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Common mode filter

一种共模滤波器、导电图案的技术，应用在电感器、印制电感器、固定电感器等方向，能够解决增大电感、磁通量增大等问题

Inactive Publication Date: 2015-04-29
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, magnetic flux is augmented by common mode noise, which increases inductance and allows noise to be removed

Method used

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Embodiment Construction

[0021] Hereinafter, specific embodiments of the common mode filter according to the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention with reference to the accompanying drawings, the same reference numerals will be used to denote any same or corresponding elements, and redundant description thereof will not be provided.

[0022] Terms such as "first" and "second" may only be used to distinguish one element from other identical or corresponding elements, but the above elements are not limited by the above terms.

[0023] When an element is described as being "coupled" to another element, it does not only mean direct physical contact between these elements, but it should also include the interposition of another element between these elements and the each of which is in contact with the further element.

[0024] figure 1 shows a cross-sectional view of a common mode filter according to an embodim...

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Abstract

A common mode filter is disclosed. The common mode filter in accordance with an embodiment of the present invention includes: a magnetic substrate; a dielectric layer laminated on the magnetic substrate; an external electrode formed on the dielectric layer in such a way that one surface thereof is exposed to an outside; a conductive pattern formed on a surface of the dielectric layer so as to be located on a same plane as the external electrode and having one end thereof connected with the external electrode; an insulator film formed on a surface of the conductive pattern; and a magnetic layer formed on the insulator film so as to cover an upper surface and a lateral surface of the conductive pattern.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2013-0122790 filed with the Korean Intellectual Property Office on October 15, 2013, the entire contents of which are hereby incorporated by reference. technical field [0003] The invention relates to a common mode filter. Background technique [0004] High-speed digital interfaces such as USB require a component that handles noise. One such component that selectively removes common mode noise is a common mode filter. [0005] Common mode noise can occur when impedances cannot be paralleled in a wiring system. The higher the frequency, the more often this common mode noise occurs. Common mode noise can cause various types of noise interference in distant electronic devices, since common mode noise can also be transmitted to, for example, the ground and bounce back through a large loop. [0006] A common-mode filter may allow differential-mode ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/04H01F27/28H01F27/32
CPCH01F17/0006H01F2017/0066H03H7/427H03H2001/0092H01F17/00H01F27/28
Inventor 梁主欢李相汶赵廷珉权宁度沈原彻
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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