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. 14, 2001
Filed:
Jan. 29, 1999
Andrea Ghilardelli, Cinisello Balsamo, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
An integrated electronic device having a first charge pump, intended to drive a first line having a high capacitive load, and a second charge pump having a high current pumping capacity and intended to drive a second line, a controlled switch is interposed between the outputs of the two pumps, such as to connect the output of the high current capacity pump to the first line, to charge the first line quickly to the preset voltage, without the first charge pump being oversized. When the voltage present on the first line becomes greater than the voltage at the output of the second charge pump, owing to the current required by the second line, the switch is opened. A common phase generator which drives both the pumps is also provided.