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. 14, 2018

Filed:

Nov. 29, 2016
Applicant:

Infineon Technologies Americas Corp., El Segundo, CA (US);

Inventors:

Amir Babazadeh, Laguna Hills, CA (US);

Venkat Sreenivas, Winchester, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/084 (2006.01); H02M 1/14 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 1/084 (2013.01); H02M 1/14 (2013.01); H02M 2001/0009 (2013.01);
Abstract

A semi-resonant voltage converter has a synchronous rectification (SR) switch through which a half-cycle sinusoidal-like current is conducted when turned on. An embodiment of a method of controlling operation of the semi-resonant voltage converter includes switching the SR switch and other switches of the semi-resonant voltage converter via a linear controller so as to supply output power to a load, the semi-resonant voltage converter having a DC gain that increases when load current increases, and scaling downward an output of the linear controller used to control the switching of the SR switch responsive to the load current exceeding a first threshold, so as to at least partly counteract an increase in the DC gain of the semi-resonant voltage converter. Other control adaptation methods are also described.


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