公开(公告)号：US09748763B2

公开(公告)日：2017-08-29

申请号：US14532740

申请日：2014-11-04

Applicant: General Electric Company

Inventor： Marcelo Esteban Valdes ,  Michael Constantin Von Kannewurff

IPC: H02H7/00 ,  H02H7/30 ,  H02H3/033 ,  H02H3/04

CPC classification number: H02H7/30 ,  H02H3/033 ,  H02H3/04

Abstract: Circuit protection devices, power distribution systems, and methods of monitoring circuit protection devices are described. In one example, a method of monitoring a circuit protection device in a zone selective interlocking (ZSI) system includes monitoring a variable associated with operation of the circuit protection device, determining, based at least in part on the monitored variable, when a likelihood of a malfunction of the circuit protection device exceeds a predetermined threshold, and preventing the circuit protection device from outputting a ZSI blocking signal when the likelihood of the malfunction of the circuit protection device exceeds the threshold.

公开(公告)号：US09685866B2

公开(公告)日：2017-06-20

申请号：US15005965

申请日：2016-01-25

Applicant: ams AG

Inventor： Mark Niederberger

IPC: H02M3/158 ,  G05F3/20 ,  H02H7/00 ,  H02M3/335 ,  G01R15/14

CPC classification number: H02M3/158 ,  G01R15/146 ,  G05F3/20 ,  H02H7/00 ,  H02M3/335

Abstract: In an embodiment a shunt driver circuit has a first and a second connection terminal (N1, N2) forming a two-wire interface (N1, N2), the first connection terminal (N1) being prepared to receive a supply power and to provide an output signal (Sout), the second connection terminal (N2) being connected to a reference potential terminal (10), an Operational Transconductance Amplifier, OTA, (11) comprising a first input coupled to the first connection terminal (N1), a second input for receiving a first reference signal (Sref1) and an output (12) for providing a signal (S12) depending on a difference between an input signal on the first input and the first reference signal (Sref1), a capacitor (C1) coupled between the output (12) and the first input of the OTA (11) via the second connection terminal (N2) in a control loop, and a controlled current source (13) coupled between the output (12) of the OTA (11) and the second connection terminal (N2). The controlled current source (13) is controlled to provide an additional current (Ifall) during a transient phase of the output signal (Sout).

公开(公告)号：US09647399B2

公开(公告)日：2017-05-09

申请号：US14781304

申请日：2014-02-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takuya Kagawa ,  Hideki Tamura ,  Kazunori Kidera

IPC: H02H7/00 ,  H01R13/713 ,  B60L11/18 ,  B60L3/00 ,  B60L3/04 ,  H02J7/00 ,  H01R13/66

CPC classification number: H01R13/7135 ,  B60L3/00 ,  B60L3/0069 ,  B60L3/04 ,  B60L11/1809 ,  B60L11/1818 ,  B60L11/1842 ,  B60L2240/36 ,  H01R13/665 ,  H01R13/6683 ,  H01R13/713 ,  H02J7/0029 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y04S10/126

Abstract: Connector for electrical connection includes coupler, cable, switch mechanism, failure detector and transmitter. Coupler is removably inserted in and connected to reception side connector provided in machine which is equipped with storage battery. Cable includes two or more electric wires including power line configured to be electrically connected to reception side connector via coupler. Cable is connected to device that performs at least one of supplying power to machine and receiving power from machine. Switch mechanism opens and closes electrical circuit between coupler and power line. Failure detector detects occurrence of failure of coupler. Transmitter transmits detection result of failure detector to device through at least one first electric wire of the two or more electric wires. Switch mechanism opens and closes the electrical circuit in accordance with control signal transmitted through first electric wire.

公开(公告)号：US09640980B2

公开(公告)日：2017-05-02

申请号：US15110432

申请日：2014-03-26

Applicant: Mitsubishi Electric Corporation

Inventor： Masataka Ieda ,  Shuya Sano

IPC: G01R31/327 ,  H02H7/00 ,  H02H7/08 ,  H02J1/00 ,  H02M7/5387 ,  H02P3/18 ,  H02P27/08 ,  H02H3/04 ,  H02H3/05

CPC classification number: H02H7/008 ,  G01R31/327 ,  H02H3/04 ,  H02H3/05 ,  H02H7/0844 ,  H02J1/00 ,  H02M7/5387 ,  H02P3/18 ,  H02P27/08

Abstract: A power interrupting device has: an output terminal connected to a load; interruption circuits connected in parallel between a power source and the output terminal; and a control device controlling each interruption circuit. Each interruption circuit has: a switch element connected between the power source and an intermediate node, and ON/OFF controlled by an interruption signal output from the control device; and a rectifier connected such that a forward direction thereof is from the intermediate node to the output terminal. The control device sets the interruption circuits as a diagnosis target circuit in turn. The control device sets the interruption signal output to each interruption circuit such that the switch element of the diagnosis target circuit is OFF. Moreover, the control device determines, based on a voltage of the intermediate node of the diagnosis target circuit, whether an abnormality occurs in the diagnosis target circuit.

公开(公告)号：US09640979B2

公开(公告)日：2017-05-02

申请号：US14327581

申请日：2014-07-10

Applicant: Bruker HTS GmbH

Inventor： Alexander Usoskin

IPC: H01L39/24 ,  H02H7/00 ,  H01L39/16 ,  H01L39/14

CPC classification number: H02H7/001 ,  H01L39/143 ,  H01L39/16 ,  H01L39/2461

Abstract: A superconducting element (1) has a metallic substrate (2), an insulating layer (3), a superconductor layer (5) and a metallic protective layer (6), wherein the insulating layer (3) is arranged between the substrate (2) and the superconductor layer (5). In cross-section of the superconducting element (1), the insulating layer (3) extends at both ends past the area (BSL) of the substrate (2) covered by the superconductor layer (5) to galvanically separate the superconductor layer (5) and the metallic protective layer (6) from the substrate (2). The thickness D of the insulating layer (3) is selected in such a fashion that the superconducting element (1) has a transverse breakdown voltage between the metallic substrate (2) and both the superconductor layer (5) as well as the metallic protective layer (6) of at least 25 V. The superconducting element has a reduced risk of being damaged in case of a quench.

公开(公告)号：US09583936B1

公开(公告)日：2017-02-28

申请号：US13555372

申请日：2012-07-23

Applicant: Max J. Wishman ,  Richard Arvel Stevens ,  David E. Bryan

Inventor： Max J. Wishman ,  Richard Arvel Stevens ,  David E. Bryan

IPC: H02H7/00 ,  H02H3/00 ,  H02H7/26 ,  H02H7/22

CPC classification number: H02H7/267 ,  H02H3/033 ,  H02H3/32 ,  H02H7/22 ,  H02H7/30

Abstract: A data center includes one or more racks, computing devices mounted in the racks, and an electrical power system. The electrical power system supplies power to the computing devices in the racks. The electrical power system includes one or more rack power distribution units (PDUs) and one or more floor power distribution units (PDUs) or power panels. The rack PDUs include rack-level circuit protection devices that protect the computing devices receiving power from the rack PDU from overcurrent conditions. The floor PDUs or power panels include floor-level circuit protection devices that protect the computing devices from overcurrent conditions. The rack-level circuit protection devices have a faster response time than the floor-level circuit protection devices.

Abstract translation: 数据中心包括一个或多个机架，安装在机架中的计算设备和电力系统。 电力系统为机架中的计算设备供电。 电力系统包括一个或多个机架配电单元（PDU）和一个或多个楼层配电单元（PDU）或电力面板。 机架PDU包括机架级电路保护装置，其保护从机架PDU接收电力的计算设备免于过电流状况。 地板PDU或电源面板包括保护计算设备免受过电流条件的楼层电路保护装置。 机架级电路保护装置比楼层电路保护装置具有更快的响应时间。

公开(公告)号：US09509135B2

公开(公告)日：2016-11-29

申请号：US14239131

申请日：2012-08-17

Applicant: Robert Wilson ,  Mohinder Pannu

Inventor： Robert Wilson ,  Mohinder Pannu

IPC: H02H7/00 ,  H02H9/02 ,  H01F29/14 ,  H01F38/02 ,  H02H3/33 ,  H01F3/10 ,  H01F6/00

CPC classification number: H02H9/021 ,  H01F29/14 ,  H01F38/023 ,  H01F2003/103 ,  H01F2006/001 ,  H02H3/332

Abstract: A fault current limiter is provided that comprises a magnetically saturable core. The first core includes a first leg, a second leg, with a first AC coil wound on the second leg, a third leg, with a second AC coil wound around the third leg, the first and second AC coils being wound in series and connected to a first phase AC source, and a fourth leg. The first magnetic biasing unit is arranged to produce a first closed magnetic circuit in the first leg and the second leg that has a first flux direction, and the second coil is arranged to produce a second closed magnetic circuit in the fourth leg and the third leg that has a second flux direction, wherein the first flux direction opposes the second flux direction. The first and second AC coils are arranged to produce a first closed AC magnetic circuit in the second and third legs in an AC flux direction that alternates with each AC half-cycle.

Abstract translation: 提供了包括磁饱和芯的故障电流限制器。 第一芯包括第一腿，第二腿，第一腿和第二腿上的第一个交流线圈，第三腿，第二个交流线圈围绕第三个腿缠绕，第一个和第二个交流线圈串联并连接 到第一相AC源和第四支路。 第一磁偏置单元被布置成在第一腿部和第二腿部中产生具有第一磁通方向的第一闭合磁路，并且第二线圈布置成在第四腿部和第三腿部中产生第二闭合磁路 其具有第二磁通方向，其中所述第一磁通方向与所述第二磁通方向相反。 第一和第二AC线圈被布置成在与每个AC半周期交替的AC通量方向上产生第二和第三腿中的第一闭合AC磁路。

公开(公告)号：US20160336309A1

公开(公告)日：2016-11-17

申请号：US15147135

申请日：2016-05-05

Applicant: Rohm Co., Ltd.

Inventor： Hirofumi Yuki ,  Shuntaro Takahashi

IPC: H01L27/02 ,  H01L29/735 ,  H01L29/06 ,  H02H5/04 ,  H02H7/00

CPC classification number: H01L27/0259 ,  H01L29/0619 ,  H01L29/732 ,  H01L29/735 ,  H02H5/044 ,  H02H7/00

Abstract: An overheat protection circuit has an NPN transistor, a power terminal to which a supply voltage is applied, a transmission path by which the supply voltage is transmitted from the power terminal to the collector of the NPN transistor without passing through a current source, and an output voltage generator that generates an output voltage commensurate with the base-emitter voltage of the NPN transistor.

Abstract translation: 过热保护电路具有NPN晶体管，施加电源电压的电源端子，不经过电流源的电源电压从NPN晶体管的电源端子发送到集电极的传输路径， 输出电压发生器，其产生与NPN晶体管的基极 - 发射极电压相当的输出电压。

公开(公告)号：US09466973B2

公开(公告)日：2016-10-11

申请号：US14137549

申请日：2013-12-20

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Yu Jin Jang ,  Jeong Mo Yang ,  Hwan Cho

IPC: H02H7/00 ,  H02H9/00 ,  H02H7/12

CPC classification number: H02H7/12

Abstract: Disclosed herein are an overload and short-circuit sensing circuit and a converter protecting circuit and method. The overload and short-circuit sensing circuit includes: an overcurrent sensing unit sensing a primary current of a converter; a voltage level adjusting unit adjusting a voltage level of the sensed primary current; a rectifying unit rectifying the signal adjusted by the voltage level adjusting unit; a short-circuit sensing unit sensing a current induced to a primary side of the converter due to a short-circuit or an overcurrent at a secondary side of the converter, separately from the overcurrent sensing unit; and a delay unit delaying the signal provided from the rectifying unit and the induced current sensing signal provided from the short-circuit sensing unit and providing the delayed signals to a control circuit for protecting the converter.

Abstract translation: 这里公开了一种过载和短路感测电路以及转换器保护电路和方法。 过载和短路检测电路包括：过电流检测单元，感测转换器的初级电流; 电压电平调整单元，调整感测到的初级电流的电压电平; 整流单元对由电压电平调整单元调整的信号进行整流; 短路检测单元，与过电流检测单元分开地感测由于转换器的次级侧的短路或过电流而感应到转换器的初级侧的电流; 以及延迟单元，延迟从整流单元提供的信号和从短路感测单元提供的感应电流感测信号，并将延迟的信号提供给用于保护转换器的控制电路。

公开(公告)号：US09419433B2

公开(公告)日：2016-08-16

申请号：US14049208

申请日：2013-10-08

Applicant: FSP TECHNOLOGY INC.

Inventor： Lung-Chi Wei ,  Ching-Chia Chu

IPC: H02H7/00 ,  H02H9/02 ,  H02H9/00

CPC classification number: H02H9/02 ,  H02H9/001

Abstract: A power supply apparatus is provided, and which includes a power conversion circuit, a control chip with soft-start function and a short protection circuit. The power conversion circuit is configured to provide a DC output voltage to a load in response to an output pulse-width-modulation (PWM) signal. The control chip is operated under a DC input voltage, and configured to generate the output PWM signal to control the operation of the power conversion circuit. The short protection circuit is configured to pull-down the level of a soft-start pin of the control chip, so as to substantially/significantly reduce the frequency and duty cycle of the output PWM signal, and then substantially/significantly reduce the current flowing through the shorted load.

Abstract translation: 提供一种电源装置，其包括功率转换电路，具有软启动功能的控制芯片和短路保护电路。 功率转换电路被配置为响应于输出脉宽调制（PWM）信号向负载提供DC输出电压。 控制芯片在DC输入电压下工作，并且被配置为产生输出PWM信号以控制功率转换电路的操作。 短路保护电路被配置为下拉控制芯片的软启动引脚的电平，以便基本上/显着地降低输出PWM信号的频率和占空比，然后基本上/显着地减小电流流动 通过短路负载。