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.:

US 9627901 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 18, 2017

Filed:

May. 26, 2015
Applicants:

Hong Fu Jin Precision Industry (Wuhan) Co., Ltd., Wuhan, CN;

Hon Hai Precision Industry Co., Ltd., New Taipei, TW;

Inventors:

Kai-Le Zhai, Wuhan, CN;

Chun-Sheng Chen, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); G06F 1/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0045 (2013.01); H02J 7/0036 (2013.01); H02J 7/0052 (2013.01);
Abstract

A charging circuit includes a power supply chipset, a charging port, and a detecting circuit. The power supply chipset includes an enable pin. A voltage on the enable pin controls the power supply chipset. The charging port includes a detecting pin which detects whether there is an electronic device connected on the charging port. The detecting circuit is connected between the detecting pin and the enable pin. The detecting circuit controls the voltage on the enable pin to cause the power supply chipset to output a charging voltage to the power supply chipset in event an electronic device that requires charging is connected to the charging port.


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