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    MULTI-NODE SYSTEM FAULT MANAGEMENT
    1.
    发明申请
    MULTI-NODE SYSTEM FAULT MANAGEMENT 审中-公开

    公开(公告)号：US20180254626A1

    公开(公告)日：2018-09-06

    申请号：US15446458

    申请日：2017-03-01

    申请人： HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    发明人： Mohamed Amin BEMAT ,  Howard LEVERENZ ,  Daniel HUMPHREY

    IPC分类号： H02H3/44 ,  H02H7/20 ,  G01R31/02 ,  G01R19/12

    CPC分类号： H02H3/44 ,  G01R19/12 ,  G01R19/16576 ,  G01R31/025 ,  H02H3/04

    摘要： Examples disclosed herein relate to multi-node system fault management. In some of the examples disclosed herein, a fault detection circuit may distinguish between normal operating conditions of a multi-node system and faults that occur between the overcurrent protection of the system's power supplies and the hot plug protection of the system's nodes. The fault detection circuit may detect these faults by monitoring a voltage at the node's backplane connector prior to the input of the node's hot plug protection interface. If the magnitude of the monitored voltage drops below a threshold voltage at a rate that exceeds a threshold rate, the fault detection circuit may determine that a fault has occurred and may communicate the fault to the power supplies. The power supplies may receive the fault communication and shut off their power outputs to prevent the fault from causing damage to the components in the system.

    Circuit breakers with integrated safety, control, monitoring, and protection features
    5.
    发明授权
    Circuit breakers with integrated safety, control, monitoring, and protection features 有权

    公开(公告)号：US09659721B1

    公开(公告)日：2017-05-23

    申请号：US14705598

    申请日：2015-05-06

    申请人： Google Inc.

    发明人： Jyoti Sastry ,  Anand Ramesh ,  Gregory E. Leyh ,  Ronald Scott Collyer ,  Arunava Majumdar ,  Ankit Somani

    IPC分类号： H01H9/54 ,  H02H3/08 ,  H02H1/00

    CPC分类号： H01H9/54 ,  H02H1/0061 ,  H02H3/08 ,  H02H3/44

    摘要： Methods, systems, and apparatus for circuit breakers with integrated safety, control, monitoring, and protection features. In one aspect, a circuit breaker includes, an input and an output, a switch coupled between the input and the output, a sensor configured to measure the current flowing from the input to the output, and a control system coupled to the sensor and the switch, wherein the control system is configured to perform operations including comparing a rate of change of the current measured by the sensor to a threshold rate of change of current, determining that the rate of change of the current measured by the sensor exceeds the threshold rate of change of current for at least a predetermined period of time, and as a consequence of determining that the rate of change of current exceeds the threshold rate of change, opening the switch, thereby disconnecting the input from the output.

    LOW-LOSS AND FAST ACTING SOLID-STATE BREAKER
    6.
    发明申请
    LOW-LOSS AND FAST ACTING SOLID-STATE BREAKER 审中-公开

    公开(公告)号：US20170141558A1

    公开(公告)日：2017-05-18

    申请号：US15346226

    申请日：2016-11-08

    申请人： Silicon Power Corporation

    发明人： JOHN E. WALDRON ,  Kenneth BRANDMIER ,  James K. AZOTEA

    IPC分类号： H02H3/033 ,  H02H3/027 ,  H02H3/44 ,  H03K17/567

    CPC分类号： H02H3/033 ,  H02H3/027 ,  H02H3/08 ,  H02H3/20 ,  H02H3/44 ,  H03K17/0416 ,  H03K17/567

    摘要： A circuit including a source, a load, and an isolation circuit for controllably isolating the load from the source. The isolation circuit is disposed between the source and the load. The isolation circuit includes at least one insulated-gate bipolar transistor (IGBT) and at least one gate turn-off thyristor (GTO) in parallel with the insulated-gate bipolar transistor. When no fault condition exists, the GTO is configured to be ON to couple the load to the source. When a fault condition exists, the at least one IGBT is configured to turn ON. After the at least one IGBT turns ON, the at least one GTO is configured to turn OFF. After a predetermined amount of time, reflecting the post fabrication alteration to the GTO's minority carrier lifetime (e.g. electron irradiation), after the at least one GTO turns OFF, the at least one IGBT is configured to turn OFF. Alternatively, the circuit is used as an inverter switch, where at the command to turn ON is supplied, the at least one IGBT is turned ON, followed by the at least one SGTO. When commanded to turn OFF the at least one SGTO is turned OFF followed by the at least one IGBT. This alternative configuration allows the robust, controllable switching speeds of IGBTs and the superior conduction efficiency of SGTOs. The two configurations mentioned above utilize a wide range of SGTO performance, thus the ability to control the SGTOs turn-off speed by reducing its minority carrier lifetime after the device is processed is of large importance. The efficiency of all uses of the circuit can be optimized with the judicious selection of SGTO minority carrier lifetime and the ratio of active area between the SGTO and IGBT devices. In all cases there is a balance between the time the circuit can achieve hard turn-off without current commutation, the conduction efficiency of the circuit and the maximum amount of controllable current. In all cases both the conduction efficiency of the circuit is higher than an IGBT-only based circuit, and the switching performance is higher than a GTO-only based circuit.

    Electronic device and voltage monitoring method
    7.
    发明授权
    Electronic device and voltage monitoring method 有权
    电子设备和电压监控方法

    公开(公告)号：US09490625B2

    公开(公告)日：2016-11-08

    申请号：US14339852

    申请日：2014-07-24

    申请人： FUJITSU LIMITED

    发明人： Ryo Tanimoto ,  Takahiko Yasuda ,  Masato Soga

    IPC分类号： H02H3/00 ,  H02H3/44 ,  H04M1/18 ,  H04M1/725

    CPC分类号： H02H3/44 ,  H04M1/18 ,  H04M1/72527

    摘要： An electronic device includes a processor, and a connector used for connecting an external device to the electronic device, wherein the processor monitors fluctuation in a voltage at a specific terminal of the connector, and when the fluctuation in the voltage during a predetermined time period are not within a predetermined range, the processor electrically separates the connector.

    摘要翻译： 电子设备包括处理器和用于将外部设备连接到电子设备的连接器，其中处理器监视连接器的特定端子处的电压波动，并且当预定时间段内的电压波动为 处理器不在预定范围内，电连接器分离。

    Power converter with switching element
    8.
    发明授权
    Power converter with switching element 有权
    带开关元件的电源转换器

    公开(公告)号：US09444246B2

    公开(公告)日：2016-09-13

    申请号：US14287507

    申请日：2014-05-27

    申请人： DENSO CORPORATION ,  NIPPON SOKEN, INC.

    发明人： Kimikazu Nakamura ,  Yuji Hayashi

    IPC分类号： H02H3/20 ,  H02H7/12 ,  H02M1/32 ,  H02M3/155 ,  H02M3/335 ,  H02M7/5387 ,  H02H3/44 ,  G05F1/573 ,  H02H9/02

    CPC分类号： H02H7/1213 ,  G05F1/573 ,  H02H3/44 ,  H02H9/02 ,  H02M1/32 ,  H02M3/155 ,  H02M3/335 ,  H02M7/5387

    摘要： In a power converter, a driver that drives, according to a control signal, a switching element of a switch circuit for converting input power to output power. The control signal represents how to drive the switching element. A controller outputs the control signal to the driver for controlling the driver. A measuring unit measures a value of input power input to the switch circuit. A protection determining unit determines, based on the measured value of the input power, whether there is a need to protect the power converter. The protection determining unit outputs a stop control signal to at least one of the driver and the controller based on a result of the determination of whether there is a need to protect the power converter. The stop control signal represents whether to forcibly stop drive of the switching element.

    摘要翻译： 在功率转换器中，驱动器根据控制信号驱动用于将输入功率转换为输出功率的开关电路的开关元件。 控制信号表示如何驱动开关元件。 控制器将控制信号输出到驾驶员以控制驾驶员。 测量单元测量输入到开关电路的输入电源的值。 保护确定单元基于输入功率的测量值确定是否需要保护功率转换器。 保护确定单元基于确定是否需要保护功率转换器的结果向至少一个驱动器和控制器输出停止控制信号。 停止控制信号表示是否强制停止开关元件的驱动。

    Magnetizing inrush current suppression device
    9.
    发明授权
    Magnetizing inrush current suppression device 有权
    励磁浪涌电流抑制装置

    公开(公告)号：US09385525B2

    公开(公告)日：2016-07-05

    申请号：US14205090

    申请日：2014-03-11

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Tadashi Koshizuka ,  Minoru Saito ,  Shiro Maruyama ,  Hiroyuki Maehara ,  Koji Suzuki

    IPC分类号： H02H7/04 ,  H02H9/00 ,  H01H9/56 ,  H02H7/045 ,  H02H3/08 ,  H02H9/04 ,  H02H3/44

    CPC分类号： H02H9/002 ,  H01H9/563 ,  H02H3/08 ,  H02H3/44 ,  H02H7/04 ,  H02H7/042 ,  H02H7/045 ,  H02H9/04

    摘要： According to one embodiment, there is provided a magnetizing inrush current suppression device. A closing phase determination unit determines a phase position for suppressing the magnetizing inrush current among phase positions in which the prospective magnetic flux calculated by the prospective magnetic flux calculation unit and the residual magnetic flux calculated by the residual magnetic flux calculation unit coincide between the lines of the minimum residual magnetic flux determined by the minimum residual magnetic flux determination unit, as a closing phase position. A closing unit simultaneously closes the three phases of the circuit-breaker at the determined closing phase position.

    摘要翻译： 根据一个实施例，提供了一种励磁涌流抑制装置。 关闭相位确定单元确定用于抑制由预期磁通计算单元计算出的预期磁通量和由剩余磁通计算单元计算出的剩余磁通量的相位位置之间的磁化冲击电流的相位位置， 由最小剩余磁通量确定单元确定的最小剩余磁通量作为闭合相位置。 闭合单元同时在确定的闭合相位置处闭合断路器的三相。