公开(公告)号：US20100097101A1

公开(公告)日：2010-04-22

申请号：US12642651

申请日：2009-12-18

申请人： Lew G. Chua-Eoan ,  Matthew Levi Severson ,  Sorin Adrian Dobre ,  Tsvetomir P. Petrov ,  Rajat Goel

发明人： Lew G. Chua-Eoan ,  Matthew Levi Severson ,  Sorin Adrian Dobre ,  Tsvetomir P. Petrov ,  Rajat Goel

IPC分类号： H03K19/0175

CPC分类号： G06F1/3203 ,  G06F1/3287 ,  Y02D10/171

摘要： An integrated circuit includes multiple power domains. Supply current switch circuits (SCSCs) are distributed across each power domain. When a signal is present on a control node within a SCSC, the SCSC couples a local supply bus of the power domain to a global supply bus. An enable signal path extends through the SCSCs so that an enable signal can be propagated down a chain of SCSCs from control node to control node, thereby turning the SCSCs on one by one. When the domain is to be powered up, a control circuit asserts an enable signal that propagates down a first chain of SCSCs. After a programmable amount of time, the control circuit asserts a second enable signal that propagates down a second chain. By spreading the turning on of SCSCs over time, large currents that would otherwise be associated with coupling the local and global buses together are avoided.

摘要翻译： 集成电路包括多个电源域。 电源电流开关电路（SCSC）分布在每个电源域上。 当SCSC中的控制节点上存在信号时，SCSC将电源域的本地电源总线耦合到全局电源总线。 使能信号路径延伸穿过SCSC，使得使能信号可以从SCSC链从传播控制节点传播到控制节点，从而逐个转换SCSC。 当域要加电时，控制电路断言使第一链SCSC向下传播的使能信号。 在可编程的时间量之后，控制电路断言向下传播第二链的第二使能信号。 通过随着时间推移SCSC的接通，避免了将局部和全局总线连接在一起的大电流。

公开(公告)号：US07659746B2

公开(公告)日：2010-02-09

申请号：US11228912

申请日：2005-09-16

申请人： Lew G. Chua-Eoan ,  Matthew Levi Severson ,  Sorin Adrian Dobre ,  Tsvetomir P. Petrov ,  Rajat Goel

发明人： Lew G. Chua-Eoan ,  Matthew Levi Severson ,  Sorin Adrian Dobre ,  Tsvetomir P. Petrov ,  Rajat Goel

IPC分类号： H03K19/0175 ,  H03K19/094

CPC分类号： G06F1/3203 ,  G06F1/3287 ,  Y02D10/171

摘要： An integrated circuit includes multiple power domains. Supply current switch circuits (SCSCs) are distributed across each power domain. When a signal is present on a control node within a SCSC, the SCSC couples a local supply bus of the power domain to a global supply bus. An enable signal path extends through the SCSCs so that an enable signal can be propagated down a chain of SCSCs from control node to control node, thereby turning the SCSCs on one by one. When the domain is to be powered up, a control circuit asserts an enable signal that propagates down a first chain of SCSCs. After a programmable amount of time, the control circuit asserts a second enable signal that propagates down a second chain. By spreading the turning on of SCSCs over time, large currents that would otherwise be associated with coupling the local and global buses together are avoided.

摘要翻译： 集成电路包括多个电源域。 电源电流开关电路（SCSC）分布在每个电源域上。 当SCSC中的控制节点上存在信号时，SCSC将电源域的本地电源总线耦合到全局电源总线。 使能信号路径延伸穿过SCSC，使得使能信号可以从SCSC链从传播控制节点传播到控制节点，从而逐个转换SCSC。 当域要加电时，控制电路断言使第一链SCSC向下传播的使能信号。 在可编程的时间量之后，控制电路断言向下传播第二链的第二使能信号。 通过随着时间推移SCSC的接通，避免了将局部和全局总线连接在一起的大电流。

公开(公告)号：US07279926B2

公开(公告)日：2007-10-09

申请号：US10856526

申请日：2004-05-27

申请人： Matthew Levi Severson ,  Chih-tung Chen ,  Geoffrey Shippee ,  Sorin Dobre

发明人： Matthew Levi Severson ,  Chih-tung Chen ,  Geoffrey Shippee ,  Sorin Dobre

IPC分类号： H03K19/23

CPC分类号： H03K19/0016

摘要： In general, this disclosure is directed to circuitry for implementation of headswitches and footswitches in an ASIC for power management. The disclosed circuitry supports not only effective power management, but also efficient use of ASIC area, reduced complexity, and the use of electronic design automation (EDA) tools. In this manner, the disclosed circuitry can support enhanced performance and simplified ASIC design. In some cases, headswitch or footswitch circuitry may be implemented as a switch pad ring that extends around a hard macro forming part of an ASIC core. In other cases, headswitch or footswitch circuitry can be distributed within an ASIC core by embedding distributed headswitch or footswitch components under metal layer power routing coupled to standard cell rows.

摘要翻译： 通常，本公开涉及用于在用于电力管理的ASIC中实现头戴式开关和脚踏开关的电路。 所公开的电路不仅支持有效的电源管理，而且还有效地利用ASIC区域，降低复杂性以及使用电子设计自动化（EDA）工具。 以这种方式，所公开的电路可以支持增强的性能和简化的ASIC设计。 在一些情况下，头开关或脚踏开关电路可以实现为围绕形成ASIC核心的一部分的宏宏延伸的开关板环。 在其他情况下，通过将耦合到标准单元行的金属层功率路由嵌入分布式头部开关或脚踏开关组件，可将头开关或脚踏开关电路分布在ASIC内部。

公开(公告)号：US07583555B2

公开(公告)日：2009-09-01

申请号：US10814935

申请日：2004-03-30

申请人： Inyup Kang ,  Karthikeyan Ethirajan ,  Matthew Levi Severson ,  Mohamed Elgebaly ,  Manoj Sachdev ,  Amr Fahim

发明人： Inyup Kang ,  Karthikeyan Ethirajan ,  Matthew Levi Severson ,  Mohamed Elgebaly ,  Manoj Sachdev ,  Amr Fahim

IPC分类号： G11C7/00 ,  G05F1/40

CPC分类号： G05F1/40 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

摘要： A method and apparatus for voltage regulation uses, in one aspect, worst-case supply voltages specific to the process split of the integrated device at issue. In another aspect, a two-phase voltage regulation system and method identifies the characterization data pertinent to a family of integrated circuit devices in a first phase, and identifies an associated process split of a candidate integrated circuit device in a second phase. The characterization data from the first phase is then used to provide supply voltages that correspond to target frequencies of operation for the candidate device. In another aspect, a hybrid voltage regulator circuit includes an open loop circuit which automatically identifies the process split of the integrated circuit device and allows a regulator to modify supply voltage based on characterization data specific to that process split, and a closed loop circuit which fine-tunes the supply voltage. In one embodiment, the closed-loop circuit includes a critical path replica for providing estimated frequencies of operation necessary for a critical path in the integrated circuit device. A ring oscillator circuit may be used in one embodiment in the critical path and/or in the open loop circuit.

摘要翻译： 一方面，用于电压调节的方法和装置在一个方面使用特定于所讨论的集成器件的工艺分裂的最坏情况的电源电压。 在另一方面，两相电压调节系统和方法识别与第一阶段中的集成电路器件系列相关的特征数据，并且识别在第二阶段中候选集成电路器件的相关联的工艺分组。 然后使用来自第一阶段的表征数据来提供对应于候选设备的目标操作频率的电源电压。 另一方面，混合电压调节器电路包括开环电路，其自动识别集成电路器件的工艺分离，并且允许调节器基于该工艺分离特有的特性数据修改供电电压，以及闭环电路 调节电源电压。 在一个实施例中，闭环电路包括关键路径副本，用于提供集成电路设备中的关键路径所需的估计工作频率。 在一个实施例中，在关键路径和/或开环电路中可以使用环形振荡器电路。