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. 07, 1999
Filed:
Jul. 15, 1997
Applicant:
Inventors:
Naoki Itoh, Kanagawa-ken, JP;
Manabu Nakayama, Saga-ken, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
327432 ; 327483 ;
Abstract
An output circuit including an input inverting buffer circuit, and an output transistor circuit controlling a voltage of an output terminal by a current flowing therein. A control terminal of the output transistor is coupled to an output of the buffer circuit and to a current divider. The current divider is controlled by a voltage level of the output terminal and diverts current flowing from the output of the buffer circuit to the output transistor. The output circuit reduces overcurrent that flows at a rise of a voltage level of an output terminal, and thereby prevents a ground voltage level from floating up and noise from occurring.