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:
Dec. 03, 2019
Filed:
Mar. 13, 2019
Applicant:
Ablic Inc., Chiba, JP;
Inventor:
Kaoru Sakaguchi, Chiba, JP;
Assignee:
ABLIC Inc., Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01); G05F 1/575 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); H03F 3/45269 (2013.01); H03F 3/45273 (2013.01);
Abstract
A voltage regulator includes an error amplifier, and the error amplifier includes a differential pair constituted by a pair of transistors, a current adjustment circuit that provides a bias current proportional to an output current supplied from an output transistor to the differential pair, a source output circuit and a sink output circuit that provide a current based on a current flowing through the differential pair to an output terminal of the error amplifier, and a phase compensation circuit that controls a current of the sink output circuit based on a current of the current adjustment circuit.