Patent attributes
A device to-be-charged, a wireless charging apparatus and method are provided. The apparatus includes: a voltage converting circuit, configured to receive an input voltage and convert the input voltage to obtain an output voltage and an output current of the voltage converting circuit; a wireless transmitting circuit, configured to transmit an electromagnetic signal according to the output voltage and the output current of the voltage converting circuit to conduct wireless charging on a device to-be-charged; and a first control circuit, configured for wireless communication with the device to-be-charged during the wireless charging to acquire an output voltage and/or an output current of a step-down circuit fed back by the device to-be-charged, and adjust the output voltage and/or the output current of the voltage converting circuit according to the output voltage and/or the output current of the step-down circuit to adjust a transmission power of the electromagnetic signal.
