CELL PROTECTION CIRCUIT AND ELECTRONIC DEVICE - GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

Title:

CELL PROTECTION CIRCUIT AND ELECTRONIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/181437

Kind Code:

A1

Abstract:

Provided in embodiments of the present application are a cell protection circuit and an electronic device. The circuit comprises: a control module, multi-level cell units connected in series, and N output interfaces, wherein a positive electrode of a first-level cell unit and a negative electrode of the last-level cell unit are each connected to one output interface, and a negative electrode of each upper-level cell unit and a positive electrode of lower-level cell units adjacent thereto are connected to the same output interface; a protection module is connected between at least one output interface among the N output interfaces and a cell unit connected thereto; the control module is connected to the protection modules and used for controlling the protection modules to turn off when an electrical signal on paths at which the protection modules are located is abnormal; and N is an integer greater than or equal to three. The technical solutions provided in the embodiments of the present application may achieve three or more output interfaces in the cell protection circuit, and implement charge and discharge protection for the cell on the basis of the output interfaces.

Inventors:

CHEN SHEBIAO (CN)
ZHANG JUN (CN)
ZHANG JIALIANG (CN)

Application Number:

PCT/CN2019/077555

Publication Date:

September 17, 2020

Filing Date:

March 08, 2019

Export Citation:

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Assignee:

GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)

International Classes:

H02H7/18

Foreign References:

CN204928304U	2015-12-30
CN203233151U	2013-10-09
CN106787116A	2017-05-31
US8861150B2	2014-10-14

Other References: