Winding drawing method for planar transformer and automatic wiring software system

A technology for planar transformers and transformer windings, which is applied in instruments, special data processing applications, electrical digital data processing, etc., can solve the problems of low development efficiency, poor product consistency, and inability to realize automatic wiring of planar transformers, so as to improve efficiency. and consistency, the effect of meeting the needs of automatic routing

Active Publication Date: 2022-03-25
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing planar transformer winding drawing is generally done manually by designers, and there is no standardized winding drawing logic and algorithm. Different designers have different drawing habits, lack of unified drawing rules and constraints, resulting in poor product consistency and dependence on manual work. High degree, low development efficiency
[0005] Most of the existing automatic wiring functions are the functions of the circuit design and development software, but only for electronic components with electrical network attributes
The design of the planar transformer is mainly composed of copper wires and buried holes, the electrical network properties are the same, there are no electronic components, and the automatic wiring function of the circuit design and development software cannot realize the automatic wiring of the planar transformer.
[0006] In summary, none of the existing technical solutions can meet the requirements of automatic wiring of planar transformer windings

Method used

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  • Winding drawing method for planar transformer and automatic wiring software system
  • Winding drawing method for planar transformer and automatic wiring software system
  • Winding drawing method for planar transformer and automatic wiring software system

Examples

Experimental program
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Effect test

Embodiment 1

[0030] This embodiment provides a winding drawing method for planar transformers, such as figure 1 shown, including the following steps:

[0031] Planar transformer magnetic core model selection: read the required magnetic core model from all the planar transformer magnetic core models in the database. Such as figure 2 As shown, the read planar transformer core data are size A, size B, size C and size D.

[0032] Size parameter input: Input drawing rules and size constraints for planar transformer winding design. Such as figure 2 As shown, the size constraint parameters are size d1, size d2, size d3, size d4, buried hole diameter M and buried hole diameter S.

[0033] Winding parameter input: input the total number of layers of the planar transformer, the number of winding turns, the number of winding layers, the starting position, the direction of rotation and the distribution information of the shielding layer. Such as image 3 As shown, the starting position is the ...

Embodiment 2

[0039] This embodiment is on the basis of embodiment 1:

[0040] This embodiment provides an automatic wiring software system for planar transformers. Cooperating with the winding drawing method for planar transformers in Embodiment 1, it can quickly realize the automatic wiring requirements of planar transformers for multi-variety, small-batch and high-integration switching power supplies. The loop nested calculation method of the object can quickly obtain the winding drawing result, such as Image 6 shown. Specifically, the automatic wiring software system includes:

[0041] The magnetic core model import and export module is used to read and write the magnetic core model into the database in real time, so as to update the database. Such as figure 2 As shown, the read planar transformer core data are size A, size B, size C and size D.

[0042] The size parameter input module is used to form a unified drawing rule and size constraint for planar transformer winding design...

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Abstract

The invention discloses a winding drawing method for a planar transformer and an automatic wiring software system, and the winding drawing method comprises the following steps: selecting a magnetic core model of the planar transformer, inputting size parameters, inputting winding parameters, calculating single-layer information, calculating winding drawing, and outputting a PCB file. The single-layer information calculation comprises calculation of detailed distribution information of the planar transformer winding on all signal layers and shielding layers; the winding drawing calculation comprises drawing and calculating coils and buried holes of the planar transformer winding in all signal layers and shielding layers; establishing a mathematical model and a parameter object of the planar transformer winding, and performing multipoint line segment tangent calculation by adopting an absolute coordinate system and relative coordinate system interactive mode; meanwhile, input parameter constraints and algorithm boundary conditions are considered, and drawing results of coils and buried holes are obtained. The drawing result of the planar transformer winding can be quickly calculated, the PCB file is generated, and the automatic wiring requirement of the planar transformer winding is met.

Description

technical field [0001] The invention relates to the technical field of planar transformers, in particular to a winding drawing method and an automatic wiring software system for planar transformers. Background technique [0002] The planar transformer is a flat continuous copper spiral etched on the printed circuit board and stacked on the magnetic core. It has the characteristics of low shape, low loss, and low leakage inductance, and has great advantages in improving the characteristics of switching power supplies. The advantage is the core component of the switching power supply. [0003] For the design of planar transformers for multi-variety, small-batch and highly integrated switching power supplies, designers generally draw them manually, and there have always been design and development problems such as long multi-layer stack development cycles, poor consistency, and a lot of repetitive labor. If there is a change and adjustment of external parameters, it will lead ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/394G06F115/12
CPCG06F30/394G06F2115/12Y02E60/00
Inventor 徐意婷余俊宏何传燕黄付刚王凤岩赵伟刚王斌
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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