JPH0282007U - - Google Patents
Info
- Publication number
- JPH0282007U JPH0282007U JP16131688U JP16131688U JPH0282007U JP H0282007 U JPH0282007 U JP H0282007U JP 16131688 U JP16131688 U JP 16131688U JP 16131688 U JP16131688 U JP 16131688U JP H0282007 U JPH0282007 U JP H0282007U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- circuit
- circuit diagram
- view
- parallel
- 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
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
- Filters And Equalizers (AREA)
Description
第１図乃至第３図はこの考案に係るフイルタ用
コイルの実施例を示し、第１図はコイルとコンデ
ンサで構成されたローパスフイルタの回路図、第
２図は第１のコイルと第２のコイルの接続を示し
た回路図で、第２図Ａは並列接続の回路図、第２
図Ｂは直列接続の回路図、第２図Ｃは他の実施例
の並列接続の回路図、第２図Ｄは他の実施例の直
接接続の回路図、第３図はプリント基板上に第１
のコイルと第２のコイルを配線した平面図で、第
３図Ａは第２図Ａの回路の配線平面図、第３図Ｂ
は第２図Ｂの回路の配線平面図、第３図Ｃは第２
図Ｃの回路の配線平面図、第３図Ｄは第２図Ｄ回
路の配線平面図である。第４図は従来例を示した
ローパフイルタ回路図である。
主な符号の説明、１〜３：入力端子、４〜６：
フイルタ素子、７，８：出力端子、９：ＧＮＤ端
子、１０：プリント基板の銅箔パターン、ｅ１〜
ｅ５：コイルに発生した外乱ノイズ電圧。
1 to 3 show an embodiment of the filter coil according to this invention. This is a circuit diagram showing the connection of the coils. Figure 2A is a circuit diagram of parallel connection;
Figure B is a circuit diagram for series connection, Figure 2C is a circuit diagram for parallel connection of another embodiment, Figure 2D is a circuit diagram for direct connection of another embodiment, and Figure 3 is a circuit diagram for parallel connection of another embodiment. 1
Fig. 3A is a wiring plan view of the circuit of Fig. 2A, Fig. 3B is a plan view of the wiring of the coil and the second coil.
is a wiring plan view of the circuit in Fig. 2B, and Fig. 3C is a wiring plan view of the circuit in Fig. 2B.
FIG. 3D is a wiring plan view of the circuit in FIG. C, and FIG. 3D is a wiring plan view of the circuit in FIG. 2D. FIG. 4 is a low-pass filter circuit diagram showing a conventional example. Explanation of main symbols, 1 to 3: input terminals, 4 to 6:
Filter element, 7, 8: Output terminal, 9: GND terminal, 10: Copper foil pattern of printed circuit board, e 1 ~
e5 : Disturbance noise voltage generated in the coil.
Claims (1)
において、 上記コイルに対し、同等の合成インダクタンス
をもつた直列又は並列に接続した第１のコイルと
第２のコイルとで構成し、コイルの巻き始めを逆
向きにした第１のコイルと第２のコイルを相平行
して配線したことを特徴とするフイルタ用コイル
。[Claims for Utility Model Registration] A filter consisting of a coil and a capacitor, etc., is composed of a first coil and a second coil connected in series or in parallel to the above-mentioned coil and having the same combined inductance. A coil for a filter, characterized in that a first coil and a second coil are wired in parallel with each other in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16131688U JPH0282007U (en) | 1988-12-14 | 1988-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16131688U JPH0282007U (en) | 1988-12-14 | 1988-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0282007U true JPH0282007U (en) | 1990-06-25 |
Family
ID=31444141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16131688U Pending JPH0282007U (en) | 1988-12-14 | 1988-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0282007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005341118A (en) * | 2004-05-26 | 2005-12-08 | Hitachi Communication Technologies Ltd | Filter circuit, logic IC, multi-chip module, filter-mounted connector, transmission device and transmission system |
-
1988
- 1988-12-14 JP JP16131688U patent/JPH0282007U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005341118A (en) * | 2004-05-26 | 2005-12-08 | Hitachi Communication Technologies Ltd | Filter circuit, logic IC, multi-chip module, filter-mounted connector, transmission device and transmission system |
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