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A method and system for increasing the total amount of energy transmission in a magnetic resonance charging system

A charging system and energy transmission technology, applied in the field of electronics, can solve problems such as the inability to maximize PDL, and achieve the effect of avoiding PDL reduction

Active Publication Date: 2022-07-15
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and system for increasing the total amount of energy transmission in a magnetic resonance charging system, so as to solve the problem that the maximum PDL cannot be realized in the prior art

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  • A method and system for increasing the total amount of energy transmission in a magnetic resonance charging system

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Embodiment Construction

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0046] In the process of solving the problems existing in the existing technology, it was found through practical experimental observation that the technical solution of maximizing the PTE of the existing system could not well ensure the maximization of the PDL of the system. Paradoxical phenomena support this view:

[0047] The first phenomenon is the PTE-PDL conflict phenomenon: when the RXs and TXs in the system are strongly coupled, the PTE of the sys...

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Abstract

The invention discloses a method and system for increasing the total amount of energy transmission in a magnetic resonance charging system, comprising: adjusting the TX-RX mutual inductance by using a specially-made TX coil with adjustable size; RX pair, and time division multiplexing is used to avoid simultaneous charging of the strongly coupled RX pair. The technical solutions provided by the embodiments of the present invention consider two major charging paradox phenomena for the first time in the PDL maximization problem of the MRC‑WPT system. Corresponding measures were taken to solve the two charging paradox phenomena, which well solved the two common charging paradox problems in practical systems, greatly improved the charging efficiency of practical systems, and maximized PDL.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a method and system for improving the total amount of energy transmission in a magnetic resonance charging system. Background technique [0002] With the rapid development of intelligent technology, more and more intelligent terminal devices have brought many conveniences to people's daily life, such as mobile phones, tablet computers, and wearable devices. With the development of intelligent technology, the charging management technology for smart devices is also constantly improving, and the wireless power transfer (WPT) technology has emerged as the times require, which provides convenience for people's charging management. [0003] Generally, a wireless charging system based on a magnetic field medium mainly has two implementation manners, including a manner based on electromagnetic induction (Inductive Coupling, IC) and a manner based on magnetic resonance (Magnetic Reso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12H02J50/40
CPCH02J50/12H02J50/402
Inventor 周颢周王球李向阳
Owner UNIV OF SCI & TECH OF CHINA