Electronic switching device and an operating method thereof

Details Electronic switching device and an operating method thereof Electronic switching device and an operating method thereof

2006-07-25

2006-07-25

Feild, Lynn (Department: 2835)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C307S131000, C361S005000

Reexamination Certificate

active

07082020

ABSTRACT:
A switching device includes at least one MOSFET switching element and at least one JFET protective element, which is connected electrically in series to the switching element and which limits the electric current to a maximum current (saturated current) and control elements, which increase the maximum current of the JFET protective element during the closing operation or in a time-delayed manner, at least in the temporal mean, to at least a higher value and subsequently reduce said maximum current to at least a lower value. The advantage of said switching device is that it allows higher starting or closing overcurrents, which are subsequently limited.

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