公开(公告)号：US20030174010A1

公开(公告)日：2003-09-18

申请号：US10371151

申请日：2003-02-21

Applicant: STMicroelectronics S.r.I.

Inventor： Domenico Pappalardo ,  Maurizio Gaibotti

IPC: G05F001/10

CPC classification number: H02M3/073

Abstract: The charge pump uses PMOS transistors for implementing the first and the second charge transfer switches of the charge pump. Substantially, the closing and opening of the first switch through which the first capacitor is charged, of the second switch for transferring the electric charge from the first capacitor to the load capacitance connected to the output node of the circuit and of the third switch for discharging to ground the load capacitance, are driven by a logic NOR gate. A first input of the NOR gate is connected to a common control node of the PMOS transistor forming the second switch and of a NMOS transistor forming the third switch, a second inverting input is connected to the output node, and the output is connected to the first capacitor.

Abstract translation: 电荷泵使用PMOS晶体管来实现电荷泵的第一和第二电荷转移开关。 基本上，将第一电容器充电的第一开关的闭合和打开用于将电荷从第一电容器转移到连接到电路的输出节点的负载电容的第二开关和用于放电的第三开关 接地负载电容，由逻辑或非门驱动。 NOR门的第一输入端连接到形成第二开关的PMOS晶体管和形成第三开关的NMOS晶体管的公共控制节点，第二反相输入端连接到输出节点，输出端连接到 第一个电容。

公开(公告)号：US20020163376A1

公开(公告)日：2002-11-07

申请号：US10050427

申请日：2002-01-15

Applicant: STMicroelectronics S.r.I.

Inventor： Domenico Pappalardo ,  Maurizio Gaibotti ,  Gaetano Palumbo ,  Antonino Conte ,  Stefano Lo Giudice

IPC: G05F001/10

CPC classification number: H02M3/07 ,  H02M2003/077

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.

Abstract translation: 可变电荷泵包含几个单独的简单电荷泵，每个具有泵浦电容器和开关机构。 此外，开关网络耦合到各个电荷泵，使得电荷泵中的不同线路可以以串行模式或并行模式（或混合串行和并行模式）连接在一起以匹配输出负载的需要。 随着输出负载的变化需要，开关网络容易改变以提供必要的驱动能力。