diode, and 13 is an output terminal of a variable frequency oscillator. 17'C, Ll and CDI are a coil and a Varikian op diode for determining the oscillation frequency (free running frequency) of the variable frequency oscillator 8.
ＣＤ２Ｕ位相比較器６および低域フィルタ７の出力によ
り系のロックレンジおよびキャプチャレンジを決めるバ
リキアソプダイオード、ＣＩ、Ｃ２は直流阻止用のコン
デンサ、Ｒ１１ｉ抵抗、 ＲＶＩ〜ＲＶ３はＯＴ変低抵
抗ある。The outputs of the CD2U phase comparator 6 and low-pass filter 7 determine the lock range and capture range of the system. CI and C2 are DC blocking capacitors, R11i is a resistor, and RVI to RV3 are OT variable resistors.
本発明に係る広帯域可変周波数発振器は９以上の回路構
成からなり、以下にこのように構成された回路の動作に
ついて説明する。The wideband variable frequency oscillator according to the present invention has nine or more circuit configurations, and the operation of the circuit configured in this way will be described below.
まず９選択スイッチ４によりいずれかの水晶発振器１〜
３の出方が選択され、この選択された水晶発振器出力は
増幅回路９で電源電圧まで増幅された後ｎ倍電圧整流回
路１ｏで整流される。First, use the 9 selection switch 4 to select one of the crystal oscillators 1-
3 is selected, and the selected crystal oscillator output is amplified to the power supply voltage by the amplifier circuit 9 and then rectified by the n-fold voltage rectifier circuit 1o.
このようにして、ｎ倍電圧整流回路１ｏで得られる整流
出力電圧は、電源電圧のｎ倍となる。次いで、このｎ倍
電圧は、安定化回路１１で安定化され、抵抗Ｒ１と可変
抵抗ＲＶＩ〜ＲＶ３ Ｋより分割される。この場合、可
変抵抗ＲＶＩ〜ＲＶ３ ｔ！ 。In this way, the rectified output voltage obtained by the n-fold voltage rectifier circuit 1o is n times the power supply voltage. Next, this n-fold voltage is stabilized by the stabilizing circuit 11 and divided by the resistor R1 and variable resistors RVI to RV3K. In this case, variable resistors RVI to RV3 t! .
水晶発振器１〜３を選択する選択スイッチと連動する切
換スイッチ１２により、いずれかの可変抵抗が選択的に
接続される。分割された電圧は。Any one of the variable resistors is selectively connected by a changeover switch 12 that operates in conjunction with a selection switch that selects crystal oscillators 1 to 3. The divided voltage is.
可変周波数発振器８の発振周波数（自走周波数）を決定
するバリキアップダイオードＣＤＩに印加される。従っ
て、水晶発振器１〜３によって選択された周波数帯毎に
可変抵抗ＲＶＩ〜ＲＶ３を選択的に調整することにエリ
、バリキアップダイオードＣＤＩの印加電圧を調整する
ことができ。It is applied to the variable up diode CDI which determines the oscillation frequency (free running frequency) of the variable frequency oscillator 8. Therefore, by selectively adjusting the variable resistors RVI to RV3 for each frequency band selected by the crystal oscillators 1 to 3, the voltage applied to the variable up diode CDI can be adjusted.
可変周波数発振器８の発振周波数範囲を任意に設定する
ことができる。％に９本発明によれば。The oscillation frequency range of the variable frequency oscillator 8 can be set arbitrarily. According to the invention.
バリキアップダイオードＣＤＩの印加電圧となる安定化
回路１１の出力電圧を高電圧に設定することができるた
め、バリキアップダイオードＣＤＩの印加電圧を広範囲
に調整することができ、この結果可変周波数発振器８の
発振周波数を広範囲に設定することができる。Since the output voltage of the stabilizing circuit 11, which is the voltage applied to the variable frequency oscillator CDI, can be set to a high voltage, the voltage applied to the variable frequency oscillator CDI can be adjusted over a wide range. The oscillation frequency can be set over a wide range.
なお、前述した本発明回路において、ｎ倍電圧整流回路
ｌＯへ供給する入力として水晶発振器の出力を利用して
いるが、この水晶発振器に代えて自励発振器やＤＣ−Ｄ
Ｃコンバータ等を利用することも可能である。しかしな
がら、これらの手段によれば、水晶発振器に比べて部品
点数が多く、コスト高となるばかりでなく１発振周波数
によってはスプリアス等の問題を発生する難点がある。Note that in the above-mentioned circuit of the present invention, the output of the crystal oscillator is used as the input to be supplied to the n-fold voltage rectifier circuit lO, but instead of this crystal oscillator, a self-excited oscillator or a DC-D
It is also possible to use a C converter or the like. However, according to these means, the number of parts is larger than that of a crystal oscillator, and not only is the cost high, but also problems such as spurious waves may occur depending on one oscillation frequency.
第２図は、前述した本発明実施例回路の発振周波数の特
性を示した説明図である。すなわち。FIG. 2 is an explanatory diagram showing the oscillation frequency characteristics of the circuit according to the embodiment of the invention described above. Namely.
第２図において、 ｍｆ ｌ、 ｍｆ ２ 、 ｍｆ
３は、水晶発振器１，２．３がそれぞれ周波数！＋、ｆ
ｚ、ｆ３で発振している時の可変周波数発振器８の出力
周波数である。従って、ΔＬｎ、バリキアップダイオー
ドＣＤＩの印加電圧を調整することにより得られる可変
周波数発振器８の発振周波数（自走周、波数）の範囲を
示す。なお、Δ／ ２１△／ ３ ＋△ｆ４は。In Figure 2, mf l, mf 2, mf
3 is the frequency of crystal oscillators 1, 2.3, respectively! +, f
This is the output frequency of the variable frequency oscillator 8 when oscillating at z and f3. Therefore, ΔLn indicates the range of the oscillation frequency (free-running frequency, wave number) of the variable frequency oscillator 8 that can be obtained by adjusting the voltage applied to the variable-frequency oscillator CDI. In addition, Δ/ 21 Δ/ 3 + Δf4 is.
可変周波数発振器８が周波数ｆＦｌ／ ） 、ｆＦｌｆ
２ 、ｔｒｉ／ ３ で発振している時、バリキアッ
プダイオードＣＤ２の印加電圧すなわち低域フィルタ７
の出力電圧による系のキャプチャレンジを示す。The variable frequency oscillator 8 has a frequency fFl/), fFlf
2, when oscillating at tri/3, the applied voltage of the variable up diode CD2, that is, the low-pass filter 7
shows the capture range of the system depending on the output voltage.
前述した実施例から明らかなように１本発明によれば１
発振周波数を数段階に設定した水晶発振器から選択的に
出力を取り出し、この水晶発振器田方ｆｎ倍電圧整流し
て電源電圧のｎ倍の電圧を得ることにより、可変周波数
発振器を構成するバリキアップダイオードの印加電圧を
広範囲に調整することができ、簡単な回路構成で高性能
の広域帯可変周波数発振器を提供することができる。As is clear from the embodiments described above, according to the present invention, 1
By selectively extracting the output from a crystal oscillator whose oscillation frequency is set in several stages, and rectifying the crystal oscillator Tagata fn times the voltage to obtain a voltage n times the power supply voltage, the variable frequency oscillator is configured with a variable-up diode. The applied voltage can be adjusted over a wide range, and a high-performance wideband variable frequency oscillator can be provided with a simple circuit configuration.
以上９本発明の好適な実施例について説明したが１本発
明の精神を逸脱しない範囲内において種々の設計変更を
なし得ることは勿論である。Although nine preferred embodiments of the present invention have been described above, it goes without saying that various design changes can be made without departing from the spirit of the present invention.
第１図は本発明に係る広帯域０Ｔ変周波数発振器の一実
施例を示す回路図、第２図は第１図に示す回路の発振周
波数特性を示す説明図である。
１．２．３・・・水晶発振器、４・・選択スイッチ。
５・・・ｍ分周器、６・・位相比較回路、７・・・低域
フィルタ、８・・・可変周波数発振器、９・・・増幅回
路１０・・・ｎ倍電圧整流回路、 １１・・・安定化回
路、１２・・・切換スイッチ、１３・・・出刃端子
ＣＤＩ・・・可変周波数発振器用バリキアップダイオー
ド。
ＲＶＩ 、 ＲＶ２ 、 ＲＶ３・・・バリキアップダ
イオート”ＣＤＩ印加電圧調整用可変抵抗。
特許出願人 日本無線株式会社FIG. 1 is a circuit diagram showing an embodiment of a wideband 0T variable frequency oscillator according to the present invention, and FIG. 2 is an explanatory diagram showing oscillation frequency characteristics of the circuit shown in FIG. 1. 1.2.3...Crystal oscillator, 4...Selection switch. 5... m frequency divider, 6... phase comparison circuit, 7... low pass filter, 8... variable frequency oscillator, 9... amplifier circuit 10... n-fold voltage rectifier circuit, 11. ... Stabilization circuit, 12... Selector switch, 13... Deba terminal CDI... Variable up diode for variable frequency oscillator. RVI, RV2, RV3... Variable up-die auto "CDI variable resistor for adjusting applied voltage. Patent applicant: Japan Radio Co., Ltd.
Claims (1)
ることにより発振周波数を可調整に構成した可変周波数
発振器において２発振周波数の異なる複数の水晶発振器
と、いずれかの水晶発振器の出力を選択してこれを増幅
すると共にｎ倍電圧整流する回路と、該回路によって得
られｆｃ−ｎ倍電圧を可調整に分圧して可変周波数発振
器を構成する前記バリキアップダイオードの印加電圧を
調整する回路とを設けることを特徴とする広帯域可変周
波数発振器。 （２、特許請求の範囲第１項記載の広帯域可変周波数発
振器において、水晶発振器の出力全選択してこれを増幅
すると共にｎ倍電圧整流する回路に、複数の水晶発振器
と選択的に接続する選択スイッチと、増幅回路と、ｎ倍
電圧整流回路とから構成してなる広帯域可変周波数発振
器。 （３）特許請求の範囲第１項または第２項記載の広帯域
可変周波数発振器において、ｎ倍電圧を可調整に分圧し
てバリキアノプダイオードの印加電圧を調整する回路は
、抵抗と複数の可変抵抗とからなり、複数の可変抵抗を
水晶発振器の出力の選択に応じて切換スイッチにより選
択的に接続してなる広帯域可変周波数発振器。 （４）特許請求の範囲第３項記載の広帯域可変周波数発
振器において、複数の水晶発振器と選択的に接続する選
択スイッチと、複数の可変抵抗と選択的に接続する切換
スイッチとを連動するよう構成してなる広帯域可変周波
数発振器。[Scope of Claims] (1) In a variable frequency oscillator whose oscillation frequency is adjustable by adjusting the voltage applied to a variable-up diode, a plurality of crystal oscillators with two different oscillation frequencies and an output of one of the crystal oscillators a circuit that selects and amplifies this and rectifies the n-fold voltage; and a circuit that adjustably divides the fc-n-fold voltage obtained by the circuit to adjust the voltage applied to the variable frequency oscillator that configures the variable frequency oscillator. A wideband variable frequency oscillator comprising a circuit. (2. In the broadband variable frequency oscillator according to claim 1, the selection is made of selectively connecting a plurality of crystal oscillators to a circuit that selects all the outputs of the crystal oscillators, amplifies them, and rectifies the voltage by n times. A wideband variable frequency oscillator composed of a switch, an amplifier circuit, and an n-fold voltage rectifier circuit. (3) In the wideband variable frequency oscillator according to claim 1 or 2, an n-fold voltage is possible. The circuit that divides the voltage and adjusts the voltage applied to the Balikyanopdiode consists of a resistor and multiple variable resistors, and the multiple variable resistors are selectively connected using a changeover switch according to the selection of the output of the crystal oscillator. (4) In the wideband variable frequency oscillator according to claim 3, a selection switch selectively connects to a plurality of crystal oscillators and a switch selectively connects to a plurality of variable resistors. A wideband variable frequency oscillator configured to operate in conjunction with a switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559381A JPS5827406A (en) | 1981-08-11 | 1981-08-11 | Broad band variable frequency oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559381A JPS5827406A (en) | 1981-08-11 | 1981-08-11 | Broad band variable frequency oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5827406A true JPS5827406A (en) | 1983-02-18 |
| JPS6258562B2 JPS6258562B2 (en) | 1987-12-07 |
Family
ID=14913988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12559381A Granted JPS5827406A (en) | 1981-08-11 | 1981-08-11 | Broad band variable frequency oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02229914A (en) * | 1989-03-01 | 1990-09-12 | T Echi K Kk | Bearing for linear sliding and its mounting method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04256723A (en) * | 1991-02-08 | 1992-09-11 | Nagoya Kani Douraku:Kk | Pot washing machine |
-
1981
- 1981-08-11 JP JP12559381A patent/JPS5827406A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02229914A (en) * | 1989-03-01 | 1990-09-12 | T Echi K Kk | Bearing for linear sliding and its mounting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6258562B2 (en) | 1987-12-07 |
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