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:
Sep. 08, 2015
Filed:
Mar. 29, 2011
Jianliang Gu, Huizhou, CN;
Zhan Gu, Huizhou, CN;
Jianliang Gu, Huizhou, CN;
Zhan Gu, Huizhou, CN;
HUIZHOU TCL MOBILE COMMUNICATION CO., LTD., Huizhou, Guangdong Province, CN;
Abstract
The present disclosure provides a mobile terminal, which comprises a charging port, a power management unit (PMU), a battery, and a charging surge protection circuit disposed between the charging port and the PMU. The charging surge protection circuit comprises a low-pass filtering circuit, a switch control circuit, a diode and a first resistor. The low-pass filtering circuit has an input terminal connected to an output terminal of the charging port, and an output terminal connected to a first input terminal of the PMU. The switch control circuit has a first input terminal connected to the low-pass filtering circuit, a second input terminal connected to an output terminal of the PMU, and an output terminal connected to the first resistor via the diode. The first resistor is connected to an anode of the battery, and a cathode of the battery is grounded.