CN103714946B - Mixed magnetic circuit magnetic integrated inductor - Google Patents

Mixed magnetic circuit magnetic integrated inductor Download PDF

Info

Publication number
CN103714946B
CN103714946B CN201410025014.9A CN201410025014A CN103714946B CN 103714946 B CN103714946 B CN 103714946B CN 201410025014 A CN201410025014 A CN 201410025014A CN 103714946 B CN103714946 B CN 103714946B
Authority
CN
China
Prior art keywords
magnetic
core
dull
stereotyped
core post
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410025014.9A
Other languages
Chinese (zh)
Other versions
CN103714946A (en
Inventor
邵革良
江明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TAMURA CORP OF CHINA Ltd
Tamura Corp
Original Assignee
TAMURA CORP OF CHINA Ltd
Tamura Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TAMURA CORP OF CHINA Ltd, Tamura Corp filed Critical TAMURA CORP OF CHINA Ltd
Priority to CN201410025014.9A priority Critical patent/CN103714946B/en
Publication of CN103714946A publication Critical patent/CN103714946A/en
Priority to PCT/CN2014/089966 priority patent/WO2015106594A1/en
Application granted granted Critical
Publication of CN103714946B publication Critical patent/CN103714946B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • H01F27/255Magnetic cores made from particles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type
    • H01F17/04Fixed inductances of the signal type with magnetic core
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00Cores, Yokes, or armatures
    • H01F3/10Composite arrangements of magnetic circuits
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets 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
    • H01F1/34Magnets 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
    • H01F1/36Magnets 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 in the form of particles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00Cores, Yokes, or armatures
    • H01F3/10Composite arrangements of magnetic circuits
    • H01F2003/106Magnetic circuits using combinations of different magnetic materials

Abstract

The present invention relates to a kind of mixed magnetic circuit magnetic integrated inductor, comprise magnetic core and two groups of coils.Magnetic core is assembled by following moieties into close: two dull and stereotyped magnetic cores, and two dull and stereotyped magnetic cores are positioned at the both sides up and down of magnetic core; Two the first core post, two the first core post are between two dull and stereotyped magnetic cores and lay respectively at the two ends, left and right of dull and stereotyped magnetic core, and two the first core post are used for coiling two groups of coils; And two the second core post, two the second core post lay respectively at the center position on the both sides up and down of dull and stereotyped magnetic core depression angle.Mixed magnetic circuit magnetic integrated inductor of the present invention can either keep high coupling effect, can promote again the inductance value of coil self coupling to greatest extent.

Description

Mixed magnetic circuit magnetic integrated inductor
Technical field
The present invention relates to inductor, particularly relate to a kind of mixed magnetic circuit magnetic integrated inductor.
Background technology
In prior art, the core material of magnetic integrated inductor adopts that high frequency characteristics is good, loss ratio is lower and the FERRITE CORE that relative permeability is higher usually, and general relative permeability is at more than 2000H/m.But, because the core material at each position of magnetic circuit is the same, magnetic permeability is high, magnetic core is very easily saturated, for preventing the generation of this problem, in the triangle core post of coil windings inner magnet stem stem and winding outside, be provided with multiple fine air gap, prevent magnetic core saturated and the object reducing air gap periphery leakage field to attempt to reach.
Although the phenomenon of the sensed heating of coil that said structure can be avoided flux leakages a large amount of around winding coil to a great extent and cause, complex structure, is unfavorable for volume production; Simultaneously owing to there is the air gap of certain physical size, magnetic core leakage field cannot be solved and the problem of coil eddy current loss brought in essence ground.
In order to effectively solve the problem, control the physical size of air gap and being zero or reaching minimum limit, the magnetic resistance in magnetic circuit can be avoided again to decline and the magnetic core saturation problem brought simultaneously, the present invention proposes the new method of a set of head it off.
Summary of the invention
For solving above-mentioned technical problem of the prior art, the present invention is formed by the material changing magnetic core in magnetic integrated inductor thus is realized different magnetic permeabilitys, provides a kind of brand-new mixed magnetic circuit magnetic integrated inductor.
The invention provides a kind of mixed magnetic circuit magnetic integrated inductor, comprise magnetic core and two groups of coils, magnetic core is assembled by following moieties into close: two dull and stereotyped magnetic cores, and two dull and stereotyped magnetic cores are positioned at the both sides up and down of magnetic core; Two the first core post, two the first core post are between two dull and stereotyped magnetic cores and lay respectively at the two ends, left and right of dull and stereotyped magnetic core, and two the first core post are used for coiling two groups of coils; And two the second core post, two the second core post lay respectively at the center position on the both sides up and down of dull and stereotyped magnetic core depression angle; Wherein, dull and stereotyped magnetic core is made up of the Ferrite Material of the first magnetic permeability, first magnetic permeability is higher than 1000H/m, a whole or part for first core post is made up of the metal crimp powder material of the second magnetic permeability, second magnetic permeability is lower than 500H/m, second core post is made up of the metal crimp powder material of the 3rd magnetic permeability, and the 3rd magnetic permeability is lower than 500H/m and lower than the second magnetic permeability.
According to an aspect of the present invention, the cross section of dull and stereotyped magnetic core is the parallel and symmetrical up and down approximate hexagons in upper and lower both sides, and wherein, two the second core post are between two dull and stereotyped magnetic cores.
According to an aspect of the present invention, the cross section of dull and stereotyped magnetic core is the parallel and symmetrical up and down approximate hexagons in upper and lower both sides, but the center position on the upper and lower both sides of hexagon is respectively equipped with the breach mated completely with the shape of the second core post, wherein, the side of the close coil of two the second core post and the side close fit of breach.
According to an aspect of the present invention, the core of the above-below direction of the first core post is made up of metal crimp powder material, and remainder is made up of Ferrite Material.
According to an aspect of the present invention, the shape of the first core post is cylinder, cylindroid or polygon prism.
According to an aspect of the present invention, the shape of the second core post is triangular prism.
According to an aspect of the present invention, the side of the close coil of two the second core post is that the arc-shaped concave surface that parallels with coil or many ribs are recessed.
According to an aspect of the present invention, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.
According to an aspect of the present invention, the first magnetic permeability is in the scope of 1000 ~ 4000H/m.
According to an aspect of the present invention, the second magnetic permeability and the 3rd magnetic permeability are in the scope of 20 ~ 300H/m.
Should be appreciated that more than the present invention generality describe and the following detailed description be all exemplary and explanat, and be intended to for as claimed in claim the invention provides further explanation.
Accompanying drawing explanation
Comprising accompanying drawing is further understand the present invention for providing, and they are included and form a application's part, and accompanying drawing shows embodiments of the invention, and plays the effect explaining the principle of the invention together with this specification.In accompanying drawing:
Fig. 1 is the exploded perspective figure of the magnetic core in mixed magnetic circuit magnetic integrated inductor according to a first embodiment of the present invention.
Fig. 2 is the exploded perspective figure of the magnetic core in mixed magnetic circuit magnetic integrated inductor according to a second embodiment of the present invention.
Fig. 3 (a) is the exploded perspective figure of the magnetic core in mixed magnetic circuit magnetic integrated inductor according to a third embodiment of the present invention.
Fig. 3 (b) is the end view of the magnetic core in mixed magnetic circuit magnetic integrated inductor according to a third embodiment of the present invention.
Embodiment
With detailed reference to accompanying drawing, embodiments of the invention are described now.
Fig. 1 is the exploded perspective figure of the magnetic core 100 in mixed magnetic circuit magnetic integrated inductor according to a first embodiment of the present invention.As shown in Figure 1, the magnetic core 100 in mixed magnetic circuit magnetic integrated inductor of the present invention is assembled by following moieties into close: two dull and stereotyped magnetic cores, 110, two dull and stereotyped magnetic cores 110 are positioned at the both sides up and down of magnetic core 100; Two the first core post, 120, two the first core post 120 are between two dull and stereotyped magnetic cores 110 and lay respectively at the two ends, left and right of dull and stereotyped magnetic core 110, and two the first core post 120 are for coiling two groups of coils; And two the second core post, 130, two the second core post 130 lay respectively at the center position on the both sides up and down of dull and stereotyped magnetic core 110 depression angle.Dull and stereotyped magnetic core 110 is made up of the Ferrite Material of the first magnetic permeability, and the first magnetic permeability is higher than 1000H/m.First core post 120 is made up of the metal crimp powder material of the second magnetic permeability, and the second magnetic permeability is lower than 500H/m.Second core post 130 is made up of the metal crimp powder material of the 3rd magnetic permeability, and the 3rd magnetic permeability is lower than 500H/m and lower than the second magnetic permeability.The junction that magnetic core each several part is closely assembled does not have air gap or has the thin air gap being less than 1 millimeter.Such design, while two groups of coils of coiling in guarantee two the first core post 120 have ideal coupling effect, can turn avoid the saturated of two the second core post 130 and reduces the air gap leakage field problem around coil to greatest extent.
In one embodiment, the first magnetic permeability is in the scope of 1000 ~ 4000H/m.In one embodiment of the invention, the cross section of dull and stereotyped magnetic core 110 is the parallel and symmetrical up and down approximate hexagons in upper and lower both sides, but the center position on the upper and lower both sides of hexagon is respectively equipped with the breach mated completely with the shape of the second core post 130, wherein, the side of the close coil of two the second core post 130 and the side close fit of breach.Second core post 130 this damascene structures and dull and stereotyped magnetic core 110 are assembled, and substantially increase the bonded area of two magnetic cores, and little the caused ferrite of contact area of dull and stereotyped magnetic core 110 and the second core post 130 can be prevented saturated at contact-making surface place.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20 ~ 300H/m.The coupling coefficient of adjustment two coil can be facilitated and obtain larger self coupling inductance to greatest extent.In one embodiment of the invention, the shape of the first core post 120 is cylinder, cylindroid or polygon prism.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20 ~ 300H/m.In one embodiment of the invention, the shape of the second core post 130 is triangular prism.In one embodiment, the side of the close coil of two the second core post 130 is that the arc-shaped concave surface that parallels with coil or many ribs are recessed.
Magnetic core 100 forms mixed magnetic circuit magnetic integrated inductor of the present invention together with two groups of coils, and wherein, two groups of coils are respectively around in two the first core post 120.Coil is coiled into by copper cash, copper-clad aluminum conductor or aluminum steel.
Fig. 2 is the exploded perspective figure of the magnetic core 200 in mixed magnetic circuit magnetic integrated inductor according to a second embodiment of the present invention.As shown in Figure 2, the magnetic core 200 in mixed magnetic circuit magnetic integrated inductor of the present invention is assembled by following moieties into close: two dull and stereotyped magnetic cores, 210, two dull and stereotyped magnetic cores 210 are positioned at the both sides up and down of magnetic core 200; Two the first core post, 220, two the first core post 220 are between two dull and stereotyped magnetic cores 210 and lay respectively at the two ends, left and right of dull and stereotyped magnetic core 210, and two the first core post 220 are for coiling two groups of coils; And two the second core post, 230, two the second core post 230 lay respectively at the center position on the both sides up and down of dull and stereotyped magnetic core 210 depression angle between two dull and stereotyped magnetic cores 210.Dull and stereotyped magnetic core 210 is made up of the Ferrite Material of the first magnetic permeability, and the first magnetic permeability is higher than 1000H/m.First core post 220 is made up of the metal crimp powder material of the second magnetic permeability, and the second magnetic permeability is lower than 500H/m.Second core post 230 is made up of the metal crimp powder material of the 3rd magnetic permeability, and the 3rd magnetic permeability is lower than 500H/m and lower than the second magnetic permeability.The junction that magnetic core each several part is closely assembled does not have air gap or has the thin air gap being less than 1 millimeter.Such design, while two groups of coils of coiling in guarantee two the first core post 120 have ideal coupling effect, can turn avoid the saturated of two the second core post 130 and reduces the air gap leakage field problem around coil to greatest extent.
In one embodiment, the first magnetic permeability is in the scope of 1000 ~ 4000H/m.
With the shape of the dull and stereotyped magnetic core 110 shown in Fig. 1 and the second core post 130 and assembled relation difference be, the cross section of the dull and stereotyped magnetic core 210 shown in Fig. 2 is the parallel and symmetrical up and down approximate hexagons in upper and lower both sides, and opening is not established in the upper and lower both sides of this hexagon.Two the second core post 230 are between two dull and stereotyped magnetic cores 210.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20 ~ 300H/m.The coupling coefficient of adjustment two coil can be facilitated and obtain larger self coupling inductance to greatest extent.In one embodiment of the invention, the shape of the first core post 220 is cylinder, cylindroid or polygon prism.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20 ~ 300H/m.In one embodiment of the invention, the shape of the second core post 230 is triangular prism.In one embodiment, the side of the close coil of two the second core post 230 is that the arc-shaped concave surface that parallels with coil or many ribs are recessed.
Magnetic core 200 forms mixed magnetic circuit magnetic integrated inductor of the present invention together with two groups of coils, and wherein, two groups of coils are respectively around in two the first core post 220.Coil is coiled into by copper cash, copper-clad aluminum conductor or aluminum steel.
Fig. 3 (a) is the exploded perspective figure of the magnetic core 300 in mixed magnetic circuit magnetic integrated inductor according to a third embodiment of the present invention.Fig. 3 (b) is the end view of the magnetic core 300 in mixed magnetic circuit magnetic integrated inductor according to a third embodiment of the present invention.With reference to Fig. 3 (a) and 3(b) visible, and the first core post 120 difference shown in Fig. 1 is that a part for the first core post 320 is made up of the metal crimp powder material of the second magnetic permeability, and remainder is made up of Ferrite Material.All the other compositions of the magnetic core 300 of Fig. 3 (a) are identical with the magnetic core 100 shown in Fig. 1, do not repeat them here.
In one embodiment, the core 322 of the above-below direction of the first core post 320 is made up of metal crimp powder material, and remainder 324 is made up of Ferrite Material.The remainder 324 of the first core post 320 is owing to being all Ferrite Material with dull and stereotyped magnetic core 310, and therefore also can be considered as is the part of dull and stereotyped magnetic core 310, one-body molded.Shorten by the part that metal crimp powder material in the first core post 320 is formed and be placed on upper and lower center, and adopting the Ferrite Material of same shape at remainder 324.Such structure can regulate, promote the relative permeability of the equivalence of the first core post 320 of coil inside, make the relative permeability of equivalence well beyond the magnetic permeability only using metal crimp powder material to form the first core post to obtain, thus, for the relative permeability of the first core post 320 of coiling considerably beyond the relative permeability of second core post 330 in uncoiled portion.Those of ordinary skill in the art can understand, use the length of the part of different materials can carry out various adjustment according to required magnetic permeability, the part that metal crimp powder material is formed is not limited to the position shown in Fig. 3 (a) He (b) and length, also can be other position or length.The magnetic integrated inductor formed in this way can either keep high coupling effect, can promote again the inductance value of coil self coupling to greatest extent.
Those skilled in the art can be obvious, can carry out various modifications and variations and without departing from the spirit and scope of the present invention to above-mentioned exemplary embodiment of the present invention.Therefore, be intended to that the present invention is covered and drop within the scope of appended claims and equivalent arrangements thereof to amendment of the present invention and modification.

Claims (10)

1. a mixed magnetic circuit magnetic integrated inductor, comprise magnetic core and two groups of coils, described magnetic core is assembled by following moieties into close:
Two dull and stereotyped magnetic cores, two described dull and stereotyped magnetic cores are positioned at the both sides up and down of described magnetic core;
Two the first core post, two described first core post are between two described dull and stereotyped magnetic cores and lay respectively at the two ends, left and right of described dull and stereotyped magnetic core, and two described first core post are used for two groups of coils described in coiling; And
Two the second core post, two described second core post lay respectively at the center position on the both sides up and down of described dull and stereotyped magnetic core depression angle;
Wherein,
Described dull and stereotyped magnetic core is made up of the Ferrite Material of the first magnetic permeability, described first magnetic permeability higher than 1000H/m,
A whole or part for described first core post is made up of the metal crimp powder material of the second magnetic permeability, described second magnetic permeability lower than 500H/m,
Described second core post is made up of the metal crimp powder material of the 3rd magnetic permeability, and described 3rd magnetic permeability is lower than 500H/m and lower than described second magnetic permeability.
2. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, is characterized in that, the cross section of described dull and stereotyped magnetic core is the parallel and symmetrical up and down hexagons in upper and lower both sides, and wherein, two described second core post are between two described dull and stereotyped magnetic cores.
3. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, the cross section of described dull and stereotyped magnetic core is the parallel and symmetrical up and down hexagons in upper and lower both sides, but the center position on the upper and lower both sides of described hexagon is respectively equipped with the breach mated completely with the shape of described second core post, wherein, the side of the close described coil of two described second core post and the side close fit of described breach.
4. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, the core of the above-below direction of described first core post is made up of metal crimp powder material, and remainder is made up of Ferrite Material.
5. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, the shape of described first core post is cylinder, cylindroid or polygon prism.
6. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, the shape of described second core post is triangular prism.
7. mixed magnetic circuit magnetic integrated inductor as claimed in claim 6, is characterized in that, the side of the close described coil of two described second core post is that the arc-shaped concave surface that parallels with described coil or many ribs are recessed.
8. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, described metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.
9. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, described first magnetic permeability is in the scope of 1000 ~ 4000H/m.
10. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, described second magnetic permeability and described 3rd magnetic permeability are in the scope of 20 ~ 300H/m.
CN201410025014.9A 2014-01-20 2014-01-20 Mixed magnetic circuit magnetic integrated inductor Active CN103714946B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201410025014.9A CN103714946B (en) 2014-01-20 2014-01-20 Mixed magnetic circuit magnetic integrated inductor
PCT/CN2014/089966 WO2015106594A1 (en) 2014-01-20 2014-10-31 Hybrid excitation magnetic integrated inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410025014.9A CN103714946B (en) 2014-01-20 2014-01-20 Mixed magnetic circuit magnetic integrated inductor

Publications (2)

Publication Number Publication Date
CN103714946A CN103714946A (en) 2014-04-09
CN103714946B true CN103714946B (en) 2016-02-24

Family

ID=50407832

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410025014.9A Active CN103714946B (en) 2014-01-20 2014-01-20 Mixed magnetic circuit magnetic integrated inductor

Country Status (2)

Country Link
CN (1) CN103714946B (en)
WO (1) WO2015106594A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108735449A (en) * 2017-04-25 2018-11-02 台达电子工业股份有限公司 Magnet assembly, inductance and transformer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103971894B (en) * 2014-05-27 2016-08-31 田村(中国)企业管理有限公司 magnetically coupled inductors and magnetic core thereof
JP2017139397A (en) * 2016-02-05 2017-08-10 スミダコーポレーション株式会社 Magnetic component
CN106205967A (en) * 2016-06-21 2016-12-07 广东电网有限责任公司电力科学研究院 A kind of core construction, saturation type current limiter and saturable reactor
CN110277224B (en) * 2019-05-31 2021-02-23 华为技术有限公司 Power inductance magnetic core and power inductance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1731543A (en) * 2004-08-05 2006-02-08 胜美达集团株式会社 Magnetic element
CN101499364A (en) * 2008-10-20 2009-08-05 天通浙江精电科技有限公司 Magnetic core and integrated electrical inductance
CN103107704A (en) * 2013-02-28 2013-05-15 浙江昱能光伏科技集成有限公司 Integrated transformer suitable for interleaving parallel flyback circuit
CN103258624A (en) * 2013-05-13 2013-08-21 田村(中国)企业管理有限公司 Mixed magnetic circuit inductor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05217761A (en) * 1992-01-31 1993-08-27 Sony Corp Magnetic core with gap and inductance element
US8079134B2 (en) * 2008-08-01 2011-12-20 International Business Machines Corporation Method of enhancing on-chip inductance structure utilizing silicon through via technology
CN101552098A (en) * 2008-12-26 2009-10-07 上海力申科学仪器有限公司 Transformer for improving the precision of output voltage
CN101656139A (en) * 2009-08-21 2010-02-24 成都金之川电子有限公司 Magnetic core of rectangular flat transformer
CN102568752B (en) * 2011-12-27 2014-01-08 华为技术有限公司 Inductive member and electronic device with the inductive member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1731543A (en) * 2004-08-05 2006-02-08 胜美达集团株式会社 Magnetic element
CN101499364A (en) * 2008-10-20 2009-08-05 天通浙江精电科技有限公司 Magnetic core and integrated electrical inductance
CN103107704A (en) * 2013-02-28 2013-05-15 浙江昱能光伏科技集成有限公司 Integrated transformer suitable for interleaving parallel flyback circuit
CN103258624A (en) * 2013-05-13 2013-08-21 田村(中国)企业管理有限公司 Mixed magnetic circuit inductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108735449A (en) * 2017-04-25 2018-11-02 台达电子工业股份有限公司 Magnet assembly, inductance and transformer

Also Published As

Publication number Publication date
WO2015106594A1 (en) 2015-07-23
CN103714946A (en) 2014-04-09

Similar Documents

Publication Publication Date Title
CN103714946B (en) Mixed magnetic circuit magnetic integrated inductor
CN103928218A (en) Magnetic Device With High Saturation Current And Low Core Loss
US9455080B2 (en) Reactor
CN1996515A (en) Magnetic core, and inductor and transformer comprising the same
US11017939B2 (en) Magnetic component assembly with filled gap
US9842682B2 (en) Modular integrated multi-phase, non-coupled winding power inductor and methods of manufacture
JP2012099739A (en) Core segment, annular coil core and annular coil
US10096421B2 (en) Coil device and method for manufacturing the same
KR20160028369A (en) Core and coil device using same
CN104064338B (en) Coupling inductance
US9406430B2 (en) Reactor
US20180350493A1 (en) Distributed gap for magnetic cores
CN104051138A (en) Transformer
CN104157431A (en) Three-phase transformer with built-in high-frequency inductor
JP6060206B2 (en) Annular coil
CN204303508U (en) A kind of novel inductor structure
CN105914017A (en) Transformer for reducing eddy current losses of coil
TWI627642B (en) Variable coupled inductor manufacturing the same
JP2017092071A (en) Inductance element and evaluation method for inductance element
CN205303103U (en) Inductance device with common mode differential mode choke function
US9672974B2 (en) Magnetic component and power transfer device
CN203787246U (en) Novel inductor
CN202473479U (en) Inductance device
CN208271709U (en) A kind of oil-immersed transformer coil assembly preventing deformation
CN203966769U (en) A kind of column magnetic core and circuit board

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant