JP4309376B2 - Dsl用ローパスフィルタ - Google Patents
Dsl用ローパスフィルタ Download PDFInfo
- Publication number
- JP4309376B2 JP4309376B2 JP2005172071A JP2005172071A JP4309376B2 JP 4309376 B2 JP4309376 B2 JP 4309376B2 JP 2005172071 A JP2005172071 A JP 2005172071A JP 2005172071 A JP2005172071 A JP 2005172071A JP 4309376 B2 JP4309376 B2 JP 4309376B2
- Authority
- JP
- Japan
- Prior art keywords
- dsl
- low
- pass filter
- telephone
- inductors
- 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 - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 description 18
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 12
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 12
- 229920006184 cellulose methylcellulose Polymers 0.000 description 12
- 238000012710 chemistry, manufacturing and control Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000005236 sound signal Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011153 ceramic matrix composite Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
- Filters And Equalizers (AREA)
- Telephonic Communication Services (AREA)
Description
CMCと略す)を付加したものがあり、該CMCは、LPF51のインダクタL61,L62,L63、および、L61’,L62’,L63’による、回路アンバランスを抑制して通信の品質を保たせるものであった。
16:ローパスフィルタ LPF
17:ハイパスフィルタ HPF
18:電話機
19:モデム
20:コモンモードチョークコイル CMC
100:電話回線
L11,L11’,L12,L12’,L13,L13’:インダクタ
C11,C12,C13:キャパシタ
LineA,LineB:線路
Claims (1)
- 低周波信号を通過させるインダクタとキャパシタより構成させるローパスフィルタにおいて、インダクタとキャパシタがn段として構成するフィルタ回路の内、少なくとも一対のインダクタは、漏洩インダクタンス値が40μH〜100μHであるコモンモードチョークコイルにより構成されていることを特徴とするDSL用ローパスフィルタ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005172071A JP4309376B2 (ja) | 2005-06-13 | 2005-06-13 | Dsl用ローパスフィルタ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005172071A JP4309376B2 (ja) | 2005-06-13 | 2005-06-13 | Dsl用ローパスフィルタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006352217A JP2006352217A (ja) | 2006-12-28 |
JP4309376B2 true JP4309376B2 (ja) | 2009-08-05 |
Family
ID=37647629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005172071A Expired - Fee Related JP4309376B2 (ja) | 2005-06-13 | 2005-06-13 | Dsl用ローパスフィルタ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4309376B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009159064A (ja) * | 2007-12-25 | 2009-07-16 | Digital Technologies Corp | 通話録音装置 |
JP5796156B2 (ja) * | 2011-01-31 | 2015-10-21 | パナソニックIpマネジメント株式会社 | コモンモードノイズフィルタ |
JP2012227820A (ja) * | 2011-04-21 | 2012-11-15 | Sumitomo Electric Networks Inc | 通信装置およびスプリッタ |
CN105634432B (zh) * | 2016-03-02 | 2019-02-05 | 绵阳普思电子有限公司 | G.fast低通滤波器及电路 |
CN108075627A (zh) * | 2016-11-18 | 2018-05-25 | 佛山市顺德区美的电热电器制造有限公司 | 电磁兼容滤波器及家用电器 |
CN108075637A (zh) * | 2016-11-18 | 2018-05-25 | 佛山市顺德区美的电热电器制造有限公司 | Emc滤波电路、电磁加热家电控制电路和家用电器 |
CN108075628A (zh) * | 2016-11-18 | 2018-05-25 | 佛山市顺德区美的电热电器制造有限公司 | 电磁兼容滤波器及家用电器 |
-
2005
- 2005-06-13 JP JP2005172071A patent/JP4309376B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2006352217A (ja) | 2006-12-28 |
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