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:
Feb. 24, 2009
Filed:
Apr. 03, 2006
Applicants:
Jonathan Knight, Tokyo, JP;
Jayendar Rajagopalan, Newcastle, WA (US);
Inventors:
Jonathan Knight, Tokyo, JP;
Jayendar Rajagopalan, Newcastle, WA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/618 (2006.01); G05F 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
A current-mode switching regulator is provided. In one embodiment, the regulator is a multi-mode buck-boost regulator that operates as follows. When the operating mode changes, a gain associated with the inner current loop changes, and the loop compensation changes. The inner current loop gain and the loop compensation are adjusted when the operating mode changes such that the post-mode change feedback variable values are roughly the same as the pre-mode change feedback variables values.