JPS5947823A - Method for realizing inductance - Google Patents

Method for realizing inductance

Info

Publication number
JPS5947823A
JPS5947823A JP15751682A JP15751682A JPS5947823A JP S5947823 A JPS5947823 A JP S5947823A JP 15751682 A JP15751682 A JP 15751682A JP 15751682 A JP15751682 A JP 15751682A JP S5947823 A JPS5947823 A JP S5947823A
Authority
JP
Japan
Prior art keywords
inductance
coil
parallel
coils
wave device
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
Application number
JP15751682A
Other languages
Japanese (ja)
Inventor
Hajime Okamura
岡村　一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15751682A priority Critical patent/JPS5947823A/en
Publication of JPS5947823A publication Critical patent/JPS5947823A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1766—Parallel LC in series path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1791—Combined LC in shunt or branch path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters And Equalizers (AREA)

Abstract

PURPOSE:To reduce a loss coefficient of a coil, by connecting plural coils having inductance L2 in parallel to obtain a coil having inductance L1 and to form an equivalent inductance equivalent to the coil of inductance L1. CONSTITUTION:Inductances L2, L3 are connected in parallel to equalize the inductance L1 equivalently in obtaining the inductance L1 at a frequency f1 of a filter. Inductances L5, L6 are connected in parallel to obtain an inductance L4 at a frequency f2 of the filter to make the combined inductance equal to the L4 equivalently. The Q of the coil is improved by connecting the coils in parallel and the transmitting characteristic of the filter circuit is improved easily.

Description

【発明の詳細な説明】 （ａ）　　発明の技術分野 本発明は伝送信号を選択或いは除波する回路に使用され
るコイルのインダクタンスの笑玩方法に関する〇 （ｂ）　　従来技術と問題点 従来コイルとコンデンサを用いて伝送Ｃ４％を選択する
回鮎或いは除波する回路の伝送特性の良否はコンデンサ
とコ・イル仕失係政して依存している。[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a method for controlling the inductance of a coil used in a circuit for selecting or rejecting a transmission signal (b) Prior art and problems Conventional coils and The quality of the transmission characteristics of a circuit that uses a capacitor to select the transmission C4% or a circuit that removes waves depends on the relationship between the capacitor and the coil.

一般にコンデンサの損失係８′２ハコイルの↑ｊ失失敗
数比して極めて小さいので、前記回路の伝送特性の改善
にはコイルの損失係数を小さくするように改善が行われ
ている。コイルの特性をＱで表示すると次式のようにな
る。In general, the loss coefficient of a capacitor is extremely small compared to the number of ↑j failures of a coil, so improvements are made to reduce the loss coefficient of the coil in order to improve the transmission characteristics of the circuit. When the characteristic of the coil is expressed as Q, it becomes as follows.

ここで、ω＝２πｆ、ｆは周波数、ＲＤＣはコイルの巻
線抵抗、Ｒｅは渦流損、Ｒｂに１ヒスデ１１ンス（Ｊｉ
、Ｒａｆは残留損を表わす。Here, ω=2πf, f is the frequency, RDC is the winding resistance of the coil, Re is the eddy current loss, and Rb is 1 hysteresis (Ji
, Raf represents the residual loss.

コイルを同一の周波数で使用する時はコイルのＱは主と
してＲＤＣ即ち巻線抵抗が支配的になり、Ｑを良くする
ためには巻線抵抗の少ない太い線径の電線でコイルを形
成する必侠がある。しか１．コイ゛ルの磁心には大きさ
に限界があるためネ（糾抵抗を減少さすことが出来ない
０また形状を大きくするとコイルの分布容量が九〕加【
２てコイルの見かけ上のインダクタンスが変化する欠点
が生ずる０１行１−形朴の磁心を用いたコイルの巻！’
！　Ｉ／Ｃ対するインダクタンスＬと抵抗ｒとの関保は
インダクタンスＬｒｌ１自夾に比例し、抵抗ｒは直線的
に増加する０コイセを同一周波Ｃ１１同一レベルで使用
するとことが出来る。When coils are used at the same frequency, the coil's Q is mainly dominated by RDC, that is, the winding resistance, and in order to improve the Q, it is necessary to form the coil with a wire with a thick wire diameter that has low winding resistance. There is. Only 1. Since the magnetic core of the coil has a size limit, it is not possible to reduce the resistance.Also, increasing the shape will increase the distributed capacitance of the coil.
2. Winding the coil using a magnetic core of 01 row 1-shape has the disadvantage that the apparent inductance of the coil changes! '
! The relationship between the inductance L and the resistance r for the I/C is proportional to the inductance Lrl1, and the resistance r can be made to increase linearly by using 0 Coise at the same frequency C11 and the same level.

上ＨＬの条件においてインダクタンスＬ１＋　　コイル
の損失ｒｌ　とする艷コイルのＱ　、−’−’−トｌ　
ル。Under the condition of HL above, inductance L1 + coil loss rl, Q of the coil, -'-'-tl
Le.

１ このＱ、のコイルを用いて例えばＦ波器を製作する場合
、ｆ波器の伝送特性からコイルＬＩＫ要求されるＱの１
１自がＱ２でＱ　Ｉ＜　Ｑ、　！のときＱ、＋の特性を
もつコイルし＋では前記の伝送！１百性を満足させるこ
とが出来ない欠点となる。For example, when manufacturing an F-wave device using a coil with this Q, 1 of the Q required for the coil LIK from the transmission characteristics of the F-wave device.
1st team is Q2 and Q I < Q, ! When Q, the coil has the characteristic of +, and the above-mentioned transmission! This is a drawback that makes it impossible to satisfy one hundred characteristics.

一方コイルのインダクタンスは巻数に対し自乗特性で州
別するから、インダクタンスを増加させれば当然Ｑの良
い値が見い出される。この点を考絵、してコイルのＱを
改も・シ、これをＦ波回路に適Ｊ−＋Ｉ　して上ｉヒの
Ｆ波器の伝送！ｒｔ　＋’）、全改善することが要望さ
れろ。On the other hand, since the inductance of the coil varies according to the square characteristic of the number of turns, it is natural to find a good value of Q by increasing the inductance. Considering this point, we changed the Q of the coil and applied it to the F wave circuit. rt+'), a total improvement is desired.

（ｃ）　　発明の目的 本発明は前記の欠点を解決するために、１つのインダク
タンスを複数個のコイルにより実現することによりコイ
ルの損失係数を軽減させた新規のインダクタンスの実現
方法を提供することを目的とする。(c) Purpose of the Invention In order to solve the above-mentioned drawbacks, the present invention aims to provide a novel method for realizing an inductance in which the loss coefficient of the coil is reduced by realizing one inductance using a plurality of coils. purpose.

（ｄ）　　発明の構成 本発明は上６己の目的を達成させるブこめに、１カ定の
インダクタンスを有するコイルを、枡数ヶのコイルを並
列接続して等測的に前ハト；所定のインダクタンスを形
成ｊ−ることにより該インダクタンスの示すコイルの＋
ｊ４失を軽減させることを１１イ徴とする。(d) Structure of the Invention In order to achieve the above object, the present invention connects a coil having a certain inductance in parallel, and connects several squares of coils in parallel to form a coil having a predetermined inductance. By forming an inductance, the + of the coil indicated by the inductance is
The 11th feature is to reduce the loss of J4.

（ｅ）発明の実Ｍ４例 以１、本発明を図面に基ついて６Ｗ明する。化１図はＩ
司−周波ムにおけるインダクタンスとＱの関係４・示す
。同図において、インダクタンスが増加するとＱが増加
する範囲がある。この事より１つのコイルｆＩＪ中のイ
ンダクタンスＬＩをｉくび、そのコイルの↑を失抵抗を
ｒｌとしたときコイルのＱ＋上記の・ｒンダクタンスＬ
、に対し、　２Ｌ１＝Ｌ：なるインダクタンスＬ２を図
中で込び、このインダクタンスし、に対するＱ、はＱＩ
より大きいｆｉσになっている。（（ｈ　＞　Ｑｓ　）
このインダクタンスＬ２を並列接続すると、その時のイ
ンダクタンスｚ２はとなり、これより並列接続したイン
ダクタンスのより高い値になっている。即ちインダクタ
ンスはり、の値で使用されＱのみはＱ、２（＞Ｑｌ）の
値で使用することが出来、Ｑの改善されたインダクタン
スが実現される。(e) Practical Examples of the Invention In the following, the present invention will be explained based on the drawings. Figure 1 is I
4 shows the relationship between inductance and Q at high frequency. In the figure, there is a range in which Q increases as inductance increases. From this, if the inductance LI in one coil fIJ is subtracted by i, and the ↑ of that coil is the lost resistance rl, then the coil's Q + the above ・r inductance L
, 2L1=L: In the figure, we include the inductance L2, and this inductance, Q, is QI
It has a larger fiσ. ((h > Qs)
When this inductance L2 is connected in parallel, the inductance z2 at that time is as follows, which is a higher value than the inductance connected in parallel. That is, the inductance can be used with a value of Q, and only Q can be used with a value of Q,2 (>Ql), and an improved inductance of Q can be realized.

第２図（ａ）は従来例のＦ波器、第２図（ｂ）は本発明
のインダクタンスを用いたＦ波器の回路を示す。FIG. 2(a) shows a circuit of a conventional F-wave device, and FIG. 2(b) shows a circuit of an F-wave device using an inductance of the present invention.

図中Ｆ波器の周波数ｆ、におけるインダクタンスＬ町、
Ｌ、及びＦ波器の周波数ｆｌにおけるインダクタンスＬ
、、　Ｌ、　１−を夫々等価的には夫々のインダクタン
スＬ４とＬｌとに相当するものである〇第３図（ａ）（
ｂｌは第２図（ａ）、　（ｂ）のＦ波器の特性を示すも
ので、同図において点線の特性は第２図（ａ）に示した
従来例のＦ波器の特性を示すもので、実線の特性は第２
図（ｂ）に示した本発明に係るインダクタンスを用いた
ン戸波器の伝送特性・と示ず。In the figure, the inductance L at the frequency f of the F-wave device,
L, and the inductance L at the frequency fl of the F wave device
, L, 1- equivalently correspond to the respective inductances L4 and Ll. 〇Figure 3(a) (
bl indicates the characteristics of the F-wave device shown in Fig. 2(a) and (b), and the dotted line characteristics in the figure indicate the characteristics of the conventional F-wave device shown in Fig. 2(a). The solid line characteristic is the second
The transmission characteristics of the transducer using the inductance according to the present invention shown in FIG.

第３図（ａ）において魚腹で示したｌ侍件は従来例（第
２図（ａ）に示したもの）のＦ波）：：（の特１（トを
示すもので、火線の特性は第２図（ａ）のＦ波器のＬｌ
を１，２゜Ｌ、で合成し、Ｌ　４　ｆ　Ｌ　ａ　＋　Ｌ
　６で合成し大ものである。点しで示した特性は規格値
に達していないＯｖ！、線で示した本発明に係るｉｆＦ
波器特性は規格を満足している〇 また第３図（ｂ）の螢域内の伝送」工ｉ失ｆついても点
線で示した如〈従来例では規格に外していないが、本発
明に係わるインダクタンス；、’４−１１−１い友とさ
く弓Ｊす１ね値を満足していない。In Fig. 3 (a), the l attendant shown by the fish belly is the F wave of the conventional example (shown in Fig. 2 (a)). is Ll of the F-wave device in Fig. 2(a)
are synthesized at 1,2°L, L 4 f L a + L
6 and is a large one. The characteristics indicated by dots do not meet the standard values Ov! , ifF according to the present invention shown by the line
The transmitter characteristics satisfy the standards.Also, as shown by the dotted line in Fig. 3(b), the transmission characteristics within the firefly area are not outside the standards. Inductance; does not satisfy the '4-11-1 Itomo to Sakuyu J value.

以上の原因はコイルの損失（Ｑで表示される）が従来例
では十分に得られないプこめに生ずるのでこの解決来と
し−ＣｆＦ’波器を被和なｉＦＶ成Ｖこり、えて設計し
ている場合もある。The reason for the above is that the loss of the coil (indicated by Q) occurs in a gap that cannot be sufficiently obtained in the conventional example. Sometimes there are.

（ｆ）　　発明の詳細 な説明した如く本発明に、Ｃ，ｈばコイルのＱがコイル
を複数ケ並列接続することにより’−ｈ善できるので、
Ｐ波回路の伝送特性を笠易に改善できる効果がある。(f) As described in detail, in the present invention, C, h and Q of the coils can be improved by connecting multiple coils in parallel.
This has the effect of easily improving the transmission characteristics of the P-wave circuit.

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

ｍ１３１図はインダクタンスとＱの特性を示す図、第２
し１（ａ）、　（ｂ）は従来例と本発明に係わるインダ
クタンスを用いたｒ波器、第３図（ａ）、（ｂ）は従来
例と本発明とのＦ波器の伝送特性を示す。 図中、Ｌ、−４，はコイルのインダクタンス、ｆ、。 ｆ！にＰ波器の極を示す周波数、△ｏＩ＋△０．は帯域
内の伝送損失を示す。 α　　　第１吊 １、　　　　　　Ｌ２ ｆ２　　　子Ｉ ＣしＪ ７、　　　＃、。 矛３ＭFigure m131 is a diagram showing the characteristics of inductance and Q, the second
Figures 1(a) and 1(b) show the transmission characteristics of an R-wave device using an inductance according to the conventional example and the present invention, and Figures 3(a) and (b) show the transmission characteristics of an F-wave device using the conventional example and the present invention. show. In the figure, L,-4, is the inductance of the coil, f,. f! is the frequency that indicates the pole of the P-wave device, △oI+△0. indicates the transmission loss within the band. α 1st hanging 1, L2 f2 child I C and J 7, #. spear 3M

Claims (1)

【特許請求の範囲】[Claims] 伝送信号の選択回路素子あるいは除波回路素子に使用さ
れるコイルのインダクタンスの実杉６方法において、所
望のインダクタンスし、のコイルを得るに際し、インダ
クタンスし、なるコイルを複数ケ並列接続して、前記イ
ンダクタンスし、のコイルと等価となるインダクタンス
を形成することにより該コイルの＋ｉ４失係数を軽減さ
せることを特徴とするインダクタンス実現方法０In Jitsugi 6 method of determining the inductance of a coil used in a transmission signal selection circuit element or a wave rejection circuit element, when obtaining a coil with a desired inductance, a plurality of coils with an inductance are connected in parallel, and the above-mentioned Inductance realization method 0 characterized by reducing the +i4 loss coefficient of the coil by forming an inductance equivalent to that of the coil.
JP15751682A 1982-09-10 1982-09-10 Method for realizing inductance Pending JPS5947823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15751682A JPS5947823A (en) 1982-09-10 1982-09-10 Method for realizing inductance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15751682A JPS5947823A (en) 1982-09-10 1982-09-10 Method for realizing inductance

Publications (1)

Publication Number Publication Date
JPS5947823A true JPS5947823A (en) 1984-03-17

Family

ID=15651379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15751682A Pending JPS5947823A (en) 1982-09-10 1982-09-10 Method for realizing inductance

Country Status (1)

Country Link
JP (1) JPS5947823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2996385A1 (en) * 2012-09-28 2014-04-04 St Microelectronics Sa PASSIVE FILTER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2996385A1 (en) * 2012-09-28 2014-04-04 St Microelectronics Sa PASSIVE FILTER
US9257956B2 (en) 2012-09-28 2016-02-09 Stmicroelectronics Sa Passive filter

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