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:
Oct. 06, 2009
Filed:
Dec. 04, 2006
Applicant:
Toshiyuki Tsuzaki, Chiba, JP;
Inventor:
Toshiyuki Tsuzaki, Chiba, JP;
Assignee:
Seiko Instruments Inc., Chiba, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a switching regulator having an improved power supply voltage variation response characteristic while maintaining the stability of an output voltage to oscillation. An output resistance of an error amplifier is adjusted by a power supply voltage variation response improving circuit to allow a gain of the error amplifier to change.