CN201311808Y - Planar magnetic-integration multi-phase coupling inductor - Google Patents
Planar magnetic-integration multi-phase coupling inductor Download PDFInfo
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- CN201311808Y CN201311808Y CNU2008200023643U CN200820002364U CN201311808Y CN 201311808 Y CN201311808 Y CN 201311808Y CN U2008200023643 U CNU2008200023643 U CN U2008200023643U CN 200820002364 U CN200820002364 U CN 200820002364U CN 201311808 Y CN201311808 Y CN 201311808Y
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Abstract
The utility model relates to a planar magnetic-integration multi-phase coupling inductor used for a multi-phase interleaving paralleled switching power supply. The planar magnetic-integration multi-phase coupling inductor comprises iron cores (1) and (2) and coils and is characterized in that a plurality of magnetic columns (3) are arranged on the iron core (1) so that the iron core (1) presents one or a plurality of U shapes, the number of the magnetic columns (3) is identical with the phase number of the coupling inductor, and the coils of all the phases of the coupling inductor are respectively wound on the magnetic columns (3); magnetic columns (4) are arranged on the iron core (2) so that the iron core (2) presents one or more T shapes, and the number of the magnetic columns (4) is one less than that of the magnetic columns (3); the coupling coefficient of the coupling inductor can be adjusted by changing the lengths of the magnetic columns (4) so as to meet the requirement of leakage inductance; and the purpose of surface mounting can be achieved since the coupling inductor is horizontally placed on a printed circuit board. Since the coupling inductor adopts the iron core structures and the coil structures, the coupling of the arbitrary multi-phase inductor can be realized, not only the coupled structures of the iron cores are simplified, but also the minimization of the lengths of the coils is realized so that the copper loss of the coils is reduced as much as possible.
Description
Technical field
The present invention relates to a kind of inductor, in particular for the integrated multiphase coupled inductor of the plane magnetic of heterogeneous crisscross parallel Switching Power Supply.
Technical background
Over nearly 20 years, along with power electronic technology develops towards high frequencyization, synthesization, direction integrated and complanation, the performance of converters has obtained very big improvement, and its volume, weight and cost also are reduced.In the application of numerous converters, the central processing unit of computer (Central Processing Unit, CPU) and digital signal processor (Digital SignalProcessing, DSP) etc. the power supply design of high accuracy, high-speed microprocessor is the problem that the researcher is concerned about always.Because the particularity of this microprocessor load, industrial quarters will for its provide the DC-DC switch power module of high accuracy electric energy be called voltage regulator module (Voltage RegulatorModule, VRM).
In recent years, fast development along with digitizing technique, the processing capacity of microprocessor increases day by day, processing speed improves constantly, the integrated level of its internal transistor develops towards ultra-large and huge size direction, thereby make the design of microprocessor power supply power supply be faced with new challenges, require to have lower voltage (being lower than 1.2V), bigger electric current (surpassing 100A), higher efficient, littler output voltage ripple (less than 100mV) and transient response speed faster for microprocessor provides the voltage regulator module of electric energy.In order to realize these targets, current, most of voltage regulator modules adopt heterogeneous crisscross parallel technology, thereby power averaging is distributed in each phase, reduce the temperature of hot localised points, and eliminate some input and output current ripples.Yet for certain inductance value and switching frequency, the ripple current of each phase inductance device and switching device is identical with the single-phase voltage adjusting module in the ployphase voltages adjusting module.Though, can improve the transient response speed of voltage regulator module by reducing the inductance value of each phase, but make the output ripple electric current increase, efficient reduces.Thereby people have studied the plane integrated magnetic of heterogeneous crisscross parallel voltage regulator module in recent years, and the inductance that is about to each phase in the voltage regulator module is integrated into coupling inductor, and realize flattening.Heterogeneous crisscross parallel voltage regulator module adopts after the coupling inductor, not only improved the transient response speed of voltage regulator module, and make output current ripple reduce, simultaneously, the volume and the quantity of inductor are also reduced, thereby save microprocessor and leave the confined space of voltage regulator module for, and reduce its cost.
Existing multiphase coupled inductor is representative with the product of U.S. Volterra company, exists the coupled structure complexity of iron core, and the length of coil is longer, the shortcoming that the coil copper loss is bigger.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, a kind of enforcement integrated multiphase coupled inductor of plane magnetic easily is provided, can not only be advantageously used in any heterogeneous crisscross parallel voltage regulator module, and simplified the coupled structure of iron core, and making the contraction in length of coil, copper loss reduces.
The technical scheme that its technical problem that solves the utility model adopts is: the integrated multiphase coupled inductor of a kind of plane magnetic, form by iron core 1,2 and coil, it is characterized in that being provided with on iron core 1 a plurality of magnetic posts 3 makes iron core 1 be one or more " U " font, the number of magnetic post 3 equals the number of phases of coupling inductor, twines each phase coil 5 of coupling inductor on magnetic post 3 respectively; Be provided with magnetic post 4 and make iron core 2 be one or more " T " font on iron core 2, the quantity of magnetic post 4 is lacked one than the quantity of magnetic post 3.
The invention has the beneficial effects as follows: can realize the coupling of any heterogeneous inductor, can not only be advantageously used in the heterogeneous crisscross parallel voltage regulator module, improve voltage regulator module transient response speed, reduce output current ripple, reduce the volume and the quantity of inductor, and simplified the coupled structure of iron core, realized minimizing of loop length, the copper loss of coil is reduced as far as possible.In addition, the utility model can also be used for other heterogeneous crisscross parallel Switching Power Supply, also can be used for the filter of range transformer and anti-electromagnetic interference.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the structure vertical view of the integrated two-phase coupling inductor of a kind of plane magnetic.
Fig. 2 is the structure vertical view of the integrated three-phase coupling inductor of plane magnetic of the embodiment two of Fig. 1.
Among the figure, first iron core of 1-; Second iron core of 2-; The magnetic post of first iron core of 3-; The magnetic post of second iron core of 4-; The 5-coil.
Embodiment
Embodiment one: with reference to accompanying drawing 1, the integrated two-phase coupling inductor of a kind of plane magnetic, be characterized in forming, on " U " font iron core 1, be provided with two magnetic posts 3, on two magnetic posts 3, twine two phase coils 5 respectively by " U " font iron core 1 and " T " font iron core 2 and coil; On " T " font iron core 2, be provided with a magnetic post 4.
Embodiment two: with reference to accompanying drawing 2, the integrated three-phase coupling inductor of a kind of plane magnetic, be characterized in constituting " E " font iron cores 1 and two " T " fonts constitute " TT " font iron core 2 and coil is formed by two " U " fonts, on " E " font iron core 1, be provided with three magnetic posts 3, on three magnetic posts 3, twine three-phase coil 5 respectively; On " TT " font iron core 2, be provided with two magnetic posts 4.The rest may be inferred, can form four phases, five phases, six phase and the integrated coupling inductors of any heterogeneous plane magnetic.
Claims (1)
- The integrated multiphase coupled inductor of a kind of plane magnetic, form by iron core (1), (2) and coil, it is characterized in that being provided with on iron core (1) a plurality of magnetic posts (3) makes iron core (1) be one or more " U " font, the number of magnetic post (3) equals the number of phases of coupling inductor, twines each phase coil (5) of coupling inductor on magnetic post (3) respectively; Be provided with magnetic post (4) and make iron core (2) be one or more " T " font on iron core (2), the quantity of magnetic post (4) is lacked one than the quantity of magnetic post (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200023643U CN201311808Y (en) | 2008-01-05 | 2008-01-05 | Planar magnetic-integration multi-phase coupling inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200023643U CN201311808Y (en) | 2008-01-05 | 2008-01-05 | Planar magnetic-integration multi-phase coupling inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311808Y true CN201311808Y (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200023643U Expired - Fee Related CN201311808Y (en) | 2008-01-05 | 2008-01-05 | Planar magnetic-integration multi-phase coupling inductor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107704A (en) * | 2013-02-28 | 2013-05-15 | 浙江昱能光伏科技集成有限公司 | Integrated transformer suitable for interleaving parallel flyback circuit |
| CN104064338A (en) * | 2014-06-17 | 2014-09-24 | 华为技术有限公司 | Coupling inductor |
| CN104283404A (en) * | 2013-03-13 | 2015-01-14 | 沃尔泰拉半导体公司 | Coupled Inductors With Non-Uniform Winding Terminal Distributions |
| CN105895302A (en) * | 2014-09-01 | 2016-08-24 | 杨玉岗 | Multiphase magnetic integration coupling inductor |
| CN106920648A (en) * | 2015-12-28 | 2017-07-04 | 杨玉岗 | A kind of multi-phase coupling inductor |
| CN110729903A (en) * | 2019-09-11 | 2020-01-24 | 华为技术有限公司 | Magnetic device and bidirectional DC conversion circuit |
-
2008
- 2008-01-05 CN CNU2008200023643U patent/CN201311808Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107704A (en) * | 2013-02-28 | 2013-05-15 | 浙江昱能光伏科技集成有限公司 | Integrated transformer suitable for interleaving parallel flyback circuit |
| CN104283404A (en) * | 2013-03-13 | 2015-01-14 | 沃尔泰拉半导体公司 | Coupled Inductors With Non-Uniform Winding Terminal Distributions |
| CN104283404B (en) * | 2013-03-13 | 2018-12-14 | 沃尔泰拉半导体公司 | Coupling inductor with winding terminals heterogeneous distribution |
| US10276288B2 (en) | 2013-03-13 | 2019-04-30 | Volterra Semiconductor LLC | Coupled inductors with non-uniform winding terminal distributions |
| CN104064338A (en) * | 2014-06-17 | 2014-09-24 | 华为技术有限公司 | Coupling inductor |
| CN104064338B (en) * | 2014-06-17 | 2016-08-24 | 华为技术有限公司 | Coupling inductance |
| CN105895302A (en) * | 2014-09-01 | 2016-08-24 | 杨玉岗 | Multiphase magnetic integration coupling inductor |
| CN105895302B (en) * | 2014-09-01 | 2019-05-28 | 杨玉岗 | A kind of integrated coupling inductor of multiphase magnetic |
| CN106920648A (en) * | 2015-12-28 | 2017-07-04 | 杨玉岗 | A kind of multi-phase coupling inductor |
| CN110729903A (en) * | 2019-09-11 | 2020-01-24 | 华为技术有限公司 | Magnetic device and bidirectional DC conversion circuit |
| US11955883B2 (en) | 2019-09-11 | 2024-04-09 | Huawei Technologies Co., Ltd. | Magnetic apparatus and two-way DC converter circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20120105 |