CN108831708A - integrated LLC transformer - Google Patents
integrated LLC transformer Download PDFInfo
- Publication number
- CN108831708A CN108831708A CN201810856060.1A CN201810856060A CN108831708A CN 108831708 A CN108831708 A CN 108831708A CN 201810856060 A CN201810856060 A CN 201810856060A CN 108831708 A CN108831708 A CN 108831708A
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- Prior art keywords
- coil
- receiving portion
- magnetic core
- isolation part
- groove group
- 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.)
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- 238000002955 isolation Methods 0.000 claims abstract description 70
- 230000008878 coupling Effects 0.000 abstract description 17
- 238000010168 coupling process Methods 0.000 abstract description 17
- 238000005859 coupling reaction Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Abstract
It includes primary coil, secondary coil, skeleton and magnetic core that the present invention, which provides a kind of integrated LLC transformer, and skeleton includes magnetic core channel, and magnetic core is set to the inside in magnetic core channel, it is characterised in that：Primary coil includes first part's coil, second part coil and coupling part coil, coupling part coil is connect with first part's coil and second part coil respectively, the outside in magnetic core channel is provided with the first receiving portion, second receiving portion and third receiving portion, the outside in magnetic core channel also sets up the first isolation part and the second isolation part, first isolation part accommodates between the second receiving portion first, second isolation part is between the second receiving portion and third receiving portion, first part's coil is set in the first receiving portion, second part coil is set in third receiving portion, secondary coil is set in the second receiving portion.The present invention has the characteristics that adjustable leakage inductance size, stability are good.
Description
Technical field
The present invention relates to field transformers, specifically, being to be related to integrated LLC transformer.
Background technique
The resonance regulation and stability of entire power supply for convenience, general resonance circuit all extra resonance inductance and capacitor
To adjust resonance circuit.Referring to Fig. 1, existing LLC resonance transformer includes resonance circuit 4, resonance circuit 4 include capacitor C1,
Resonant inductance L1 and transformer 6, capacitor C1 connect with resonant inductance L1, and resonant inductance L1 connects with transformer 6, pass through capacitor
Resonance between inductance in C1, resonant inductance L1 and transformer 6 forms a resonance circuit 4 and carries out frequency adjusting to realize
Output voltage is constant.But such that power supply architecture is complicated, volume increases, electromagnetic interference is big and product efficiency is low.
To solve the above-mentioned problems, have in the prior art using the leakage inductance increased in transformer and substitute resonant inductance use
, to save an independent resonant inductance, the loss of device is reduced, product efficiency is improved, wherein leakage inductance refers to
The magnetic line of force caused by primary coil cannot be all coupled in secondary coil, therefore the inductance of leakage field.But since resonance needs
Resonant inductance it is larger, the leakage inductance of transformer often very little generallys use and increases the distance between primary coil and secondary coil,
So that the coefficient of coup between primary coil and secondary coil becomes smaller, achievees the purpose that increase leakage inductance, but often make in this way
It obtains volume of transformer to become larger, magnetic coupling ability is poor.
The prior art, which also has by increasing a magnetic core between primary coil and secondary coil, increases transformer leakage inductance
Scheme, such as Chinese invention patent application CN201610995019.3 disclose one kind by primary coil and secondary wire
Increase a leakage field core between circle, forms collateral branch's magnetic flux, thus increase leakage inductance, but leakage inductance size is not easy to adjust under this mode
Section.Since the resonant inductance in resonance circuit being replaced with leakage inductance, resonant energy required for entire power supply and leakage inductance size at
Direct ratio, the resonant energy that different power occasions needs is different, in order to meet the needs of different capacity occasion, needs to carry out
Adjusting to leakage inductance size.
Summary of the invention
The object of the present invention is to provide the good integrated LLC transformers of a kind of adjustable leakage inductance size, stability.
To achieve the goals above, integrated LLC transformer provided by the invention includes primary coil, secondary coil, skeleton
And magnetic core, skeleton include magnetic core channel, magnetic core is set to the inside in magnetic core channel, it is characterised in that：
Primary coil includes first part's coil, second part coil and coupling part coil, first part's coil and second
Coil sections are set side by side, and coupling part coil is connect with first part's coil and second part coil respectively, magnetic core channel
Outside be provided with the first receiving portion, the second receiving portion and third receiving portion, the first receiving portion, the second receiving portion and third
Receiving portion is spaced setting side by side, and the outside in magnetic core channel also sets up the first isolation part and the second isolation part, the first isolation part with
And second between isolation part interval setting side by side, the first isolation part accommodated between the second receiving portion first, described second every
From portion between second receiving portion and the third receiving portion, first part's coil is set to first receiving portion
On, the second part coil is set in the third receiving portion, and the secondary coil is set in second receiving portion.
By above scheme as it can be seen that primary coil is divided into first part's coil, second part coil and coupling part coil,
The distribution of the magnetic line of force of primary coil can be increased by the position difference of three coil sections in this way, so that primary line
The coefficient of coup between circle and secondary coil becomes smaller, and finally increases leakage inductance, further, can be by changing first part's line
The number of turns of circle, second part coil and coupling part coil achievees the purpose that adjust leakage inductance size.Using in first part's line
Increase by the first isolation part between circle and secondary coil, increases by the second isolation part between second part coil and secondary coil, make
Obtaining can be further such that the coefficient of coup between first part's coil and second part coil and secondary coil becomes smaller, to increase
Add leakage inductance, further, the adjusting to leakage inductance can be carried out by changing the thickness of the first isolation part and the second isolation part.
Further embodiment is that the first isolation part includes at least two first spacing blocks disposed in parallel, the second isolation part
Including at least two second spacing blocks disposed in parallel.
As it can be seen that the first isolation part and the second isolation part are made of multiple spacing blocks, by increasing or reducing spacing block
The thickness of adjustable first isolation part and the second isolation part.
Further embodiment is that the first isolation part is equipped with the first groove group, and the second isolation part is equipped with the second groove group.
As it can be seen that the first isolation part is equipped with multiple grooves, since isolation part is that primary coil and secondary coil are isolated
It opens, is made from an insulative material so generally adopting, creepage distance can be increased by the way that groove is arranged, so that isolation part electrification subtracts
It is few, increase the insulating capacity of isolation part, to improve the electric property stability and safety coefficient of transformer.Further
, groove can also support coil to pass through, and play the stability for improving transformer.
Further embodiment is that the edge of the axial ends in institute's magnetic core channel is additionally provided with first side block and second side
Side block, first side block and second side block are spaced setting side by side, and the first receiving portion, the second receiving portion and third receiving portion are set
It sets between first side block and second side block, first side block is equipped with third groove group, and it is recessed that second side block is equipped with the 4th
Slot group.
As it can be seen that by being arranged the first receiving portion, the second receiving portion and third receiving portion in first side block and second
Between the block of side, so that playing the role of protecting primary coil and secondary coil.Due to first side block and second side
Side block is also insulating materials, by the way that multiple grooves are respectively set on first side block and second side block, can increase and climb
Electrical distance, the further electric appliance stability and safety coefficient for improving transformer, further, groove can also support
Signal pins are pierced by, and increase the stability of transformer.
Further embodiment is that the first supporting is provided with the first adapting table group, and the second supporting is provided with the second undertaking
The side of a groove of third groove group is arranged in platform group, an adapting table of the first adapting table group, the second adapting table group
The side of a groove of the 4th groove group is arranged in one adapting table.
As it can be seen that the effect to signal pins support can be further functioned as by increasing adapting table, transformer is further increased
Structural stability can.
Further embodiment is that the first signal pins and second signal pin pass through third groove group and first respectively and hold
Consecutive group.
As it can be seen that third groove group and the first adapting table group can also further function as support the first signal pins and second
The effect of signal pins.
Further embodiment is that third signal pins and fourth signal pin pass through the second groove group, respectively
Four groove groups and the second adapting table group.
As it can be seen that the second groove group, the 4th groove group and the second adapting table can play support third signal pins and
The effect of fourth signal pin.
Further scheme is that coupling part coil passes through the first groove group and the second groove group, and is located at first
Between isolation part and second isolation.
As it can be seen that coupling part coil is set between the first isolation part and the second isolation part, and on the first isolation part
The second groove group in one groove group and the second isolation part can play the role of supporting coupling part coil.
Detailed description of the invention
Fig. 1 is the circuit diagram of the LLC resonance transformer of the prior art.
Fig. 2 is the structural exploded view of the integrated LLC transformer embodiments of the present invention.
Fig. 3 is the first viewing angle constructions figure of the integrated LLC transformer embodiments of the present invention.
Fig. 4 is the second viewing angle constructions figure of the integrated LLC transformer embodiments of the present invention.
Fig. 5 is the skeleton enlarged drawing in the structural exploded view of the integrated LLC transformer embodiments of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Referring to fig. 2, the integrated LLC transformer of the present embodiment includes magnetic core 50, skeleton 10, primary coil 40, secondary coil
46。
Wherein, the solid magnetic core of magnetic core 50, as being made of a pair of of core combination, wherein magnetic core 50 include magnetic core center pillar 52 with
And magnetic core side column 54, magnetic core center pillar 52 are located at the intermediate position of magnetic core side column 54, magnetic core center pillar 52 is placed in magnetic core channel 30
In, magnetic core side column 54 is used to the most of area covers of skeleton 10 improving the inductance of entire transformer, and also act magnetic
The effect of shielding.
Primary coil 40 draws including first part's coil 41, second part coil 42, coupling part coil 43, the first signal
Foot 44, second signal pin 45, wherein coupling part coil 43 and first part's coil 41 and second part coil 42 are distinguished
Connection, the first signal pins 44 are set side by side with second signal pin 45.Preferably, by setting first for primary coil 40
The position difference of coil sections 41, second part coil 42 and coupling part coil 43, three coil sections is come so that primary
The coefficient of coup between coil 40 and secondary coil 46 can control in the reasonable scope, meet leakage inductance requirement.Further preferably
, make every layer of the number of turns of primary coil 40 more reasonable using the coil that Double-wire ring turns to by the way of, improves leakage inductance essence
Degree.It is further preferred that can be by changing first part's coil 41, second part coil 42 and coupling part coil 43
How much coil turn adjusts the magnetic flux size of entire primary coil 40, to reduce the coupled systemes between secondary coil 46
Number realizes the adjusting to leakage inductance size.
Secondary coil 46 includes third signal pins 47 and fourth signal pin 48, and third signal pins 47 and the 4th believe
Number pin 48 is arranged in parallel, further, since primary coil 40 adjusts leakage by changing the number of turns of the coil of three parts
Sense, correspondingly, the number of turns of entire primary coil 40 is much smaller than the number of turns of secondary coil 46.
Skeleton 10 includes magnetic core channel 30, for placing magnetic core center pillar 52 inside magnetic core channel 30, outside magnetic core channel 30
Equipped with the first receiving portion 11, the second receiving portion 12 and third receiving portion 13, the first receiving portion 11, the second receiving portion 12 and
Spacing parallel arranging is arranged between three receiving portions 13, and first part's coil 41 is looped around in the first receiving portion 11, second part coil 42
It is looped around in third receiving portion 13, secondary coil 46 is looped around in the second receiving portion 12.Preferably, it is also set outside magnetic core channel 30
There are the first isolation part 14 and the second isolation part 17, wherein the first isolation part 14 and the second isolation part 17 are using insulation material
Made of material, interval setting side by side between the first isolation part 14 and the second isolation part 17, the first isolation part 14 is in the first receiving portion
11 and second between receiving portion 12, and the second isolation part 17 is between the second receiving portion 12 and third receiving portion 13.It can be seen that the
One isolation part 14 first part's coil 41 can be isolated with secondary coil 46, and the second isolation part 17 can be by second part coil
42 isolation achieve the purpose that increase leakage inductance so that the coefficient of coup becomes smaller between primary coil 40 and secondary coil 46.
Preferably, the first isolation part 14 includes two the first spacing blocks 15 disposed in parallel, and the second isolation part 17 includes
Two the second spacing blocks 18 disposed in parallel, it can be seen that, the quantity of the first spacing block 15 in the present embodiment is 2 pieces, and the
The quantity of two spacing blocks 18 be also be 2 pieces, since the quantity of the spacing block on the first isolation part 14 and the second isolation part 17 can
With adjustment, the quantity by increasing or decreasing spacing block can change the thickness of the first isolation part 14 and the first isolation part 17,
To further change the coefficient of coup between first part's coil 41 and secondary coil 46 and second part coil 42 and secondary
The coefficient of coup between coil 46, to realize the adjusting to leakage inductance size.
The edge of the axial ends in magnetic core channel 30 is additionally provided with first side block 20 and second side block 21, the first side
Interval is arranged side by side for side block 20 and second side block 21, and the first receiving portion 11, the second receiving portion 12 and third receiving portion 13 are set
It sets between the first side block 20 and second side block 21.Since first side block 20 is close to the first receiving portion 11, second
Side block 21 carries out position limit to first part's coil 41 close to third receiving portion 13, first side block 20 and the first isolation part 14
It is fixed, it places coil and falls off, second side block 21 and the second isolation part 17 carry out position restriction to second part coil 42, prevent line
Circle is fallen.
Skeleton 10 further includes the first portions 31 and second seat 32, and the first portions 31 and the downside of first side block 20 connect
It connects, second seat 32 is connect with the downside of second side block 21, and the first portions 31 and second seat 32 are used to support entire bone
Frame 10.Skeleton 10 further includes the first supporting 26 and the second supporting 28,20 upside of the first supporting 26 and first side block
It connects, is connected on the upside of the second supporting 28 and second side block 21, further, the first supporting 26 includes the first adapting table group
27, the second supporting 28 includes the second adapting table group 29.
Transformer further includes bottom plate 60, and for bottom plate 60 in the lower section of skeleton 10, bottom plate 60 includes the first pin bores 61, second
Pin bores 62, third pin bores 63, the 4th pin bores 64, thermal vias 66, the first pin bores 61 and second pin hole 62 are simultaneously
The left side of bottom plate 60 is arranged in column, and third pin bores 63 and the 4th pin bores 64 are disposed in parallel in the right side of bottom plate 60, heat dissipation
Through-hole 66 is provided in the intermediate region of bottom plate 60.Wherein, the first signal pins 44 pass through the first pin bores 61, and second signal is drawn
Foot 45 passes through second pin hole 62, and third signal pins 47 pass through third pin bores 63, and fourth signal pin 48 passes through the 4th and draws
Foot hole 64, it is seen then that bottom plate 60 can carry out position restriction to the signal pins of primary coil 40 and secondary coil 46, place letter
Number pin slides, and improves the stability of transformer.Further, by the way that thermal vias 66 is arranged, so that 10 bottom of skeleton
Coil is exposed in air, accelerates the heat dissipation of coil, further increases the stability of transformer.
Referring to Fig. 3 to Fig. 4, it is additionally provided with the first groove group 22 on the first isolation part 14, is also provided on the second isolation part 17
Second groove group 23, the first groove group 22 in the present embodiment are distributed on 2 spacing blocks 15 disposed in parallel, 2 differences every
It is arranged in parallel between 2 adjacent grooves on block, correspondingly, the second groove group 23 is distributed in 2 spacing blocks disposed in parallel
On 17, it is arranged in parallel between 2 adjacent grooves on 2 different spacing blocks.Coupling part coil 43 is arranged in the first isolation part
14 and second between isolation part 17, since coupling part coil 43 is respectively by groove in the first groove group 22 and second recessed
Groove in slot group 23, the groove on groove and the second groove group 23 in the first groove group 22 can play support coupling part
The effect of coil 43.Further, setting groove can also increase creepage distance, reduce the first isolation part 14 and the second isolation
The charging property in portion 17 improves the stability of transformer.
Preferably, first side block 20 is equipped with third groove group 24, and second side block 21 is equipped with the 4th groove group 25,
A groove in third groove group 24 is connect with an adapting table of the first adapting table group 27, the first signal pins 44 and second
Signal pins 45 respectively can a groove Jing Guo third groove group 24 and adapting table group the extraction of an adapting table so that
It can further play the role of supporting the first signal pins 44 and second signal pin 45.One in 4th groove group 25
A groove is connect with an adapting table of the second adapting table group 29, and third signal pins 47 and fourth signal pin 48 respectively can be with
One adapting table of a groove and the second adapting table group 29 by the 4th groove group 25 is drawn, and is allowed to further
Play the role of supporting third signal pins 47 and fourth signal pin 48.
It can be seen from the above, the integrated LLC transformer embodiments of the present invention can be by changing three coil sections of primary coil
The number of turns and change the thickness of isolation part and carry out the adjusting to leakage inductance, also climb electricity by the way that groove increase is arranged on isolation part
Apart from and skeleton bottom, the stability that bottom plate improves transformer is set.
It is any more using primary coil to be arranged to finally it is emphasized that the present invention is not limited to the above embodiments
A coil sections, which change to achieve the purpose that adjust leakage inductance size and change the thickness of isolation part carrying out the number of turns, to be reached and adjusts
The purpose for saving leakage inductance size, is within the scope of the invention.
Claims (10)
1. integrated LLC transformer, including primary coil, secondary coil, skeleton and magnetic core, the skeleton includes magnetic core channel,
The magnetic core is set to the inside in the magnetic core channel, it is characterised in that：
The primary coil includes first part's coil, second part coil and interconnecting piece coil, first part's coil
Be set side by side with the second part coil, the interconnecting piece coil respectively with first part's coil and second described
Sub-coil connection, the outside in the magnetic core channel are provided with the first receiving portion, the second receiving portion and third receiving portion, and described the
One receiving portion, the second receiving portion and third receiving portion are spaced setting side by side, the outside in the magnetic core channel also set up first every
From portion and the second isolation part, interval setting side by side between first isolation part and the second isolation part, the first isolation part exists
Described first accommodates between the second receiving portion, and second isolation part is in second receiving portion and the third receiving portion
Between, first part's coil is set in first receiving portion, and the second part coil is set to the third receiving portion
On, the secondary coil is set in second receiving portion.
2. a kind of integrated LLC transformer according to claim 1, it is characterised in that：
First isolation part includes at least two first spacing blocks disposed in parallel, and second isolation part includes at least two
Second spacing block disposed in parallel.
3. a kind of integrated LLC transformer according to claim 2, it is characterised in that：
First isolation part is equipped with the first groove group, and second isolation part is equipped with the second groove group.
4. a kind of integrated LLC transformer according to claim 3, it is characterised in that：
The edge of the axial ends in the magnetic core channel is additionally provided with first side block and second side block, the first side
Block and second side block are spaced setting side by side, and first receiving portion, second receiving portion and the third receiving portion are set
Set between the first side block and the second side block, the first side block be equipped with third groove group, described second
Side block is equipped with the 4th groove group.
5. a kind of integrated LLC transformer according to claim 4, it is characterised in that：
The skeleton further includes the first supporting and the second supporting, between first supporting and second supporting simultaneously
Column setting, first supporting connect with the first side block, and first supporting is close to the third groove group,
Second supporting is connect with the second side block, and second supporting is close to the 4th groove group.
6. a kind of integrated LLC transformer according to claim 5, it is characterised in that：
First supporting is provided with the first adapting table group, and second supporting is provided with the second adapting table group, and described
The side of a groove of the third groove group is arranged in one adapting table of one adapting table group, the second adapting table group
The side of a groove of the 4th groove group is arranged in one adapting table.
7. a kind of integrated LLC transformer according to claim 6, it is characterised in that：
The primary coil includes the first signal pins and second signal pin, and first signal pins and described second are believed
Number pin is set side by side, and the secondary coil includes third signal pins and fourth signal pin, the third signal pins
And fourth signal pin is set side by side.
8. a kind of integrated LLC transformer according to claim 7, it is characterised in that：
First signal pins and the second signal pin are accepted by the third groove group and described first respectively
Platform group.
9. a kind of integrated LLC transformer according to claim 7, it is characterised in that：
The third signal pins and the fourth signal pin pass through respectively the second groove group, the 4th groove group and
Second adapting table group.
10. according to a kind of described in any item integrated LLC transformers of claim 4 to 9, it is characterised in that：
The interconnecting piece coil passes through the first groove group and the second groove group, and is located at first isolation part and institute
It states between the second isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856060.1A CN108831708A (en) | 2018-07-31 | 2018-07-31 | integrated LLC transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856060.1A CN108831708A (en) | 2018-07-31 | 2018-07-31 | integrated LLC transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108831708A true CN108831708A (en) | 2018-11-16 |
Family
ID=64152333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810856060.1A Pending CN108831708A (en) | 2018-07-31 | 2018-07-31 | integrated LLC transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108831708A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286880A (en) * | 2005-03-31 | 2006-10-19 | Sanken Electric Co Ltd | Transformer |
| TW200929281A (en) * | 2007-12-18 | 2009-07-01 | Spi Electronic Co Ltd | Transformer structure |
| CN101859638A (en) * | 2009-04-07 | 2010-10-13 | 台达电子工业股份有限公司 | Transformer structure with leakage inductance |
| CN106298195A (en) * | 2015-05-12 | 2017-01-04 | 光宝电子(广州)有限公司 | Magnetics |
| CN107221419A (en) * | 2015-03-04 | 2017-09-29 | 江苏理工学院 | The skeleton and Switching Power Supply of switch transformer |
| CN108039270A (en) * | 2017-11-17 | 2018-05-15 | 海宁联丰东进电子有限公司 | A kind of differential mode transformer altogether |
| CN208507417U (en) * | 2018-07-31 | 2019-02-15 | 遂宁普思电子有限公司 | Integrated LLC transformer |
-
2018
- 2018-07-31 CN CN201810856060.1A patent/CN108831708A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286880A (en) * | 2005-03-31 | 2006-10-19 | Sanken Electric Co Ltd | Transformer |
| TW200929281A (en) * | 2007-12-18 | 2009-07-01 | Spi Electronic Co Ltd | Transformer structure |
| CN101859638A (en) * | 2009-04-07 | 2010-10-13 | 台达电子工业股份有限公司 | Transformer structure with leakage inductance |
| CN107221419A (en) * | 2015-03-04 | 2017-09-29 | 江苏理工学院 | The skeleton and Switching Power Supply of switch transformer |
| CN106298195A (en) * | 2015-05-12 | 2017-01-04 | 光宝电子(广州)有限公司 | Magnetics |
| CN108039270A (en) * | 2017-11-17 | 2018-05-15 | 海宁联丰东进电子有限公司 | A kind of differential mode transformer altogether |
| CN208507417U (en) * | 2018-07-31 | 2019-02-15 | 遂宁普思电子有限公司 | Integrated LLC transformer |
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