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.:
Date of Patent:
Jan. 12, 2016
Filed:
May. 11, 2005
Applicant:
Atsuo Fukui, Chiba, JP;
Inventor:
Atsuo Fukui, Chiba, JP;
Assignee:
SEIKO INSTRUMENTS INC., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01); H02H 7/12 (2006.01); H02M 3/156 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02H 7/1213 (2013.01); H02M 3/156 (2013.01); H02M 2001/0025 (2013.01);
Abstract
Provided is a current mode step-down switching regulator which is capable of enhancing over-current limiting characteristics even when an over-current limiting function operates to reduce an output voltage. The current mode step-down switching regulator includes a pulse adjusting circuit. When an over-current is detected, a switching output signal is thinned out by the pulse adjusting circuit to be outputted in order to reduce an apparent oscillation frequency, thereby reducing an influence by response delay in an over-current detecting comparator.