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:
Nov. 12, 2019

Filed:

Oct. 22, 2018
Applicant:

Richtek Technology Corporation, Zhubei, Hsinchu, TW;

Inventors:

Yi-Min Shiu, Hsinchu, TW;

Isaac Y. Chen, Zhubei, TW;

Assignee:

RICHTEK TECHNOLOGY CORPORATION, Chupei, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02M 3/156 (2006.01); H02M 7/217 (2006.01); H02H 7/10 (2006.01); H02M 3/335 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02M 3/156 (2013.01); H02M 7/217 (2013.01); H02H 7/10 (2013.01); H02M 3/33523 (2013.01); H02M 2001/0012 (2013.01); H02M 2001/0025 (2013.01);
Abstract

The present invention discloses a short circuit and/or bad connection detection method for use in a power supply system. The power supply system includes a power converter which converts an input voltage to an output voltage and supplies an output current to an electronic device. In the short circuit detection method, the conversion from the input voltage to the output voltage is disabled in a disable time period, and whether a short circuit occurs is determined according to the decreasing speed of the output voltage. In the bad connection detection method, an actual voltage and an actual current received by the electronic device are compared with the output voltage and the output current, to determine whether a bad connection occurs.


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