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. 03, 2004
Filed:
Jan. 09, 2003
Applicant:
Inventor:
Masaya Nakano, Hyogo, JP;
Assignee:
Renesas Technology Corp., Tokyo, 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 voltage dividing circuit outputs a divided voltage of a maximum output voltage which can be driven by a boosting pump. A reference voltage generating circuit outputs a first reference voltage corresponding to a target level of a boosted voltage. A level selecting circuit compares the level of the divided voltage with that of the first reference voltage to select one of the voltages that has a lower voltage level. Then the selected voltage is supplied as a second reference voltage to a level sensing circuit.