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Multi-power-taking-device automatic equalization control circuit of non-contact power supply device and control method

A non-contact power supply, automatic equalization technology, applied in the direction of circuit devices, control/regulation systems, high-efficiency power electronic conversion, etc., can solve problems such as difficult to provide high-efficiency power distribution effects, unable to achieve power optimization of electrical appliances, etc., to improve redundancy redundancy and reliability, ensure power sharing, and achieve the effect of power expansion

Inactive Publication Date: 2021-05-14
HUBEI POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, for the power pick-up in the working state, the resonant frequency of the resonant cavity of the pick-up is constantly changing, especially for multiple pick-ups, the use of a static resonant cavity resonant frequency cannot achieve the optimization of the power of the pick-up, and it is difficult to provide Systematic high-efficiency power distribution effect

Method used

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  • Multi-power-taking-device automatic equalization control circuit of non-contact power supply device and control method
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  • Multi-power-taking-device automatic equalization control circuit of non-contact power supply device and control method

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Embodiment Construction

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Possible embodiments of the invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments which have been described herein with reference to the drawings. The embodiments described by referring to the accompanying drawings are exemplary for making the disclosure of the present invention more thorough and comprehensive, and should not be construed as limiting the present invention. Furthermore, if detailed descriptions of known technologies are not technically essential to the illustrated features of the invention, such technical details may be omitted.

[0031] Those skilled in the relevant art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the ...

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Abstract

The invention relates to a multi-power-taking-device automatic equalization control circuit of a non-contact power supply device and a control method. The circuit comprises a controller and a plurality of power taking devices, and the controller comprises a current sharing control circuit, an output voltage feedback differential circuit, a digital signal processor and a voltage given circuit. According to the multi-power-taking-device automatic equalization control method of the non-contact power supply device, the duty ratio of a BOOST circuit can be adjusted by means of the multi-power-taking-device automatic equalization control circuit of the non-contact power supply device, load currents of all power taking devices connected in parallel can be ensured to be the same, power is ensured to be equally divided, redundancy and reliability of the whole system are improved, the power expansion is realized, and the requirement of a high-power load can be met by using a plurality of standard power taking devices.

Description

technical field [0001] The invention relates to the technical field of wireless power supply, in particular to an automatic equalization control circuit and control method for multi-feeders of a non-contact power supply device. Background technique [0002] The characteristic of non-contact power supply is that there is no contact between the power supply and the load, but power supply through coupling. It has the characteristics of no contact, no wear, no spark, waterproof, dustproof, etc., and it is used in wireless charging of personal consumer electronics and wireless charging of electric vehicles. , Logistics systems based on automatic guided vehicles and other fields have gradually been widely used. [0003] A non-contact power supply system is usually a high-frequency current source, including a power transmission part and a corresponding electric pick-up part. For the electric pick-up, only when the resonant frequency of the resonant cavity is equal to the operating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02M3/156
CPCH02J50/12H02M3/156Y02B70/10
Inventor 马学军胡国珍
Owner HUBEI POLYTECHNIC UNIV
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