JPS63108664U - - Google Patents

Info

Publication number
JPS63108664U
JPS63108664U JP20285386U JP20285386U JPS63108664U JP S63108664 U JPS63108664 U JP S63108664U JP 20285386 U JP20285386 U JP 20285386U JP 20285386 U JP20285386 U JP 20285386U JP S63108664 U JPS63108664 U JP S63108664U
Authority
JP
Japan
Prior art keywords
noise
printed
circuit
pattern
board
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.)
Granted
Application number
JP20285386U
Other languages
Japanese (ja)
Other versions
JPH0625027Y2 (en
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 filed Critical
Priority to JP1986202853U priority Critical patent/JPH0625027Y2/en
Publication of JPS63108664U publication Critical patent/JPS63108664U/ja
Application granted granted Critical
Publication of JPH0625027Y2 publication Critical patent/JPH0625027Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Noise Elimination (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Structure Of Printed Boards (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Description

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

第１図は本考案に係る高周波雑音防止用プリン
ト板の実施例説明図、第２図は本考案の実施例に
よるフイルタ効果を示す図、第３図はノイズトラ
ツプワイヤを２種類形成した実施例を示す図、第
４図は複数のスルーホールのそれぞれからノイズ
トラツプワイヤを伸長形成し、抑止周波数を選択
可能とした実施例を示す図、第５図は第４図によ
るフイルタ効果を示す図、第６図は車両用ワイヤ
ハーネスに重畳する高周波雑音を防止する従来例
を示す図である。 １０，１００，２００…マイクロコンピユータ
、１２…コネクタ、１４…プリント基板、１６…
導電性のケース、２０…回路配線パターン、２２
，１２２，２２２…ノイズトラツプパターン、２
４，１２４，２２４…スルーホール。 Fig. 1 is an explanatory diagram of an embodiment of the high-frequency noise prevention printed board according to the present invention, Fig. 2 is a diagram showing the filter effect according to the embodiment of the present invention, and Fig. 3 is an embodiment in which two types of noise trap wires are formed. Figure 4 shows an example in which a noise trap wire is extended from each of a plurality of through holes to enable selection of the suppressing frequency. Figure 5 shows the filter effect according to Figure 4. 6 are diagrams showing a conventional example of preventing high frequency noise superimposed on a vehicle wire harness. 10, 100, 200...Microcomputer, 12...Connector, 14...Printed circuit board, 16...
Conductive case, 20...Circuit wiring pattern, 22
, 122, 222...Noise trap pattern, 2
4,124,224...Through hole.

Claims (1)

【実用新案登録請求の範囲】 各種電子部品が実装されるプリント基板の回路
配線パターン近傍に、スルーホール接続部を利用
して一端が回路側端子に接続され他端が開放され
てその長さが λ４＋λ２×ｎ （λはノイズ電流の伝搬波長、ｎ＝０，１，２，
…） である低インピーダンスのノイズトラツプパター
ンを形成したことを特徴とする高周波雑音防止用
プリント板。[Claim for Utility Model Registration] In the vicinity of the circuit wiring pattern of a printed circuit board on which various electronic components are mounted, one end is connected to the circuit side terminal using a through-hole connection part and the other end is open, and the length thereof is λ4+λ2×n (λ is the propagation wavelength of noise current, n=0, 1, 2,
...) A printed board for high frequency noise prevention, characterized by forming a low impedance noise trap pattern.
JP1986202853U 1986-12-27 1986-12-27 Printed board for high frequency noise prevention Expired - Lifetime JPH0625027Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986202853U JPH0625027Y2 (en) 1986-12-27 1986-12-27 Printed board for high frequency noise prevention

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986202853U JPH0625027Y2 (en) 1986-12-27 1986-12-27 Printed board for high frequency noise prevention

Publications (2)

Publication Number Publication Date
JPS63108664U true JPS63108664U (en) 1988-07-13
JPH0625027Y2 JPH0625027Y2 (en) 1994-06-29

Family

ID=31167628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986202853U Expired - Lifetime JPH0625027Y2 (en) 1986-12-27 1986-12-27 Printed board for high frequency noise prevention

Country Status (1)

Country Link
JP (1) JPH0625027Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010123640A (en) * 2008-11-17 2010-06-03 Opnext Japan Inc Printed circuit board and optical transmitting apparatus
JP2011087303A (en) * 2010-10-29 2011-04-28 Fujitsu Semiconductor Ltd Method of adjusting semiconductor device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498658A (en) * 1977-12-22 1979-08-03 Citizen Watch Co Ltd Noise preventive method of electronic wristwatch
JPS63100899U (en) * 1986-12-19 1988-06-30

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498658A (en) * 1977-12-22 1979-08-03 Citizen Watch Co Ltd Noise preventive method of electronic wristwatch
JPS63100899U (en) * 1986-12-19 1988-06-30

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010123640A (en) * 2008-11-17 2010-06-03 Opnext Japan Inc Printed circuit board and optical transmitting apparatus
US8385748B2 (en) 2008-11-17 2013-02-26 Oclaro Japan, Inc. Printed circuit board and optical transmission device
US8660434B2 (en) 2008-11-17 2014-02-25 Oclaro Japan, Inc. Printed circuit board and optical transmission device
JP2011087303A (en) * 2010-10-29 2011-04-28 Fujitsu Semiconductor Ltd Method of adjusting semiconductor device

Also Published As

Publication number Publication date
JPH0625027Y2 (en) 1994-06-29

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