公开(公告)号：US20210313929A1

公开(公告)日：2021-10-07

申请号：US17351988

申请日：2021-06-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Baoguo CHEN ,  Pan CHEN ,  Yingpei HUANG ,  Fengru WANG

IPC: H02S50/10 ,  H02S40/32 ,  H02S40/38

Abstract: This application discloses a compensation circuit and method for potential induced degradation, a power module, and a photovoltaic system. The compensation circuit includes a switch, a first resistor, and a controller. The switch and the first resistor are connected in series, a first end of the compensation circuit is connected to a positive output end PV+ of a photovoltaic module, and a second end of the compensation circuit is connected to a second end of a first DC-DC converter. The controller is configured to control the switch to be closed when output voltage of the photovoltaic module is less than preset voltage, so that the first DC-DC converter provides electric energy of the battery to the second end of the compensation circuit. A second resistor is connected between the positive output end PV+ and a negative output end PV− of the photovoltaic module.

公开(公告)号：US20200028618A1

公开(公告)日：2020-01-23

申请号：US16579853

申请日：2019-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinlin PENG ,  Pengpeng DONG ,  Pan CHEN ,  Pinlu YANG ,  Yi WANG

IPC: H04L1/00 ,  H04W72/04 ,  H04L5/00 ,  H04B7/0456 ,  H04L27/26

Abstract: Various embodiments provide a data communication method. Under the method, a transmit end maps each code block group CBG in N CBGs to each layer in a corresponding layer group based on a correspondence between the N CBGs and N layer groups. Each layer group includes at least one layer, and N is a positive integer. The transmit end then sends data to a receive end. T transport block corresponding to the data includes the N CBGs. In this way, a mapping relationship between a CBG and a layer group is established by grouping layers, so as to improve data reception quality, through interference cancellation, for transmission among different layer groups, and ensure adaptivity to a CBG-based retransmission feedback, thereby optimizing transmission performance of an entire communications system.