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.

Patent No.:

US 9455620 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 27, 2016

Filed:

Dec. 12, 2013
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Weifu Yu, Singapore, SG;

Yi Tang, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/12 (2006.01); H02M 1/14 (2006.01); H02M 7/217 (2006.01); H02M 1/42 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/12 (2013.01); H02M 1/4208 (2013.01); H02M 7/217 (2013.01); H02M 2001/0093 (2013.01); H02M 2001/4291 (2013.01); Y02B 70/126 (2013.01);
Abstract

Methods, devices, and circuits are disclosed for a buck-type AC/DC converter with DC output harmonic control. One example is directed to a AC/DC converter configured to generate a DC output at a target output voltage. The converter is configured to, responsive to an AC input voltage being less than the target output voltage, convert the AC input voltage to a boosted DC output voltage. The converter is further configured to, responsive to the AC input voltage being greater than the target output voltage, convert a first portion of the AC input voltage to a clamped boosted DC output voltage. The converter is further configured to buffer a second portion of the AC input voltage to a buffered DC voltage. The converter is further configured to apply the buffered DC voltage to the clamped boosted DC output voltage.


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