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. 14, 2015

Filed:

Jun. 22, 2011
Applicants:

Serban Mihai Popescu, San Carlos, CA (US);

Laszlo Lipcsei, Campbell, CA (US);

Marius Padure, Bucharest, RO;

Guoyong Guo, San Jose, CA (US);

Inventors:

Serban Mihai Popescu, San Carlos, CA (US);

Laszlo Lipcsei, Campbell, CA (US);

Marius Padure, Bucharest, RO;

Guoyong Guo, San Jose, CA (US);

Assignee:

O2Micro, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); H02M 3/156 (2006.01); H02M 1/32 (2007.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); H02M 1/32 (2013.01); H02M 2001/0025 (2013.01); H02M 2001/0029 (2013.01); H02M 2001/0032 (2013.01); Y02B 70/16 (2013.01);
Abstract

A converter circuit includes a converter and a controller. The converter converts an input voltage to an output voltage. The controller receives a reference voltage, generates a slew voltage having a substantially constant first slew rate if the reference voltage changes from a first level to a second level, and controls the converter based on the slew voltage to cause the output voltage to change from a third level to a fourth level at a substantially constant second slew rate.


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