公开(公告)号：US20160239060A1

公开(公告)日：2016-08-18

申请号：US14622467

申请日：2015-02-13

Applicant: QUALCOMM Incorporated

Inventor： Christopher Edward Koob ,  Xufeng Chen ,  Robert Allan Lester ,  Manojkumar Pyla ,  Peixin Zhong

IPC: G06F1/26

CPC classification number: G06F1/26 ,  G06F1/3237 ,  G06F1/3287 ,  H03K19/0016 ,  Y02D10/128 ,  Y02D10/171

Abstract: The feature size of semiconductor devices continues to decrease in each new generation. Smaller channel lengths lead to increased leakage currents. To reduce leakage current, some power domains within a device may be powered off (e.g., power collapsed) during periods of inactivity. However, when power is returned to the collapsed domains, circuitry in other power domains may experience significant processing overhead associated with reconfiguring communication channels to the newly powered domains. Provided in the present disclosure are exemplary techniques for isolating power domains to promote flexible power collapse while better managing the processing overhead associated with reestablishing data connections.

Abstract translation: 半导体器件的特征尺寸在每一代新一代继续下降。 较小的通道长度导致泄漏电流增加。 为了减少泄漏电流，在不活动期间，器件内部的一些电源域可能被断电（例如，电源崩溃）。 然而，当电力返回到折叠域时，其他电力域中的电路可能经历与重新配置到新供电域的通信信道相关联的显着处理开销。 在本公开中提供的是用于隔离功率域以促进柔性功率崩溃的示例性技术，同时更好地管理与重新建立数据连接相关联的处理开销。

公开(公告)号：US20140266103A1

公开(公告)日：2014-09-18

申请号：US13843121

申请日：2013-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Yuhe Wang ,  Marzio Pedrali-Noy ,  Xuhao Huang ,  Martin Saint-Laurent ,  Xufeng Chen

IPC: G05F1/46

CPC classification number: G05F1/462 ,  G05F1/565 ,  G05F1/575

Abstract: Techniques are described that embed a digital assisted regulator with an LDO regulator on a chip without requiring a capacitor external to the chip and to regulate a voltage without undershoot. The digital assisted regulator responds to information regarding operation of the LDO regulator and to a signal that provides advance notification of a load change. When the advance notification signal is received, the digital assisted regulator pulls a circuit's supply voltage up to a chip's incoming supply voltage. When the correct operating voltage has been reached and any undershoot problem removed, the digital assisted regulator balances the current it provides with the current provided by the LDO regulator, to allow a quick response time for other load changes. Also, bandwidth of an LDO regulator may be expanded by use of an advance notice signal to increase bias current of an LDO output device to meet an upcoming load change.

Abstract translation: 描述了将芯片上的LDO调节器嵌入数字辅助调节器的技术，而不需要芯片外部的电容器并且调节电压而不会下冲。 数字辅助稳压器响应关于LDO调节器的操作的信息以及提供负载变化的提前通知的信号。 当接收到提前通知信号时，数字辅助调节器将电路的电源电压提升到芯片的输入电源电压。 当达到正确的工作电压并消除任何下冲问题时，数字辅助调节器将其提供的电流与LDO调节器提供的电流平衡，以允许其他负载变化的快速响应时间。 此外，LDO调节器的带宽可以通过使用提前通知信号来扩展，以增加LDO输出设备的偏置电流以满足即将到来的负载变化。

公开(公告)号：US09785211B2

公开(公告)日：2017-10-10

申请号：US14622467

申请日：2015-02-13

Applicant: QUALCOMM Incorporated

Inventor： Christopher Edward Koob ,  Xufeng Chen ,  Robert Allan Lester ,  Manojkumar Pyla ,  Peixin Zhong

IPC: G06F1/26 ,  G06F1/32 ,  H03K19/00

CPC classification number: G06F1/26 ,  G06F1/3237 ,  G06F1/3287 ,  H03K19/0016 ,  Y02D10/128 ,  Y02D10/171

Abstract: The feature size of semiconductor devices continues to decrease in each new generation. Smaller channel lengths lead to increased leakage currents. To reduce leakage current, some power domains within a device may be powered off (e.g., power collapsed) during periods of inactivity. However, when power is returned to the collapsed domains, circuitry in other power domains may experience significant processing overhead associated with reconfiguring communication channels to the newly powered domains. Provided in the present disclosure are exemplary techniques for isolating power domains to promote flexible power collapse while better managing the processing overhead associated with reestablishing data connections.