KR102145921B1 - 인덕터 및 이를 포함하는 emi 필터 - Google Patents

인덕터 및 이를 포함하는 emi 필터 Download PDF

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Publication number
KR102145921B1
KR102145921B1 KR1020170113223A KR20170113223A KR102145921B1 KR 102145921 B1 KR102145921 B1 KR 102145921B1 KR 1020170113223 A KR1020170113223 A KR 1020170113223A KR 20170113223 A KR20170113223 A KR 20170113223A KR 102145921 B1 KR102145921 B1 KR 102145921B1
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KR
South Korea
Prior art keywords
magnetic body
magnetic
inductor
permeability
radial direction
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KR1020170113223A
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English (en)
Korean (ko)
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KR20180080093A (ko
Inventor
이미진
송지연
김유선
임종욱
배석
이상원
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엘지이노텍 주식회사
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Priority to CN201880005850.7A priority Critical patent/CN110168676B/zh
Priority to EP21182959.3A priority patent/EP3937197B1/en
Priority to PCT/KR2018/000041 priority patent/WO2018128352A1/ko
Priority to JP2019532996A priority patent/JP7130645B2/ja
Priority to EP18735827.0A priority patent/EP3567613B1/en
Priority to US16/473,863 priority patent/US11289252B2/en
Publication of KR20180080093A publication Critical patent/KR20180080093A/ko
Priority to KR1020200018968A priority patent/KR102375650B1/ko
Application granted granted Critical
Publication of KR102145921B1 publication Critical patent/KR102145921B1/ko
Priority to US17/673,245 priority patent/US11955262B2/en
Priority to JP2022133463A priority patent/JP7345026B2/ja
Priority to US18/601,098 priority patent/US12482586B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/0006—Printed inductances
    • H01F17/0013—Printed inductances with stacked layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/04—Cores, Yokes, or armatures made from strips or ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/08—Cores, Yokes, or armatures made from powder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F2003/106—Magnetic circuits using combinations of different magnetic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F2017/0093—Common mode choke coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Filters And Equalizers (AREA)
  • Soft Magnetic Materials (AREA)
KR1020170113223A 2017-01-03 2017-09-05 인덕터 및 이를 포함하는 emi 필터 Active KR102145921B1 (ko)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP21182959.3A EP3937197B1 (en) 2017-01-03 2018-01-02 Inductor and emi filter including the same
PCT/KR2018/000041 WO2018128352A1 (ko) 2017-01-03 2018-01-02 인덕터 및 이를 포함하는 emi 필터
JP2019532996A JP7130645B2 (ja) 2017-01-03 2018-01-02 インダクタ及びこれを含むｅｍｉフィルター
EP18735827.0A EP3567613B1 (en) 2017-01-03 2018-01-02 Inductor and emi filter including the same
US16/473,863 US11289252B2 (en) 2017-01-03 2018-01-02 Inductor and EMI filter including the same
CN201880005850.7A CN110168676B (zh) 2017-01-03 2018-01-02 电感器及包括该电感器的emi滤波器
KR1020200018968A KR102375650B1 (ko) 2017-01-03 2020-02-17 인덕터 및 이를 포함하는 emi 필터
US17/673,245 US11955262B2 (en) 2017-01-03 2022-02-16 Inductor and EMI filter including the same
JP2022133463A JP7345026B2 (ja) 2017-01-03 2022-08-24 インダクタ及びこれを含むｅｍｉフィルター
US18/601,098 US12482586B2 (en) 2017-01-03 2024-03-11 Inductor and EMI filter including the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20170000745 2017-01-03
KR1020170000745 2017-01-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020200018968A Division KR102375650B1 (ko) 2017-01-03 2020-02-17 인덕터 및 이를 포함하는 emi 필터

Publications (2)

Publication Number Publication Date
KR20180080093A KR20180080093A (ko) 2018-07-11
KR102145921B1 true KR102145921B1 (ko) 2020-08-28

Family

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KR1020170113223A Active KR102145921B1 (ko) 2017-01-03 2017-09-05 인덕터 및 이를 포함하는 emi 필터
KR1020200018968A Active KR102375650B1 (ko) 2017-01-03 2020-02-17 인덕터 및 이를 포함하는 emi 필터

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US (3) US11289252B2 (enExample)
EP (2) EP3937197B1 (enExample)
JP (2) JP7130645B2 (enExample)
KR (2) KR102145921B1 (enExample)
CN (1) CN110168676B (enExample)

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US10714988B2 (en) * 2017-08-24 2020-07-14 Uchicago Argonne, Llc Permanent magnet design to enable higher magnetic flux density
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GB201816833D0 (en) * 2018-10-16 2018-11-28 Univ College Cork National Univ Of Ireland Cork A vertical magnetic structure for integrated power conversion
JP7592250B2 (ja) * 2018-12-06 2024-12-02 ボード オブ スーパーバイザーズ オブ ルイジアナ ステイト ユニバーシティ アンド アグリカルチュラル アンド メカニカル カレッジ 磁性コアを使用して、高い均一性を備えたパルス電界を適用する方法およびシステム
KR102483815B1 (ko) * 2018-12-26 2023-01-03 주식회사 아모그린텍 하이브리드 인덕터 및 이를 이용한 emi 필터
KR102261729B1 (ko) * 2019-07-19 2021-06-08 엘지이노텍 주식회사 자성 코어
KR102250786B1 (ko) 2019-09-06 2021-05-18 주식회사 케미 Emi 필터
KR102250787B1 (ko) 2019-09-06 2021-05-18 주식회사 케미 Emi 필터
JP6860716B1 (ja) * 2020-02-05 2021-04-21 株式会社リケン ノイズ対策用環状磁性体
CN115699550B (zh) * 2020-06-08 2025-12-02 三菱电机株式会社 噪声滤波器及使用该噪声滤波器的电力转换装置
US11817720B2 (en) * 2021-02-04 2023-11-14 Hevo Inc. Transmitter assembly and methods for making and using the same
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Also Published As

Publication number Publication date
CN110168676B (zh) 2021-07-23
KR20180080093A (ko) 2018-07-11
US20190355500A1 (en) 2019-11-21
EP3567613A1 (en) 2019-11-13
EP3937197B1 (en) 2025-08-20
KR20200019931A (ko) 2020-02-25
US20220199305A1 (en) 2022-06-23
US20240212902A1 (en) 2024-06-27
US11955262B2 (en) 2024-04-09
EP3567613B1 (en) 2023-03-29
EP3937197A1 (en) 2022-01-12
KR102375650B1 (ko) 2022-03-18
JP7130645B2 (ja) 2022-09-05
JP2020503676A (ja) 2020-01-30
EP3567613A4 (en) 2020-08-12
CN110168676A (zh) 2019-08-23
US12482586B2 (en) 2025-11-25
US11289252B2 (en) 2022-03-29
JP2022174101A (ja) 2022-11-22
JP7345026B2 (ja) 2023-09-14

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