A pcb board planar transformer based on non-integer turn winding design

A PCB board and transformer technology, applied in the field of power converter transformer structure, can solve problems such as increasing the number of secondary turns, and achieve the effects of reducing the number of winding turns, flexible transformation ratio, and convenient design of simulation parameters

Active Publication Date: 2022-03-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, with the rapid development of 5G technology, communication equipment and servers, the demand for low-voltage and high-current power supplies is increasing. A large number of scholars have introduced the principle of matrix transformers to increase the number of parallel branches of the magnetic core and secondary windings to output large currents, but at a cost is to increase the number of secondary turns

Method used

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  • A pcb board planar transformer based on non-integer turn winding design
  • A pcb board planar transformer based on non-integer turn winding design
  • A pcb board planar transformer based on non-integer turn winding design

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Embodiment Construction

[0014] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

[0015] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

[0016] Such as figure 1 As shown, the present embodiment provides a PCB board planar transformer based on non-integer turn winding design, which is composed of the following parts: 1) primary winding with odd number of turns; 2) secondary winding with non-integer turns; 3) top face core and bottom face core. The center of the bottom magnetic ...

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Abstract

The invention discloses a PCB planar transformer designed based on a non-integer turn winding, which belongs to the field of power converter transformer structure; the optimized design adopted in the invention includes the following components: a primary side winding designed with two layers of odd turns, and a two-layer non-integer winding. Integer turns designed secondary windings and the top and bottom magnetic cores; the odd-numbered primary windings are arranged between 2-layer secondary windings designed with non-integer turns, and the 2-layer secondary windings are located on the top magnetic between the core and the bottom core. The invention can realize variable ratio control without increasing the equivalent total number of turns.

Description

technical field [0001] The invention belongs to the field of power converter transformer structure. Background technique [0002] As an essential part of the power converter, the transformer is responsible for power transmission and electrical isolation. With the rapid development of power converters, high frequency, high efficiency and high power density have become the trend. Transformers, as a kind of magnetic components, occupy a large volume and weight in the entire converter system, and their losses also account for the total losses. higher ratio. [0003] A lot of research has been done on the optimal design of transformers at home and abroad. The traditional transformer has been improved to a planar transformer, which greatly reduces the volume of the transformer and the number of winding turns. However, with the rapid development of 5G technology, communication equipment and servers, the demand for low-voltage and high-current power supplies is increasing. A large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/24H01F27/30
CPCH01F27/306H01F27/24
Inventor 李正之李子天孔子涵王世山
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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