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142 条记录 (耗时 0.017 秒)

    CIRCUIT PROTECTION ARRANGEMENT
    22.
    发明授权
    CIRCUIT PROTECTION ARRANGEMENT 失效
    电路保护装置

    公开(公告)号：EP0552273B1

    公开(公告)日：1996-12-11

    申请号：EP91919384.7

    申请日：1991-10-10

    申请人： RAYCHEM LIMITED

    发明人： ATKINS, Ian Paul

    IPC分类号： H02H3/02 ,  H02H3/087

    CPC分类号： H02H3/023 ,  H02H3/087

    摘要： A circuit protection arrangement comprises a series switching circuit that is intended to be connected in a line of the circuit and will switch to an open state when subjected to an overcurrent, and a shunt switching circuit that is open under normal operating conditions but will shunt the overcurrent across the load of the circuit or to ground when triggered by the series switching circuit. Preferably the series switching circuit comprises a switching transistor (4) that is controlled by a control transistor (6), and the shunt switching circuit comprises a shunt switching transistor (9) that is controlled by a shunt control transistor (11) which is itself controlled by the series switching circuit. The shunt switching circuit may be connected to ground or it may be connected to a back-up load or voltage foldback device such as a triac.

    SYSTEM AND METHOD FOR PROTECTING A SOLID-STATE POWER CONTROLLER
    26.
    发明公开
    SYSTEM AND METHOD FOR PROTECTING A SOLID-STATE POWER CONTROLLER 审中-公开

    公开(公告)号：EP3327886A1

    公开(公告)日：2018-05-30

    申请号：EP17201176.9

    申请日：2017-11-10

    申请人： GE Aviation Systems Limited

    发明人： HANDY, Peter James ,  GLENNY, Michael

    IPC分类号： H02H3/02 ,  H02H3/08

    CPC分类号： H02H3/10 ,  H02H1/0007 ,  H02H3/023 ,  H02H3/08

    摘要： An electrical power distribution system can distribute electricity from a source to a load, and can comprise at least one solid state power controller (SSPC) having an input coupled to the source and an output coupled to the load. The SSPC can include an open shunt switch connecting the input to ground. A control circuit can couple to the shunt switch and can be configured to detect a failure in the SSPC. A fuse can be connected between the source and the input. A failure can be detected in the SSPC and the control circuit can close the shunt switch to cause a short circuit that will blow the fuse and isolate the SSPC from the source.

    POWER SUPPLY COMPRISING MOSFET-BASED CROWBAR CIRCUIT
    27.
    发明公开
    POWER SUPPLY COMPRISING MOSFET-BASED CROWBAR CIRCUIT 审中-公开
    包含基于MOSFET的CROWBAR电路的电源

    公开(公告)号：EP3229356A1

    公开(公告)日：2017-10-11

    申请号：EP16163940.6

    申请日：2016-04-05

    申请人： ABB Schweiz AG

    发明人： Li, Haoran

    IPC分类号： H02M1/32 ,  H02H3/02 ,  H02H7/125

    CPC分类号： H02H3/023 ,  H02H7/125 ,  H02M1/32

    摘要： A Power supply (10) and a method for operating a power supply (10) are proposed. The power supply (10) comprises an AC voltage source (12), a rectifier device (14) for providing a main DC voltage (U0) via a supply line (16) to a load (18), and a safety circuitry (20) for disrupting the supply line (16), wherein the safety circuitry (20) comprises a fuse (22) arranged in the supply line (16), a converter device (24), a crowbar device (26) with a MOSFET switch (28), and a trigger device (30) for detecting an over-power in the supply line (16) and for triggering the crowbar device (26). Therein, the converter device (24) is adapted for converting an AC voltage to a DC control voltage (UC) for keeping the MOSFET switch (28) in an on-state, such that the supply line (16) is grounded and the fuse (22) is blown.

    摘要翻译： 提出了一种电源（10）和一种用于操作电源（10）的方法。 电源（10）包括AC电压源（12），用于经由电源线（16）向负载（18）提供主DC电压（U0）的整流器装置（14），以及安全电路 ），用于中断供电线路（16），其中安全电路（20）包括布置在供电线路（16）中的熔断器（22），转换器装置（24），具有MOSFET开关的撬棍装置（26） 以及触发装置（30），用于检测供电线路（16）中的过功率并触发短路装置（26）。 其中，转换器装置（24）适于将AC电压转换成DC控制电压（UC），以保持MOSFET开关（28）处于导通状态，使得电源线（16）接地并且保险丝 （22）被吹掉。