公开(公告)号：US09541603B2

公开(公告)日：2017-01-10

申请号：US13938901

申请日：2013-07-10

Applicant: Apple Inc.

Inventor： Brian S. Park ,  Patrick D. McNamara ,  Kwang M. Lee ,  Meng C. Chong ,  Geertjan Joordens ,  Raman S. Thiara ,  Anh T. Hoang ,  John P. Gonzalez

IPC: G01R31/00 ,  G01R31/317 ,  G01R19/165 ,  G06F1/28 ,  G01R31/3181

CPC classification number: G01R31/31721 ,  G01R19/16552 ,  G01R31/31816 ,  G06F1/28

Abstract: A method and apparatus for power glitch detection in IC's is disclosed. In one embodiment, a method includes a detection circuit in an IC detecting a voltage transient wherein a value of a supply voltage has at least momentarily fallen below a reference voltage value. Responsive thereto, the detection circuit may cause a logic value to be stored in a register indicating that the detection circuit has detected the supply voltage falling below the reference voltage. The IC may include a number of detection circuits coupled to the register, each of which may provide a corresponding indication of detecting the supply voltage falling below the reference voltage. The detection circuits may be placed at different locations, and thus reading the register may yield information indicating the locations where, if any, such voltage transients occurred.

Abstract translation: 公开了一种用于IC中电源故障检测的方法和装置。 在一个实施例中，一种方法包括检测电压瞬变的IC中的检测电路，其中电源电压的值至少暂时低于参考电压值。 响应于此，检测电路可以使逻辑值存储在指示检测电路已经检测到低于参考电压的电源电压的寄存器中。 IC可以包括耦合到寄存器的多个检测电路，每个检测电路可以提供检测低于参考电压的电源电压的相应指示。 检测电路可以放置在不同的位置，因此读取寄存器可以产生指示出现这种电压瞬变的位置（如果有的话）的信息。

公开(公告)号：US09395775B2

公开(公告)日：2016-07-19

申请号：US13925950

申请日：2013-06-25

Applicant: Apple Inc.

Inventor： Toshinari Takayanagi ,  Jung Wook Cho ,  Patrick D. McNamara

IPC: G06F1/26 ,  G06F1/32

CPC classification number: G06F1/324 ,  G06F1/26 ,  G06F1/266 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

Abstract: A system for managing changes in current demand, including one or more processors, a memory coupled to at least one of the processors, a clock generation circuit coupled to the memory and configured to output a clock, one or more functional blocks, a power supply, configured to output a plurality of voltage levels, and a power management unit. The power management unit may be configured to set the power supply output to a first voltage level and then detect indications of an impending change in current demand within the SoC. If an indication of an impending change in current demand is detected, then the power management unit may be configured to adjust the power supply output to a second voltage level. After determining the impending change in current demand has occurred, the power management unit may be configured to adjust the power supply output back to the first voltage level.

Abstract translation: 一种用于管理当前需求的变化的系统，包括一个或多个处理器，耦合到至少一个处理器的存储器，时钟生成电路，其耦合到存储器并被配置为输出时钟，一个或多个功能块，电源 ，被配置为输出多个电压电平，以及电源管理单元。 功率管理单元可以被配置为将电源输出设置为第一电压电平，然后检测SoC内当前需求即将发生变化的指示。 如果检测到当前需求即将发生变化的指示，则电源管理单元可以被配置为将电源输出调整到第二电压电平。 在确定了当前需求即将发生变化之后，电源管理单元可被配置为将电源输出调整回到第一电压电平。

公开(公告)号：US11079831B2

公开(公告)日：2021-08-03

申请号：US16363762

申请日：2019-03-25

Applicant: Apple Inc.

Inventor： Toshinari Takayanagi ,  Jung Wook Cho ,  Patrick D. McNamara

IPC: G06F1/324 ,  G06F1/26 ,  G06F1/3296

Abstract: A system for managing changes in current demand, including one or more processors, a memory coupled to at least one of the processors, a clock generation circuit coupled to the memory and configured to output a clock, one or more functional blocks, a power supply, configured to output a plurality of voltage levels, and a power management unit. The power management unit may be configured to set the power supply output to a first voltage level and then detect indications of an impending change in current demand within the SoC. If an indication of an impending change in current demand is detected, then the power management unit may be configured to adjust the power supply output to a second voltage level. After determining the impending change in current demand has occurred, the power management unit may be configured to adjust the power supply output back to the first voltage level.

公开(公告)号：US20140380066A1

公开(公告)日：2014-12-25

申请号：US13925950

申请日：2013-06-25

Applicant: Apple Inc.

Inventor： Toshinari Takayanagi ,  Jung Wook Cho ,  Patrick D. McNamara

IPC: G06F1/26

CPC classification number: G06F1/324 ,  G06F1/26 ,  G06F1/266 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

Abstract: A system for managing changes in current demand, including one or more processors, a memory coupled to at least one of the processors, a clock generation circuit coupled to the memory and configured to output a clock, one or more functional blocks, a power supply, configured to output a plurality of voltage levels, and a power management unit. The power management unit may be configured to set the power supply output to a first voltage level and then detect indications of an impending change in current demand within the SoC. If an indication of an impending change in current demand is detected, then the power management unit may be configured to adjust the power supply output to a second voltage level. After determining the impending change in current demand has occurred, the power management unit may be configured to adjust the power supply output back to the first voltage level.

Abstract translation: 一种用于管理当前需求的变化的系统，包括一个或多个处理器，耦合到至少一个处理器的存储器，时钟生成电路，其耦合到存储器并被配置为输出时钟，一个或多个功能块，电源 ，被配置为输出多个电压电平，以及电源管理单元。 功率管理单元可以被配置为将电源输出设置为第一电压电平，然后检测SoC内当前需求即将发生变化的指示。 如果检测到当前需求即将发生变化的指示，则电源管理单元可以被配置为将电源输出调整到第二电压电平。 在确定了当前需求即将发生变化之后，电源管理单元可被配置为将电源输出调整回到第一电压电平。

公开(公告)号：US20190286210A1

公开(公告)日：2019-09-19

申请号：US16363762

申请日：2019-03-25

Applicant: Apple Inc.

Inventor： Toshinari Takayanagi ,  Jung Wook Cho ,  Patrick D. McNamara

IPC: G06F1/324 ,  G06F1/26 ,  G06F1/3296

Abstract: A system for managing changes in current demand, including one or more processors, a memory coupled to at least one of the processors, a clock generation circuit coupled to the memory and configured to output a clock, one or more functional blocks, a power supply, configured to output a plurality of voltage levels, and a power management unit. The power management unit may be configured to set the power supply output to a first voltage level and then detect indications of an impending change in current demand within the SoC. If an indication of an impending change in current demand is detected, then the power management unit may be configured to adjust the power supply output to a second voltage level. After determining the impending change in current demand has occurred, the power management unit may be configured to adjust the power supply output back to the first voltage level.

公开(公告)号：US10241560B2

公开(公告)日：2019-03-26

申请号：US15212880

申请日：2016-07-18

Applicant: Apple Inc.

Inventor： Toshinari Takayanagi ,  Jung Wook Cho ,  Patrick D. McNamara

IPC: G06F1/26 ,  G06F1/32 ,  G06F1/324 ,  G06F1/3296

Abstract: A system for managing changes in current demand, including one or more processors, a memory coupled to at least one of the processors, a clock generation circuit coupled to the memory and configured to output a clock, one or more functional blocks, a power supply, configured to output a plurality of voltage levels, and a power management unit. The power management unit may be configured to set the power supply output to a first voltage level and then detect indications of an impending change in current demand within the SoC. If an indication of an impending change in current demand is detected, then the power management unit may be configured to adjust the power supply output to a second voltage level. After determining the impending change in current demand has occurred, the power management unit may be configured to adjust the power supply output back to the first voltage level.

公开(公告)号：US20170010646A1

公开(公告)日：2017-01-12

申请号：US15212880

申请日：2016-07-18

Applicant: Apple Inc.

Inventor： Toshinari Takayanagi ,  Jung Wook Cho ,  Patrick D. McNamara

IPC: G06F1/32 ,  G06F1/26

CPC classification number: G06F1/324 ,  G06F1/26 ,  G06F1/266 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

Abstract: A system for managing changes in current demand, including one or more processors, a memory coupled to at least one of the processors, a clock generation circuit coupled to the memory and configured to output a clock, one or more functional blocks, a power supply, configured to output a plurality of voltage levels, and a power management unit. The power management unit may be configured to set the power supply output to a first voltage level and then detect indications of an impending change in current demand within the SoC. If an indication of an impending change in current demand is detected, then the power management unit may be configured to adjust the power supply output to a second voltage level. After determining the impending change in current demand has occurred, the power management unit may be configured to adjust the power supply output back to the first voltage level.

Abstract translation: 一种用于管理当前需求的变化的系统，包括一个或多个处理器，耦合到至少一个处理器的存储器，时钟生成电路，其耦合到存储器并被配置为输出时钟，一个或多个功能块，电源 ，被配置为输出多个电压电平，以及电源管理单元。 功率管理单元可以被配置为将电源输出设置为第一电压电平，然后检测SoC内当前需求即将发生变化的指示。 如果检测到当前需求即将发生变化的指示，则电源管理单元可以被配置为将电源输出调整到第二电压电平。 在确定了当前需求即将发生变化之后，电源管理单元可被配置为将电源输出调整回到第一电压电平。

公开(公告)号：US20150015283A1

公开(公告)日：2015-01-15

申请号：US13938901

申请日：2013-07-10

Applicant: Apple Inc.

Inventor： Brian S. Park ,  Patrick D. McNamara ,  Kwang M. Lee ,  Meng C. Chong ,  Geertjan Joordens ,  Raman S. Thiara ,  Anh T. Hoang ,  John P. Gonzalez

IPC: G01R31/319

CPC classification number: G01R31/31721 ,  G01R19/16552 ,  G01R31/31816 ,  G06F1/28

Abstract: A method and apparatus for power glitch detection in IC's is disclosed. In one embodiment, a method includes a detection circuit in an IC detecting a voltage transient wherein a value of a supply voltage has at least momentarily fallen below a reference voltage value. Responsive thereto, the detection circuit may cause a logic value to be stored in a register indicating that the detection circuit has detected the supply voltage falling below the reference voltage. The IC may include a number of detection circuits coupled to the register, each of which may provide a corresponding indication of detecting the supply voltage falling below the reference voltage. The detection circuits may be placed at different locations, and thus reading the register may yield information indicating the locations where, if any, such voltage transients occurred.

Abstract translation: 公开了一种用于IC中电源故障检测的方法和装置。 在一个实施例中，一种方法包括检测电压瞬变的IC中的检测电路，其中电源电压的值至少暂时低于参考电压值。 响应于此，检测电路可以使逻辑值存储在指示检测电路已经检测到低于参考电压的电源电压的寄存器中。 IC可以包括耦合到寄存器的多个检测电路，每个检测电路可以提供检测低于参考电压的电源电压的相应指示。 检测电路可以放置在不同的位置，因此读取寄存器可以产生指示出现这种电压瞬变的位置（如果有的话）的信息。