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. 17, 1999
Filed:
Dec. 18, 1997
Applicant:
Inventor:
Bruce Lee Troutman, Meridian, ID (US);
Assignee:
Zilog, Inc., Campbell, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 60 ;
Abstract
The present invention of a low voltage charge pump circuitry divides a charge pump circuitry into separate subsections. Each of the separate subsections is composed of a plurality of diode pump units connected in series. In addition, each of the separate subsections has its own pumper clock having different high voltage level and different frequency. A novel clock level shifter circuit is designed to provide the subsequent subsection a clock signal having the elevated high voltage level.