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:
Aug. 25, 2020

Filed:

Aug. 28, 2018
Applicant:

Asustek Computer Inc., Taipei, TW;

Inventors:

Wei-Bo Hu, Taipei, TW;

Zhao-Long Dong, Taipei, TW;

Ching-Ji Liang, Taipei, TW;

Assignee:

ASUSTEK COMPUTER INC., Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/32 (2007.01); H02M 1/38 (2007.01); G05F 1/10 (2006.01); H02M 3/335 (2006.01); H02M 1/08 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); G05F 1/10 (2013.01); H02M 1/08 (2013.01); H02M 1/32 (2013.01); H02M 1/38 (2013.01); H02M 3/33507 (2013.01); H02M 2001/0006 (2013.01);
Abstract

A power conversion circuit includes a voltage regulator circuit and a detection circuit. The voltage regulator circuit includes a first switch and a second switch. A first end of the first switch receives an input voltage, and a control end of the first switch receives a first drive signal. The second switch is coupled between a second end of the first switch and the ground, and is turned on or off based on a second drive signal. The first switch and the second switch regulate the input voltage to output an output voltage. The detection circuit is configured to determine whether the first switch is short-circuited or not based on a voltage level of at least one of the first end, the second end, or the control end of the first switch, and adjust the second drive signal when the first switch is short-circuited, to turn on the second switch.


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