WO2018161943A1 - Filtre d'inductance en mode commun - Google Patents

Filtre d'inductance en mode commun Download PDF

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Publication number
WO2018161943A1
WO2018161943A1 PCT/CN2018/078472 CN2018078472W WO2018161943A1 WO 2018161943 A1 WO2018161943 A1 WO 2018161943A1 CN 2018078472 W CN2018078472 W CN 2018078472W WO 2018161943 A1 WO2018161943 A1 WO 2018161943A1
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WO
WIPO (PCT)
Prior art keywords
electrode
coil
sub
electrically connected
core cylinder
Prior art date
Application number
PCT/CN2018/078472
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English (en)
Chinese (zh)
Inventor
陈保华
Original Assignee
向睿实业有限公司
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Filing date
Publication date
Application filed by 向睿实业有限公司 filed Critical 向睿实业有限公司
Publication of WO2018161943A1 publication Critical patent/WO2018161943A1/fr

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0138—Electrical filters or coupling circuits
    • 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
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F27/2828—Construction of conductive connections, of leads
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support

Definitions

  • the present invention relates to the field of inductor technology, and in particular to a common mode inductor filter.
  • an inductor as shown in FIG. 1 , includes a magnetic core cylinder 10 and a first coil 11 fixed on the magnetic core cylinder 10; a magnetic pole 10 is provided with a first electrode 101 at one end thereof. The other end is provided with a second electrode 102; one end of the first coil 11 is electrically connected to the first electrode 101, and the other end is electrically connected to the second electrode 102, thereby forming a normal inductor.
  • a common common mode filter an electronic filter mounted between an electronic device and its power source, which is used to reduce electromagnetic interference and electromagnetic interference signals transmitted between the device and the power source.
  • the electromagnetic filter used is a low pass filter, usually composed of a capacitor and an inductor. Therefore, an inductor of a common mode filter, as shown in FIG. 2, includes a magnetic core cylinder 20 and parallel adjacent windings of the first coil 21 and the second coil 22 fixed to the magnetic core cylinder 20.
  • the first core 201 and the second electrode 202 are sequentially disposed at one end of the magnetic core cylinder 10, and the third electrode 203 and the fourth electrode 204 are sequentially disposed at the other end; the first coil 21 is electrically connected to the first electrode 101 at one end.
  • the other end is electrically connected to the fourth electrode 204; the second end of the second coil 22 is electrically connected to the second electrode 202, and the other end is electrically connected to the third electrode 203, thereby forming an inductor of a normal mode common mode filter.
  • the present invention proposes a common mode inductive filter that facilitates the passage of low frequency ambient signals in the circuit.
  • the present invention provides a common mode inductive filter including a main body, the main body including a first magnetic core cylinder and a coil one and a coil two wound around the first magnetic core cylinder;
  • One end of the first magnetic core cylinder is provided with an electrode one, an electrode two, an electrode three, an electrode four and an electrode five, and the other end is sequentially provided with an electrode six, an electrode seven, an electrode eight, an electrode nine and an electrode ten;
  • the coil 1 includes a sub-coil 1, a sub-coil 2, a sub-coil 3 and a sub-coil 4;
  • the coil 2 includes a sub-coil 5, a sub-coil 6, a sub-coil 7 and a sub-coil 8;
  • the two ends of the sub-coil are respectively electrically connected to the electrode one and the electrode seven; the two ends of the sub-coil are electrically connected to the electrode seven and the electrode two respectively; the three ends of the sub-coil are electrically connected to the electrode two And the electrode six; the four ends of the sub-coil are electrically connected to the electrode six and the electrode three respectively;
  • the two ends of the sub-coil are respectively electrically connected to the electrode eight and the electrode four; the two ends of the sub-coil are electrically connected to the electrode four and the electrode nine respectively; the two ends of the sub-coil are electrically connected to the electrode respectively And the electrode five; the two ends of the sub-coil are electrically connected to the electrode five and the electrode ten, respectively.
  • the common mode inductor filter further includes a choke coil electrically connected to the main body, the choke coil includes a second core cylinder and a winding around the second core cylinder Coil three, coil four and coil five;
  • the second magnetic core cylinder is provided with an electrode X1, an electrode X2 and an electrode X3, and the other end is provided with an electrode Y1, an electrode Y2 and an electrode Y3;
  • the two ends of the coil are electrically connected to the electrode X1 and the electrode Y3 respectively; the two ends of the coil are electrically connected to the electrode X2 and the electrode Y2 respectively; the two ends of the coil are electrically connected to the electrode X3 and the electrode Y1 respectively .
  • the electrode X1 is electrically connected to the electrode ten; the electrode X2 is electrically connected to the electrode IX; and the electrode X3 is electrically connected to the electrode VIII.
  • sub-coil 1, the sub-coil 2, the sub-coil 3 and the sub-coil 4 are connected in series.
  • sub-coil 5 the sub-coil 6, the sub-coil 7 and the sub-coil 8 are connected in series.
  • any one or two or more of the sub-coil one, the sub-coil two, the sub-coil three and the sub-coil four are horizontally adjacently wound on the first magnetic core cylinder.
  • any one or two or more of the sub-coil 5, the sub-coil 6, the sub-coil 7 and the sub-coil 8 are horizontally adjacently wound on the first magnetic core cylinder.
  • sub-coil one, the sub-coil two, the sub-coil three, the sub-coil four, the sub-coil five, the sub-coil six, the sub-coil seven or the sub-coil eight Composed of multiple wires;
  • each of the wires is electrically connected to the electrode 1, the electrode 2, the electrode 3, the electrode 4 or the electrode 5, and the other end is electrically connected to the electrode 6, the electrode 7, the electrode 8, the electrode 9 or the electrode 10.
  • the electrode one and the electrode ten are symmetrically parallel with respect to the first magnetic core cylinder; the electrode two and the electrode nine are symmetrically parallel with respect to the first magnetic core cylinder;
  • the electrode VIII is symmetrically parallel with respect to the first magnetic core cylinder; the electrode 4 and the electrode VII are symmetrically parallel with respect to the first magnetic core cylinder; and the electrode 5 is opposite to the electrode 6-1
  • a magnetic core cylinder is symmetrically parallel.
  • the arrangement of the plurality of electrodes at both ends of the magnetic core cylinder can increase the number of windings, so that the power of the single inductor increases, and when the common mode inductor filter is connected to a circuit, the inductor An increase in power can increase the amplitude of the signal in the circuit, thereby facilitating the passage of low frequency ambient signals in the circuit.
  • FIG. 1 is a schematic structural view of a conventional inductor
  • FIG. 3 is a schematic structural diagram of a common mode inductor filter according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing the electrical connection relationship of the electrodes in the common mode inductor filter shown in FIG.
  • 1000-common mode inductive filter 100-body; 10, 20, 30, 70-magnetic core cylinder; 200-choke coil; 11, 21-first coil; 22-second coil; 101, 201- An electrode; 102, 202-second electrode; 203-third electrode; 204-fourth electrode; 41-coil one; 411-sub-coil; 412 sub-coil two; 413-sub-coil three; 414-sub-coil four; 42-coil two; 425-sub-coil five; 426-sub-coil six; 427-sub-coil seven; 428-sub-coil eight; 51-electrode one; 52-electrode two; 53-electrode three; 54-electrode four; - electrode five; 56-electrode six; 57-electrode seven; 58-electrode eight; 59-electrode nine; 60-electrode ten; 83-coil three; 84-coil four; 85-coil five;
  • FIG. 3 is a schematic structural diagram of a common mode inductor filter according to an embodiment of the present invention.
  • the common mode inductor filter 1000 of the embodiment of the present invention has the effect of a common mode filter and/or an inductor, including the body 100.
  • the main body 100 includes a magnetic core cylinder 30 and a coil 41 and a coil 42 wound around the magnetic core cylinder 30.
  • a plurality of electrodes are respectively disposed at two ends of the magnetic core cylinder 30, and a portion between the two ends of the magnetic core cylinder 30 is a winding portion, and the coil is wound around the portion.
  • one end of the magnetic core cylinder 30 is sequentially provided with an electrode 51, an electrode two 52, an electrode three 53, an electrode four 54 and an electrode five 55, and the other end is provided with an electrode six 56, an electrode seven 57, and an electrode.
  • the electrode one 51, the electrode two 52, the electrode three 53, the electrode four 54 and the electrode five 55 are not necessarily arranged in the order of the end of the magnetic core cylinder 30, but are arranged in order to be a better embodiment;
  • Ground, electrode six 56, electrode seven 57, electrode eight 58, electrode nine 59 and electrode ten 60 are not necessarily arranged in the order of the end of the magnetic core cylinder 30, but are arranged in a preferred embodiment.
  • the electrode one 51 and the electrode ten 60 are symmetrically parallel with respect to the magnetic core cylinder 30; the electrode two 52 and the electrode nine 59 are symmetric with respect to the magnetic core cylinder 30. Parallel; the electrode three 53 and the electrode eight 58 are symmetrically parallel with respect to the magnetic core cylinder 30; the electrode four 54 and the electrode seven 57 are symmetrically parallel with respect to the magnetic core cylinder 30; The electrode 65 is symmetrically parallel with respect to the magnetic core cylinder 30.
  • the electrode one 51, the electrode two 52, the electrode three 53, the electrode four 54, the electrode five 55, the electrode six 56, the electrode seven 57, the electrode eight 58, the electrode nine 59 and the electrode ten 60 It is rectangular and the two electrodes of symmetric parallel are matched in size.
  • each electrode can be selected according to other shapes and sizes, and is not limited herein.
  • the coil one 41 includes a sub-coil one 411, a sub-coil two 412, a sub-coil three 413, and a sub-coil four 414.
  • the coil two 42 includes a sub-coil five 425 and a sub-coil six 426.
  • the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427, and the sub-coil eight 428 are all A single wire consists of.
  • the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427 or the sub-coil eight 428 are composed of multiple Wire composition.
  • the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427 and the sub-coil eight 428 may each be composed of a plurality of wires. .
  • each of the wires is electrically connected to the electrode one 51, the electrode two 52, the electrode three 53, the electrode four 54 or the electrode five 55, and the other end is electrically connected to the electrode six 56, the electrode seven 57, the electrode eight 58 , electrode nine 59 and electrode ten.
  • the two ends of the sub-coil one 411 are electrically connected to the electrode one 51 and the electrode seven 57, respectively.
  • the two ends of the sub-coil two 412 are electrically connected to the electrode VII 57 and the electrode 252, respectively, and the two ends of the sub-coil 413 are electrically connected to the electrode 252 and the electrode 256 respectively; They are electrically connected to the electrode six 56 and the electrode three 53, respectively.
  • the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, and the sub-coil four 414 are sequentially connected in series.
  • the coil one 41 is a continuous coil, which is divided into sub-coil one 411, sub-coil two 412, sub-coil three 413 and sub-coil according to the electrical connection relationship with each electrode for convenience of description.
  • the winding device can take the line from the electrode one 51, the line at the electrode seven 57; the line from the electrode seven 57, the line at the electrode two 52; the line from the electrode two 52, the line at the electrode six 56; From the electrode six 56 line, the electrode three 53 line.
  • the two ends of the sub-coils 425 are respectively electrically connected to the electrode eight 58 and the electrode four 54; the two ends of the sub-coil six 426 are electrically connected to the electrode four 54 and the electrode nine 59 respectively;
  • the two ends of the 427 are respectively electrically connected to the electrode 590 and the electrode 550.
  • the two ends of the sub-coil 428 are electrically connected to the electrode 55 and the electrode 610, respectively.
  • the sub-coil 425, the sub-coil 426, the sub-coil 427, and the sub-coil 428 are sequentially connected in series.
  • the coil two 42 is a continuous coil, which is further divided into sub-coils 425, sub-coils 426, sub-coils 427 and sub-coils according to the electrical connection relationship with the electrodes for convenience of description.
  • sub-coil 425, sub-coil 426, sub-coil 427, and sub-coil 428 are connected in series.
  • the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427, and the sub-coil eight 428 are
  • the core cylinder 30 is coated layer by layer.
  • sub-coil one 411, the sub-coil two 412, the sub-coil three 413 and the sub-coil four 414 are covered layer by layer from the inside to the outside or from the outside to the inside; the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427 and the sub-coil Eight 428 is covered layer by layer from the inside to the outside or from the outside to the inside.
  • the sub-coil one 411 is uniformly wound around the winding portion of the magnetic core cylinder 30 to form a first layer of an inductor or a common mode filter. It can be understood that when the sub-coil 411 is composed of a single wire, the layer after the sub-coil 411 is wound is an inductor; when the sub-coil 411 is composed of a plurality of wires, the layer after the sub-coil 411 is wound It is a common mode filter.
  • the sub-coil 2 412 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 411 to form a second layer of an inductor or a common mode filter.
  • the sub-coils three 413 are uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil two 412 to form a third-layer inductor or common mode filter.
  • the sub-coil four 414 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil three 413 to form a fourth-layer inductor or common mode filter.
  • the sub-coils 425 are uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 414 to form a fifth-layer inductor or common mode filter.
  • the sub-coil 426 is evenly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 425 to form a sixth-layer inductor or common mode filter.
  • the sub-coil 7427 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 426 to form a seventh-layer inductor or common mode filter.
  • the sub-coil 428 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 427 to form an eighth-layer inductor or common mode filter.
  • any two or more of the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, and the sub-coil four 414 are horizontally adjacently wound around the magnetic core cylinder 30.
  • Any two or more of the sub-coil 425, the sub-coil 426, the sub-coil 427, and the sub-coil 428 are horizontally adjacently wound around the core cylinder 30.
  • the common mode inductor filter 1000 provided by the present invention further includes a choke coil 200 electrically connected to the main body 100.
  • the choke coil 200 includes a core cylinder 70 and a coil three 83, a coil four 84 and a coil five 85 wound around the core cylinder 70.
  • One end of the magnetic core cylinder 70 is provided with an electrode X1, an electrode X2 and an electrode X3, and the other end is provided with an electrode Y1, an electrode Y2 and an electrode Y3.
  • the electrode X1 is electrically connected to the electrode XX; the electrode X2 is electrically connected to the electrode IX 59; the electrode X3 is electrically connected to the electrode VIII, thereby turbulent
  • the coil 200 is electrically connected to the main body 100.
  • the choke coil 200 is inductively coupled to the body 100.
  • the two ends of the coil three 83 are electrically connected to the electrode X1 and the electrode Y3, respectively; the two ends of the coil four 84 are electrically connected to the electrode X2 and the electrode Y2, respectively; The terminals are electrically connected to the electrode X3 and the electrode Y1, respectively.
  • the coil three 83, the coil four 84, and the coil five 85 are each composed of a single wire.
  • coil three 83, coil four 84 or coil five 85 are comprised of a plurality of wires.
  • coil three 83, coil four 84, and coil five 85 may each be composed of a plurality of wires.
  • one end of each of the wires is electrically connected to the electrode X1, the electrode X2 or the electrode X3, and the other end is electrically connected to the electrode Y1, the electrode Y2 or the electrode Y3.
  • the coil three 83, the coil four 84, and the coil five 85 are coated layer by layer from the inside to the outside of the core cylinder 30.
  • the coil three 83 is uniformly wound around the winding portion of the magnetic core cylinder 70 to form a first layer of an inductor or a common mode filter. It can be understood that when the coil three 83 is composed of a single wire, the layer after winding the coil 83 is an inductor; when the coil three 83 is composed of a plurality of wires, the layer after the coil three 83 is wound is a common mode filter.
  • the layer after winding the coil 83 is an inductor; when the coil three 83 is composed of a plurality of wires, the layer after the coil three 83 is wound is a common mode filter.
  • Device when the coil three 83 is composed of a single wire, the layer after winding the coil 83 is an inductor; when the coil three 83 is composed of a plurality of wires, the layer after the coil three 83 is wound
  • the coils 84 are evenly wound around the winding portion of the core cylinder 70 and wrapped around the periphery of the coils 83 to form a second layer of inductors or common mode filters.
  • the coil 5 85 is evenly wound around the winding portion of the core cylinder 70 and wrapped around the periphery of the coil 84 to form a third layer of inductor or common mode filter.
  • the arrangement of the plurality of electrodes at both ends of the magnetic core cylinder can increase the number of windings, so that the power of the single inductor increases, and when the common mode inductor filter is connected to a circuit, the inductor An increase in power can increase the amplitude of the signal in the circuit, thereby facilitating the passage of low frequency ambient signals in the circuit.
  • the disclosed apparatus can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some communication interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described for the separate components may or may not be physically separate, and the components displayed for the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

L'invention concerne un filtre d'inductance en mode commun, comprenant un premier cylindre à noyau magnétique et une première bobine et une seconde bobine enroulées autour du premier cylindre à noyau magnétique. Une extrémité du premier cylindre à noyau magnétique est pourvue de manière séquentielle d'une première, d'une deuxième, d'une troisième, d'une quatrième, et d'une cinquième électrode, et l'autre extrémité de celui-ci est pourvue de manière séquentielle d'une sixième, d'une septième, d'une huitième, d'une neuvième, et d'une dixième électrode. La première bobine comprend une première, une deuxième, une troisième, et une quatrième sous-bobine ; et la seconde bobine comprend une cinquième, une sixième, une septième, et une huitième sous-bobine. Deux extrémités de la première sous-bobine sont électriquement connectées à la première électrode et à la septième électrode ; deux extrémités de la seconde sous-bobine sont électriquement connectées à la septième électrode et à la deuxième électrode ; deux extrémités de la troisième sous-bobine sont électriquement connectées à la deuxième électrode et à la sixième électrode ; deux extrémités de la quatrième sous-bobine sont électriquement connectées à la sixième électrode et à la troisième électrode ; deux extrémités de la cinquième sous-bobine sont électriquement connectées à la huitième électrode et à la quatrième électrode ; deux extrémités de la sixième sous-bobine sont électriquement connectées à la quatrième électrode et à la neuvième électrode ; deux extrémités de la septième sous-bobine sont électriquement connectées à la neuvième électrode et à la cinquième électrode ; et deux extrémités de la huitième sous-bobine sont électriquement connectées à la cinquième électrode et à la dixième électrode. Le filtre d'inductance en mode commun facilite le passage d'un signal d'environnement basse fréquence.
PCT/CN2018/078472 2017-03-08 2018-03-08 Filtre d'inductance en mode commun WO2018161943A1 (fr)

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CN201710134156.2A CN106712735A (zh) 2017-03-08 2017-03-08 共模电感滤波器
CN201710134156.2 2017-03-08

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Publication number Priority date Publication date Assignee Title
CN106712735A (zh) * 2017-03-08 2017-05-24 向睿实业有限公司 共模电感滤波器
CN108417359B (zh) * 2018-04-28 2024-01-09 东莞顺为半导体有限公司 共模网络滤波器及系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006073958A (ja) * 2004-09-06 2006-03-16 Tdk Corp コイル部品
CN103745801A (zh) * 2014-01-14 2014-04-23 深圳顺络电子股份有限公司 一种脉冲变压器及其制造方法
CN204315360U (zh) * 2014-12-18 2015-05-06 西北台庆科技股份有限公司 电感结构
CN204407125U (zh) * 2015-01-12 2015-06-17 西北台庆科技股份有限公司 电感构造
CN204651136U (zh) * 2015-04-01 2015-09-16 西北台庆科技股份有限公司 具共模滤波或电感效果的线圈结构
CN106712735A (zh) * 2017-03-08 2017-05-24 向睿实业有限公司 共模电感滤波器
CN206542384U (zh) * 2017-03-08 2017-10-03 向睿实业有限公司 共模电感滤波器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3755488B2 (ja) * 2001-08-09 2006-03-15 株式会社村田製作所 巻線型チップコイルおよびその特性調整方法
CN102122563B (zh) * 2010-12-30 2012-12-26 深圳顺络电子股份有限公司 一种绕线电感及其制造方法
CN205487652U (zh) * 2016-01-11 2016-08-17 西北台庆科技股份有限公司 电感结构

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006073958A (ja) * 2004-09-06 2006-03-16 Tdk Corp コイル部品
CN103745801A (zh) * 2014-01-14 2014-04-23 深圳顺络电子股份有限公司 一种脉冲变压器及其制造方法
CN204315360U (zh) * 2014-12-18 2015-05-06 西北台庆科技股份有限公司 电感结构
CN204407125U (zh) * 2015-01-12 2015-06-17 西北台庆科技股份有限公司 电感构造
CN204651136U (zh) * 2015-04-01 2015-09-16 西北台庆科技股份有限公司 具共模滤波或电感效果的线圈结构
CN106712735A (zh) * 2017-03-08 2017-05-24 向睿实业有限公司 共模电感滤波器
CN206542384U (zh) * 2017-03-08 2017-10-03 向睿实业有限公司 共模电感滤波器

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