CN107195448A - Has the resonance transformer of leakage inductance adjustment - Google Patents
Has the resonance transformer of leakage inductance adjustment Download PDFInfo
- Publication number
- CN107195448A CN107195448A CN201710283947.1A CN201710283947A CN107195448A CN 107195448 A CN107195448 A CN 107195448A CN 201710283947 A CN201710283947 A CN 201710283947A CN 107195448 A CN107195448 A CN 107195448A
- Authority
- CN
- China
- Prior art keywords
- primary side
- leakage inductance
- side winding
- magnetic conductive
- conductive disk
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F29/146—Constructional details
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
A kind of resonance transformer for having leakage inductance adjustment, including primary side winding, primary side winding, magnetic conductive disk and group unshakable in one's determination, primary side winding is arranged on the bobbin of primary side winding, magnetic conductive disk is set in secondary wire coil, and primary side winding, primary side winding have the communicate first perforation, the second perforation and through hole respectively with magnetic conductive disk, and group unshakable in one's determination is unshakable in one's determination with two symmetrically arranged first iron cores and second, it is respectively sleeved at the top of primary side winding and primary side winding bottom；Thereby, primary side winding is arranged on primary side winding and set after magnetic conductive disk, makes resonance transformer change the degree of coupling of primary and secondary via foregoing magnetic conductive disk in running, and then changes primary leakage inductance, to meet various resonant frequency demands.
Description
Technical field
The invention relates to a kind of resonance transformer, a kind of adjustable leakage inductance size is particularly related to, and in extremely low leakage
The resonance transformer of the tool leakage inductance adjustment used as anti-magnetic transformer.
Background technology
In the power system of the electronic products such as LCD TV, the high efficiency of LLC frameworks is with easily having made gradually
As trend, the leakage inductance carried using main transformer replaces plug-in resonant inductance, further simplifies LLC frameworks, also gradually
As main flow, integrated form LLC transformer leakage inductances itself transfer to resonant inductance and used, and allow on circuit and minus an Inductive component,
And then power consumption, efficiency thus raising are reduced, and the ZVS characteristics of LLC frameworks can more reduce the loss of switch and reduce noise.
The generation of leakage inductance, is derived from the coefficient of coup in transformer between primary side coil and secondary test coil and is less than
1, transformer portion coil is not had transformer action, the inductance that this part coil is produced is leakage inductance；Resonance transformer
Fundamental formular is the √ (LC) of ω=1/, wherein, ω is that angular frequency=2 the л f, L and C of power supply are the inductance and electricity of LLC resonant slots
Capacity.Resonant frequency f can often have different set because of different application, in order to meet in different resonant frequency f requirement, L and C
Must be adjustable, in order to be exactly found resonance point, in addition it is also necessary to which parameter can be with stepless fine adjustment, but actual situation can not be as
This is realized.So, modern resonant transformer typically uses variable-frequency power sources as power supply, to adjust ω numerical value, but simultaneously can not
Lk adjustment is directly carried out inside resonance transformation, causing the benefit of resonance transformer can not effectively be lifted.
Although there is dealer to improve the construction of resonance transformer, more leakage inductances can be produced, such as TaiWan, China is special
" resonance becomes for profit bulletin the M333646th " improvement of leakage inductance resonance transformer structure ", TaiWan, China patent announcement the M416553rd
Depressor structure " etc., and inventor have announced case before patent on record, No. I556273 " resonance of TaiWan, China patent announcement
Formula high current density transformer ", but the resonance transformer of this class is limited to the limitation such as volume, weight, so, fixed body
Product, size, under coil ratio, such resonance transformer, its leakage inductance is limited to structure, it is impossible to arbitrarily adjustment, it is impossible to meet different
The power system of power is used, furthermore, for the power system for different leakage inductance demands, dealer must be with phase
Required leakage inductance is produced with structure, but often the variable of leakage inductance is limited in scope, it is impossible to design is fully met, is only capable of passing through line
The compromise of road can not effectively lift the efficiency of resonance transformer to arrange in pairs or groups existing transformer.
There is disadvantages mentioned above in view of dust head, inventor is the road for aforesaid drawbacks Improvement, there is the present invention finally
Produce.
The content of the invention
Present invention is primarily aimed at there is provided a kind of resonance transformer of the tool leakage inductance of adjustable leakage inductance size adjustment.
Another secondary objective of the invention is that the resonance change of the tool leakage inductance adjustment of magnetic conductive disk can be substituted there is provided a kind of internal tool
Depressor.
Still a further object of the present invention is that there is provided a kind of tool leakage inductance adjustment used in extremely low leakage as anti-magnetic transformer
Resonance transformer.
To reach above-mentioned purpose and effect, the present invention structure include：One primary side winding, it is interior with a bobbin
Portion has one first perforation；One is arranged on the primary side winding on foregoing bobbin, and its internal perforated with one with first communicates
Second perforation；One is arranged at the magnetic conductive disk in foregoing bobbin, and it has one to be communicated with the foregoing first perforation, the second perforation
Through hole；And, one have two symmetrically arranged one first it is unshakable in one's determination with one second unshakable in one's determination unshakable in one's determination group, foregoing primary side around
Group is arranged on the bobbin of primary side winding, and magnetic conductive disk is inserted in bobbin, and the first iron core is set in foregoing primary side winding
Top, the second iron core is set in foregoing primary side winding bottom, makes resonance transformer be produced in running via foregoing magnetic conductive disk
Required leakage inductance.
According to said structure, wherein there is a side of sidewall portion respectively at the first surface two ends unshakable in one's determination with the second side unshakable in one's determination,
Internal between the wall portion of both sides to have a convex portion, the convex portion is each passed through foregoing first perforation, the second perforation and through hole.
According to said structure, it further comprises two shell fragments, and each shell fragment two ends have a hook part, and foregoing first iron core
With being respectively equipped with a recess at the second opposite side two ends unshakable in one's determination, then the shell fragment buckles into the first iron core and second with hook part respectively
Recess unshakable in one's determination.
According to said structure, the bobbin top perimeter of the wherein primary side winding is equipped with wallboard, and wallboard and bobbin
An accepting groove is formed between top, foregoing magnetic conductive disk is separately positioned in accepting groove with primary side winding；And, the wallboard bottom
Portion is correspondingly provided with the locating notch of majority provided with most locating dowels, then foregoing magnetic conductive disk periphery.
According to said structure, there is a slot wherein in the bobbin of the primary side winding, the slot supplies foregoing magnetic conductive disk
Most locating dowels are provided with being arranged on, and in the slot, then magnetic conductive disk periphery is correspondingly provided with the locating notches of majority..
According to said structure, the bobbin top perimeter of the wherein primary side winding is equipped with wallboard, and wallboard and bobbin
Being formed between top has a slot in an accepting groove, and the bobbin of foregoing primary side winding, then foregoing magnetic conductive disk is set respectively
Put in slot and accepting groove, furthermore, the wallboard bottom and the locating dowel that majority is respectively equipped with slot, then magnetic conductive disk is all
While being correspondingly provided with the locating notch of majority.
According to said structure, the leakage inductance that wherein hole size of the magnetic conductive disk is produced with resonance transformer is inversely proportional, magnetic conductive disk
Thickness be directly proportional to the leakage inductance that resonance transformer is produced, and, the permeability of the magnetic conductive disk is produced with resonance transformer
Leakage inductance is directly proportional.
It is as follows according to each brief description of the drawings to make above-mentioned purpose, effect and the feature of the present invention more specifically to be understood：
Brief description of the drawings
Fig. 1 is the stereogram of the first preferred embodiment of the invention.
Fig. 2 is the three-dimensional exploded view of the first preferred embodiment of the invention.
Fig. 3 is the sectional view of the first preferred embodiment of the invention.
Fig. 4 is the three-dimensional exploded view of the second preferred embodiment of the invention.
Fig. 5 is the sectional view of the second preferred embodiment of the invention.
Fig. 6 is the leakage inductance of the first preferred embodiment of the invention and the datagram of magnetic conductive disk.
Embodiment
Refer to shown in Fig. 1~Fig. 3, it is known that structure of the invention mainly includes：One 2, one primary side winding 3 of group unshakable in one's determination,
One primary side winding 4, a magnetic conductive disk 5 and two shell fragments 6, wherein：
The primary side winding 3 has a bobbin 31, and inside has one first perforation 32, the top perimeter ring of bobbin 31
Provided with a wallboard 33, accepting groove 36 is formed between wallboard 33 and bobbin top 31, in the bottom of wallboard 33 provided with most positioning
Secondary side coil 35 is arranged with post 37, and bobbin 31；
The inside of primary side winding 4 has one second perforation 41, and the second perforation 41 is communicated with the first perforation 32, primary side
Primary side coil 42 is arranged with winding 4；
The inside of magnetic conductive disk 5 has a through hole 51, and on the periphery of magnetic conductive disk 5 provided with most locating notches 52；
The group 2 unshakable in one's determination has two symmetrically arranged first iron cores 21 and the second iron core 22, the first iron core 21 and second
Have respectively at the surface two ends of 22 sides unshakable in one's determination internal convex with one between a side of sidewall portion 211,221, both sides wall portion 211,221
Portion 212,222, and it is respectively equipped with a recess 213,223 at the two ends of the first iron core 21 and second 22 another side surfaces unshakable in one's determination；
And,
Each described two ends of shell fragment 6 have a hook part 61.
During above-mentioned Component composition, magnetic conductive disk 5 is arranged in the bobbin 31 of primary side winding 3, it should be noted that, it is so-called
Setting, magnetic conductive disk 5 can be placed on bobbin 31, or be placed on inside bobbin 31, or, while in bobbin
31 tops set multiple magnetic conductive disks 5 respectively with inside, and in the present embodiment, magnetic conductive disk 5 is placed on the accepting groove 35 of bobbin 31
It is interior；Then primary side winding 4 is set in accepting groove 35, and storehouse is on magnetic conductive disk 5, and the locating notch on the periphery of magnetic conductive disk 5
52 are enclosed on the locating dowel 37 of wallboard 33, magnetic conductive disk 5 is not produced skew in accepting groove 35, then the through hole 51 of magnetic conductive disk 5,
It is interconnected between the first perforation 32 and the perforation of primary side winding 4 second 41 of primary side winding 3；Such as the foregoing first iron core
21 are set in the top of primary side winding 4, and the second iron core 22 is set in the bottom of primary side winding 4, and the first iron core 21 and the second iron
The side of sidewall portion 211,221 of the both sides of the heart 22 is respectively coated by the both sides of primary side winding 3, and the first iron core 21 and the second iron core 22
The convex portion 212,222 of both sides is each passed through the foregoing perforation 41 of first perforation 32, second and through hole 51, and order group 2 unshakable in one's determination forms complete
Flux path；It should be noted that between the first iron core 21 of group 2 unshakable in one's determination and the second iron core 22, except can pass through glued mode
Connection, further using the hook part 61 at the two ends of shell fragment 6 hook into respectively first iron core 21 and second iron core 22 recess 213,
223, resonance transformer 1 is changed the magnetic conductive disk 5 of the different sizes of through hole 51 after disassembling.
The magnetic flux all interconnected with both a coiling and secondary coiling in transformer is referred to as mutual flux (or main flux, Φ 12
Or Φ 21).In addition the magnetic flux of transformer, also has the primary side for only interconnecting and not interconnected with secondary coiling with a coiling
Leakage magnetic flux (or from magnetic flux Φ σ 1), the secondary side leakage magnetic flux (Φ σ 2) for only interconnecting and not interconnected with a coiling with secondary coiling.
Because thering is magnetism to leak outside in transformer certain presence for having leakage magnetic flux.And because leakage magnetic flux is only and a coiling, two
Either one interconnection of secondary coiling, that is, mean this be each coiling inductance it is additional wherein.Therefore, primary side leakage magnetic flux is
Side leakage inductance, secondary side leakage magnetic flux is secondary side leakage inductance；
Coefficient of coup k, self inductance of a coiling is L1, and self inductance of secondary coiling is L2, then each leakage inductance is：
Le1=(1-k) .L1
Le2=(1-k) .L2
The resonance transformer 1 of the present invention obtains demand with traditional transformer and differed, and its feature is that leakage inductance can be according to need
Stepless fine adjustment is sought, it is changeable, making can be specifically designed according to demand completely, and the coefficient of coup is even more to determine leakage inductance size
Parameter, the coefficient of coup, in circuit, for represent inter-module coupling tightness, mutual inductance actual between two Inductive components
The ratio between (absolute value) and its maximum limit are defined as the coefficient of coup, so, resonance side depressor 1 of the invention sets magnetic conductive disk 1
Put in bobbin 31, the coefficient of coup between secondary side coil 35 and primary side coil 42 is changed using magnetic conductive disk 5, and lead
Disk 5 is the magnetically permeable property of tool, and the structure of common transformer is to allow the leakage field of primary and secondary to be looped around between coil, is caused greatly
Vortex damage, leakage field is led back into iron core using magnetic conductive disk, can avoid completely vortex damage generation, efficiency thus can significantly carry
It is high.
Magnetic conductive disk 5 is arranged in the bobbin 31 of primary side winding 3, is made resonance transformer 1 in running, is utilized magnetic conductive disk
5 generation magnetic strengths disturb the leakage inductance waited needed for producing, and the relation of resonance transformer 1 and magnetic conductive disk 5 generation leakage inductance, refer to the 6th figure
It is shown, then work as through hole it is known that the leakage inductance that the size of through hole 51 of magnetic conductive disk 5 is produced with resonance transformer 1 is inversely proportional in figure
51 is bigger, then the leakage inductance that resonance transformer 1 is produced is smaller, conversely, when the leakage inductance that through hole 51 is smaller, then resonance transformer 1 is produced
Bigger, in addition to the size of through hole 51, the thickness of magnetic conductive disk 5 is directly proportional to the leakage inductance that resonance transformer 1 is produced, and, magnetic conduction
The leakage inductance that the permeability of disk 5 is produced to resonance transformer 1 is directly proportional；When the state that magnetic conductive disk 5 is not provided with resonance transformer 1
Under, the leakage inductance that resonance transformer 1 is produced is fairly small, and can be used as anti-magnetic transformer.
Refer to shown in Fig. 4, Fig. 5, the three-dimensional exploded view and sectional view of the second preferred embodiment of the invention, the present embodiment phase
The characteristics of compared with earlier figures 1~Fig. 3 first embodiments, is：There is a slot 34 in the bobbin 31 of primary side winding 3, insert
Locating dowel 37 of the inside of groove 34 provided with plural number, the slot 34 is arranged at interior for foregoing magnetic conductive disk 5.Except foregoing embodiments
Outside, secondary survey winding 3 can further be provided with multiple magnetic conductive disks 5, can be learnt with reference to foregoing embodiments, secondary survey around
The top of bobbin 31 of group 3 has accepting groove 36, and inside sets slot 34, and accepting groove 36 with setting respectively inside slot 34
Multiple magnetic conductive disks 5, then, when needing bigger leakage inductance, directly can be respectively implanted accepting groove 36 and slot 34 by locating dowel 37
It is interior, allow resonance transformer 1 to produce bigger leakage inductance.
In summary it is described, the hair of the resonance transformer of tool leakage inductance adjustment of the invention actually a tool novelty and progressive
It is bright, patent of invention is filed an application in accordance with the law；The only content of described above, only presently preferred embodiments of the present invention illustrate, such as according to this
Change, modification, change or equivalent replacement person that the technological means of invention is extended with category, should fall into the right of the present invention
In claimed range.
Claims (10)
1. a kind of resonance transformer for having leakage inductance adjustment, it at least includes：
One primary side winding, with a bobbin, inside has one first perforation；
On one primary side winding, the bobbin for being arranged on foregoing primary side winding, it is internal with one second perforation, the second perforation
Communicated with the first perforation；
In one magnetic conductive disk, the bobbin for being arranged on foregoing primary side winding, it is internal with a through hole, and through hole is worn with foregoing first
Hole, the second perforation are communicated；
One group unshakable in one's determination, with two symmetrically arranged first it is unshakable in one's determination with it is second unshakable in one's determination, the first iron core be set in foregoing primary side around
Group top, the second iron core is set in foregoing primary side winding bottom；And,
At least two shell fragments；
Be arranged on using the primary side winding on primary side winding, and with first it is unshakable in one's determination with second it is unshakable in one's determination it is upper and lower be arranged after, order
Resonance transformer is in running, the leakage inductance of intensity needed for being produced via foregoing magnetic conductive disk.
2. the resonance transformer of the tool leakage inductance adjustment according to claim 1, it is characterised in that：Described first is unshakable in one's determination with the
Have respectively at the surface two ends of two sides unshakable in one's determination internal with a convex portion, the convex portion difference between a side of sidewall portion, both sides wall portion
Through the foregoing first perforation, the second perforation and through hole.
3. the resonance transformer of the tool leakage inductance adjustment according to claim 1, it is characterised in that：Two shell fragment, it is each
Shell fragment two ends have a hook part, and foregoing first iron core with being respectively equipped with a recess at second another side surface two ends unshakable in one's determination,
Then the shell fragment buckles into the first recess unshakable in one's determination with the second iron core with hook part respectively.
4. the resonance transformer of the tool leakage inductance adjustment according to claim 1, it is characterised in that：The primary side winding
Bobbin top perimeter forms an accepting groove, foregoing magnetic conductive disk and primary between being equipped with the top of a wallboard, and wallboard and bobbin
Side winding is separately positioned in accepting groove.
5. the resonance transformer of the tool leakage inductance adjustment according to claim 4, it is characterised in that：The wallboard bottom is provided with
Plural number locating dowel, then foregoing magnetic conductive disk periphery be correspondingly provided with plural number locating notch.
6. the resonance transformer of the tool leakage inductance adjustment according to claim 1, it is characterised in that：The primary side winding
There is a slot, the slot is arranged at interior for foregoing magnetic conductive disk in bobbin.
7. the resonance transformer of the tool leakage inductance adjustment according to claim 6, it is characterised in that：Provided with many in the slot
Several locating dowels, then magnetic conductive disk periphery be correspondingly provided with more several locating notches.
8. the resonance transformer of the tool leakage inductance adjustment according to claim 1, it is characterised in that：The primary side winding
Bobbin top perimeter is equipped with a wallboard, and at the top of wallboard and bobbin between forms an accepting groove, and foregoing primary side around
There is a slot, then foregoing magnetic conductive disk is separately positioned in slot and accepting groove in the bobbin of group.
9. the resonance transformer of the tool leakage inductance adjustment according to claim 7, it is characterised in that：The wallboard bottom is with inserting
Provided with most locating dowels in groove, then magnetic conductive disk periphery is correspondingly provided with the locating notch of majority.
10. the resonance transformer of the tool leakage inductance adjustment according to claim 1, it is characterised in that：The magnetic conductive disk it is logical
The leakage inductance that hole size is produced with resonance transformer is inversely proportional, and the thickness of magnetic conductive disk is directly proportional to the leakage inductance that resonance transformer is produced,
And, the permeability of magnetic conductive disk is directly proportional to the leakage inductance that resonance transformer is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283947.1A CN107195448B (en) | 2017-04-26 | 2017-04-26 | Has the resonance transformer of leakage inductance adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283947.1A CN107195448B (en) | 2017-04-26 | 2017-04-26 | Has the resonance transformer of leakage inductance adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107195448A true CN107195448A (en) | 2017-09-22 |
| CN107195448B CN107195448B (en) | 2019-10-25 |
Family
ID=59872325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710283947.1A Active CN107195448B (en) | 2017-04-26 | 2017-04-26 | Has the resonance transformer of leakage inductance adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107195448B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6727793B2 (en) * | 2001-08-21 | 2004-04-27 | Astec International Limited | Low-power transformer for printed circuit boards |
| CN202084403U (en) * | 2011-05-21 | 2011-12-21 | 重庆长安汽车股份有限公司 | Transformer for hybrid vehicle direct current converter |
| CN202102840U (en) * | 2011-05-25 | 2012-01-04 | 康舒科技股份有限公司 | Transformer |
| CN202650818U (en) * | 2012-03-22 | 2013-01-02 | 一诺科技股份有限公司 | Transformer structure capable of increasing leakage inductance |
| CN104115243A (en) * | 2012-02-23 | 2014-10-22 | Fdk株式会社 | Transformer |
| CN204204580U (en) * | 2014-05-06 | 2015-03-11 | 东莞力音电子有限公司 | A kind of low magnetic leakage high frequency transformer |
| CN106298197A (en) * | 2016-08-11 | 2017-01-04 | 明纬(广州)电子有限公司 | A kind of detachable transformer |
-
2017
- 2017-04-26 CN CN201710283947.1A patent/CN107195448B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6727793B2 (en) * | 2001-08-21 | 2004-04-27 | Astec International Limited | Low-power transformer for printed circuit boards |
| CN202084403U (en) * | 2011-05-21 | 2011-12-21 | 重庆长安汽车股份有限公司 | Transformer for hybrid vehicle direct current converter |
| CN202102840U (en) * | 2011-05-25 | 2012-01-04 | 康舒科技股份有限公司 | Transformer |
| CN104115243A (en) * | 2012-02-23 | 2014-10-22 | Fdk株式会社 | Transformer |
| CN202650818U (en) * | 2012-03-22 | 2013-01-02 | 一诺科技股份有限公司 | Transformer structure capable of increasing leakage inductance |
| CN204204580U (en) * | 2014-05-06 | 2015-03-11 | 东莞力音电子有限公司 | A kind of low magnetic leakage high frequency transformer |
| CN106298197A (en) * | 2016-08-11 | 2017-01-04 | 明纬(广州)电子有限公司 | A kind of detachable transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107195448B (en) | 2019-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI616906B (en) | Resonant transformer with leakage inductance adjustment | |
| TWI643216B (en) | Integrated inductor | |
| HK1117942A1 (en) | Antenna coil and transmission antenna | |
| CN108292552A (en) | Magnetic structure with self-closing magnetic circuit | |
| US11961657B2 (en) | Multi-coil inductor | |
| CN103107009A (en) | Resonator and wireless power transmission device | |
| CN110024283A (en) | LC resonance device and LC filter | |
| US20150302978A1 (en) | Bobbin structure with winding grooves for adjusting coupling | |
| CN101552101B (en) | Magnetic device with series excitation magnetic core | |
| CN202601367U (en) | Inductance device of bidirectional adjustable magnetic core | |
| CN107195448A (en) | Has the resonance transformer of leakage inductance adjustment | |
| TW201310933A (en) | A one-to-many wireless energy transmission system | |
| CN101295574B (en) | Inductive element | |
| CN106067369A (en) | Transformator and include its power supply device | |
| TW200641925A (en) | Inductor and base thereof | |
| CN112185655B (en) | Leakage inductance adjusting structure of thin resonant transformer | |
| TWM552661U (en) | Resonant transformer with leakage inductance adjustment | |
| US12040125B2 (en) | Thin resonant transformer with leakage inductance adjusting structure | |
| US20220102066A1 (en) | Thin Resonant Transformer with Leakage Inductance Adjusting Structure | |
| CN206116171U (en) | Magnet ring transformer | |
| CN108417362A (en) | A kind of difference common mode inductance | |
| CN208538600U (en) | A kind of common mode inductance | |
| CN214672175U (en) | Single E-type inductive transformer | |
| CN203013435U (en) | High-frequency transformer | |
| CN207458725U (en) | Magnetic ring for passive filter circuit and passive filter circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |