Backup power circuit and electrical device
AssigneeHuawei Technologies Co., Ltd.
InventorsGuan Chen, Xiao Yu, Debo Wang
Life of this patent
Estimating the term…
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.
Claims17
A backup power circuit, wherein an output end of the backup power circuit is coupled to an input end of a power supply circuit of an electrical device, an input end of the backup power circuit is coupled to an output end of the power supply circuit, the backup power circuit comprises:
- a backup power branch array comprising N backup power branches that are coupled in parallel, N is an integer greater than or equal to 2, and each backup power branch comprise a capacitor component and a unilateral conductive element, wherein
- the unilateral conductive element is coupled to an input end of the backup power branch array, an output end of the backup power branch array, and the capacitor component separately;
- and
- the unilateral conductive element is configured to:
- cut off a current path between the N backup power branches that are coupled in parallel, and allow a current to flow into the input end of the backup power branch array and flow out from the output end of the backup power branch array.
An electrical device, wherein the electrical device comprises a backup power circuit, wherein an output end of the backup power circuit is coupled to an input end of a power supply circuit of the electrical device, an input end of the backup power circuit is coupled to an output end of the power supply circuit, the backup power circuit comprises:
- a backup power branch array comprising N backup power branches that are coupled in parallel, N is an integer greater than or equal to 2, and each backup power branch comprise a capacitor component and a unilateral conductive element, wherein
- the unilateral conductive element is coupled to an input end of the backup power branch array, an output end of the backup power branch array, and the capacitor component separately;
- and
- the unilateral conductive element is configured to:
- cut off a current path between the N backup power branches that are coupled in parallel, and allow a current to flow into the input end of the backup power branch array and flow out from the output end of the backup power branch array.
Dependencies are inferred from the claim text.