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. 05, 2000
Filed:
Mar. 19, 1999
Applicant:
Inventor:
Haruyasu Fukui, Nara-ken, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ; G05F / ;
U.S. Cl.
CPC ...
327536 ; 327537 ;
Abstract
In a charge pump for providing a desired boosted output voltage, a plurality of boosting stages are connected in series. The pump also has a clock signal supply circuit for providing clock signals and a boost circuit for boosting the clock signals. Clock signals derived from the clock signal supply circuit are supplied to each of the boosting stages on a former side. In contrast, a boosted clock signal derived from the clock signal boost circuit and a clock signal derived from the clock signal supply circuit are supplied to each of the boosting stages on a latter side.