Patent ID: 11870275
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 19:
20. The method according to claim 15, wherein the resonance module further comprises at least one switch, and the at least one foreign-matter detection coil and the at least one resonant capacitor are connected in parallel and/or in series through the at least one switch; and the apparatus further comprises a charging control module, wherein the charging control module is connected to all of the at least one switch, an output end of the determining module, and the receive coil;
before the excitation module outputs the second signal to the resonance module, the charging control module controls a status of the at least one switch, and selects the target coil and the target capacitor; and
after the determining module determines whether there is a metal foreign matter in the area of the target coil, the charging control module further controls a working status of the receive coil based on a determining result of the determining module.