公开(公告)号：US20230129480A1

公开(公告)日：2023-04-27

申请号：US17928205

申请日：2021-03-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Hong ,  Changsheng Pei

IPC: H02J50/12 ,  H02J50/80 ,  H02J7/00 ,  H02M3/335

Abstract: An electronic device and a control method for the electronic device are provided, and relate to the field of wireless charging technologies, to improve compatibility of a power receiving terminal device in wireless charging with a power transmitting terminal device by improving ASK communication quality. The electronic device includes a device circuit (50), a voltage conversion circuit (203), a rectifier circuit (202), a resonant circuit (201), and a modulation circuit (204). The resonant circuit (201) includes a resonant inductor (L2) and a resonant capacitor control circuit (ci1) connected in series to the resonant inductor (L2). A first end of the resonant inductor (L2) is coupled to the rectifier circuit (202), a second end of the resonant inductor (L2) is coupled to a first end of the resonant capacitor control circuit (ci1), and a second end of the resonant capacitor control circuit (ci1) is coupled to the rectifier circuit (202).

公开(公告)号：US12283824B2

公开(公告)日：2025-04-22

申请号：US17928205

申请日：2021-03-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Hong ,  Changsheng Pei

IPC: H02J50/12 ,  H02J7/00 ,  H02J50/80 ,  H02M3/335

Abstract: An electronic device and a control method for the electronic device are provided, and relate to the field of wireless charging technologies, to improve compatibility of a power receiving terminal device in wireless charging with a power transmitting terminal device by improving ASK communication quality. The electronic device includes a device circuit (50), a voltage conversion circuit (203), a rectifier circuit (202), a resonant circuit (201), and a modulation circuit (204). The resonant circuit (201) includes a resonant inductor (L2) and a resonant capacitor control circuit (ci1) connected in series to the resonant inductor (L2). A first end of the resonant inductor (L2) is coupled to the rectifier circuit (202), a second end of the resonant inductor (L2) is coupled to a first end of the resonant capacitor control circuit (ci1), and a second end of the resonant capacitor control circuit (ci1) is coupled to the rectifier circuit (202).