DD-PS strong anti-offset loose coupling transformer and parameter determination method thereof

A loosely coupled transformer, DD-PS technology, applied in fixed transformers or mutual inductance, transformer/inductor cores, transformer/inductor components, etc., can solve problems such as low system efficiency and weak anti-offset ability of compensation topology , to achieve the effects of reduced design difficulty, improved anti-offset performance, and excellent anti-offset performance

Active Publication Date: 2021-06-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low system efficiency caused by the weak anti-offset ability of the existing compensation topology, and propose a DD-PS strong anti-offset loosely coupled transformer and its parameter determination method

Method used

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  • DD-PS strong anti-offset loose coupling transformer and parameter determination method thereof
  • DD-PS strong anti-offset loose coupling transformer and parameter determination method thereof
  • DD-PS strong anti-offset loose coupling transformer and parameter determination method thereof

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specific Embodiment approach 1

[0060] Specific implementation mode one: the following combination figure 1 Describe this embodiment, a DD-PS strong anti-offset loosely coupled transformer described in this embodiment includes a primary side coupling mechanism and a secondary side coupling mechanism; the primary side coupling mechanism and the secondary side coupling mechanism are relatively arranged;

[0061] The primary side coupling mechanism includes a primary side planar solenoid coil a, a primary side DD coil f and a primary side ferrite core b;

[0062] The primary side ferrite core b is rectangular, and the primary side DD coil f is set on the side of the primary side ferrite core b adjacent to the secondary side coupling mechanism, parallel to the primary side ferrite core b;

[0063] The primary side planar solenoid coil a is divided into two parts and wound on the primary side ferrite core b, and the number of turns of the two parts of the primary side planar solenoid coil a is the same;

[0064]...

specific Embodiment

[0119] Step 1: Determine the value range of the mutual inductance of the DD-PS loosely coupled transformer according to constraints such as voltage stress, current stress, voltage gain, and output power, and obtain the minimum mutual inductance M 12_min and the maximum mutual inductance M 12_max ;

[0120] The two parts of the primary plane solenoid coil a are set as coil 1 and coil 2 respectively, the two parts of the primary side DD coil f are respectively set as coil 3 and coil 4, and the two parts of the secondary plane solenoid coil e are respectively set as Coil 5 and Coil 6, and the two parts of the secondary side DD Coil d are respectively set as Coil 7 and Coil 8; as Figures 2 to 5 shown;

[0121] Step 2: Determine the size of the primary side magnetic core and secondary side magnetic core of the loosely coupled transformer and the outer contour size of the DD coil according to the size limitation of the actual application. In order to make full use of the space a...

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Abstract

The invention relates to a DD-PS strong anti-offset loose coupling transformer and a parameter determination method thereof, belongs to the technical field of wireless power transmission, and solves the problem of low system efficiency caused by a weak anti-offset capability of the existing compensation topology. According to the invention, a planar solenoid coil and a DD coil are combined, and different connection modes are adopted at the primary side and the secondary side so that anti-offset performance of the DD-PS loose coupling transformer in a magnetic field direction is remarkably improved, and meanwhile the excellent anti-offset performance of the planar solenoid loose coupling transformer and the DD-shaped loose coupling transformer in the vertical magnetic field direction is reserved. According to the parameter determination method of the loose coupling transformer, the parameters of the loose coupling transformer can be rapidly determined, and an optimal solution meeting application requirements is obtained. The invention is suitable for the technical field of wireless power transmission.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to an anti-offset loose coupling transformer. Background technique [0002] The traditional contact power transmission technology has low flexibility and poor reliability, and its application in many scenarios is limited. As an alternative, wireless power transfer technology has become a research hotspot in recent years. Compared with traditional contact power transmission technology, wireless power transmission technology has the advantages of flexibility, safety and reliability, and is increasingly used in various occasions, such as electric vehicles, implanted medical devices, consumer electronics, industrial robots , Underwater electrical equipment, etc. [0003] The loosely coupled transformer is a key component of the wireless power transmission system. After the primary and secondary sides of the traditional loosely coupled transformer are sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F19/04H01F27/28H01F27/24H01F27/30H01F27/34G06F30/20G06F111/04
CPCH01F19/04H01F27/2823H01F27/24H01F27/306H01F27/34G06F30/20G06F2111/04Y02E40/30
Inventor 姚友素庄廷伟麦建伟王懿杰刘晓胜徐殿国
Owner HARBIN INST OF TECH
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