BATTERY CELL CONNECTION STATE HANDOVER METHOD, POWER SUPPLY SYSTEM, AND ELECTRONIC DEVICE

Title:

BATTERY CELL CONNECTION STATE HANDOVER METHOD, POWER SUPPLY SYSTEM, AND ELECTRONIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2022/142491

Kind Code:

A1

Abstract:

Embodiments of the present application relates to the field of power supplies. Disclosed are a battery cell connection state handover method, a power supply system, and an electronic device, capable of handing over a connection state of a plurality of battery cell groups in an electronic device between a series connection state and a parallel connection state. The power supply system is applied to an electronic device. The electronic device comprises at least two battery cell groups, an external interface, and a load, each battery cell group comprising at least one battery cell. The power supply system comprises a handover switch circuit and a buck switch circuit. The two electrodes of each battery cell group are respectively coupled to one input end of the handover switch circuit. A first output end of the handover switch circuit is coupled to an input end of the buck switch circuit, and a second output end of the handover switch circuit is coupled to an output end of the buck switch circuit. The input end of the buck switch circuit is coupled to the external interface. The output end of the buck switch circuit is further coupled to the load. The external interface is configured to connect to a charger.

Inventors:

WANG XINGHUA (CN)
WANG XIAOYANG (CN)
HUANG YUNCHUN (CN)

Application Number:

PCT/CN2021/119118

Publication Date:

July 07, 2022

Filing Date:

September 17, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HONOR DEVICE CO LTD (CN)

International Classes:

H02J7/00

Foreign References:

KR20200117817A	2020-10-14
CN105471001A	2016-04-06
CN108964184A	2018-12-07
CN105896670A	2016-08-24
CN111033933A	2020-04-17
CN202011603865A	2020-12-29

Other References: