公开(公告)号：WO2016167933A3

公开(公告)日：2016-11-24

申请号：PCT/US2016023883

申请日：2016-03-24

Applicant: QUALCOMM INC

Inventor： AMARILIO LIOR ,  AZIN MEYSAM ,  KHAZIN ALEXANDER ,  WANG LE

IPC: G06F13/42

CPC classification number: G06F1/10 ,  G06F1/06 ,  G06F13/4291

Abstract: Control circuits for generating output enable signals are disclosed. In one aspect, a control circuit is provided that employs combinatorial logic to generate an output enable signal that meets timing constraints using a standard clock signal, a feedback clock signal based on the standard clock signal, and a single data rate (SDR) data output stream. The control circuit includes a double data rate (DDR) conversion circuit configured to generate a DDR output stream based on a received SDR output stream. The control circuit includes an output enable circuit configured to receive the standard clock signal, feedback clock signal, and DDR output stream, and to generate the output enable signal that is asserted and de-asserted according to the defined timing constraints. The control circuit is configured to generate an accurately timed output enable signal without the need for a fast clock signal in addition to the standard clock signal.

Abstract translation: 公开了用于产生输出使能信号的控制电路。 在一个方面，提供了一种控制电路，其采用组合逻辑来产生使用标准时钟信号满足定时约束的输出使能信号，基于标准时钟信号的反馈时钟信号和单个数据速率（SDR）数据输出 流。 控制电路包括双数据速率（DDR）转换电路，配置为基于接收到的SDR输出流生成DDR输出流。 控制电路包括输出使能电路，其被配置为接收标准时钟信号，反馈时钟信号和DDR输出流，并且根据定义的时序约束生成被断言和解除断言的输出使能信号。 控制电路被配置为产生精确定时的输出使能信号，而不需要除了标准时钟信号之外的快速时钟信号。

公开(公告)号：WO2014062832A3

公开(公告)日：2014-09-04

申请号：PCT/US2013065285

申请日：2013-10-16

Applicant: QUALCOMM INC

Inventor： WANG LE ,  QUAN XIAOHONG ,  DHANASEKARAN VIJAYAKUMAR

IPC: H02M3/07 ,  H02M1/38 ,  H03K17/16

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。