Patent ID: 11870274
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. The wireless charging device according to claim 5, wherein
when the to-be-charged device detected by the first charging unit through induction and the to-be-charged device detected by the second charging unit through induction are a same to-be-charged device, the same to-be-charged device is the target device, and both the first electromagnetic coupling strength and the second electromagnetic coupling strength are less than the first threshold and greater than or equal to the second threshold,
the first controller is further to control the first inverter circuit connected to the first target transmitter coil to output a second high-frequency signal and control the second inverter circuit connected to the second target transmitter coil to output a third high-frequency signal;
the first inverter circuit connected to the first target transmitter coil is to generate the second high-frequency signal and output the second high-frequency signal to the corresponding first target transmitter coil;
the first target transmitter coil is further to receive the second high-frequency signal, generate a second charging signal under excitation by the second high-frequency signal and transmit the second charging signal to the target device, to charge the target device;
the second inverter circuit connected to the second target transmitter coil is to generate the third high-frequency signal and output the third high-frequency signal to the corresponding second target transmitter coil; and
the second target transmitter coil is further configured to receive the third high-frequency signal, generate a third charging signal under excitation by the third high-frequency signal, and transmit the third charging signal to the target device, to charge the target device; wherein
the first target transmitter coil and the second target transmitter coil simultaneously output the second charging signal and the third charging signal.