公开(公告)号：US20200076249A1

公开(公告)日：2020-03-05

申请号：US16555695

申请日：2019-08-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaolin Mao ,  Baoshan Wu ,  Songnan Yang ,  Haihong Wei ,  Wei Zhou

IPC: H02J50/80 ,  H02J7/02 ,  H02J50/12 ,  H04B5/00

Abstract: Described herein is an apparatus having a wireless power receiver comprising a receiver coil used to receive power wirelessly and to communicate wirelessly. The wireless power receiver outputs power to a bus based on the wirelessly received power. The apparatus has an open-loop DC-DC converter and a linear regulator. The apparatus has a controller configured to enable the open-loop DC-DC converter to use the power on the bus to charge a battery. The controller is further configured to control the linear regulator to stabilize a current in the bus at the output of the wireless power receiver to reduce interference to the wireless communication when using the receiver coil to wirelessly communicate from the wireless power receiver to the transmitter of the power while the open-loop DC-DC converter is being used to charge the battery.

公开(公告)号：US11239708B2

公开(公告)日：2022-02-01

申请号：US16555695

申请日：2019-08-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaolin Mao ,  Baoshan Wu ,  Songnan Yang ,  Haihong Wei ,  Wei Zhou

IPC: H02J50/80 ,  H02J7/02 ,  H04B5/00 ,  H02J50/12

Abstract: Described herein is an apparatus having a wireless power receiver comprising a receiver coil used to receive power wirelessly and to communicate wirelessly. The wireless power receiver outputs power to a bus based on the wirelessly received power. The apparatus has an open-loop DC-DC converter and a linear regulator. The apparatus has a controller configured to enable the open-loop DC-DC converter to use the power on the bus to charge a battery. The controller is further configured to control the linear regulator to stabilize a current in the bus at the output of the wireless power receiver to reduce interference to the wireless communication when using the receiver coil to wirelessly communicate from the wireless power receiver to the transmitter of the power while the open-loop DC-DC converter is being used to charge the battery.