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. 30, 2003
Filed:
Nov. 16, 2001
Applicant:
Inventors:
Masataka Kondo, Takatsuki, JP;
Kiyoto Ohta, Takatsuki, JP;
Yuji Yamasaki, Mishima-gun, JP;
Toshikazu Suzuki, Nishinomiya, JP;
Masanobu Hirose, Kameoka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/10 ; G05F 3/02 ;
U.S. Cl.
CPC ...
G05F 1/10 ; G05F 3/02 ;
Abstract
A semiconductor integrated circuit includes a functional circuit and a power source voltage generating circuit used for operating the functional circuit. In the power source voltage generating circuit, output stage transistors are driven by comparing a plurality of reference voltages produced by a plurality of resistors connected in series to one another with output voltages of a plurality of differential amplifiers connected in parallel to one another and varying gate voltages.