Electrical circuit for limiting switching-on current

Details Electrical circuit for limiting switching-on current Electrical circuit for limiting switching-on current

2008-05-27

2008-05-27

Sherry, Michael (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Switch actuation

C307S141000

Reexamination Certificate

active

07378762

ABSTRACT:
The invention concerns an electrical circuit for limiting the switching-on current through a load during a switching-on process, comprising an electrical component which is connected in series to the load. To ensure current limitation which is independent of the load and of the value of the supply voltage, and simultaneously to avoid switching current peaks and minimize dissipated heat, the current-limiting component is in the form of an active component which has an internal resistance, and which is controlled by a timing element in such a way that the internal resistance of the component is reduced during a switching-on process.

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