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:
Mar. 27, 2018

Filed:

Feb. 28, 2017
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Amir Babazadeh, Laguna Hills, CA (US);

Darryl Tschirhart, Torrance, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/14 (2006.01); H02M 1/08 (2006.01); H02M 1/00 (2006.01); H02M 1/16 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02M 1/08 (2013.01); H02M 1/14 (2013.01); H02M 1/16 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0054 (2013.01);
Abstract

Techniques are provided for controlling power switches that couple an input power source to a transformer within a voltage converter, in order to control the power transfer through the transformer and to a load of the voltage converter. Different techniques are provided for different operational modes. In an initial steady-state interval, the switches are switched using a fixed first switching period and variable duty cycle. Upon detecting a load transient, e.g., a sudden increase in the load power requirements, a ramp-up interval is entered during which the switches are switched using a second switching period and a second duty cycle, in order to increase the output current of the converter at a maximum rate. Upon detecting that a current within the voltage converter has reached a maximum allowed level, a current-limited interval is entered during which the switches are switched using a third switching period and a third duty cycle.


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