Magnetic integration device and magnetic integration switching power supply
A magnetic integration, magnetic core technology, applied in circuits, electrical components, transformer/inductor components, etc., can solve the problems of increased slot size, large magnetic loss, large size of magnetic parts and large board area
Pending Publication Date: 2022-03-01
HUAWEI TECH CO LTD
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Problems solved by technology
The resonant core and the transformer core in this solution are independent, resulting in superposition of core size tolerances, increased printed circuit board (printed circuit board, PCB) slot size, and an assembly gap of about 1mm must be reserved between two cores. Make the volume and board area of the magnetic parts in the power supply larger
Moreover, each magnetic core has two side columns, the magnetic circuits of the four magnetic cores are independent, there is no magnetic circuit offset between the magnetic cores, and the magnetic loss is large
Method used
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[0048]The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In this application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. The character " / " generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b or c can represent: a, b, c, a and b, a and c, b and c, or, a and b and c, wherein a, b and c can be single or multiple. In addition, in order to clearly des...
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The embodiment of the invention discloses a magnetic integration device and a magnetic integration switching power supply, relates to the technical field of circuits, and solves the problem that in the prior art, a magnetic device occupies a large board area and is large in size. According to the specific scheme, the magnetic integration device comprises a magnetic core I, the magnetic core I comprises a core body, a first side column, a second side column, M first wrapping posts and N second wrapping posts, and M and N are integers larger than or equal to 1; the core body is connected with the first side column, the second side column, the M first wrapping posts and the N second wrapping posts, the first side column is arranged at the first end of the core body in the extending direction, the second side column is arranged at the second end of the core body in the extending direction, and the M first wrapping posts and the N second wrapping posts are arranged between the first side column and the second side column.
Description
technical field [0001] The embodiments of the present application relate to the field of circuit technology, and in particular, to a magnetically integrated device and a magnetically integrated switching power supply. Background technique [0002] A switching power supply is a high-frequency power conversion device used to convert a type of input voltage into the voltage or current required by the user. With the continuous improvement of the power density and power level of the power supply in the 5th generation mobile networks (5G) network, the proportion of magnetic parts in the power module is increasing. In order to meet people's energy requirements To meet the requirements of green, environmental protection, high efficiency and safety, switching power supply is developing towards high efficiency and high density. [0003] The prior art provides a design scheme of a switching power supply, such as figure 1 As shown, the power supply includes two resonant cores and two ...
Claims
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IPC IPC(8): H01F27/30
CPCH01F27/306
Inventor 李佳张希俊姚军谭威
Owner HUAWEI TECH CO LTD