JPH0222924A - Phase locked loop oscillator - Google Patents
Phase locked loop oscillatorInfo
- Publication number
- JPH0222924A JPH0222924A JP63171871A JP17187188A JPH0222924A JP H0222924 A JPH0222924 A JP H0222924A JP 63171871 A JP63171871 A JP 63171871A JP 17187188 A JP17187188 A JP 17187188A JP H0222924 A JPH0222924 A JP H0222924A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- balun
- winding
- reference signal
- primary
- 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
- 238000004804 winding Methods 0.000 claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 13
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 abstract description 7
- 239000006185 dispersion Substances 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、サンプリング位相検波器によって発振位相誤
差を制御する位相同期発振器に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a phase synchronized oscillator that controls oscillation phase error using a sampling phase detector.
（従来の技術）
従来の位相同期発振器は、第３図に示すように構成され
ていた。(Prior Art) A conventional phase synchronized oscillator was constructed as shown in FIG.
すなわち、第３図は従来の位相同期発振器のブロック構
成図で、１は基準信号増幅用アンプ、２はバラン、３は
インパルス発生回路、４は位相検波回路、５は基準信号
の入力端子、６は位相比較信号の入力端子、７は位相誤
差信号の出力端子、８はサンプリング位相検波器、９は
ループフィルタ、そして１０は電圧制御発振器である。That is, FIG. 3 is a block configuration diagram of a conventional phase synchronized oscillator, in which 1 is an amplifier for amplifying the reference signal, 2 is a balun, 3 is an impulse generation circuit, 4 is a phase detection circuit, 5 is an input terminal for the reference signal, and 6 7 is an input terminal for a phase comparison signal, 7 is an output terminal for a phase error signal, 8 is a sampling phase detector, 9 is a loop filter, and 10 is a voltage controlled oscillator.
従来の位相同期発振器は上記のように、入力端子５から
の基準信号と、電圧制御発振器１０の出力位相をサンプ
リング位相検波器８によって比較し。As described above, the conventional phase synchronized oscillator compares the reference signal from the input terminal 5 with the output phase of the voltage controlled oscillator 10 using the sampling phase detector 8.
それによる出力端子７からの位相誤差信号により、上記
電圧制御発振器１０の発振出力を制御しており、サンプ
リング位相検波器８に基準信号を入力するために、基準
信号増幅用アンプ１により増幅された基′＄差信号バラ
ン２を介して印加している。そして、そのバラン２はフ
ェライトコアに巻線を施して構成されており、−次側、
二次側の巻線は互いに異なったｍ対ｎ（ただし、ｍ≠ｎ
）になされている。The resulting phase error signal from the output terminal 7 controls the oscillation output of the voltage controlled oscillator 10, and in order to input the reference signal to the sampling phase detector 8, the reference signal is amplified by the reference signal amplification amplifier 1. A base difference signal is applied via the balun 2. The balun 2 is constructed by winding a ferrite core, and the - next side,
The windings on the secondary side are different m to n (where m≠n
).
（発明が解決しようとする課題）
従来のバランは上述のように一次側、二次側の巻線数が
異なっているため、製造時に一次側、二次側の巻線を別
々にフェライトに行う必要があった。そのため作業工程
数が増えるとともに、構造が複雑になって電気的特性上
もばらつきを生じ。(Problem to be solved by the invention) As mentioned above, in conventional baluns, the number of windings on the primary and secondary sides is different, so the windings on the primary and secondary sides are made separately on ferrite during manufacturing. There was a need. This increases the number of work steps, complicates the structure, and causes variations in electrical characteristics.
それを使用する位相同期発振器は調整に時間がかって量
産性に欠ける欠点があった。Phase-locked oscillators using this type of oscillator have the disadvantage that they require time to adjust and are not suitable for mass production.
本発明は上述の鑑み１作業工程数が少なく、電気的特性
が安定したバランを構成し、それにより特性にばらつき
の少ない量産性に富む位相同期発振器の提供を目的とす
る。In view of the above, an object of the present invention is to provide a phase synchronized oscillator that requires fewer steps per operation, constitutes a balun with stable electrical characteristics, and is thereby highly suitable for mass production with less variation in characteristics.
（課題を解決するための手段）
本発明は上記の目的を、サンプリング位相検波器を用い
て、電圧制御発振器出力の位相を基準信号の位相と比較
し、その位相誤差信号出力により前記電圧制御発振器出
力の位相を制御する位相同期発振器において、サンプリ
ング位相検波器にバランを介して基準信号を入力させ、
そのバランにおけるフェライトコアへの巻線数を同一に
することによって達成する。(Means for Solving the Problems) The present invention achieves the above object by comparing the phase of the output of the voltage controlled oscillator with the phase of the reference signal using a sampling phase detector, and using the output of the phase error signal to detect the voltage controlled oscillator. In a phase synchronized oscillator that controls the phase of the output, a reference signal is input to the sampling phase detector via a balun,
This is achieved by making the number of windings around the ferrite core in the balun the same.
（作 用）
本発明の構成に使用するバランは、フェライトコアの巻
線数を一次側および二次側で同じにしたので、−次側、
二次側同時に巻回することが可能で、その結果作業工程
数が減少すると共に、電気的特性が安定するから、それ
を使用する位相同期発振器は調整に時間をとらず、量産
も可能になる。(Function) In the balun used in the configuration of the present invention, the number of turns of the ferrite core is the same on the primary side and the secondary side.
It is possible to wind the secondary side at the same time, which reduces the number of work steps and stabilizes the electrical characteristics, so phase synchronized oscillators that use it do not take much time to adjust and can be mass-produced. .
（実施例） 以下、本発明を実施例により図面を用いて説明する。(Example) Hereinafter, the present invention will be explained with reference to examples and drawings.
第１図は本発明の一実施例の位相同期発振器の構成を示
すブロック図で、符号は第３図に使用したものを使用し
ている。すなわち、１は基準信号増幅用アンプ、２はバ
ラン、３はインパルス発生回路、４は位相検波回路、５
は基準信号の入力端子、６は位相比較信号の入力端子、
７は位相誤差信号の出力端子、８はサンプリング位相検
波器。FIG. 1 is a block diagram showing the configuration of a phase-locked oscillator according to an embodiment of the present invention, and the same reference numerals as those used in FIG. 3 are used. That is, 1 is a reference signal amplification amplifier, 2 is a balun, 3 is an impulse generation circuit, 4 is a phase detection circuit, and 5
is the reference signal input terminal, 6 is the phase comparison signal input terminal,
7 is an output terminal for a phase error signal, and 8 is a sampling phase detector.
９はループフィルタ、そして１０は電圧制御発振器であ
る。9 is a loop filter, and 10 is a voltage controlled oscillator.
また、第２図は本発明要部にバラン２を示す斜視図で、
１１はめがね状に形成したフェライトコア。Moreover, FIG. 2 is a perspective view showing the balun 2 as the main part of the present invention.
11 is a ferrite core formed in the shape of a pair of glasses.
１２は巻線である。12 is a winding.
本発明は第１図に示したように、サンプリング位相検波
器８はインパルス発生回路３と位相検波回路４とにより
構成されており、入力端子５からの基準信号と電圧制御
発振器１０の出力信号との位相誤差信号を出力するが、
上記、基準信号は基準信号゛増幅用アンプ１によって増
幅され、バラン２を介して印加される。そして、バラン
２は第２図に示したように、めがね状に形成したフェラ
イトコア１１に、−次側、二次側の巻数が同じのｎ対ｎ
の巻線１２を施して構成している。In the present invention, as shown in FIG. 1, the sampling phase detector 8 is composed of an impulse generating circuit 3 and a phase detection circuit 4, and the reference signal from the input terminal 5 and the output signal of the voltage controlled oscillator 10 are outputs a phase error signal of
The reference signal mentioned above is amplified by a reference signal amplification amplifier 1 and applied via a balun 2. As shown in FIG. 2, the balun 2 has a ferrite core 11 formed in the shape of a pair of glasses, with the same number of turns on the negative side and the secondary side.
It is constructed by applying a winding 12 of.
この実施例では、巻線１２の線材として線径０．３５園
のポリウレタン被覆の単線２本を２回巻回している。ま
たこのとき、基準信号増幅用アンプ１の出力インピーダ
ンス（Ｚｏ）と、サンプリング位相検波器８の入力イン
ピーダンス（Ｚｉ）の関係を、（Ｚｏ） ”＝ （Ｚｉ
）として、高い位相検波感度を得るようになされている
。In this embodiment, two polyurethane-coated single wires having a wire diameter of 0.35 mm are wound twice as the wire of the winding 12. Also, at this time, the relationship between the output impedance (Zo) of the reference signal amplification amplifier 1 and the input impedance (Zi) of the sampling phase detector 8 is expressed as (Zo) ''= (Zi
) to obtain high phase detection sensitivity.
本発明は以上のように巻数を同じにするため。In the present invention, the number of turns is made the same as described above.
巻線は同時にフェライトコア１１に巻回でき、したかっ
て−次巻線と二次巻線との巻線数が異なっていた従来の
バランに比べて１作業工程数が減少するとともに、構成
が簡単なバランとなって電気的特性が安定したばらつき
の少ない位相同期発振器が構成できる。なお、バラン２
の巻線１２に使用する線材は単線に限らず複数、撚線あ
るいは独立したものであってもよい、さらに、基準信号
増幅用アンプの出力インピーダンス（Ｚｏ）とサンプリ
ング位相検波器の入力インピーダンス（Ｚｉ）の関係を
、（Ｚｏ） ”＝ （Ｚｉ）とすれば高い位相検波感度
を得られて安定した位相同期発振回路が構成できること
はいうまでもない。The windings can be wound around the ferrite core 11 at the same time, thus reducing the number of work steps and simplifying the configuration compared to conventional baluns in which the number of windings is different between the secondary winding and the secondary winding. As a result, a phase-locked oscillator with stable electrical characteristics and less variation can be constructed. In addition, balun 2
The wire used for the winding 12 is not limited to a single wire, but may be a plurality of wires, twisted wires, or independent wires.Furthermore, the output impedance (Zo) of the reference signal amplification amplifier and the input impedance (Zi It goes without saying that by setting the relationship (Zo) ''= (Zi), high phase detection sensitivity can be obtained and a stable phase synchronized oscillation circuit can be constructed.
（発明の効果）
以上、説明したように本発明は、バランの一次側と二次
側の巻線数を同一にすることにより、同時に一次側およ
び二次側の巻線が行え、工程数の減少効果に加え電気的
特性がよくなるから、これを構成要素とする位相同期発
振器は電気的特性にばらつきがなく、量産性がよくなる
効果が得られる。(Effects of the Invention) As explained above, the present invention makes it possible to wind the primary and secondary sides at the same time by making the number of windings on the primary and secondary sides of the balun the same, thereby reducing the number of steps. In addition to the reduction effect, the electrical characteristics are improved, so a phase synchronized oscillator using this as a component has no variation in electrical characteristics and can be mass-produced.
第１図は本発明の一実施例の構成を示すブロック図、第
２図はその要部のバランを示す斜視図。
第３図は従来の位相同期発振器を示すブロック図である
。
１ ・・・基準信号増幅用アンプ、 ２・・・バラン、
３ ・・・インパルス発生回路。
４ ・・・位相検波回路、 ５・・・（基準信号の）入
力端子、 ６ ・・・（位相比較信号の）入力端子、
７・・・（位相誤差信号の）出力端子、 ８・・・サン
プリング位相検波器、９ ・・・ループフィルタ、１０
・・・電圧制御発振器、１１・・・ フェライトコア、
１ｚ・・・巻線。
特許出願人 松下電器産業株式会社
寒くFIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a perspective view showing the main part of the balun. FIG. 3 is a block diagram showing a conventional phase-locked oscillator. 1...Amplifier for reference signal amplification, 2...Balun,
3...Impulse generation circuit. 4... Phase detection circuit, 5... (Reference signal) input terminal, 6... (Phase comparison signal) Input terminal,
7... Output terminal (of phase error signal), 8... Sampling phase detector, 9... Loop filter, 10
...voltage controlled oscillator, 11... ferrite core,
1z... Winding wire. Patent applicant: Matsushita Electric Industrial Co., Ltd.
Claims (1)
の位相を基準信号の位相と比較し、その位相誤差信号出
力により前記、電圧制御発振器出力の位相を制御する位
相同期発振器において、サンプリング位相検波器にバラ
ンを介して基準信号を入力させ、そのバランにおけるフ
ェライトコアへの巻線数を同一にしたことを特徴とする
位相同期発振器。The sampling phase detector is used to compare the phase of the voltage controlled oscillator output with the phase of the reference signal, and the sampling phase detector is used to control the phase of the voltage controlled oscillator output using the phase error signal output. A phase synchronized oscillator characterized in that a reference signal is inputted through a balun, and the number of windings around a ferrite core in the balun is the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171871A JPH0222924A (en) | 1988-07-12 | 1988-07-12 | Phase locked loop oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171871A JPH0222924A (en) | 1988-07-12 | 1988-07-12 | Phase locked loop oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222924A true JPH0222924A (en) | 1990-01-25 |
Family
ID=15931338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63171871A Pending JPH0222924A (en) | 1988-07-12 | 1988-07-12 | Phase locked loop oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5144443A (en) * | 1989-04-06 | 1992-09-01 | Victor Company Of Japan, Ltd. | Apparatus for reproducing charge latent image with vibration of electrode to modulate field generated by image thereby electro-optically modulating a reading light |
| US5161007A (en) * | 1990-04-27 | 1992-11-03 | Victor Company Of Japan, Ltd. | Recording head with carrier generation and transport layers adjacent a photo-modulation layer for recording information included in an electro-magnetic radiation-beam applied thereto |
-
1988
- 1988-07-12 JP JP63171871A patent/JPH0222924A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5144443A (en) * | 1989-04-06 | 1992-09-01 | Victor Company Of Japan, Ltd. | Apparatus for reproducing charge latent image with vibration of electrode to modulate field generated by image thereby electro-optically modulating a reading light |
| US5161007A (en) * | 1990-04-27 | 1992-11-03 | Victor Company Of Japan, Ltd. | Recording head with carrier generation and transport layers adjacent a photo-modulation layer for recording information included in an electro-magnetic radiation-beam applied thereto |
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