Method and apparatus for wireless power transmission

A technology of wireless power transmission and wireless communication, applied in the direction of circuit devices, circuits, inductors, etc.

Inactive Publication Date: 2015-06-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In a wireless power transfer network consisting of multiple devices such as transmitters, receivers, and trans

Method used

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  • Method and apparatus for wireless power transmission
  • Method and apparatus for wireless power transmission
  • Method and apparatus for wireless power transmission

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Embodiment Construction

[0029] discussed below Figure 1 to Figure 21 The various embodiments used in this patent document to describe the principles of the disclosure are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless power transfer network.

[0030]The following documents and standard specifications are hereby incorporated into this disclosure as if fully set forth herein: Inductively coupled wireless power transfer networks have been used in many applications, ranging from drilling rigs (Thierry Bieler, Marc Perrottet, Val é rie Nguyen and Yves Perriard, "Contactless Power and Information Transmission", IEEE Transactions on Industrial Applications, vol.38, No.5, September-October 2002), Implantable Devices (K.Chen, Z .Yang, L.Hoang, J.Weiland, M.Humayun and W.Liu, "An Integrated 256-Channel Epiretinal ...

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Abstract

A method for wireless power transmission includes establishing respective wireless communication link between a coordinating transmitter and each receiver. The method further includes measuring respective mutual impedance between a coordinating transmitter and each receiver by applying a voltage to the coordinating transmitter and configuring each receiver to measure an induced current in response to the applied voltage. The method calculates respective matching impedance for the coordinating transmitter and each receiver based on corresponding mutual impedance. The method transmits the respective matching impedance to each receiver to enable each receiver to adjust to have the respective matching impedance. The method adjusts the coordinating transmitter to have the respective matching impedance.

Description

technical field [0001] The present disclosure relates to a wireless power transfer network using magnetic resonance, and more particularly, to a wireless power transfer network with a wireless communication link between devices for sharing information in order to improve optimal power transfer efficiency. Background technique [0002] Wireless power transfer to electronic devices, also known as wireless energy transfer or wireless charging, is an area that is attracting increasing attention. In a wireless power transfer network consisting of multiple devices such as transmitters, receivers, and transponders, one challenge is the impedance adjustment of the devices to achieve improved power transfer efficiency. Contents of the invention [0003] A method for wireless power transfer includes establishing a corresponding wireless communication link between cooperating transmitters and each receiver. The method includes measuring respective mutual impedances between the coope...

Claims

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Application Information

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IPC IPC(8): H02J17/00
CPCH02J50/80H02J50/50H02J50/12H01F38/14H02J50/10
Inventor I.扎尼迪斯U.阿扎德S.拉贾戈帕尔
Owner SAMSUNG ELECTRONICS CO LTD
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