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:
Nov. 18, 2014
Filed:
Apr. 17, 2013
Applicant:
Fujitsu Semiconductor Limited, Yokohama, JP;
Inventors:
Kazuhiro Mitsuda, Nagoya, JP;
Shinji Miyata, Nagoya, JP;
Assignee:
Fujitsu Semiconductor Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/01 (2006.01); H03K 17/687 (2006.01); H03K 19/0175 (2006.01); G05F 3/20 (2006.01);
U.S. Cl.
CPC ...
H03K 17/687 (2013.01); H03K 19/017509 (2013.01); G05F 3/205 (2013.01);
Abstract
An output circuit includes a current source and a first MOS transistor coupled in series between a power supply terminal and an output terminal. The first MOS transistor includes a backgate coupled to a drain of the second MOS transistor. The second MOS transistor includes a source coupled to a source of a third MOS transistor. The second MOS transistor includes a source coupled to backgates of the second and third MOS transistors. The backgates of the second and third MOS transistors are in a floating condition.