CN101989485A - Inductor - Google Patents
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- CN101989485A CN101989485A CN2009101609656A CN200910160965A CN101989485A CN 101989485 A CN101989485 A CN 101989485A CN 2009101609656 A CN2009101609656 A CN 2009101609656A CN 200910160965 A CN200910160965 A CN 200910160965A CN 101989485 A CN101989485 A CN 101989485A
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- 230000004907 flux Effects 0.000 claims abstract description 35
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 239000012467 final product Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002051 biphasic effect Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009702 powder compression Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- 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
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
- H01F38/023—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances
- H01F2038/026—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances non-linear inductive arrangements for converters, e.g. with additional windings
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- Power Engineering (AREA)
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- Coils Of Transformers For General Uses (AREA)
Abstract
The invention aims to provide an inductor which can obtain good output and can realize a small voltage conversion circuit. In order to achieve the purposes, the inductor of the invention is provided with multiple groups of coils, and a magnetic core of the inductor is formed by integrating a plurality of coil arms which are wound by the multiple groups of coils and at least one shared arm of rings which are in magnetic flux with each coil arm.
Description
Technical field
The present invention relates to the inductor that in voltage conversion circuit etc., uses.
Background technology
As will exchange or the boost in voltage of direct current to the voltage conversion circuit of desired size, use as Japan Patent discloses the translation circuit of staggered PFC (the Power Factor Correct power factor correction) mode of 2007-195282 communique putting down in writing.The translation circuit of the staggered PFC mode that the two-phase AC power is used one for example shown in Figure 8.Translation circuit S shown in Figure 8 will be input to two inductor L from the alternating current branch that exchanges power supply E
1And L
2And, by being configured in AC power E and inductor L
1, L
2Between diode, at inductor L
1, L
2In the sense of current that flows be generally constant (in Fig. 8 from left to right direction).In the following description, with inductor L
1, L
2The terminal (among the figure left side) of upstream one side be defined as input, the terminal (right side among the figure) of downstream one side is defined as output.
Inductor L
1, L
2Output branch into two strands respectively.The path of a side after the branch is via the first output O of diode and translation circuit S
1Connect.On the other hand, from inductor L
1, L
2The opposing party's the path of output branch, via MOS transistor M
1, M
2The second output O with translation circuit S
2Connect.In addition, at the first output O
1With the second output O
2Between, be provided with electrolytic capacitor.
MOS transistor M
1, M
2Grid be connected with controller C.Controller C transmits pulse signal to grid off and on, thus, and inductor L
1, L
2Output and the second output O of translation circuit S
2Connection/disconnection off and on.Controller C makes to MOS transistor M
1The phase place of the pulse signal that transmits with to MOS transistor M
2The phase phasic difference of the pulse signal that transmits is supplied with for 180 °.
When the translation circuit S of said structure is connected with AC power E, can be from output O
1, O
2Acquisition is than the voltage V of AC power E
INHigher voltage V
OUTDirect current.
When alternating current is carried out conversion by the translation circuit that uses single inductor, its output, electric current and voltage change with chevron, and ripple is more.Relative therewith, under the situation of the translation circuit of the staggered PFC mode of use,, can obtain the less good electric current of ripple owing to synthesized a plurality of electric currents of the phase deviation of ripple.
Summary of the invention
But, because the translation circuit of existing staggered PFC mode uses a plurality of inductors, the problem that exists circuit to become large-scale.
The present invention finishes in order to address the above problem.That is, the objective of the invention is to, the inductor that can obtain good output and can realize small-sized voltage conversion circuit is provided.
In order to reach above-mentioned purpose, inductor of the present invention has many group coils, and magnetic core forms by a plurality of coil arms that twined by a plurality of coils respectively with each at least one common arm that forms the ring of magnetic flux of each coil arm.
For example, magnetic core has up and down a pair of magnetic core portion, and common arm is arranged between the central authorities of magnetic core portion, and coil arm is arranged between magnetic core portion and in the both sides of common arm., preferably constitute herein, be formed with the structure of the recess of a part that disposes coil in each approaching a pair of side common arm and coil arm.
Also can replace common arm to be arranged between the central authorities of magnetic core portion, coil arm is arranged between magnetic core portion and in the structure of the both sides of common arm, has a pair of magnetic core portion up and down and constitute magnetic core, common arm is arranged between magnetic core portion, and coil arm is arranged between magnetic core portion and the structure between common arm.Perhaps, can also constitute magnetic core and have a pair of up and down polygonal magnetic core portion, coil arm is arranged on the interconnective position, each bight with magnetic core portion, and common arm is configured in the structure between magnetic core portion.
In above-mentioned inductor, preferably constitute any one structure that forms of common arm and coil arm and a pair of up and down magnetic core portion.
In addition, also can constitute also to have to organize ancillary coils more, organize the structure that ancillary coil is wrapped in a plurality of coil arms respectively more.
In addition, preferably be set at the magnetic resistance of common arm littler than the magnetic resistance of coil arm.For example be, be formed with the gap that is used to make the magnetic resistance rising, do not form the structure in gap in common arm at coil arm.In addition, the gap for example is the air gap.
In addition, preferably constitute so that the mode that common arm is clamped by above-mentioned coil arm, common arm and coil arm are configured to the roughly structure of row.
In addition, preferably constitute the structure that the magnetic flux on common arm based on each coil that is wrapped in a plurality of coil arms is set in the mode of cancelling out each other.
The inductor of the present invention of above explanation is used for to cancel out each other in common arm based on the magnetic flux of each coil under the situation of voltage conversion circuit of staggered PFC mode.Therefore, can reduce to connect the size of the magnetic flux of common arm.Therefore, can make the sectional area of sectional area ratio coil arm of common arm fully little.When such inductor is used for the voltage conversion circuit of staggered PFC mode, compare, the volume and the contact area of inductor can be suppressed to realize small-sized voltage conversion circuit for less with the existing structure that uses a plurality of inductors.
Description of drawings
Fig. 1 is the stereogram of the inductor of first execution mode of the present invention.
Fig. 2 is the summary lateral view of the inductor of first execution mode of the present invention.
Fig. 3 is another routine summary lateral view of the inductor of first execution mode of the present invention.
Fig. 4 is the stereogram of the inductor of second execution mode of the present invention.
Fig. 5 is the summary lateral view of the inductor of the 3rd execution mode of the present invention.
Fig. 6 is the stereogram of the inductor of the 4th execution mode of the present invention.
Fig. 7 is the stereogram of the inductor of the 5th execution mode of the present invention.
Fig. 8 is the circuit diagram of an example of the voltage conversion circuit of staggered PFC mode.
Embodiment
Below, use accompanying drawing to explain for embodiments of the present invention.Fig. 1 represents the stereogram of the inductor of first execution mode of the present invention.In addition, Fig. 2 is the summary lateral view of the inductor of present embodiment.As shown in Figure 1, the inductor 1 of present embodiment has magnetic core (core) 10, first coil 21 and second coil 22.
Wherein, as magnetic core 10, can use the powder compression molding of kicker magnets such as iron, ferrite and the compressed-core that forms or with steel plate laminations such as silicon steel and laminated magnetic core that forms etc.In addition, the first magnetic core portion 11 and the second magnetic core portion 12 can be the magnetic core of identical type, perhaps, also can be different types of magnetic core.In addition, also can be different types of magnetic core by the second arm 11c of coil 21 and the 22 the first arm 11b that twine and the 3rd arm 11d and central authorities.
When first coil 21 of the inductor 1 of above structure and second coil, 22 circulating currents, as shown in Figure 2,, form based on the magnetic flux B1 of first coil 21 with based on the magnetic flux B2 of second coil 22 at magnetic core 10.Magnetic flux B1 forms in the first arm 11b and the second arm 11c, and in addition, magnetic flux B2 forms at the 3rd arm 11d and the second arm 11c.That is, the second arm 11c is connected by magnetic flux B1 and B2 both sides.
Herein, because the direction that first coil 21 twines is opposite with the direction that second coil 22 twines, from going between 23 when lead-in wire 21a, 22a pass through electric current, the direction of magnetic flux B1 and magnetic flux B2 becomes opposite each other in the second arm 11c.Therefore, magnetic flux B1 and magnetic flux B2 cancel out each other in the second arm 11c, and the size that connects the magnetic flux of the second arm 11c reduces.Thereby, the sectional area of the second arm 11c be the sectional area that adds up to than the first arm 11b and the 3rd arm 11d fully little size get final product.
As mentioned above, in the present embodiment, make the part (i.e. the second arm 11c) of first coil 21 and second coil, 22 total magnetic cores 10, compare with the structure that second coil 22 is wrapped on the different magnetic cores, can reduce the volume of inductor significantly and area is set with first coil 21.Therefore, be used for staggered pfc circuit, can realize voltage conversion circuit small-sized and that ripple is less by inductor with present embodiment.In addition, in the present embodiment, because two groups of coils of inductor are installed on the arm in the outside of magnetic core, the heat that coil produces can not accumulate in the central portion of magnetic core, can make heat effectively to outside loss.
In addition, the inductor 1 of present embodiment, the length of the second arm 11c of central authorities is longer slightly than the length of the first arm 11b that is configured in its both sides and the 3rd arm 11d.Therefore, when the first magnetic core portion 11 and the second magnetic core portion 12 are combined to form magnetic core 10, between the first arm 11b, the 3rd arm 11d and the second magnetic core portion 12, form air gap G.This air gap G prevents the magnetic saturation at the first arm 11b and the 3rd arm 11d.
In addition, between the second arm 11c of central authorities and the second magnetic core portion 12, do not form the gap.Therefore, from the first arm 11b or the 3rd arm 11d magnetic resistance, fully littler than the magnetic resistance in the path between the first arm 11b and the 3rd arm 11d towards the path of the second arm 11c.Consequently, the major part of the magnetic flux of first coil, 21 generations does not connect the 3rd arm 11d but connects the second arm 11c.Equally, the major part of the magnetic flux of second coil, 22 generations does not connect the first arm 11b but connects the second arm 11c.Thereby, can avoid because of magnetic flux based on a side coil, to the opposing party's coil generation electromagnetic induction, make the problem that in output, produces noise.
Wherein, the inductor 1 of present embodiment as mentioned above, has 2 groups of coils 21,22.But, the invention is not restricted to said structure.For example, as shown in Figure 3, also can be on the basis of first coil 21 and second coil 22, the structure of first ancillary coil 21 ' and second ancillary coil 22 ' is set respectively at the first arm 11b and the 3rd arm 11d respectively.The inductor 1 ' of said structure is used for carrying out the switch of MOS transistor, with the translation circuit of the staggered PFC mode of so-called critical conduction mode action when the size that detects the logical electric current of the coil midstream that is used to boost is zero (zero hands over).Promptly, first ancillary coil 21 ' is connected with the pfc controller of second ancillary coil 22 ' with the control MOS transistor, and pfc controller detects the switch motion of the size of the electric current of circulation in first coil 21 and second coil 22 based on this testing result control MOS transistor.
It is also useful when in addition, this structure is used the translation circuit of staggered PFC mode two systems.That is, according to this structure, can by an inductor form based on the translation circuit of coil 21,22 with based on ancillary coil 21 ', 22 ' translation circuit.
In first execution mode of the present invention of above explanation, as shown in Figure 1, the second arm 11c is roughly prismatic.But, the invention is not restricted to said structure.For example, the inductor 101 of second execution mode of the present invention shown in the stereogram of Fig. 4, as shown in Figure 4, do not dispose the depth direction of the second arm 111c of central authorities of first coil 121 and second coil 122 (promptly with the orientation and the vertical direction of axial both sides of first coil 121 and second coil 122.Among the figure by the bottom right to upper left direction) size of dimension D, roughly the same with the external diameter of first coil 121 and second coil 122.
In addition, the side 115b of the side 115a of the first arm 111b one side of the second arm 111c and the 3rd arm 111d one side becomes the concave surface of the barrel surface shape of extending along the direction of principal axis of coil 121,122.And the part of first coil 121 and second coil 122 is configured in respectively in the recess of the side 115a of the second arm 111c and 115b.
As mentioned above, according to the structure of present embodiment, can suppress Width (the i.e. orientation of first coil 121 and second coil 122 of inductor 101.The lower-left is to upper right direction from figure) size.And then, according to the structure of present embodiment, make the depth direction size of the second arm 111c elongated as far as possible in the scope of the depth direction size that does not increase inductor 101.Therefore,, can realize making the sectional area of the second arm 111c fully big, when guaranteeing the performance of inductor, suppress the contact area of inductor and the inductor of volume according to present embodiment.
Wherein, in this routine inductor 101,, on the other hand,, do not form the air gap in that the second arm 111c of coil 121 and 122 is not set being formed with air gap G by coil 121 and 122 the first arm 111b and the 3rd arm 111d that twine.
More than in Shuo Ming first and second execution modes of the present invention, constitute in 3 arms that form a line of magnetic core, be provided with the structure of coil, the invention is not restricted to said structure at two arms in the outside.Fig. 5 is the summary lateral view of the inductor of the 3rd execution mode of the present invention.Inductor 201 shown in Figure 5, magnetic core 210 has a pair of magnetic core portion and the first arm 211b that forms a line, the second arm 211c, the 3rd arm 211d and the 4th arm 211e up and down between this magnetic core portion, first coil 221 and second coil 222 are wrapped on the inboard second arm 211c and the 3rd arm 211d.In this structure, by the magnetic flux B11 of first coil 221 and 222 generations of second coil and the first arm 211b and the 4th arm 211e that B12 connects the outside.Thereby the first and the 4th arm 211b, the 211e in the outside play a role as the common arm of being used by first coil 221 and second coil, 222 both sides.
As shown in Figure 5, because the direction that first coil 221 and second coil 222 twine rightabout each other, become rightabout, cancel out each other at the first arm 211b and the 4th arm 211e magnetic flux B11 and magnetic flux B12.Therefore, the size of the magnetic flux of perforation the first arm 211b and the 4th arm 211e becomes less.Thereby the sectional area of the first arm 211b and the 4th arm 211e is for getting final product than the abundant little size of the sectional area of the second arm 211c and the 3rd arm 211d.
In addition, in the inductor 201 of present embodiment, be formed with air gap G by coil 221 and the 222 second arm 211c and the 3rd arm 211d that twine, on the other hand, at the first arm 211b that coil 221 and 222 are not set and the 4th arm 211e, do not form the air gap.
In the structure of above explanation, the arm of magnetic core disposes with forming a line, but the invention is not restricted to this structure.Fig. 6 is the stereogram of the inductor of the 4th execution mode of the present invention.Inductor 301 shown in Figure 6, magnetic core 310 tools are made up of the first arm 311b, the second arm 311c and the 3rd arm 311d of three columns of the magnetic core portion of a pair of general triangular that disposes up and down and the position that is configured in each bight that is connected this magnetic core portion, and first coil 321 and second coil 322 are wrapped on the first arm 311b and the second arm 311c.In this structure, the magnetic flux that is generated by first coil 321 and second coil 322 all connects the 3rd arm 311d.
In the inductor 301 of present embodiment, according to based on the magnetic flux of first coil 321 with become rightabout mode in the position of the 3rd arm 311d based on the magnetic flux of second coil 322 and set the direction that coil twines.Thereby at the 3rd arm 311d, both sides' magnetic flux is cancelled out each other, and the size that connects the magnetic flux of the 3rd arm 311d becomes less.Thereby, the sectional area of the 3rd arm 311d, for than the sectional area of the total of the first arm 311b, the second arm 311c fully little size get final product.
In addition, in the inductor 301 of present embodiment,, on the other hand,, do not form the air gap in that the 3rd arm 311d of coil 321 and 322 is not set being formed with air gap G by coil 321 and the 322 the first arm 311b and the second arm 311c that twine.
The above inductor of Shuo Ming first～the 4th execution mode of the present invention is applicable to that shown in Figure 8 making is transfused to the staggered pfc circuit of biphasic or bipolar type of 180 ° of phase phasic differences of pulse of the grid of a plurality of MOS transistor.But inductor of the present invention also can be applicable to the staggered pfc circuit beyond the biphasic or bipolar type.The following inductor of Shuo Ming the 5th execution mode of the present invention is applicable to so that be transfused to the staggered pfc circuit that the phase place of the pulse of the MOS transistor that is separately positioned on 4 groups of coils whenever differs four facies patterns that 90 ° mode sets.
Fig. 7 is the stereogram of the inductor of the 5th execution mode of the present invention.The magnetic core 410 of the inductor 401 of present embodiment is by a pair of roughly dimetric magnetic core portion of configuration up and down; Be configured in the first arm 411b, the second arm 411c, the 3rd arm 411d, the 4th arm 411e of 4 columns of the position in each bight that connects this magnetic core portion; Form with the 5th arm 411f that is configured in rectangular central authorities.The inductor 401 of present embodiment has first coil 421, second coil 422, tertiary coil 423 and the 4th coil 424, and they are wrapped in respectively on the first arm 411b, the second arm 411c, the 3rd arm 411d and the 4th arm 411e.
In first coil 421, second coil 422, tertiary coil 423 and the 4th coil 424 of the inductor 401 of above structure during circulating current,, form respectively magnetic flux by first coil 421～the 4th coil 424 produces at magnetic core 410.Above-mentioned magnetic flux all connects the 5th arm 411f.
The direction that first coil 421 of the inductor 401 of present embodiment～the 4th coil 424 twines is so that the mode of being cancelled out each other by the magnetic flux in the 5th arm 411f of each coil generation is provided with.Therefore, the size that connects the magnetic flux of the 5th arm 411f becomes less.Thereby, the sectional area of the 5th arm 411f, for than the sectional area of the total of the first arm 411b～the 4th arm 411e fully little size get final product.
As mentioned above, in the present embodiment, have the part (that is, being the 5th arm 411f in the present embodiment) of magnetic cores 410 at first coil 421～the 4th coil 424, the structure that is wrapped in different magnetic cores with each coil is compared, and can reduce the volume of inductor significantly and area is set.Therefore, by in staggered pfc circuit, using the inductor 401 of present embodiment, can realize voltage conversion circuit small-sized and that ripple is less.In addition, in the present embodiment,,, can make heat effectively to outside loss so the heat that coil produces can not accumulate in the central portion of magnetic core because 4 groups of coils of inductor are installed on the arm in the outside of magnetic core.
In addition, in the inductor 401 of present embodiment, in the first arm 411b～the 4th arm 411e, be formed with air gap G.This air gap G prevents the magnetic saturation of the first arm 411b～the 4th arm 411e.
In addition, the 5th arm 411f in central authorities does not form the air gap.Therefore, the magnetic resistance in the path between the 5th arm 411f and other arms is fully littler than the magnetic resistance in the path between the first arm 411b～the 4th arm 411f.Consequently, most of the 5th arm 411f of perforation of magnetic flux that generates at first coil 421～the 4th coil 424.Thereby, can avoid magnetic flux based on certain coil to other coil generation electromagnetic induction, in output, produce the problem of noise.
In addition, in the present embodiment, the first arm 411b～the 4th arm 411e is configured in the interconnective position, each bight with rectangular magnetic core portion, but the invention is not restricted to said structure, for example, can also be in the position in the bight that connects other polygonal magnetic core portions such as rhombus, right-angled trapezium, the structure of configuration coil arm.
Claims (12)
1. inductor, it has magnetic core and coil, it is characterized in that:
Have the described coil of many groups,
Described magnetic core forms by a plurality of coil arms that twined respectively by described many group coils with each at least one common arm that forms the ring of magnetic flux of described coil arm.
2. inductor as claimed in claim 1 is characterized in that:
Described magnetic core has a pair of magnetic core portion up and down,
Described common arm is arranged between the central authorities of described magnetic core portion,
Described coil arm is arranged between this magnetic core portion and in the both sides of this common arm.
3. inductor as claimed in claim 2 is characterized in that:
Described common arm, with each approaching a pair of side of described coil arm, be formed with the recess of the part of the described coil of configuration.
4. inductor as claimed in claim 1 is characterized in that:
Described magnetic core has a pair of magnetic core portion up and down,
Described common arm is arranged between described magnetic core portion,
Described coil arm is arranged between this magnetic core portion and between this common arm.
5. inductor as claimed in claim 1 is characterized in that:
Described magnetic core has a pair of up and down polygonal magnetic core portion;
Described coil arm is arranged on the interconnective position, each bight with described magnetic core portion;
Described common arm is configured between described magnetic core portion.
6. as each described inductor in the claim 2～5, it is characterized in that:
Described common arm and described coil arm form with in the described a pair of up and down magnetic core portion any one.
7. inductor as claimed in claim 1 is characterized in that:
Also have many group ancillary coils, described many group ancillary coils are wrapped in respectively on described a plurality of coil arm.
8. inductor as claimed in claim 1 is characterized in that:
The magnetic resistance of the described coil arm of magneto resistive ratio of described common arm is little.
9. inductor as claimed in claim 8 is characterized in that:
Be formed with the gap that is used to make the magnetic resistance rising at described coil arm, do not form the gap in described common arm.
10. inductor as claimed in claim 9 is characterized in that:
Described gap is the air gap.
11. inductor as claimed in claim 1 is characterized in that:
In the mode that described common arm is clamped by described coil arm, described common arm and described coil arm are configured to roughly row.
12., it is characterized in that as each described inductor in claim 1～5 and the claim 7～11:
Magnetic flux based on the described common arm of each coil that is wrapped in described a plurality of coil arms is set in the mode of cancelling out each other.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101609656A CN101989485A (en) | 2009-07-31 | 2009-07-31 | Inductor |
| JP2012521929A JP5784601B2 (en) | 2009-07-31 | 2010-07-19 | Inductor |
| EP10803799.5A EP2461334B8 (en) | 2009-07-31 | 2010-07-19 | Inductor |
| PCT/CN2010/001082 WO2011011966A1 (en) | 2009-07-31 | 2010-07-19 | Inductor |
| KR1020127005324A KR101760382B1 (en) | 2009-07-31 | 2010-07-19 | Inductor |
| IN1755DEN2012 IN2012DN01755A (en) | 2009-07-31 | 2010-07-19 | |
| CN201080008717.0A CN102326216B (en) | 2009-07-31 | 2010-07-19 | Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101609656A CN101989485A (en) | 2009-07-31 | 2009-07-31 | Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101989485A true CN101989485A (en) | 2011-03-23 |
Family
ID=43528720
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101609656A Pending CN101989485A (en) | 2009-07-31 | 2009-07-31 | Inductor |
| CN201080008717.0A Active CN102326216B (en) | 2009-07-31 | 2010-07-19 | Inductor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080008717.0A Active CN102326216B (en) | 2009-07-31 | 2010-07-19 | Inductor |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2461334B8 (en) |
| JP (1) | JP5784601B2 (en) |
| KR (1) | KR101760382B1 (en) |
| CN (2) | CN101989485A (en) |
| IN (1) | IN2012DN01755A (en) |
| WO (1) | WO2011011966A1 (en) |
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| JP6227245B2 (en) * | 2012-12-12 | 2017-11-08 | コーセル株式会社 | Choke coil device |
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| CN102360863A (en) * | 2011-11-08 | 2012-02-22 | 田村（中国）企业管理有限公司 | Magnetic integrated double inductor |
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| CN106057401B (en) * | 2015-04-10 | 2018-04-17 | 台达电子工业股份有限公司 | Magnetic element and its magnetic core |
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| CN107045927A (en) * | 2016-02-05 | 2017-08-15 | 胜美达集团株式会社 | Magnetic parts |
| CN111684552A (en) * | 2018-01-17 | 2020-09-18 | 松下知识产权经营株式会社 | Reactor, core member, and power supply circuit |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20120066010A (en) | 2012-06-21 |
| EP2461334A1 (en) | 2012-06-06 |
| JP2013501346A (en) | 2013-01-10 |
| KR101760382B1 (en) | 2017-07-21 |
| EP2461334B8 (en) | 2014-09-17 |
| CN102326216A (en) | 2012-01-18 |
| IN2012DN01755A (en) | 2015-06-05 |
| EP2461334B1 (en) | 2014-06-18 |
| EP2461334A4 (en) | 2013-01-09 |
| CN102326216B (en) | 2016-03-16 |
| WO2011011966A1 (en) | 2011-02-03 |
| JP5784601B2 (en) | 2015-09-24 |
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