Title:
CHARGING CIRCUIT, ELECTRONIC DEVICE, CHARGING SYSTEM, AND REVERSE CHARGING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/027208
Kind Code:
A9
Abstract:
The embodiments of the present application provide a charging circuit, an electronic device, a charging system, and a reverse charging method, relate to the technical field of circuits, and allow an electronic device in a powered-on state to supply electricity to any external device, no longer limited by PD protocol. The charging circuit comprises a control module, a charging protocol module, a first power supply module, a second power supply module, a first switch module, a wired external interface and a pull-up module; the wired external interface comprises a first pin and a second pin; the pull-up module provides a first level signal to a first node; when the first node changes from the first level signal to a second level signal, the second power supply module supplies electricity to the control module and the charging protocol module; when the second power supply module supplies electricity to the charging protocol module, the charging protocol module identifies whether a charging cable is inserted into the wired external interface, and when a charging cable is inserted, the second power supply module controls the first switch module to be switched on, so as to cause the first power supply module to supply electricity via the charging cable to an external device to be charged.
Inventors:
QIN HENGLIANG (CN)
Application Number:
PCT/CN2023/089380
Publication Date:
March 28, 2024
Filing Date:
April 20, 2023
Export Citation:
Assignee:
HONOR DEVICE CO LTD (CN)
International Classes:
H02J7/00; H01M10/44
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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