Protective device against excessive currents, in particular for resettable protection of a controlled switch
    1.
    发明授权
    Protective device against excessive currents, in particular for resettable protection of a controlled switch 失效
    防过载电流的保护装置,特别是受控开关的可复位保护

    公开(公告)号:US06342994B1

    公开(公告)日:2002-01-29

    申请号:US09367351

    申请日:2000-02-04

    CPC classification number: H03K17/08124 H02H9/026 H03K17/08144

    Abstract: A protective device against excessive currents occurring in an electric circuit between a voltage source and a load mounted downstream of said device, comprising a first triggering component with high current sensitivity and adapted to be triggered, rapidly, but reversibly, in case of excessive current in the circuit, and a second triggering component, mounted in parallel with the first, capable of bearing a temporary voltage higher than the power supply voltage, when the first component is triggered, and of being triggered rapidly and reversibly thereafter. The triggering component are preferably conductive polymer components. Also, a triac switch comprising such a protective device mounted upstream of the triac and a third component is mounted on the triac trigger.

    Abstract translation: 一种保护装置,用于防止在电压源和安装在所述装置下游的负载之间的电路中产生的电流的过大电流,包括具有高电流灵敏度的第一触发部件,并且适于在过大电流的情况下快速但可逆地触发 所述电路和与所述第一触发部件并联安装的第二触发部件能够承受比所述第一部件触发时高于所述电源电压的临时电压,并且此后被迅速且可逆地触发。 触发组分优选为导电聚合物组分。 此外,包括安装在三端双向可控硅开关元件上游的这种保护装置和第三部件的三端双向可控硅开关安装在三端双向可控硅触发器上。

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