Title:
BACKUP POWER CIRCUIT AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/167112
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of backup power, and discloses a backup power circuit and an electrical device. An output end of the backup power circuit is electrically connected to an input end of a power supply circuit of the electrical device. The output end of the power supply circuit is electrically connected to an input end of the electrical device. An input end of the backup power circuit is connected between the output end of the power supply circuit and the input end of the electrical device. The backup power circuit comprises a backup power branch array made up of N groups of mutually- and parallelly-connected backup power branches. Each group of backup power branches comprise a capacitance subassembly and a unidirectional conductive element, and the unidirectional conductive element is used to interrupt a current path between the capacitance subassemblies in the N groups of mutually- and parallelly-connected backup power branches. By configuring the backup power branch array made up of the N groups of mutually- and parallelly-connected backup power branches, the backup power function of other groups of backup power branches will not be affected by any short-circuit occurring in a portion of the backup power branches, thereby enhancing the effectiveness of the backup power branches.
Inventors:
CHEN GUAN (CN)
YU XIAO (CN)
WANG DEBO (CN)
YU XIAO (CN)
WANG DEBO (CN)
Application Number:
PCT/CN2017/077865
Publication Date:
October 05, 2017
Filing Date:
March 23, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F1/30
Foreign References:
| CN105867573A | 2016-08-17 | |||
| CN105279109A | 2016-01-27 | |||
| CN101625873A | 2010-01-13 | |||
| CN102156679A | 2011-08-17 |
Other References:
See also references of EP 3428776A4
Download PDF: