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:
Jul. 21, 2020

Filed:

Jan. 05, 2017
Applicant:

Dialog Semiconductor Inc., Campbell, CA (US);

Inventors:

Guang Feng, Campbell, CA (US);

Pengju Kong, Campbell, CA (US);

Juyoung Yoon, Campbell, CA (US);

Assignee:

DIALOG SEMICONDUCTOR INC., Campbell, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/08 (2006.01); H02M 3/335 (2006.01); H02M 1/32 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33515 (2013.01); H02M 1/08 (2013.01); H02M 1/32 (2013.01); H02M 3/33507 (2013.01); H02M 2001/0009 (2013.01);
Abstract

Systems, devices, and methods are provided to enable power converters to use two or more sensing elements to reliably detect a short circuit (or soft-short circuit) existing in the power converter and distinguish these conditions from other operating conditions, such as low voltage conditions or normal operating conditions. The disclosed embodiments enable the accurate detection of fault conditions, such as short circuits or soft short conditions, using a number of sensing elements, such as sense resistors and the inherent resistance of switching devices, while preventing the detection of false positives due to other factors such as low input voltage.


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