A wireless charging device, system, mobile terminal and charging terminal

Abstract

The embodiment of the invention provides a wireless charging device and system, a mobile terminal and a charging terminal. The wireless charging device arranged on the mobile terminal side comprises afirst coil, a first control module and a transmitting module which is connected with the first control module. The first control module is used for controlling the transmitting module to transmit anexcitation signal to the charging terminal when the requirement for enhancing the power signal is determined, wherein the excitation signal indicates the charging terminal to enhance the power signal,and the frequency of the excitation signal is greater than that of the power signal. The transmitting module and the first control module are additionally arranged in the wireless charging device arranged on the mobile terminal so that the mobile terminal is enabled to transmit the current charging power requirement to the charging terminal in time, the charging terminal is enabled to rapidly respond to the charging power requirement of the mobile terminal, the wireless charging dynamic response efficiency can be enhanced, the situation of power failure in the wireless charging process can beavoided, the real-time performance and the charging efficiency of wireless charging can be enhanced and the user experience can be enhanced.

Description

technical field [0001] The present invention relates to the technical field of wireless charging, in particular to a wireless charging device, system, mobile terminal and charging terminal. Background technique [0002] At present, with the rapid development of communication technology, mobile terminals (such as mobile phones) are used more and more frequently, and users often use mobile terminals in various occasions and places. At the same time, as the functions of the mobile terminal become more and more powerful, the standby time of the mobile terminal becomes shorter and shorter. Due to the inconvenience of using the traditional wired charging method to charge the rechargeable battery of the mobile terminal, taking mobile phones as an example, different types of mobile phones require different adapters, and the charging ports of the charging cables equipped with different types of mobile phones are also different. There are certain differences and are often incompatibl...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a wireless charging device, system, mobile terminal and charging terminal to solve the problem that the charging power actually required by the mobile terminal increases rapidly during the sudden loading process of the mobile terminal in the prior art, but because the feedback signal is generated by The communication cycle between the mobile terminal and the charging terminal is relatively long, which leads to the failure of the charging terminal to respond to the fast charging demand of the mobile terminal in time, which in turn leads to the problem that the mobile terminal loses power during the charging process.

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