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Patent Searching and Data


Title:
CONTROL CIRCUIT OF CHARGING INTERFACE, AND CHARGER
Document Type and Number:
WIPO Patent Application WO/2021/051984
Kind Code:
A1
Abstract:
Provided are a control circuit of a charging interface, and a charger, wherein same relate to the technical field of terminal devices. The control circuit is applied to a charger, and comprises: a controller, a voltage detection circuit, and a switch, wherein a first end of the voltage detection circuit is connected to a data terminal of a charging interface of the charger; a second end of the voltage detection circuit is connected to the controller; the voltage detection circuit is used for detecting the voltage of the data terminal of the charging interface, and sending the voltage to the controller; a first end of the switch is connected to a first power source terminal of the charging interface, and a second end of the switch is connected to a power source of the charger; a control terminal of the switch is connected to the controller; and the controller is used for controlling, when the voltage exceeds a voltage threshold value, the switch to be disconnected. By means of using the control circuit of a charging interface provided in the present application, a charging interface of a charger can be prevented from being corroded when water accidentally enters the charging interface, thereby improving the safety of a charging process of an electronic device.

Inventors:
KUANG HUOGEN (CN)
GUO XIN (CN)
XIONG HUI (CN)
Application Number:
PCT/CN2020/102287
Publication Date:
March 25, 2021
Filing Date:
July 16, 2020
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
CN105826894A2016-08-03
CN105826894A2016-08-03
CN202042887U2011-11-16
CN108092370A2018-05-29
CN205791636U2016-12-07
US20130031398A12013-01-31
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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