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:
Nov. 28, 2017

Filed:

Jun. 29, 2016
Applicant:

Fairchild Korea Semiconductor Ltd., Bucheon-si, KR;

Inventors:

Chenghao Jin, Bucheon-si, KR;

SangCheol Moon, Daejeon, KR;

Bonggeun Chung, Incheon, KR;

Gwanbon Koo, Bucheon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); G01R 19/04 (2006.01); H02M 1/36 (2007.01); H02M 3/156 (2006.01); H02M 1/44 (2007.01); H02M 7/04 (2006.01); H02M 1/00 (2006.01); H02M 7/217 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); G01R 19/04 (2013.01); H02M 1/36 (2013.01); H02M 1/44 (2013.01); H02M 3/156 (2013.01); H02M 7/04 (2013.01); H02M 7/217 (2013.01); H02M 2001/0009 (2013.01);
Abstract

Provided is a buck converter. The converter includes a power switch configured to receive and switch an input voltage and convert the input voltage into an output voltage, and a switch control circuit configured to generate a signal having a frequency synchronized with the input voltage, compensate for the signal by using an edge threshold voltage in an edge area of the signal according to at least one of a load state and the input voltage, and control switching of the power switch by using a result of comparing the signal with a band voltage corresponding to the output.


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