公开(公告)号：US20220005795A1

公开(公告)日：2022-01-06

申请号：US17480972

申请日：2021-09-21

Applicant: Huawei Technologies Co., Ltd. ,  FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： Zhixiang HU ,  Yujian LIN ,  Zhihua LIU ,  Eckart HOENE ,  Wei TAN

IPC: H01L25/16 ,  H05K1/18 ,  H01L23/00

Abstract: The present application provides an integrated device, and a power switching device comprising the integrated device. The integrated device comprises a substrate, a die arranged inside the substrate, at least one capacitor arranged on a surface of the substrate, wherein the die and the at least one capacitor are electrically connected. The power switching device comprises at least one integrated device according to the aforementioned embodiments of the present application. The compact design of the integrated device enables a high frequency, high efficiency, high power density power switching device.

公开(公告)号：US20200161978A1

公开(公告)日：2020-05-21

申请号：US16750999

申请日：2020-01-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yujian LIN ,  Haitao CHEN ,  Yue CHEN ,  Zhiqiang XIANG

IPC: H02M3/158 ,  G06F1/28 ,  H02M3/335

Abstract: A power supply circuit is disclosed. The circuit includes n capacitors, m power branches, and a control chip, where the m power branches include at least one first-type power branch and at least one second-type power branch, the first-type power branch includes a pre-boost topology structure and an open-loop topology structure connected in series to the pre-boost topology structure, the pre-boost topology structure is connected to the control chip, the pre-boost topology structure includes a straight-through state and a closed-loop state, and the control chip is configured to control, based on an output voltage of the power source, the pre-boost topology structure to switch between the straight-through state and the closed-loop state, so that the pre-boost topology structure pre-adjusts the output voltage of the power source and outputs a voltage range that meets a requirement of the open-loop topology structure.