Data center energy monitoring
    1.
    发明授权

    公开(公告)号:US10534023B1

    公开(公告)日:2020-01-14

    申请号:US14456465

    申请日:2014-08-11

    Applicant: Google Inc.

    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for monitoring energy consumption. In one aspect, a method includes sending, to a power monitor of a circuit board, requests for power consumption data. The requests are sent periodically based on a reference clock that is located external to the circuit board and that is more accurate than a clock of the power monitor. Each request is for an accumulated amount of power for components of the circuit board. In response to each request, power consumption data is received from the power monitor. The power consumption data specifies the accumulated amount of power for the components of the circuit board since a previous request sent to the circuit board. An amount of energy consumed by the components of the circuit board over a time period is determined based on the received power measurements and the time period.

    Adjusting over current protection values during changes in load current

    公开(公告)号:US09667060B1

    公开(公告)日:2017-05-30

    申请号:US14532702

    申请日:2014-11-04

    Applicant: Google Inc.

    Inventor: Gregory Sizikov

    CPC classification number: H02H9/02 H02H3/006 H02H3/08

    Abstract: The systems and methods described are for adjusting over current protection values during changes in load current. In one aspect, a method includes, monitoring a load current amplitude value at a power input connected to an electrical load; determining a rate of change of the load current amplitude value; determining whether the rate of change of the load current amplitude value exceeds a predefined rate threshold value; in response to determining that the rate of change of the load current amplitude value exceeds the predefined rate threshold value: adjusting an over current protection value from a first over current protection value to an adjusted over current protection value for a first predefined amount of time; and at the expiration of the first predefined amount of time, at least partially reversing the adjustment to the over current protection value.

    Hot swap decoupling for noise reduction and failure prevention
    4.
    发明授权
    Hot swap decoupling for noise reduction and failure prevention 有权
    用于降噪和故障预防的热插拔去耦

    公开(公告)号:US09547621B1

    公开(公告)日:2017-01-17

    申请号:US15244729

    申请日:2016-08-23

    Applicant: Google Inc.

    Abstract: An apparatus for selectively connecting a decoupling capacitor in parallel with a load on a power bus during a hot swap power up. In an aspect, an apparatus includes a capacitive coupling connected to a hot swap control circuit and that capacitively couples first and second power conductors when the output of the hot swap control circuit indicates a monitored load has attained a voltage threshold.

    Abstract translation: 一种用于在热插拔加电期间选择性地将去耦电容器与电源总线上的负载并联的装置。 在一方面,一种装置包括连接到热插拔控制电路的电容耦合,并且当热插拔控制电路的输出指示所监视的负载达到电压阈值时,电容耦合第一和第二电力导体。

    Hot swap decoupling for noise reduction and failure prevention
    5.
    发明授权
    Hot swap decoupling for noise reduction and failure prevention 有权
    用于降噪和故障预防的热插拔去耦

    公开(公告)号:US09454503B1

    公开(公告)日:2016-09-27

    申请号:US13963624

    申请日:2013-08-09

    Applicant: Google Inc.

    Abstract: An apparatus for selectively connecting a decoupling capacitor in parallel with a load on a power bus during a hot swap power up. In an aspect, an apparatus includes a capacitive coupling connected to a hot swap control circuit and that capacitively couples first and second power conductors when the output of the hot swap control circuit indicates a monitored load has attained a voltage threshold.

    Abstract translation: 一种用于在热插拔加电期间选择性地将去耦电容器与电源总线上的负载并联的装置。 在一方面,一种装置包括连接到热插拔控制电路的电容耦合,并且当热插拔控制电路的输出指示所监视的负载达到电压阈值时,电容耦合第一和第二电力导体。

    Delaying power restoration
    6.
    发明授权

    公开(公告)号:US09746893B1

    公开(公告)日:2017-08-29

    申请号:US14525935

    申请日:2014-10-28

    Applicant: Google Inc.

    CPC classification number: G06F1/28 G06F1/30

    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying, for each of multiple circuits of an electrical device, a discharge time that indicates an amount of time previously taken for a voltage level of the circuit to decrease from a normal operating voltage to a specified voltage level after power was removed from the circuit. A delay time period is determined for the electrical device based on each discharge time. A command is received to cycle power to one or more components of the electrical device. In response to receiving the command, power is removed from the circuits for an amount of time that corresponds to the delay time period and power is restored to the circuits in response to the amount of time lapsing.

    Electrical protection and sensing control system
    7.
    发明授权
    Electrical protection and sensing control system 有权
    电气保护和感应控制系统

    公开(公告)号:US09368954B1

    公开(公告)日:2016-06-14

    申请号:US14493587

    申请日:2014-09-23

    Applicant: Google Inc.

    CPC classification number: H02H9/004

    Abstract: An apparatus for providing electrical protection and reducing power consumption in data centers. In an aspect, an apparatus includes a hot swap control circuit that monitors a voltage drop across a fuse, and selectively connects a bus bar to a load, based on the monitored voltage. Further, the apparatus selectively disconnects the bus bar from the load when the hot swap control circuit indicates that the monitored voltage across the fuse has attained a voltage threshold.

    Abstract translation: 一种用于在数据中心提供电气保护和降低功耗的设备。 一方面,一种装置包括热插拔控制电路,其基于所监视的电压来监视熔断器两端的电压降,并且选择性地将汇流条连接到负载。 此外,当热插拔控制电路指示保险丝两端的监控电压已经达到电压阈值时,该装置选择性地将母线与负载断开。

    Testing system for power delivery network
    8.
    发明授权
    Testing system for power delivery network 有权
    供电网络测试系统

    公开(公告)号:US09425794B1

    公开(公告)日:2016-08-23

    申请号:US14329384

    申请日:2014-07-11

    Applicant: Google Inc.

    CPC classification number: H03K19/00369 H03K19/017581

    Abstract: Systems and apparatus for an integrated test tool for that utilizes reconfigurable hardware to assess power delivery quality. In one aspect, a method includes receiving, at a control logic block in a field programmable gate array (FPGA), a load current amplitude value and a load current frequency value; determining, by the control logic block, an activation modulation signal that causes each of a plurality of load cells to which it is applied to be in an active state for a first period of time and in an inactive state during a second period of time, and a first of number of load cells that when activated according to the activation modulation signal cause the FPGA to draw a load current at the load current amplitude.

    Abstract translation: 用于集成测试工具的系统和设备利用可重配置硬件来评估功率传递质量。 一方面,一种方法包括在现场可编程门阵列(FPGA)中的控制逻辑块处接收负载电流振幅值和负载电流频率值; 通过所述控制逻辑块确定激活调制信号,使激活调制信号使得其被应用的多个负载单元中的每一个在第一时间段处于活动状态,并且在第二时间段期间处于非活动状态, 以及根据激活调制信号激活的多个称重传感器中的第一个,使得FPGA以负载电流幅度绘制负载电流。

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