Wireless charge receiver and wireless charge method

Abstract

The embodiment of the present invention discloses a wireless charge receiver and a wireless charge method. The method comprises the steps that: a receiver uses a first oscillating circuit to receive pulse energy emitted by an emitter, wherein the first oscillating circuit comprises a first receiving coil configured to convert pulse energy and output electric energy; when a voltage value output bythe first oscillating circuit is increased to a first reference voltage value, the receiver sends a power transmission command to the emitter through a communication module to allow the emitter to send energy according to the power transmission command, wherein the first reference voltage value is a working voltage threshold value of a processor; and the receiver receives the energy emitted by theemitter according to the power transmission command through a second oscillating circuit. A new coil is arranged at the receiver to increase the coupling coefficient with the emitter in the Ping stage and improves the degree of freedom. After a preset voltage value is reached, the receiver uses the receiving coil to receive the energy transmitted by the emitter so as to ensure the transmission efficiency while lifting the degree of freedom.

Description

technical field [0001] The present application relates to the field of electronic technology, and in particular to a wireless charging receiver and a wireless charging method. Background technique [0002] Wireless power transfer (WPT), also known as wireless charging technology, is replacing the old wired power transfer. Wireless Charging The wireless charging transmitter can provide power to the wireless charging wireless charging receiver without relying on the charging cable. For example, when charging a mobile phone, it does not need to be connected to a charging cable, and can be directly charged wirelessly. There are many ways to realize the wireless charging technology. In the field of consumer electronics products, the electromagnetic induction wireless charging technology is generally used at present. Based on the electromagnetic induction wireless charging technology, the wireless power consortium (wireless power consortium) has formulated an international wirele...

AI Technical Summary

Problems solved by technology

[0004] Since the Qi standard stipulates the upper limit of the power of the Ping pulse energy sent by the wireless charging transmitter during the ping phase, the receiving coil of the wireless charging receiver is limited by the reactive component and transmission efficiency, and the coupling coefficient with the wireless charging transmitter is low , therefore, there is a technical defect with a low degree of freedom

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