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Construction method of array type integrated magnetic piece of multi-phase coupling inductor and integrated inductor

A technology of integrated inductors and construction methods, applied in the field of inductors, can solve the problems of complex manufacturing process, difficult standardization, high design cost, etc., and achieve the effect of expanding the number of integrated phases, freely adjusting the coupling degree, and increasing the effective heat dissipation area

Inactive Publication Date: 2020-04-17
BEIJING INST OF SPACECRAFT SYST ENG +1
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Problems solved by technology

At present, there are many problems in the traditional integrated inductors used in multi-phase interleaved parallel magnetic integrated converters. DC bias and asymmetry lead to increased loss and worse EMI. The design cost is high, the manufacturing process is complicated, and standardization is difficult to achieve. The problem of temperature rise has become a bottleneck restricting the further high frequency of multi-phase interleaved parallel magnetic integrated converters

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  • Construction method of array type integrated magnetic piece of multi-phase coupling inductor and integrated inductor
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  • Construction method of array type integrated magnetic piece of multi-phase coupling inductor and integrated inductor

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0033] In order to solve the problems in the prior art, the present invention proposes a new type of matrix based on the analysis of the influence of the asymmetry of the integrated inductance on the output characteristics of the high-frequency multi-phase interleaved parallel magnetic integrated converter. Formula symmetrization of high-frequency integrated inductors. Adopting the multi-scale analysis method of combining field and circuit and decoupling magnetic integration, exploring the mechanism that integrated magnetic parts can eliminate DC bias, freely adjust the coupling degree, and expand the number of integrated phases arbitrarily, and propose a method suitable for multi-phase interleaving The coupled inductor of the parallel magnetic integrated converter is specifically an array integrated magnetic part and its multi-degree-of-freed...

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Abstract

The invention provides a construction method of an array type integrated magnetic piece of a multi-phase coupling inductor and the integrated inductor, and belongs to the technical field of inductors.The construction method comprises the following steps of: constructing a matrix structure , and arranging coupling magnetic core units in a matrix structure; constructing a matrix type integrated inductor based on the matrix structure; adopting multi-phase inductance symmetry full coupling or multi-phase inductance symmetry end-to-end sequential coupling to form a symmetrical integrated inductor.The construction method has the advantages that: direct-current magnetic bias can be eliminated, the coupling degree can be freely adjusted, and the number of integrated phases can be randomly expanded.

Description

technical field [0001] The present invention relates to the technical field of inductors, in particular to a method for constructing an array-type integrated magnetic part of a multi-phase coupled inductor, and to an integrated inductor constructed by the method for constructing an array-type integrated magnetic part of a multi-phase coupled inductor . Background technique [0002] As an important part of the multi-phase interleaved parallel magnetic integrated converter, the integrated inductor not only determines the volume, weight and cost of the converter to a large extent, but also directly affects the efficiency, output dynamics and steady-state performance of the converter. At present, there are many problems in the traditional integrated inductors used in multi-phase interleaved parallel magnetic integrated converters. DC bias and asymmetry lead to increased loss and worse EMI. The design cost is high, the manufacturing process is complicated, and standardization is ...

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Application Information

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IPC IPC(8): H01F38/00
CPCH01F38/00
Inventor 张晓峰张东来谷雨刘治钢王磊张文佳
Owner BEIJING INST OF SPACECRAFT SYST ENG
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