公开(公告)号：US20220216734A1

公开(公告)日：2022-07-07

申请号：US17703709

申请日：2022-03-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaojie FENG ,  Zhiqiang ZENG ,  Yongfa ZHU ,  Jin QIU

IPC: H02J50/12 ,  H02J50/00 ,  H02J7/00

Abstract: This application discloses a wireless charging system, and pertains to the field of wireless charging technologies. The system includes: a transmit apparatus and a receive apparatus; the transmit apparatus includes an inverter circuit and two transmit electrodes, an input terminal of the inverter circuit is connected to a direct-current power supply, and two output terminals of the inverter circuit are connected to the two transmit electrodes respectively; the receive apparatus includes two receive electrodes and a rectifier circuit, two input terminals of the rectifier circuit are connected to the two receive electrodes respectively, and an output terminal of the rectifier circuit is connected to a load.

公开(公告)号：US20210210991A1

公开(公告)日：2021-07-08

申请号：US17209484

申请日：2021-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mou HE ,  Wei CHEN ,  Yongfa ZHU ,  Shaojie FENG

IPC: H02J50/60 ,  H02J50/10

Abstract: This application provides a wireless charging foreign object detection apparatus, applied to the field of wireless charging technologies. The detection apparatus includes: an excitation coil configured to provide a time-varying magnetic field, detection coils configured to detect a foreign object, and a processor configured to determine whether a foreign object exists. The detection coils may include two detection coils, or may include at least three detection coils. The at least three detection coils may be further configured to eliminate a detection blind spot.

公开(公告)号：US20240356381A1

公开(公告)日：2024-10-24

申请号：US18758006

申请日：2024-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shaojie FENG ,  Zhongnan QIAN ,  Yongfa ZHU ,  Xiaowei CHEN ,  Quanhao SUN ,  Zhiqiang DUAN ,  Jiangtao YANG

IPC: H02J50/40 ,  H02J50/00 ,  H02J50/05 ,  H02J50/70

CPC classification number: H02J50/402 ,  H02J50/005 ,  H02J50/05 ,  H02J50/70

Abstract: This application provides a wireless charging transmitting apparatus, a wireless charging receiving apparatus, and a system thereof. The wireless charging transmitting apparatus includes an inverter circuit, a first transmitting plate, and a second transmitting plate. The wireless charging receiving apparatus includes a first receiving plate, a second receiving plate, and a rectifier circuit. An input end of the inverter circuit is connected to a direct current power supply, a first output end of the inverter circuit is connected to the first transmitting plate, and a second output end of the inverter circuit is connected to the second transmitting plate. A first contact is disposed on the first transmitting plate, and a second contact is disposed on the first receiving plate. When the first contact is in contact with the second contact, the first transmitting plate establishes an electrical connection to the first receiving plate.