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. 09, 2005
Filed:
Jan. 15, 2002
Domenico Pappalardo, Gravina di Catania, IT;
Maurizio Gaibotti, Cesano Maderno, IT;
Gaetano Palumbo, Catania, IT;
Antonino Conte, Tremestieri Etneo, IT;
Stefano Lo Giudice, Catania, IT;
Domenico Pappalardo, Gravina di Catania, IT;
Maurizio Gaibotti, Cesano Maderno, IT;
Gaetano Palumbo, Catania, IT;
Antonino Conte, Tremestieri Etneo, IT;
Stefano Lo Giudice, Catania, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A variable charge pump contains several individual simple charge pumps, each with a pumping capacitor and a switching mechanism. Additionally, a switching network is coupled to the individual charge pumps so that the different lines in the charge pump can be connected together in a serial mode or parallel mode (or mixed serial and parallel modes) to match the needs of the output load. The switching network is easily changed to provide the necessary driving capability as the needs of the output load changes.