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. 15, 2022

Filed:

Sep. 06, 2018
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Benjamim Tang, Rancho Palos Verdes, CA (US);

Hongying Ding, Redondo Beach, CA (US);

Sue Perranoski, Rancho Palos Verdes, CA (US);

Richard Pierson, Newport Beach, CA (US);

Darryl Tschirhart, Cambridge, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02H 7/125 (2006.01); H02M 3/335 (2006.01); H02H 7/12 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02H 7/1252 (2013.01); H02M 3/33546 (2013.01); H02M 3/33569 (2013.01); H02H 7/1213 (2013.01); H02H 7/1255 (2013.01); H02M 3/33576 (2013.01); H02M 3/33592 (2013.01);
Abstract

An isolated switched-mode power converter converts power from an input source into power for an output load. Power switches within a primary-side power stage control the amount of power input to the power converter and, ultimately, provided to the output load. A digital controller on the secondary side of the power converter generates signals to control the power switches. This controller also senses a rectified voltage on the secondary side of the power converter and uses this sensed voltage to detect fault conditions of the primary side. For example, the sensed rectified voltage is used to detect undervoltage or overvoltage conditions of the input power source of the power converter, or faulty power switches within the primary-side power stage.


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