JPS6017860Y2 - composite coil - Google Patents
composite coilInfo
- Publication number
- JPS6017860Y2 JPS6017860Y2 JP2518078U JP2518078U JPS6017860Y2 JP S6017860 Y2 JPS6017860 Y2 JP S6017860Y2 JP 2518078 U JP2518078 U JP 2518078U JP 2518078 U JP2518078 U JP 2518078U JP S6017860 Y2 JPS6017860 Y2 JP S6017860Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- coupling
- coils
- bobbin
- wound
- 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
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Description
【考案の詳細な説明】
本考案は、たとえば複同調中間周波変成器や低域ろ波器
、帯域ろ波器等の如く、２個ののコイルを組合せた複合
コイルに関るもので、その主な目的は、２個のコイルを
共通のボビンに巻いても、コイル間の結合を適度に調定
できるようにして製品の小型化、コストの低廉化等をは
かることにある。[Detailed description of the invention] The present invention relates to a composite coil that combines two coils, such as a double-tuned intermediate frequency transformer, a low-pass filter, a bandpass filter, etc. The main purpose is to make it possible to appropriately adjust the coupling between the coils even when two coils are wound on a common bobbin, thereby reducing the size and cost of the product.
たとえば、従来の複同調中間周波変成器は、それぞれ別
個のボビンに巻いた２個のコイルを並べて両コイル間を
適度に結合させたものが一般的であるが、小型化やコス
ト低廉化などの目的から、２個のコイルを共通のボビン
に巻くとすれば、コイル間の結合が強過ぎて実用化し難
いという問題がある。For example, conventional double-tuned intermediate frequency transformers generally have two coils wound on separate bobbins lined up and moderately coupled between the two coils. If two coils are wound on a common bobbin for the purpose, there is a problem that the coupling between the coils is too strong and it is difficult to put it into practical use.
また、共通のボビンに複数のコイルを巻いた場合にコイ
ル間の結合を零にできるならば、複数のコイルを一本の
ボビンに集約できるから、コストや小型化の点できわめ
て有利である。Further, if the coupling between the coils can be reduced to zero when a plurality of coils are wound around a common bobbin, the plurality of coils can be integrated into one bobbin, which is extremely advantageous in terms of cost and size reduction.
本考案は、このような従来の問題を改善するため、共通
のボビンに２個のコイルを巻いても、フィル間の結合を
零または適度の値に選定できるよう工夫したものである
。In order to improve these conventional problems, the present invention is devised so that the coupling between the fills can be set to zero or an appropriate value even when two coils are wound on a common bobbin.
以下、本考案を、複同調中間周波変成器に適用した例を
図面について説明する。Hereinafter, an example in which the present invention is applied to a double-tuned intermediate frequency transformer will be described with reference to the drawings.
図面において、ＬｌとＬ２は共通のボビン１に巻かれた
コイル、ＬｃはコイルＬ２に密結合された結合コイルで
、その巻終り端は第１図の如くコイルｈの巻終り端につ
ながっている。In the drawing, Ll and L2 are coils wound on a common bobbin 1, and Lc is a coupled coil closely coupled to coil L2, the end of which is connected to the end of coil h as shown in Figure 1. .
コイルＬ２には同調コンデンサＣ２が並列に接続され、
また別の同調コンデンサＣ□がコイルＬ１の巻始め端と
結合コイルＬ。A tuning capacitor C2 is connected in parallel to the coil L2,
Another tuning capacitor C□ connects the winding start end of coil L1 to coil L.
の巻始め端の間に接続されている。したがって、二つの
コイルＬ１と鳥との相互誘導によるＭ結合と、結合コイ
ルＬ。It is connected between the beginning ends of the winding. Therefore, M coupling due to mutual induction between the two coils L1 and the bird, and the coupled coil L.
によるＬ結合とは互いに打消し合うように逆極性になっ
ている。The polarity is opposite to that of the L bond due to
このようにＭ結合とＬ結合とが互いに逆極性になってい
るため、仮にＭ結合とＬ結合とが同じであればコイルｈ
と鳥との結合は零になり、またＭ結合とＬ結合とが異な
るときは、その差の大きさによって両コイル間の結合度
が決定される。Since the M coupling and the L coupling have opposite polarities, if the M coupling and the L coupling are the same, the coil h
The coupling between the coil and the bird becomes zero, and when the M coupling and the L coupling are different, the degree of coupling between the two coils is determined by the magnitude of the difference.
この故に、相互誘導によるＭ結合と結合コイルにょるＬ
結合の値を適宜に調定することにより、両コイルＬ１と
Ｌ２との結合を零にも、また適度の値にも容易に選定す
ることができる。Therefore, M coupling due to mutual induction and L due to coupling coil
By appropriately adjusting the coupling value, the coupling between the coils L1 and L2 can be easily set to zero or to an appropriate value.
したがって共通のボビン１に巻いた二つのコイルＬ□と
Ｌ２との距離を近付けても、またボビン１の材質が磁性
体であってもコイル間の結合度を零または適度の値にで
きるから、結合を欲しない複数のコイルでも一本のボビ
ンにまとめて小型化できるし、結合を要する場合は結合
度の適度な性能のよいコイルが得られる。Therefore, even if the two coils L□ and L2 wound around a common bobbin 1 are brought close to each other, and even if the material of the bobbin 1 is magnetic, the degree of coupling between the coils can be set to zero or a moderate value. Even multiple coils that do not require coupling can be combined into a single bobbin to reduce the size, and when coupling is required, a coil with good performance and a moderate degree of coupling can be obtained.
第１図は本考案に係る複同調変成器の一例を示す配線図
、第２図はそれをボビンに巻いた状態を示す側面図であ
る。
杭、Ｌ２・・・・・・コイル、
・・・ボビン。
Ｌｃ・・・・・・結合コイル、
１・・・FIG. 1 is a wiring diagram showing an example of a double tuning transformer according to the present invention, and FIG. 2 is a side view showing the state in which it is wound around a bobbin. Pile, L2...Coil, ...Bobbin. Lc...Coupling coil, 1...
Claims (1)
、コイルｈに密結合された結合コイルＬ。 を有腰結合コイルＬｃの巻終り端はコイルＬ１の巻終り
端に始つながり、コイルＬ１の巻始め端と結合コイルＬ
。 の巻始め端の間に同調コンデンサＣ１が接続され、コイ
ルＬ２には別の同調コンデンサＣ２が並列に接続されて
いる複合コイル。[Claims for Utility Model Registration] Two coils "s, J-'2 wound on a common bobbin, and a coupling coil L closely coupled to the coil h. The winding end of the joined coil Lc is The starting end is connected to the winding end of coil L1, and the coupling coil L is connected to the winding start end of coil L1.
. A composite coil in which a tuning capacitor C1 is connected between the winding start ends of the coil L2, and another tuning capacitor C2 is connected in parallel to the coil L2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2518078U JPS6017860Y2 (en) | 1978-02-28 | 1978-02-28 | composite coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2518078U JPS6017860Y2 (en) | 1978-02-28 | 1978-02-28 | composite coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54128152U JPS54128152U (en) | 1979-09-06 |
| JPS6017860Y2 true JPS6017860Y2 (en) | 1985-05-31 |
Family
ID=28865056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2518078U Expired JPS6017860Y2 (en) | 1978-02-28 | 1978-02-28 | composite coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6017860Y2 (en) |
-
1978
- 1978-02-28 JP JP2518078U patent/JPS6017860Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54128152U (en) | 1979-09-06 |
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