Power adaptive control wireless charging transceiver

Abstract

The invention discloses a power adaptive control wireless charging transceiver. The power adaptive control wireless charging transceiver comprises a DC supply power, a power voltage stabilizing module, a signal generation module, a single-chip microcomputer, a current sampler, a full-bridge driving amplification module, a transmitting coil and a Qi standard receiving end, wherein the signal generation module is connected with the full-bridge driving amplification module, the full-bridge driving amplification module is connected with the current sampler, the current sampler is connected with the single-chip microcomputer, the single-chip microcomputer is connected with the signal generation module, the four parts form the closed-loop loop sequential cascade structure, and an output end of the full-bridge driving amplification module is connected with the transmitting coil. The power adaptive control wireless charging transceiver is advantaged in that the transmitting power is adaptivelyadjusted as the charging distance and the position change, the constant power output is kept, the power adaptive control algorithm is highly accurate, power adjustment can be made quickly based on load change, the transmitting circuit scheme is compatible with the Qi standards, the wireless charging distance can reach more than 50mm, and the wireless charging area can be effectively extended through the array transmitting coil.

Description

technical field [0001] The invention belongs to the technical field of wireless energy transmission, and relates to a wireless charging transceiver device for adaptive power control. Background technique [0002] In recent years, wireless charging has gradually changed our lives. With the introduction of wireless charging technology into a series of consumer electronics products such as mobile phones, tablets, and watches, wireless charging has very broad development prospects. At present, the mainstream wireless charging technology in the market is based on the Qi standard based on magnetic induction coupling. For example, the wireless charging products launched by mobile phone manufacturers such as Apple and Samsung are all based on the Qi standard, which realizes the mutual compatibility of wireless charging products between different brands, and can predict Qi Standards are the direction of future wireless charging product development. [0003] At present, the Qi wirele...

AI Technical Summary

Problems solved by technology

[0003] At present, the Qi wireless charging technology for mobile phones has the following problems: low transmission power, lack of adaptive control of transmission power, short charging distance, any position offset between the transceiver coils will lead to a significant drop in transmission power and transmission efficiency, etc.

However, this method only realizes some basic functions of the Qi standard chip, and does not realize the adaptive control of the transmission power, and the charging distance is short, and there is no uniform design of the magnetic field.

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