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. 01, 2013
Filed:
Mar. 20, 2012
Applicant:
Minoru Sudo, Chiba, JP;
Inventor:
Minoru Sudo, Chiba, JP;
Assignee:
Seiko Instruments Inc., Chiba, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/635 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a voltage regulator capable of preventing a large current from flowing even when a battery () is connected with reverse polarity by mistake. The voltage regulator employs a circuit configuration in which a substrate potential (n-well) of an output transistor () of the voltage regulator is not fixed to a potential of a VDD terminal, and a power supply of a reference voltage circuit () and an error amplifier () is not fixed to the VDD terminal.