公开(公告)号：US10706942B2

公开(公告)日：2020-07-07

申请号：US16146946

申请日：2018-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guan Chen ,  Xiao Yu ,  Debo Wang

IPC: G11C16/30 ,  G11C5/14 ,  G06F1/30

Abstract: A backup power circuit is provided. The backup power circuit includes a backup power branch array that includes N backup power branches that are coupled in parallel; and each backup power branch include a capacitor component and a unilateral conductive element, where the unilateral conductive element is configured to cut off a current path between capacitor components in the N backup power branches that are coupled in parallel, so that when some backup power branches are short-circuited, it can be ensured that backup power functions of other backup power branches are not affected, and backup power effects of the backup power branches are improved.