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:
Aug. 06, 2013
Filed:
Dec. 15, 2009
Applicant:
Takashi Imura, Chiba, JP;
Inventor:
Takashi Imura, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/40 (2006.01); H02H 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage regulator has an output transistor that outputs an output voltage. A first circuit controls a control terminal voltage to increase the output voltage when an undershoot has occurred in the output voltage. A second circuit controls the control terminal voltage to prevent an output current from exceeding an overcurrent when the output current becomes the overcurrent, and disables the first circuit when the output current is prevented from exceeding the overcurrent so that the first circuit does not control the control terminal voltage to increase the output voltage.