公开(公告)号：US20140103897A1

公开(公告)日：2014-04-17

申请号：US13654341

申请日：2012-10-17

Applicant: QUALCOMM INCORPORATED

Inventor： Le Wang ,  Xiaohong Quan ,  Vijayakumar Dhanasekaran ,  Omid Shoaei

IPC: G05F3/08

CPC classification number: H02M3/07 ,  H02M1/38 ,  H02M2001/0029 ,  H03K17/162 ,  H03K17/164

Abstract: Exemplary embodiments are directed to devices and method for operating a charge pump. A method may include activating a first switch coupled between a capacitor and a ground voltage over a first period of a charging phase. The first period may coincide with a non-overlapping time between the charging phase and an output phase. The method may also include activating a second switch coupled between the capacitor and an input voltage over a second period of the charging phase, wherein the first period begins prior to the second period. Further, the method may include deactivating the second switch over a third period of the charging phase and deactivating the first switch over a fourth period of the charging phase, wherein the third period begins prior to the fourth period.

Abstract translation: 示例性实施例涉及用于操作电荷泵的装置和方法。 一种方法可以包括在充电阶段的第一周期上激活耦合在电容器和接地电压之间的第一开关。 第一周期可以与充电阶段和输出阶段之间的非重叠时间重合。 该方法还可以包括在充电阶段的第二周期内激活耦合在电容器和输入电压之间的第二开关，其中第一周期在第二周期之前开始。 此外，该方法可以包括在充电阶段的第三周期内去激活第二开关，并且在充电阶段的第四周期上去激活第一开关，其中第三周期在第四周期之前开始。