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Transformer and DC/DC converter

A technology for transformers and surface mount devices, applied in the field of transformers, can solve problems such as limiting power increase, and achieve the effects of solving volume problems, simple winding methods, and good operability

Inactive Publication Date: 2014-08-06
航天科工惯性技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a transformer and DC / DC converter, reduce the volume of magnetic materials, solve the problem of limiting power increase, and obtain better Coupling and Output Noise Performance

Method used

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Embodiment Construction

[0017] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.

[0018] It should be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related aspects of the present invention are omitted. Invent other details that don't really matter.

[0019] An embodiment of the present invention provides a transformer, including a magnetic core and a skeleton, figure 1 It is the front view of the ...

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Abstract

The embodiment of the invention discloses a transformer and a DC / DC converter and relates to the technology of transformers. According to the transformer and the DC / DC converter, the size of a magnetic material is reduced, the limitation on the increase of power is eliminated, and the coupling performance and noise output performance are improved. The transformer comprises a magnetic core and a framework, wherein the magnetic core is a surface mount device, the framework comprises a cylinder, neither end of the cylinder is provided with a bottom, the outer wall of each end of the cylinder is provided with two fan-shaped surfaces which are in axial symmetry, the distance between the two fan-shaped surfaces on the outer wall of one end is equal to the distance between the two fan-shaped surfaces on the outer wall of the other end, the fan-shaped surfaces are perpendicular to the surface of the cylinder, and a winding is arranged on the surface of the cylinder and is led out through notches between the fan-shaped surfaces. The transformer is mainly used for the DC / DC converter.

Description

technical field [0001] The invention relates to transformer technology, in particular to a transformer and a DC / DC converter. Background technique [0002] With the continuous development of inertial navigation technology, the power density of the DC / DC module that supplies power for it needs to be continuously improved. The increase in power density will bring many problems to the DC / DC module. Among them, the transformer used by the DC / DC module has the following three problems. Unable to resolve: [0003] First, when the power density is below 50W, firstly, the limitation of transformer magnetic flux variation leads to too many windings, and the efficiency is extremely low; secondly, the radiation noise of the transformer is serious; finally, the heat dissipation of the transformer itself is poor. [0004] Second, when the power reaches or exceeds 75W, in order to reduce the size of the transformer, SMD surface mount transformers can be used, and PCB or copper strips can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/30H01F27/24
Inventor 刘晓刚陈京谊李诚李敬朱强孙景雷
Owner 航天科工惯性技术有限公司
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