Integrated anti-differential current sensing system
    4.
    发明授权
    Integrated anti-differential current sensing system 有权
    集成反差电流检测系统

    公开(公告)号:US07250748B2

    公开(公告)日:2007-07-31

    申请号:US10711746

    申请日:2004-10-01

    IPC分类号: G01R33/06

    CPC分类号: G01R15/202 G01R15/207

    摘要: The present invention is directed to a system for current sensing including a first Hall effect sensor and a second Hall effect sensor constructed to provide feedback indicating current flow through a conductor susceptible to external magnetic flux. A housing is configured to position the first Hall effect sensor and the second Hall effect sensor about the conductor to provide generally magnitude equal feedback of the current flow through the conductor and generally polarity opposite feedback of the external magnetic flux.

    摘要翻译: 本发明涉及一种用于电流检测的系统,其包括第一霍尔效应传感器和第二霍尔效应传感器,该传感器被构造成提供指示通过容易受到外部磁通量的导体的电流的反馈。 壳体被配置为将第一霍尔效应传感器和第二霍尔效应传感器定位在导体周围,以提供通过导体的电流的大致相等的反馈,并且大体上极性地反映外部磁通的极性反馈。

    Temperature compensating integrated anti-differential current sensing system
    5.
    发明授权
    Temperature compensating integrated anti-differential current sensing system 有权
    温度补偿集成抗差分电流检测系统

    公开(公告)号:US07259546B1

    公开(公告)日:2007-08-21

    申请号:US11162220

    申请日:2005-09-01

    IPC分类号: G01R15/20

    CPC分类号: G01R15/202 G01R15/207

    摘要: A system for current sensing includes a first Hall effect sensor and a second Hall effect sensor constructed to provide feedback indicating current flow through a conductor susceptible to external magnetic flux. A housing is configured to position the first Hall effect sensor and the second Hall effect sensor about the conductor to provide generally magnitude equal feedback of the current flow through the conductor and generally polarity opposite feedback of the external magnetic flux.

    摘要翻译: 用于电流感测的系统包括第一霍尔效应传感器和第二霍尔效应传感器,第二霍尔效应传感器被构造成提供反馈指示通过易受外部磁通量的导体的电流的反馈 壳体被配置为将第一霍尔效应传感器和第二霍尔效应传感器定位在导体周围,以提供通过导体的电流的大致相等的反馈,并且大体上极性地反映外部磁通的极性反馈。

    Auto window switch and obstacle detect/protect with override
    6.
    发明授权
    Auto window switch and obstacle detect/protect with override 失效
    自动车窗开关和障碍物检测/保护

    公开(公告)号:US5949207A

    公开(公告)日:1999-09-07

    申请号:US922586

    申请日:1997-09-03

    摘要: A control system and method for operating an automobile window to provide anti-trap protection in an AUTO UP mode, wherein a switch assembly communicates switch signals representative of operator commands by disposition in distinct positions. A sensor that detects when an object is trapped between the window and the frame, and transmits an anti-trap signal representative thereof. A logic circuit receives the switch signals and the anti-trap signal and controls the drive assembly for the window in response thereto. The switch assembly includes a switch to override the anti-trap sensor for closing the window even when an obstruction is sensed during the closing operation.

    摘要翻译: 一种用于操作汽车窗口以在AUTO UP模式下提供防陷阱保护的控制系统和方法,其中开关组件通过在不同位置的配置来传递代表操作者命令的开关信号。 一种传感器,用于检测物体在窗口和框架之间被捕获的位置,并发送代表该窗口的反陷阱信号。 逻辑电路接收开关信号和反陷阱信号,并响应于此而控制窗口的驱动组件。 开关组件包括一个开关,以便即使在关闭操作期间检测到阻塞物时,也可以覆盖用于关闭窗户的防陷器传感器。

    Circuit for controlling application of electricity to a coil of and
electric current switching apparatus
    7.
    发明授权
    Circuit for controlling application of electricity to a coil of and electric current switching apparatus 失效
    用于控制对线圈和电流开关装置的电力施加的电路

    公开(公告)号:US5910890A

    公开(公告)日:1999-06-08

    申请号:US24373

    申请日:1998-02-12

    CPC分类号: H01H47/325 H02H9/047

    摘要: A control circuit drives the coil of a contactor in response to a control voltage being applied. The control circuit includes a power supply that produces a regulated output voltage from the control voltage. The onset of the regulated output voltage starts a timer which controls the width of pulses produced by a PWM controller. The pulses control a transistor that applies the control voltage to the coil. Initially the pulses cause a high current to flow through the coil to close the contactor and after an interval of time the timer signals the PWM controller to shorten the pulses which applies lesser current to the coil to keep the contacts closed. A flyback circuit provides a relatively low reverse voltage drop path in parallel with the coil to maintain the electromagnetic field during the periods between the pulses. When the control voltage is removed to open the contactor, the flyback circuit provides a high reverse voltage drop path to promptly dampen the coil current.

    摘要翻译: 响应于施加的控制电压,控制电路驱动接触器的线圈。 控制电路包括从控制电压产生稳定的输出电压的电源。 调节输出电压的开始启动一个定时器,控制由PWM控制器产生的脉冲宽度。 脉冲控制向线圈施加控制电压的晶体管。 最初,脉冲引起高电流流过线圈以闭合接触器,并且在一段时间之后,定时器向PWM控制器发信号以缩短脉冲,从而将较小的电流施加到线圈以保持触点闭合。 回扫电路提供与线圈并联的相对低的反向电压降路径,以在脉冲之间的周期期间维持电磁场。 当去除控制电压以打开接触器时,反激电路提供高反向电压降路径,以迅速衰减线圈电流。

    Apparatus for testing an arc fault circuit interrupter
    8.
    发明授权
    Apparatus for testing an arc fault circuit interrupter 失效
    用于测试电弧故障电路断路器的装置

    公开(公告)号:US07307429B1

    公开(公告)日:2007-12-11

    申请号:US11489036

    申请日:2006-07-19

    IPC分类号: G01R31/12 H02H3/00

    CPC分类号: G01R31/3277

    摘要: A test apparatus tests an arc fault circuit breaker with an arc fault generator having an input and an output. The test apparatus includes a first electrical connector electrically connected to the load side of an arc fault circuit interrupter. A second electrical connector is electrically connected to the input of the arc fault generator. A third electrical connector is electrically connected to the output of the arc fault generator. A plurality of fourth electrical connectors are electrically connected to one or more of a plurality of masking loads. A fifth electrical connector is electrically connected to another load. A two pole, plural position rotary selector switch provides a plurality of different configurations of at least the arc fault generator and the one or more masking loads downstream of the load side of the arc fault circuit breaker.

    摘要翻译: 测试装置用具有输入和输出的电弧故障发生器来测试电弧故障断路器。 测试装置包括电连接到电弧故障断路器的负载侧的第一电连接器。 第二电连接器电连接到电弧故障发生器的输入端。 第三电连接器电连接到电弧故障发生器的输出端。 多个第四电连接器电连接到多个屏蔽负载中的一个或多个。 第五电连接器电连接到另一负载。 两极多位置旋转选择开关提供至少电弧故障发生器和电弧故障断路器的负载侧下游的一个或多个屏蔽负载的多种不同配置。

    Solid state power controller with overload protection
    9.
    发明授权
    Solid state power controller with overload protection 失效
    具有过载保护功能的固态电源控制器

    公开(公告)号:US4626954A

    公开(公告)日:1986-12-02

    申请号:US647763

    申请日:1984-09-06

    IPC分类号: H02H7/12 H02M5/293 H02H3/00

    CPC分类号: H02M5/293 H02H7/12

    摘要: A power controller with overload protection having an alternating current source (AC) connected through power lines (L1, L2) and a pair of power switching devices (FET1, FET2) and a current sensor resistance shunt (SH) in series to a load (LD). A line-derived control power supply circuit (LDS) is connected through one of the power switching devices (FET1) to the lower line (L1, L2) such that the control power supply current does not flow through the shunt (SH) or the load (LD). Close and open commands are applied from a control switch (CSW) through a threshold detector (DT) and a logic circuit (LG1) to operate a latch (LCH) that turns the power switching devices (FET1, FET2) on and off under the clocking control of a zero voltage detector (ZVD) and a zero current detector (ZCD) and the gating control of a minimum current circuit (MCC). An overload circuit (AVC, ITC, TTC) provides instantaneous trip of the latch on rupture current or timed trip of the latch on smaller overloads. Opto-isolated indicators (SS, ST) indicate trip conditions and loss of line voltage conditions as well as whether the load current is above or below a minimum current value which is a current level adequate for operation of the control system.

    摘要翻译: 具有过载保护的电力控制器具有通过电力线(L1,L2)和一对功率开关装置(FET1,FET2)和与负载串联的电流传感器电阻分流(SH)连接的交流电源(AC) LD)。 线路控制电源电路(LDS)通过功率开关器件(FET1)之一连接到下线(L1,L2),使得控制电源电流不流过分流器(SH)或 负载(LD)。 从控制开关(CSW)通过阈值检测器(DT)和逻辑电路(LG1)施加闭合和打开的命令,以操作锁存器(LCH),该锁存器(LCH)在下面的电源开关器件(FET1,FET2) 零电压检测器(ZVD)和零电流检测器(ZCD)的时钟控制和最小电流电路(MCC)的门控控制。 过载电路(AVC,ITC,TTC)在较小的过载情况下,提供闩锁对断路电流或定时跳闸的瞬时跳闸。 光电隔离指示器(SS,ST)指示跳闸条件和线路电压条件的损失,以及负载电流是否高于或低于最小电流值,该最小电流值是适用于控制系统操作的电流水平。