The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
May. 13, 2020
Huawei Technologies Co., Ltd., Guangdong, CN;
Xilin Wang, Dongguan, CN;
HUAWEI TECHNOLOGIES CO., LTD., Guangdong, CN;
Abstract
A charging apparatus is disclosed, the apparatus includes a charging circuit including a first voltage conversion circuit configured to convert an alternating current voltage into a first direct current voltage and a switch; a current leakage detection circuit including a second voltage conversion circuit configured to convert the first direct current voltage into a second direct current voltage that does not trigger charging of an electronic device, and the current leakage detection circuit is configured to: detect whether current leakage occurs between a voltage output end and the ground, and output a result at the voltage output end; an in-position detection circuit configured to detect whether the electronic device is in position; and a control circuit configured to: when no current leakage occurs and the electronic device is in position, close the switch, and when it is not in-position, open the switch to prevent the charging.