Ground fault circuit interrupter incorporating miswiring prevention circuitry

    公开(公告)号:US06611406B2

    公开(公告)日:2003-08-26

    申请号:US10024166

    申请日:2001-12-18

    IPC分类号: H02H316

    CPC分类号: H02H3/338 H02H3/04

    摘要: A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.

    Electric series circuit
    12.
    发明授权
    Electric series circuit 失效
    电串联电路

    公开(公告)号:US5886423A

    公开(公告)日:1999-03-23

    申请号:US926856

    申请日:1997-09-10

    IPC分类号: H05B37/03 H05B39/10 H05B37/00

    摘要: An electric series circuit with plural loads such as light bulbs connected in series and plural solid state switching devices, with each switching device connected in parallel with one of the loads. Each switching device conducts current when the load that it is connected in parallel with does not conduct current because the load is burned out. The solid state switching means may be any device with a breakthrough voltage which is high enough that it does not conduct when all of the loads conduct current normally. When one of the loads is burned out, that load does not conduct current and the entire line voltage appears across the switching means in parallel with the burned out load. The switching means breaks down. Accordingly, the switching means conducts current and current flows to the remaining loads. Accordingly, the remaining light bulbs in a string of light bulbs continue to light. The burned out load may be immediately detected and replaced. The switching means may be a sidac. Alternatively, a combination of an SCR and a zener diode controlling the gate of the SCR are also disclosed as the switching means. A diac may replace the zener diode.

    摘要翻译: 具有多个负载的电串联电路,例如串联连接的灯泡和多个固态开关装置,每个开关装置与一个负载并联连接。 当负载被烧毁时,与并联连接的负载不会导通电流,每个开关装置导通电流。 固态开关装置可以是具有足够高的穿透电压的任何装置,使得当所有负载正常通电时不会导通。 当其中一个负载被烧坏时,该负载不会导通电流,并且整个电源电压与烧坏的负载并联,从而在开关装置上出现整个电源电压。 切换装置故障。 因此,开关装置对剩余的负载进行电流和电流的流动。 因此,一串灯泡中的剩余灯泡继续点亮。 可以立即检测并更换烧毁的负载。 切换装置可以是sidac。 或者,还公开了控制SCR的栅极的SCR和齐纳二极管的组合作为开关装置。 二极管可替代齐纳二极管。

    Ground fault circuit interrupter incorporating miswiring prevention
circuitry

    公开(公告)号:US5706155A

    公开(公告)日:1998-01-06

    申请号:US746692

    申请日:1996-11-14

    IPC分类号: H02H3/04 H02H3/33 H02H3/16

    CPC分类号: H02H3/338 H02H3/04

    摘要: A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.

    Capacitor-type motor speed controller
    14.
    发明授权
    Capacitor-type motor speed controller 失效
    电容式电机转速控制器

    公开(公告)号:US5703458A

    公开(公告)日:1997-12-30

    申请号:US490200

    申请日:1995-06-14

    IPC分类号: H02P25/04 H02P5/28

    CPC分类号: H02P25/04

    摘要: A quiet motor speed controller is disclosed which varies an amplitude of an AC voltage signal provided from an AC source to drive an AC motor. The controller includes a first impedance in series connection between the source and the motor. A second impedance is electrically connectable with the first impedance in accordance with settings of a switch such that the total impedance interposed between the source and the load is varied by switching. The first and second impedances are substantially defined by first and second capacitive values, preferably including resistive elements to limit current flow at charging and discharging.

    摘要翻译: 公开了一种安静的电动机速度控制器,其改变从AC源提供的AC电压信号的幅度来驱动AC电动机。 控制器包括源和电动机之间串联连接的第一阻抗。 根据开关的设置,第二阻抗可以与第一阻抗电连接,使得通过切换来改变介于源极和负载之间的总阻抗。 第一和第二阻抗基本上由第一和第二电容值限定,优选地包括用于限制充电和放电时的电流的电阻元件。

    Intelligent ground fault circuit interrupter
    15.
    发明授权
    Intelligent ground fault circuit interrupter 失效
    智能接地故障电路断路器

    公开(公告)号:US5600524A

    公开(公告)日:1997-02-04

    申请号:US435021

    申请日:1995-05-04

    摘要: An intelligent circuit interrupt system is electrically connected between an AC source and a load for interrupting a flow of AC from the source to the load upon detection of an interrupt condition. A circuit interrupter electrically connected to phase and neutral terminals of the AC source defines the interrupt condition. A relay switch with a relay coil and phase and neutral contacts is included such that line and load ends of the phase contact are electrically connected, respectively, between the interrupt means load side phase port and a phase terminal of the load. Line and load ends of the neutral contact are electrically connected, respectively, between the interrupt neutral port and a neutral terminal of the load. The relay coil is electrically coupled between load sides of said phase and neutral contacts for controlling the contacts in response to the interrupt signal. An open-contact miswiring detector (OCMD) is electrically connected to one of the phase and neutral contacts for detecting a miswiring condition when the contacts are in an open state, and a closed-contact miswiring detector (CCMD) is electrically connected to the OCMD and to one of the neutral and phase contacts for detecting a miswiring condition when the contacts are in a closed state. A timing signal generator generates system timing signals. A test circuit electrically coupled to the interrupt means and the timing signal generator tests the interrupt means operability. An alarm circuit is electrically responsive to the test circuit, the timing signal generator, the OCMD and the CCMD for, communicating an open-contact miswiring condition, a closed-contact miswiring condition, an operational failure condition, and a need for external testing condition. A power supply is electrically connected between the load ends of the phase and neutral contacts, and to the timing signal generator.

    摘要翻译: 智能电路中断系统电连接在AC源和负载之间,用于在检测到中断条件时中断从源到负载的AC流。 与AC电源的相位和中性端子电连接的断路器定义了中断条件。 包括具有继电器线圈和相和中性触点的继电器开关,使得相触点的线路和负载端分别在中断装置负载侧相位端口和负载的相位端子之间电连接。 中性触点的线路和负载端分别电气连接在中断中立端口和负载的中性端子之间。 继电器线圈电耦合在所述相位的负载侧和中性触点之间,以响应于中断信号来控制触点。 一个开路接线误接线检测器(OCMD)电连接到相位和中性触点中的一个,用于检测接点处于打开状态时的接线状况,闭合接线误接线检测器(CCMD)电连接到OCMD 以及当触点处于闭合状态时用于检测接线不良状况的一个中性线和相位触点。 定时信号发生器产生系统定时信号。 电耦合到中断装置的测试电路和定时信号发生器测试中断装置的可操作性。 报警电路对测试电路,定时信号发生器,OCMD和CCMD进行电气响应,用于传达开路接触误接线状态,闭路接触错误接线状况,操作故障状况以及对外部测试条件的需要 。 电源电连接在相位的负载端和中性触点之间,并连接到定时信号发生器。

    Electrical dimmer system employing alternately applied silicon
controlled rectifiers
    16.
    发明授权
    Electrical dimmer system employing alternately applied silicon controlled rectifiers 失效
    采用交替施加的可控硅整流器的电气调光系统

    公开(公告)号:US5327047A

    公开(公告)日:1994-07-05

    申请号:US954229

    申请日:1992-09-30

    申请人: Bernard Gershen

    发明人: Bernard Gershen

    IPC分类号: G05F1/00 H05B39/08

    摘要: A dimmer control system includes two discrete silicon controlled rectifiers which respectively energize a lamp load during alternate half cycles of the input AC voltage. The separate placement of the SCRs ensures that much lower temperatures are reached than would occur if a single triac were used to energize a lamp during both half cycles. The system also includes a pair of diacs which energize the respective SCRs when a respective capacitor directly connected to each diac discharges through one of them. The system further includes a respective capacitor charging circuit for each capacitor, each of the two charge circuits including a series connections of the gate to cathode junction of the SCR other than the one which the capacitor being charged discharges through, a diode, a common fixed resistor, and a common variable resistor.

    摘要翻译: 调光控制系统包括两个分立的可控硅整流器,它们分别在输入交流电压的交替半周期期间激励灯负载。 SCR的单独布置确保了在两个半周期内使用单个三端双向可控硅开关来激励灯的情况下,达到低得多的温度。 当直接连接到每个二极管的相应电容器通过其中的一个放电时,该系统还包括一对二极管,其对相应的SCR通电。 该系统还包括用于每个电容器的相应的电容器充电电路,两个充电电路中的每一个包括可控硅的栅极与阴极结之间的串联连接,不同于被充电的电容器放电的电容器的串联连接,二极管,公共固定 电阻和公共可变电阻。

    Ground fault circuit interrupter incorporating miswiring prevention circuitry

    公开(公告)号:US07099129B2

    公开(公告)日:2006-08-29

    申请号:US10647044

    申请日:2003-08-22

    IPC分类号: H02H3/00 H02H9/08

    CPC分类号: H02H3/338 H02H3/04

    摘要: A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.

    Shock hazard protection system
    19.
    发明授权
    Shock hazard protection system 失效
    冲击危害保护系统

    公开(公告)号:US06469881B2

    公开(公告)日:2002-10-22

    申请号:US09961824

    申请日:2001-09-24

    IPC分类号: H02H300

    摘要: A system protects people and property against electrical shock, using immersion detecting circuits, broken wire test circuits, electromechanical circuit breaking devices including coil/plunger arrangements, and relay circuit breaking mechanisms cooperative with associated circuitry, all of which are able to be incorporated as a system wholly within the load or appliance, and its associated cord set, including a plug.

    摘要翻译: 系统通过使用浸没检测电路,断线测试电路,包括线圈/柱塞装置的机电断路装置以及与相关联的电路协作的继电器断路机构来保护人员和财产免受电击,所有这些都能够作为 系统完全在负载或设备内,以及其相关的电缆组件,包括插头。

    Intelligent ground fault circuit interrupter
    20.
    发明授权
    Intelligent ground fault circuit interrupter 失效
    智能接地故障电路断路器

    公开(公告)号:US6111733A

    公开(公告)日:2000-08-29

    申请号:US288081

    申请日:1998-01-14

    摘要: An intelligent circuit interrupt system is electrically connected between an AC source and a load for interrupting a flow of AC from the source to the load upon detection of an interrupt condition. A circuit interrupter electrically connected to phase and neutral terminals of the AC source defines the interrupt condition. A relay switch with a relay coil and phase and neutral contacts is included such that line and load ends of the phase contact are electrically connected, respectively, between the interrupt means load side phase port and a phase terminal of the load. Line and load ends of the neutral contact are electrically connected, respectively, between the interrupt neutral port and a neutral terminal of the load. The relay coil is electrically coupled between load sides of said phase and neutral contacts for controlling the contacts in response to the interrupt signal. An open-contact miswiring detector (OCMD) is electrically connected to one of the phase and neutral contacts for detecting a miswiring condition when the contacts are in an open state, and a closed-contact miswiring detector (CCMD) is electrically connected to the OCMD and to one of the neutral and phase contacts for detecting a miswiring condition when the contacts are in a closed state. A timing signal generator generates system timing signals. A test circuit electrically coupled to the interrupt means and the timing signal generator tests the interrupt means operability. An alarm circuit is electrically responsive to the test circuit, the timing signal generator, the OCMD and the CCMD for communicating an open-contact miswiring condition, a closed-contact miswiring condition, an operational failure condition, and a need for external testing condition. A power supply is electrically connected between the load ends of the phase and neutral contacts, and to the timing signal generator.

    摘要翻译: 智能电路中断系统电连接在AC源和负载之间,用于在检测到中断条件时中断从源到负载的AC流。 与AC电源的相位和中性端子电连接的断路器定义了中断条件。 包括具有继电器线圈和相和中性触点的继电器开关,使得相触点的线路和负载端分别在中断装置负载侧相位端口和负载的相位端子之间电连接。 中性触点的线路和负载端分别电气连接在中断中立端口和负载的中性端子之间。 继电器线圈电耦合在所述相位的负载侧和中性触点之间,以响应于中断信号来控制触点。 一个开路接线误接线检测器(OCMD)电连接到相位和中性触点中的一个,用于检测接点处于打开状态时的接线状况,闭合接线误接线检测器(CCMD)电连接到OCMD 以及当触点处于闭合状态时用于检测接线不良状况的一个中性线和相位触点。 定时信号发生器产生系统定时信号。 电耦合到中断装置的测试电路和定时信号发生器测试中断装置的可操作性。 报警电路对测试电路,定时信号发生器,OCMD和CCMD进行电气响应,用于传送开路接触不良接线状态,闭路接触错误接线状况,操作故障状况以及对外部测试条件的需要。 电源电连接在相位的负载端和中性触点之间,并连接到定时信号发生器。