Magnetic integrated matrix transformer and isolated DC/DC converter

A technology of transformer and magnetic integration, applied in transformer/inductor shell, transformer/inductor cooling, transformer/inductor magnetic core, etc., can solve the problems of lack of versatility and poor flexibility of matrix transformers, and improve the transformation efficiency. efficiency, flexibility and versatility, and improved core utilization
CN114093620AActive Publication Date: 2022-02-25NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2022-02-25

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Abstract

The invention discloses a magnetic integrated matrix transformer and an isolated DC / DC converter, and belongs to the technical field of power electronics. The magnetic integrated matrix transformer comprises a magnetic core, a primary winding, a secondary winding and a rectifying unit, the magnetic core is provided with a base, and a middle column and at least three side columns are formed on the base; at least one secondary winding is wound on the magnetic core, each secondary winding is wound on at least two adjacent side columns, and the middle column is used for winding the primary winding. On the premise that a magnetic core is not changed, the secondary winding structure of the transformer is flexibly configured, any transformer turn ratio and any secondary path number output are achieved, the size and weight of the transformer can be reduced, the power density of the converter can be improved, the frequency range requirements of the converter under different working occasions can be met, and a magnetic part has flexibility and universality. Meanwhile, when the secondary winding of the transformer is arranged in an orthogonal mode, the current sharing effect is achieved, and the good heat dissipation effect can be achieved through the metal shell wrapping the magnetic core.
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Description

technical field

[0001] The invention relates to a magnetic integrated matrix transformer and an isolated DC / DC converter based on the magnetic integrated matrix transformer, belonging to the technical field of power electronics. Background technique

[0002] With the development of power electronics technology and the progress of high-frequency semiconductor devices, switching converters are developing in the direction of high frequency, integration and modularization. High frequency, high efficiency, high power density and integration are the development trends of switching converters. At the same time, due to the increasing demand for data center power supplies and high dynamic response power supplies, switching converters are also developing towards low-voltage and high-current applications. Traditional transformers have been difficult to meet the needs of miniaturization and high power density. In order to improve the efficiency and power density of this type of convert...

Claims

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