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    • 71. 发明授权
    • Protection circuit apparatus
    • 保护电路装置
    • US08035943B2
    • 2011-10-11
    • US12377807
    • 2006-08-23
    • Pierre TurpinJeffrey T. Reiter
    • Pierre TurpinJeffrey T. Reiter
    • H02H9/08H02H9/02
    • H02H3/087
    • A protection circuit apparatus comprises a retriggerable fuse having an awakened state and a sleep state. The retriggerable fuse has an input and an output and is arranged, when in the awakened state, to selectively prevent a load current from flowing from the input to the output in response to the load current exceeding a first current threshold. An activation circuit is also provided and is arranged to sense the load current being drawn. The activation circuit causes the retriggerable fuse to enter the awakened state from the sleep state when the sensed load current exceeds a second current threshold.
    • 保护电路装置包括具有唤醒状态和睡眠状态的可再触发保险丝。 可再触发保险丝具有输入和输出,并且在处于唤醒状态时,响应于超过第一电流阈值的负载电流选择性地防止负载电流从输入流向输出。 还提供了一个激活电路,并且被布置成感测正被绘制的负载电流。 当检测到的负载电流超过第二电流阈值时,激活电路使可再触发保险丝从休眠状态进入唤醒状态。
    • 72. 发明授权
    • System and method for circuit overcurrent protection
    • 电路过流保护系统及方法
    • US08031455B2
    • 2011-10-04
    • US11650391
    • 2007-01-05
    • Namwook PaikVishwas M. Deokar
    • Namwook PaikVishwas M. Deokar
    • H02H5/04H02H3/00H02H9/08
    • H02H3/0935H02H3/006H03M1/129
    • In one aspect, the invention provides a system for protecting a plurality of circuits including a plurality of circuit protective devices wherein each circuit protective device includes a respective nominal current rating. According to one embodiment, the system includes current sensing circuitry configured to measure a current of each circuit protective device; and a controller configured to receive each of the measured currents. According to one embodiment, the controller is further configured to determine a ratio between a total current being carried by all of the circuit protective devices combined and a total nominal current rating of all of the circuit protective devices combined and employ the ratio to determine a modified nominal current rating of each circuit protective device, respectively. In a further embodiment, the controller is configured to generate an output signal to isolate a selected circuit selected from among the plurality of circuits based on the modified nominal current rating of the circuit protective device included in the selected circuit.
    • 一方面,本发明提供一种用于保护包括多个电路保护装置的多个电路的系统,其中每个电路保护装置包括相应的额定电流额定值。 根据一个实施例,该系统包括配置成测量每个电路保护装置的电流的电流感测电路; 以及被配置为接收每个所测量的电流的控制器。 根据一个实施例,控制器进一步被配置为确定由所有组合的电路保护装置承载的总电流与组合的所有电路保护装置的总额定电流额定值之间的比率,并且采用该比率来确定修改的 每个电路保护装置的额定电流额定值。 在另一实施例中,控制器被配置为基于包括在所选择的电路中的电路保护装置的修改的额定电流额定值来产生输出信号以隔离从多个电路中选择的选定电路。
    • 74. 发明授权
    • Ground fault protection circuit
    • 接地故障保护电路
    • US08018697B2
    • 2011-09-13
    • US12226058
    • 2007-02-07
    • Patrick Ward
    • Patrick Ward
    • H02H3/00H02H9/08
    • H02H3/33H01H9/56
    • A switching circuit, e.g. an RCD, comprises a pair of mechanical contacts (M) in an alternating current electricity supply (N, L) and circuit means (SCR) for opening the contacts to cut off the supply in response to a switching signal (S). The switching circuit includes further circuit means (Rs, Cs, D2, D3, Q1, Q2) for defining successive periods of time (“activation windows”) during which the magnitude of the supply voltage is not at a maximum and allowing the contacts to open in response to a switching signal only during such windows.
    • 开关电路,例如 RCD包括交流电源(N,L)中的一对机械触点(M)和用于响应于切换信号(S))断开触点以切断电源的电路装置(SCR)。 开关电路包括用于定义连续时间段(“激活窗口”)的进一步的电路装置(Rs,Cs,D2,D3,Q1,Q2),在此期间电源电压的幅度不在最大值,并允许触点 仅在这样的窗口期间响应于开关信号而打开。
    • 75. 发明授权
    • Operational amplifier circuit and arc fault circuit interrupter including the same
    • 运算放大器电路和电弧故障电路断路器包括相同
    • US08004802B2
    • 2011-08-23
    • US12273993
    • 2008-11-19
    • Robert T. Elms
    • Robert T. Elms
    • H02H3/00H02H9/08
    • H03F3/45475H02H1/0015H03F2200/102H03F2200/321H03F2203/45518H03F2203/45526
    • An operational amplifier circuit is for an arc fault circuit interrupter including a current sensor having a secondary and an envelope detector circuit having an input. The operational amplifier circuit includes a band pass filter having an input structured to be electrically interconnected with the secondary of the current sensor and an output; and a rectifier circuit. The rectifier circuit includes an operational amplifier having an input electrically interconnected with the output of the band pass filter and an output, a half-wave rectifier having an input electrically interconnected with the output of the operational amplifier, an output, and a forward voltage between the input and the output of the half-wave rectifier, the half-wave rectifier output being structured to be electrically interconnected with the input of the envelope detector circuit, and a voltage compensation circuit cooperating with the input and the output of the operational amplifier to compensate for the forward voltage.
    • 运算放大器电路用于包括电流传感器的电弧故障电路断续器,该电流传感器具有具有输入的次级和包络检测器电路。 运算放大器电路包括带通滤波器,该带通滤波器具有被构造成与电流传感器的次级电连接的输入端和输出端; 和整流电路。 整流电路包括运算放大器,其具有与带通滤波器的输出电互连的输入端和输出端,半波整流器具有与运算放大器的输出电互连的输入端,输出端和输出端之间的正向电压 半波整流器的输入和输出,半波整流器输出被构造为与包络检测器电路的输入电互连,以及电压补偿电路,与运算放大器的输入和输出协作, 补偿正向电压。
    • 77. 发明授权
    • Overcurrent limitation and output short-circuit protection circuit, voltage regulator using overcurrent limitation and output short-circuit protection circuit, and electronic equipment
    • 过流限流和输出短路保护电路,使用过流限流和输出短路保护电路的电压调节器以及电子设备
    • US07974060B2
    • 2011-07-05
    • US12219525
    • 2008-07-23
    • Koichi Morino
    • Koichi Morino
    • H02H9/08
    • G05F1/573
    • A disclosed overcurrent protection and output short-circuit protection circuit has a proportional output current generation unit and a first current voltage conversion unit provided in series between a first power supply terminal and an output terminal. Furthermore, the overcurrent protection and output short-circuit protection circuit has a control unit that operates based on a difference between a voltage generated at the first current voltage conversion unit and that generated at a second current voltage conversion unit provided between the first power supply terminal and a second power supply terminal. A current flowing to the second current voltage conversion unit is changed by one or more switching elements in a stepwise manner based on the output voltages of the output transistor when supplying the current, thereby changing the voltages generated at both ends of the second current voltage conversion unit.
    • 公开的过电流保护和输出短路保护电路具有比例输出电流产生单元和串联设置在第一电源端子和输出端子之间的第一电流电压转换单元。 此外,过电流保护和输出短路保护电路具有控制单元,该控制单元基于在第一电流电压转换单元处产生的电压与在设置在第一电源端子之间的第二电流电压转换单元处产生的电压之间的差异进行操作 和第二电源端子。 流过第二电流电压转换单元的电流在供给电流时基于输出晶体管的输出电压以逐步的方式改变,从而改变在第二电流电压转换的两端产生的电压 单元。
    • 78. 发明授权
    • System and method for detection of multiple current limits
    • 用于检测多个电流限制的系统和方法
    • US07957116B2
    • 2011-06-07
    • US11752101
    • 2007-05-22
    • John So
    • John So
    • H02H9/08H02H3/08H02H9/02
    • G05F1/573H02H3/006H02H9/025
    • Devices, such as mobile devices, may be exposed to short circuit and output overload events. To protect against such events, mobile devices typically include current limit circuits. Some current limit circuits may involve user programmable function. User programmable function may need accurate current limit detectors. Various embodiments of the present invention include devices and methods for detecting one or more programmed current limits. Some embodiments allow for a user application to select among parallel or serial configurations of current detection circuitry. Each such configuration may include multiple resistive devices of different resistive values.
    • 诸如移动设备的设备可能暴露于短路和输出过载事件。 为了防止这种事件,移动设备通常包括限流电路。 一些电流限制电路可能涉及用户可编程功能。 用户可编程功能可能需要精确的电流限制检测器。 本发明的各种实施例包括用于检测一个或多个编程电流限制的装置和方法。 一些实施例允许用户应用在当前检测电路的并行或串行配置中进行选择。 每种这样的配置可以包括具有不同电阻值的多个电阻器件。
    • 79. 发明授权
    • Arc detection circuit
    • 电弧检测电路
    • US07952843B2
    • 2011-05-31
    • US12643774
    • 2009-12-21
    • Frederick Jerome Potter
    • Frederick Jerome Potter
    • H02H9/08H02H3/00
    • H02H1/0015H02H7/26
    • An arc detector comprising a voltage generator for detecting a voltage and an integrator for integrating said voltage with respect to time and generating an output signal corresponding to said integration. The arc detector also includes a discharge controller for controlling said output signal of said integrator, an amplifier for amplifying said output signal from said integrator and outputting an amplified signal; and a comparator for comparing said amplified output signal to a reference voltage and generating a detection signal based on said comparison.
    • 一种电弧检测器,包括用于检测电压的电压发生器和用于将所述电压相对于时间积分的积分器,并产生对应于所述积分的输出信号。 电弧检测器还包括用于控制所述积分器的所述输出信号的放电控制器,用于放大来自所述积分器的所述输出信号并输出​​放大信号的放大器; 以及比较器,用于将所述放大的输出信号与参考电压进行比较,并且基于所述比较产生检测信号。
    • 80. 发明申请
    • CURRENT SENSOR FOR EARTH LEAKAGE MODULE
    • 电流泄漏模块的电流传感器
    • US20110116197A1
    • 2011-05-19
    • US12621141
    • 2009-11-18
    • Henry J. Zylstra
    • Henry J. Zylstra
    • H02H9/08H01F38/30G01R31/327
    • G01R15/183G01R31/025H01F38/30
    • A current sensor assembly used for detecting ground faults, which includes an enclosure surrounding the current sensor for focusing the magnetic flux produced by conductors passing through the current sensor assembly away from the conductors, thereby reducing load-shift error and producing more accurate current readings for ground-fault sensing. The enclosure has two half members that are secured together to form a toroid-shaped shell that surrounds a toroidal core of the current sensor. A secondary winding and an optional test winding is wound around the toroidal core, and the ends of these windings exit one or more apertures formed in the enclosure. The half members have rounded profiles where the flat surfaces transition into different planes so that the magnetic flux does not encounter any sharp edges or transitions inside the enclosure as the flux flows away from the conductors.
    • 用于检测接地故障的电流传感器组件,其包括围绕电流传感器的外壳,用于聚焦通过电流传感器组件的导体产生的磁通远离导体,由此减少负载偏移误差并产生更准确的电流读数 接地故障检测。 外壳具有固定在一起的两个半部件,以形成围绕电流传感器的环形磁芯的环形壳体。 次级绕组和可选的测试绕组缠绕在环形芯上,并且这些绕组的端部离开形成在外壳中的一个或多个孔。 半部件具有圆形轮廓,其中平坦表面转变成不同的平面,使得当焊剂远离导体时,磁通量不会在外壳内遇到任何尖锐的边缘或过渡。