公开(公告)号：JP2003153525A

公开(公告)日：2003-05-23

申请号：JP2002302131

申请日：2002-10-16

Applicant: ST MICROELECTRONICS SRL

Inventor： KHOURI OSAMA ,  PIERIN ANDREA ,  SOLTESZ DARIO ,  TORRELLI GUIDO

IPC: G11C5/14 ,  H02M3/07

Abstract: PROBLEM TO BE SOLVED: To reduce the power consumption both in an operation mode state and in a stand-by mode state. SOLUTION: A charge pump circuit, connected between a reference voltage line and an output terminal, has at least two circuit stages having respective charge pump circuit elements. The circuit stages are connected between the reference voltage line and the output terminal, respectively. Further, the charge pump circuit has a control circuit, connected between the output terminal and the control terminals of the respective two circuit stages. The charge pump circuit selects a proper combination of the circuit stages, according to the current absorbed by a load connected to the output terminal.

公开(公告)号：DE60134477D1

公开(公告)日：2008-07-31

申请号：DE60134477

申请日：2001-11-09

Applicant: ST MICROELECTRONICS SRL

Inventor： KHOURI OSAMA ,  SOLTESZ DARIO ,  PIERIN ANDREA ,  TORELLI GUIDO

IPC: G11C5/14 ,  H02M3/07

Abstract: A charge pump circuit, connected between a first voltage reference and an output terminal, comprises at least two stages consisting of an elementary charge pump circuit connected between said first voltage reference and said output terminal, and adjustment circuitry connected between said output terminal and respective control terminals of said at least two stages. This circuitry is arranged to select for actuation an appropriate combination of these elementary stages according to the current absorbed from a load connected to the output terminal.