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Wireless power transmission method, device and system

A technology of wireless power transmission and wireless power, which is applied in transmission systems, near-field transmission systems, circuit devices, etc.

Active Publication Date: 2018-12-07
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the wireless power transmission specified in the WPC, the power transmission standard exceeding 5W has not yet been defined, but it is expected that the specification of medium power transmission and reception exceeding 5W will be implemented

Method used

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  • Wireless power transmission method, device and system
  • Wireless power transmission method, device and system
  • Wireless power transmission method, device and system

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Embodiment Construction

[0048] The technology disclosed here can be applied to wireless power transmission (non-contact power transmission). However, the technology disclosed here is not limited thereto, and can also be applied to all types of power transmission systems and methods, wireless charging circuits and methods, and methods and devices using power transmitted in a wireless manner to which the technical essence of the technology can be applied. .

[0049] It should be noted that the technical terms used herein are only used to describe specific embodiments, and are not used to limit the present invention. In addition, unless otherwise specifically defined, the technical terms used herein should be understood as the meanings commonly understood by those skilled in the art to which the present invention belongs, and should not be understood in an overly broad or overly narrow sense. Also, if technical terms used herein are wrong terms that cannot correctly express the spirit of the invention,...

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Abstract

Wireless power transmission method, device and system. A wireless power transmission method for a wireless power transmission device using a full-bridge and a half-bridge inverter topology, the method comprising the steps of: detecting whether a wireless power receiver exists within a range where power can be wirelessly transmitted ; sending a detection signal to the wireless power receiver; receiving at least one of identification information and setting information from the wireless power receiver; receiving a control error packet from the wireless power receiver; The combination of drive frequency, duty cycle, or phase of the power signal to the bridge inverter controls the amount of power to be transferred.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201310375830.8, the application date is July 9, 2013, and the invention title is "wireless power transmission method, device and system". technical field [0002] This specification relates to a wireless power transmission method, device and system in the field of wireless power transmission. Background technique [0003] In recent years, a method of wirelessly supplying power to a wireless power receiver without contact has been used to replace the conventional method of supplying power in a wired manner. A wireless power receiver that receives energy wirelessly may be directly driven by the received wireless power, or may use the received wireless power to charge a battery, and then allow the wireless power receiver to be driven by the charged power. [0004] The Wireless Power Consortium (WPC), which manages magnetic induction wireless power transfer technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12H02J50/80H02J7/00
CPCH02J50/12H02J50/80H02J50/90H01F38/14H02J7/00712H04B5/79
Inventor 李至贤李贤范朴容徹李在成
Owner LG ELECTRONICS INC