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. 24, 2015

Filed:

Apr. 15, 2011
Applicants:

Kazuyoshi Futamura, Yokohama, JP;

Takashi Matsumoto, Yokohama, JP;

Ryuta Nagai, Kasugai, JP;

Inventors:

Kazuyoshi Futamura, Yokohama, JP;

Takashi Matsumoto, Yokohama, JP;

Ryuta Nagai, Kasugai, JP;

Assignee:

Spansion LLC, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/59 (2006.01); H02M 3/156 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); H02M 3/1588 (2013.01); H02M 2001/0032 (2013.01); Y02B 70/1466 (2013.01); Y02B 70/16 (2013.01);
Abstract

A control circuit for controlling a power supply including a first switch and a second switch coupled in series between a first potential and a second potential. The control circuit includes a detection circuit that detects a magnitude relation of a voltage value at a node between the first and second switches and a reference value during a period in which the first switch and the second switch are inactivated. The detection circuit generates a control signal corresponding to the magnitude relation. A regulation circuit regulates a switching timing of the second switch in response to the control signal to decrease a difference between the voltage value at the node and the reference value.


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