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:
Sep. 06, 2011
Filed:
Sep. 24, 2008
Applicants:
Kazuhiko Yamada, Tokyo, JP;
Shigemitsu Horikawa, Saitama, JP;
Inventors:
Kazuhiko Yamada, Tokyo, JP;
Shigemitsu Horikawa, Saitama, JP;
Assignee:
Oki Semiconductor Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); G05F 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage control circuit accepts an input voltage and produces a regulated output voltage. Embodiments provide improved responsiveness to variations in input voltage, load current, and ambient temperature. Exemplary embodiments include an NPN transistor connected between the input and output terminals, which is controlled by a feedback circuit. In an embodiment, the feedback circuit includes a PMOS transistor and in another embodiment the feedback circuit includes a PNP transistor.