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Common mode filter

A common-mode filter and filter technology, applied in the direction of inductors, fixed inductors, transformer/inductor components, etc., can solve problems such as signal distortion and sensitivity to external stimuli

Inactive Publication Date: 2018-07-17
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-speed digitizing electronics are sensitive to external stimuli, resulting in frequent signal distortion due to high-frequency noise

Method used

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Embodiment Construction

[0016] Exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.

[0017] figure 1 is a schematic perspective view of a common mode filter 100 according to an exemplary embodiment of the present disclosure, figure 2 is along figure 1 The cross-sectional view taken by the line I-I', image 3 yes figure 2 Schematic enlarged cross-sectional view of part "A".

[0018] will refer to Figure 1 to Figure 3 The structure of the common mode filter 100 according to an exemplary embodiment of the present disclosure is described.

[0019] In the case of the common mode filter according to the present disclosure, in the drawings, the width direction of the common mode filter is defined as the "X" direction, the length direction of the common mode filter is defined as the "Y" direction, and the common mode filter is defined as the "Y" direction. The thickness direction of the mode filter is defined as the "Z" directi...

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Abstract

The invention provides a common mode filter. The common mode filter includes a body including a filter portion and an electrostatic protection portion, first to fourth external electrodes disposed onan external surface of the body, a ground electrode disposed on the external surface of the body, a first coil included in the filter portion and electrically connected to the first and second external electrodes, and a second coil included in the filter portion and electrically connected to the third and fourth external electrodes. The electrostatic protection portion includes discharge electrodes electrically connected to at least one of the first to fourth external electrodes and the ground electrode, a discharge part including conductive particles, a first organic-inorganic composite insulating layer disposed on the discharge electrodes and the discharge part, a magnetic cover layer disposed on the first organic-inorganic composite insulating layer, and a first inorganic insulating layer.

Description

[0001] This application claims the benefit of priority from Korean Patent Application No. 10-2017-0002893 filed in the Korean Intellectual Property Office on Jan. 9, 2017, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The present disclosure relates to a common mode filter. Background technique [0003] With the advancement of various technologies, electronic devices such as mobile phones, home appliances, PCs, PDAs, LCDs, etc. have changed from analog type devices to digital type devices, and tend to have higher processing speed. In line with this, USB 2.0, USB 3.0, and High Definition Multimedia Interface (HDMI) have become popular as high-speed signal transmission interfaces, and have been used in digital devices such as personal computers and digital HD televisions. [0004] Unlike a single-ended transmission system generally used in the art, such a high-speed interface employs a differential signaling system that t...

Claims

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Application Information

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IPC IPC(8): H01F27/30H01F27/36H01F27/32H01F17/00
CPCH01F27/306H01F27/324H01F2017/0093H01F27/36H01F27/363H01F27/32H03H2001/0092H01F17/0013H01F27/292H01F27/33H01L23/60H01F27/29H03H1/00H03H7/427H05F3/04
Inventor 李光职李相汶朴惠宪梁主欢徐正旭
Owner SAMSUNG ELECTRO MECHANICS CO LTD