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Method and apparatus for wireless power transmission

A radio transmission and power technology, applied in transmission systems, near-field transmission systems, circuit devices, etc., can solve the problem that the receiving equipment cannot drive the load, and achieve the effect of avoiding sudden voltage drop, high load driving ability, and improving efficiency.

Inactive Publication Date: 2014-05-21
AOTU ELECTRONICS WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, since the current QI communication protocol supports output power up to 5W, if the power of the load is 10W or higher, a sudden voltage drop may cause the receiving device to fail to drive the load

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

[0020] A detailed description will be given below of embodiments of the present invention. Although the present invention is illustrated and described with reference to these embodiments, it should be noted that the present invention is not limited only to these embodiments. On the contrary, the present invention covers all alternatives, modifications and equivalents within the spirit and scope of the invention as defined by the appended claims.

[0021] In addition, in order to better illustrate the present invention, numerous specific details are given in the following detailed description. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the subject matter of the present invention.

[0022] The present invention provides a method, apparatus and system for radio transm...

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Abstract

Method and apparatus for wireless power transmission. A first target level of a parameter associated with the electric power is sent to the transmitting device. The electric power is then received from the transmitting device. When the parameter of the received electric power reaches the first target level, a second target level of the parameter is sent to the transmitting device. The second target level of the parameter is determined based on a magnitude of a load coupled to the receiving device.

Description

technical field [0001] The present invention relates to the technical field of radio transmission, and in particular, to a radio transmission method, device and system. Background technique [0002] Radio transmission is the transfer of electrical energy from a source to an electrical load without the interconnection of man-made conductors. The most common form of radio transmission is through the use of direct induction followed by resonant magnetic induction. Other means of radio transmission include electromagnetic radiation in the form of microwaves or lasers and conduction of electricity. Radio transmissions are used for battery charging, or other suitable loads in numerous mobile devices, such as mobile phones, cameras, music players, headphones, and the like. [0003] In a radio transmission system, a receiving device (eg, a receiver) may provide control information to a sending device (eg, a transmitter) by, eg, load modulation on a power signal. Based on the rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00
CPCH02J50/10H02J50/80H02J7/00034H02J50/12H02J50/60H04B5/79
Inventor 王军王强窦凡陈筠詹姆斯·王
Owner AOTU ELECTRONICS WUHAN
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