Title:
ネットワーク機器および通信モジュール
Document Type and Number:
Japanese Patent JP5333366
Kind Code:
B2
Abstract:
On a circuit board (20) adapted to transmit a signal, a pulse transformer (12A) is provided on a path used for transmitting the signal of the circuit board (20). A shield member (15) is provided on the circuit board (20) for preventing noise, which is generated due to noise current flowing in a noise line pattern (16), from entering the pulse transformer (12A). The shield member (15) covers a surface portion (upper surface (26) and side surface (27)) of at least one pulse transformer that intersects concentric circles (30) whose central axis is axis A extending along the direction in which the noise current flows.
Inventors:
Toshiyuki Kojima
Asano Megumi
Asano Megumi
Application Number:
JP2010154969A
Publication Date:
November 06, 2013
Filing Date:
July 07, 2010
Export Citation:
Assignee:
OMRON Corporation
International Classes:
H01F27/36; H01F19/04; H04B3/50; H04B15/02; H05K9/00
Domestic Patent References:
| JP9116510A | ||||
| JP60169824U | ||||
| JP56078427U | ||||
| JP2000209525A | ||||
| JP2003142868A | ||||
| JP4042722U |
Attorney, Agent or Firm:
Fukami patent office