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.

Date of Patent:
Jan. 30, 2018

Filed:

Sep. 17, 2015
Applicant:

Asustek Computer Inc., Taipei, TW;

Inventors:

Xiao-Feng Zhou, Taipei, TW;

Wei Han, Taipei, TW;

Ching-Ji Liang, Taipei, TW;

Assignee:

ASUSTeK COMPUTER INC., Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 41/36 (2006.01); G05F 1/46 (2006.01); H05B 33/08 (2006.01); H02M 3/335 (2006.01); H02H 9/00 (2006.01); H02H 3/20 (2006.01);
U.S. Cl.
CPC ...
H02H 9/001 (2013.01); H02H 3/207 (2013.01);
Abstract

An electronic device and a power protection method are provided. The electronic device includes a transfer port, a switch, a first detecting unit and a second detecting unit. The transfer port provides a driving voltage to an external device. The switch is coupled between the transfer port and a supply power source, and the switch is selectively turned off according to at least one of a first control signal and a second control signal. The first detecting unit generates the first control signal when a voltage drop of the driving voltage exceeds a threshold voltage. The second detecting unit generates a sampling voltage by detecting the driving voltage and generates the second control signal when the sampling voltage is lower than a first reference voltage. The electronic device can provide a power protection when an external device is plugged in/out the transfer port.


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