JPH03106709U - - Google Patents
Info
- Publication number
- JPH03106709U JPH03106709U JP1551790U JP1551790U JPH03106709U JP H03106709 U JPH03106709 U JP H03106709U JP 1551790 U JP1551790 U JP 1551790U JP 1551790 U JP1551790 U JP 1551790U JP H03106709 U JPH03106709 U JP H03106709U
- Authority
- JP
- Japan
- Prior art keywords
- lead
- notch
- leads
- ferrite
- ferrite plate
- 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
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Regulation Of General Use Transformers (AREA)
- Coils Or Transformers For Communication (AREA)
Description
第１図は、第１の実施例の斜視図、第２図は、
半導体素子のブロツク図、第３図乃至第５図、第
１１図、第１２図、第１４図および第１５図は、
放射ノイズの発生量と周波数との関係図、第６図
は、第２の実施例の斜視図、第７図は、第３の実
施例の斜視図、第８図は、従来例の斜視図、第９
図は、２層基板のプリント配線板の断面図、第１
０図は、従来例の半導体素子のブロツク図、第１
３図は、４層（多層）基板のプリント配線板の断
面図である。
１，４，７……フエライトコア、２，５，８ａ
，８ｂ……切欠き部、３，６，９……貫通孔。
FIG. 1 is a perspective view of the first embodiment, and FIG. 2 is a perspective view of the first embodiment.
The block diagrams of the semiconductor device, FIGS. 3 to 5, FIG. 11, FIG. 12, FIG. 14, and FIG.
A diagram of the relationship between the amount of radiation noise generated and the frequency, FIG. 6 is a perspective view of the second embodiment, FIG. 7 is a perspective view of the third embodiment, and FIG. 8 is a perspective view of the conventional example. , No. 9
The figure is a cross-sectional view of a printed wiring board with a two-layer board.
Figure 0 is a block diagram of a conventional semiconductor device.
FIG. 3 is a cross-sectional view of a four-layer (multilayer) printed wiring board. 1, 4, 7...ferrite core, 2, 5, 8a
, 8b... Notch portion, 3, 6, 9... Through hole.
Claims (1)
を配設したノイズ発生体に設けるものであつて、 フエライト板で形成するとともに、前記アース
リードまたは前記電源リードの何れか一方が対応
する前記フエライト板に切欠き部を設けて、かつ
前記切欠き部に対応するリードを除く残りのリー
ドが対応する前記フエライト板に貫通孔を設けた
ことを特徴とするフエライトコア。 (2) 前記切欠き部は、前記ノイズ発生体のアー
スリードと電源リードとの両方に対応する位置に
設けたことを特徴とする請求項１記載のフエライ
トコア。[Scope of Claim for Utility Model Registration] (1) A noise generating body provided with leads including an earth lead and a power lead, which are formed of a ferrite plate, and which of the earth lead or the power lead A ferrite core characterized in that a notch is provided in the ferrite plate to which one of the leads corresponds, and a through hole is provided in the ferrite plate to which the remaining leads, excluding the lead corresponding to the notch, correspond. (2) The ferrite core according to claim 1, wherein the notch is provided at a position corresponding to both an earth lead and a power lead of the noise generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1551790U JPH03106709U (en) | 1990-02-19 | 1990-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1551790U JPH03106709U (en) | 1990-02-19 | 1990-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03106709U true JPH03106709U (en) | 1991-11-05 |
Family
ID=31518820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1551790U Pending JPH03106709U (en) | 1990-02-19 | 1990-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03106709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012213184A (en) * | 2005-01-19 | 2012-11-01 | Panduit Corp | Communication channel with suppression core |
-
1990
- 1990-02-19 JP JP1551790U patent/JPH03106709U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012213184A (en) * | 2005-01-19 | 2012-11-01 | Panduit Corp | Communication channel with suppression core |
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