OVER-VOLTAGE PROTECTION FOR VOLTAGE REGULATOR MODULES OF A PARALLEL POWER SYSTEM
    1.
    发明申请
    OVER-VOLTAGE PROTECTION FOR VOLTAGE REGULATOR MODULES OF A PARALLEL POWER SYSTEM 有权
    并联电力系统电压调节器模块的过电压保护

    公开(公告)号:US20070279813A1

    公开(公告)日:2007-12-06

    申请号:US11769242

    申请日:2007-06-27

    IPC分类号: H02H3/20

    CPC分类号: H02M3/1584 H02M1/32

    摘要: A protection circuit for a parallel power system having at least two parallel coupled voltage regulators is disclosed. The protection circuit includes at least two isolation control circuits, each control circuit being coupled to a respective voltage regulator. Each isolation control circuit includes a current sense circuit for sensing current polarity at an output of the respective voltage regulator, and a controller for automatically isolating the respective voltage regulator when an over-voltage condition exists at an output of the parallel power system and a positive current polarity is sensed at the output of the respective voltage regulator. The at least two isolation control circuits isolate only a voltage regulator having positive current outflow during the over-voltage condition. In one embodiment, each isolation control circuit further includes an over-voltage detection circuit for detecting when the over-voltage condition exists at the output of the parallel power system.

    摘要翻译: 公开了一种具有至少两个并联耦合电压调节器的并联电力系统的保护电路。 保护电路包括至少两个隔离控制电路,每个控制电路耦合到相应的电压调节器。 每个隔离控制电路包括用于检测各个电压调节器的输出端的电流极性的电流检测电路,以及当在并联电力系统的输出端存在过电压状态时,用于自动隔离相应电压调节器的控制器, 在相应的电压调节器的输出处感测出电流极性。 至少两个隔离控制电路在过电压状态期间仅隔离具有正电流流出的电压调节器。 在一个实施例中,每个隔离控制电路还包括过电压检测电路,用于检测并联电力系统的输出端何时存在过电压状态。

    System and method for high voltage bidirectional communications interface
    2.
    发明申请
    System and method for high voltage bidirectional communications interface 审中-公开
    高压双向通信接口的系统和方法

    公开(公告)号:US20060075170A1

    公开(公告)日:2006-04-06

    申请号:US10954750

    申请日:2004-09-30

    IPC分类号: G06F13/00

    CPC分类号: G06F13/4291

    摘要: A system and method for providing an interface between a master device referenced at a first voltage and a slave device referenced at a second voltage. The system includes a bidirectional communications link between the master device and the slave device and a bidirectional transceiver device in the communications link for decomposing bidirectional signals on the communications link into transmissions from the slave device to the master device onto a first bus, and transmissions from the master device to the slave device onto a second bus. A first isolation device is included in the bidirectional link and connected to the first bus for transmitting signals over the bidirectional link from the master device referenced at the first voltage to the slave device referenced at the second voltage. A second isolation device in also included in the bidirectional link and connected to the second bus for transmitting signals over the bidirectional link from the slave device referenced at the second voltage to the master device referenced at the first voltage.

    摘要翻译: 一种用于在以第一电压参考的主设备和以第二电压参考的从设备之间提供接口的系统和方法。 该系统包括主设备和从设备之间的双向通信链路和通信链路中的双向收发器设备,用于将通信链路上的双向信号分解成从从设备到主设备到第一总线的传输,以及从第 主设备到从设备到第二总线。 第一隔离装置包括在双向链路中并且连接到第一总线,用于通过双向链路从第一电压参考的主设备传送信号到以第二电压参考的从设备。 第二隔离装置还包括在双向链路中并连接到第二总线,用于通过双向链路从第二电压参考的从设备向第一电压所参考的主设备发送信号。

    System, method and program product for extending range of a bidirectional data communication bus
    3.
    发明申请
    System, method and program product for extending range of a bidirectional data communication bus 失效
    用于扩展双向数据通信总线范围的系统,方法和程序产品

    公开(公告)号:US20050258865A1

    公开(公告)日:2005-11-24

    申请号:US10838391

    申请日:2004-05-04

    摘要: A communication system, method and program product are provided for establishing an extended bidirectional communication bus between a first device and a second device. The communication system includes decomposition logic for decomposing a single line, bidirectional data communication bus into a unidirectional transmit data communication bus and a unidirectional receive data communication bus. A differential communication subsystem is connected to the two unidirectional buses for extending the length thereof, and recomposition circuitry is connected to the differential communication subsystem for recombining the extended unidirectional transmit data communication bus and the extended unidirectional receive data communication bus to reestablish the single line, bidirectional data communication bus. The decomposition logic, differential communication subsystem and recomposition circuitry are implemented transparent to the first device and the second device and without use of a data direction control line.

    摘要翻译: 提供一种用于在第一设备和第二设备之间建立扩展双向通信总线的通信系统,方法和程序产品。 通信系统包括分解逻辑,用于将单线分解,双向数据通信总线分解为单向发送数据通信总线和单向接收数据通信总线。 差分通信子系统连接到两个单向总线,用于延长其长度,并且重新组合电路连接到差分通信子系统,用于重新组合扩展单向发送数据通信总线和扩展单向接收数据通信总线以重新建立单线, 双向数据通信总线。 分解逻辑,差分通信子系统和重组电路对第一设备和第二设备是透明的,而不使用数据方向控制线。

    System, method, and an article of manufacture for starting a brushless direct current motor
    4.
    发明申请
    System, method, and an article of manufacture for starting a brushless direct current motor 失效
    用于启动无刷直流电动机的系统,方法和制造

    公开(公告)号:US20050237017A1

    公开(公告)日:2005-10-27

    申请号:US10830348

    申请日:2004-04-22

    IPC分类号: H02P1/46 H02P6/18

    CPC分类号: H02P6/185

    摘要: A system and a method for starting a brushless DC motor are provided. The method includes applying commutation pulses to at least two phase coils to induce a rotor to rotate to a starting position and then de-energizing the at least two phase coils. The method further includes applying commutation pulses to at least two phase coils to induce the rotor to rotate from the starting position in a predetermined direction. The method further includes de-energizing all phase coils for a first time interval after the rotor is rotating and sampling a back EMF signal in at least one of the phase coils to determine a first value indicative of an electrical period of the back EMF signal or a portion of an electrical period of the back EMF signal. Finally, the method includes applying commutation pulses to at least two phase coils for a second time interval, the second time interval being based on the first value.

    摘要翻译: 提供了一种启动无刷直流电动机的系统和方法。 该方法包括将换向脉冲施加到至少两个相位线圈以引起转子旋转到起始位置,然后使至少两个相位线圈断电。 该方法还包括将换向脉冲施加到至少两个相位线圈以引导转子沿预定方向从起始位置旋转。 该方法还包括在转子旋转之后的第一时间间隔内使所有相线圈断电,并在至少一个相位线圈中采样反电动势信号,以确定表示反电动势信号的电周期的第一值,或 反电动势信号的电气周期的一部分。 最后,该方法包括对第二时间间隔的至少两个相位线圈施加换向脉冲,第二时间间隔基于第一值。

    Component indicators used during extended power-off service
    6.
    发明申请
    Component indicators used during extended power-off service 失效
    在延长关机服务期间使用的组件指示器

    公开(公告)号:US20070220324A1

    公开(公告)日:2007-09-20

    申请号:US11357147

    申请日:2006-02-17

    IPC分类号: G06F11/00

    CPC分类号: G06F1/263 G06F1/30 G06F11/325

    摘要: A method and related apparatus for servicing an electrical/electronic device during power shut offs is provided. The apparatus comprises a service logic having a memory and control component for storing device information during normal device operation and one or more indicators driven by the memory and control component after power shut off to provide service signals. The service logic also includes an auxiliary energy source selectively engageable to provide auxiliary power to the memory and control component during power shut off and to enable providing of service signals through the indicator(s).

    摘要翻译: 提供了一种用于在电源关闭期间维护电气/电子设备的方法和相关装置。 该装置包括具有用于在正常设备操作期间存储设备信息的存储器和控制组件的服务逻辑以及在电源关闭之后由存储器和控制组件驱动以提供服务信号的一个或多个指示器。 服务逻辑还包括辅助能量源,其选择性地可接合以在电源切断期间向存储器和控制部件提供辅助电力,并且能够通过指示器提供服务信号。

    Employing one or more multiport systems to facilitate servicing of asynchronous communications events
    7.
    发明申请
    Employing one or more multiport systems to facilitate servicing of asynchronous communications events 失效
    使用一个或多个多端口系统来促进对异步通信事件的维护

    公开(公告)号:US20050243813A1

    公开(公告)日:2005-11-03

    申请号:US10834799

    申请日:2004-04-29

    摘要: One or more multiport systems are used to facilitate servicing of asynchronous communications events. A multiport system, such as an open collector multiport system, receives from one of a plurality of source components an asynchronous communications event directed to a target component coupled to the plurality of source components. The multiport system is controlled to provide, at any given time, a communications path between a plurality of ports of the multiport system to service the asynchronous communications event. One or more multiport systems are used to forward the event from the source to the target.

    摘要翻译: 使用一个或多个多端口系统来促进异步通信事件的服务。 多端口系统,例如开放收集器多端口系统,从多个源组件中的一个源接收指向耦合到多个源组件的目标组件的异步通信事件。 多端口系统被控制以在任何给定的时间提供多端口系统的多个端口之间的通信路径来服务异步通信事件。 一个或多个多端口系统用于将事件从源转发到目标。

    Over-voltage protection for voltage regulator modules of a parallel power system

    公开(公告)号:US20070035899A1

    公开(公告)日:2007-02-15

    申请号:US11199644

    申请日:2005-08-09

    IPC分类号: H02H9/00

    CPC分类号: H02M3/1584 H02M1/32

    摘要: A protection circuit for a parallel power system having at least two parallel coupled voltage regulators is disclosed. The protection circuit includes at least two isolation control circuits, each control circuit being coupled to a respective voltage regulator. Each isolation control circuit includes a current sense circuit for sensing current polarity at an output of the respective voltage regulator, and a controller for automatically isolating the respective voltage regulator when an over-voltage condition exists at an output of the parallel power system and a positive current polarity is sensed at the output of the respective voltage regulator. The at least two isolation control circuits isolate only a voltage regulator having positive current outflow during the over-voltage condition. In one embodiment, each isolation control circuit further includes an over-voltage detection circuit for detecting when the over-voltage condition exists at the output of the parallel power system.

    Arbitration method and system for redundant controllers, with output interlock and automatic switching capabilities
    9.
    发明申请
    Arbitration method and system for redundant controllers, with output interlock and automatic switching capabilities 失效
    冗余控制器的仲裁方法和系统,具有输出互锁和自动切换功能

    公开(公告)号:US20050240812A1

    公开(公告)日:2005-10-27

    申请号:US10820177

    申请日:2004-04-07

    CPC分类号: G06F11/20 G06F11/2017

    摘要: An arbitration mechanism is provided for arbitrating between redundant controllers having outputs electrically connected together and provided as input to at least one device under control. The arbitration mechanism includes logic for automatically determining which controller of the redundant controllers is active controller, and a hardware output interlock for the redundant controllers to ensure that output controlled by only the active controller is enabled as input to the at least one device. The arbitration mechanism also includes logic for monitoring the active controller for failure, and upon detection of failure, for automatically switching active control to another controller of the redundant controllers transparent to the at least one device.

    摘要翻译: 提供仲裁机制用于在具有电连接在一起的输出的冗余控制器之间进行仲裁,并将其作为输入提供给被控制的至少一个设备。 仲裁机制包括用于自动确定冗余控制器的哪个控制器是主动控制器的逻辑,以及用于冗余控制器的硬件输出互锁,以确保仅由主动控制器控制的输出被启用为至少一个设备的输入。 仲裁机制还包括用于监视主动控制器用于故障的逻辑,以及在检测到故障时,用于将主动控制自动切换到对至少一个设备透明的冗余控制器的另一个控制器。